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2024AC01      Phys.Rev. C 109, 014911 (2024)

S.Acharya, D.Adamova, G.Aglieri Rinella, M.Agnello, N.Agrawal, Z.Ahammed, S.Ahmad, S.U.Ahn, I.Ahuja, A.Akindinov, M.Al-Turany, D.Aleksandrov, B.Alessandro, H.M.Alfanda, R.Alfaro Molina, B.Ali, A.Alici, N.Alizadehvandchali, A.Alkin, J.Alme, G.Alocco, T.Alt, A.R.Altamura, I.Altsybeev, J.R.Alvarado, M.N.Anaam, C.Andrei, N.Andreou, A.Andronic, V.Anguelov, F.Antinori, P.Antonioli, N.Apadula, L.Aphecetche, H.Appelshauser, C.Arata, S.Arcelli, M.Aresti, R.Arnaldi, J.G.M.C.A.Arneiro, I.C.Arsene, M.Arslandok, A.Augustinus, R.Averbeck, M.D.Azmi, H.Baba, A.Badala, J.Bae, Y.W.Baek, X.Bai, R.Bailhache, Y.Bailung, A.Balbino, A.Baldisseri, B.Balis, D.Banerjee, Z.Banoo, R.Barbera, F.Barile, L.Barioglio, M.Barlou, B.Barman, G.G.Barnafoldi, L.S.Barnby, V.Barret, L.Barreto, C.Bartels, K.Barth, E.Bartsch, N.Bastid, S.Basu, G.Batigne, D.Battistini, B.Batyunya, D.Bauri, J.L.Bazo Alba, I.G.Bearden, C.Beattie, P.Becht, D.Behera, I.Belikov, A.D.C.Bell Hechavarria, F.Bellini, R.Bellwied, S.Belokurova, Y.A.V.Beltran, G.Bencedi, S.Beole, Y.Berdnikov, A.Berdnikova, L.Bergmann, M.G.Besoiu, L.Betev, P.P.Bhaduri, A.Bhasin, M.A.Bhat, B.Bhattacharjee, L.Bianchi, N.Bianchi, J.Bielcik, J.Bielcikova, J.Biernat, A.P.Bigot, A.Bilandzic, G.Biro, S.Biswas, N.Bize, J.T.Blair, D.Blau, M.B.Blidaru, N.Bluhme, C.Blume, G.Boca, F.Bock, T.Bodova, A.Bogdanov, S.Boi, J.Bok, L.Boldizsar, M.Bombara, P.M.Bond, G.Bonomi, H.Borel, A.Borissov, A.G.Borquez Carcamo, H.Bossi, E.Botta, Y.E.M.Bouziani, L.Bratrud, P.Braun-Munzinger, M.Bregant, M.Broz, G.E.Bruno, M.D.Buckland, D.Budnikov, H.Buesching, S.Bufalino, P.Buhler, N.Burmasov, Z.Buthelezi, A.Bylinkin, S.A.Bysiak, M.Cai, H.Caines, A.Caliva, E.Calvo Villar, J.M.M.Camacho, P.Camerini, F.D.M.Canedo, S.L.Cantway, M.Carabas, A.A.Carballo, F.Carnesecchi, R.Caron, L.A.D.Carvalho, J.Castillo Castellanos, F.Catalano, C.Ceballos Sanchez, I.Chakaberia, P.Chakraborty, S.Chandra, S.Chapeland, M.Chartier, S.Chattopadhyay, S.Chattopadhyay, T.Cheng, C.Cheshkov, B.Cheynis, V.Chibante Barroso, D.D.Chinellato, E.S.Chizzali, J.Cho, S.Cho, P.Chochula, D.Choudhury, P.Christakoglou, C.H.Christensen, P.Christiansen, T.Chujo, M.Ciacco, C.Cicalo, F.Cindolo, M.R.Ciupek, G.Clai, F.Colamaria, J.S.Colburn, D.Colella, M.Colocci, M.Concas, G.Conesa Balbastre, Z.Conesa del Valle, G.Contin, J.G.Contreras, M.L.Coquet, P.Cortese, M.R.Cosentino, F.Costa, S.Costanza, C.Cot, J.Crkovska, P.Crochet, R.Cruz-Torres, P.Cui, A.Dainese, M.C.Danisch, A.Danu, P.Das, P.Das, S.Das, A.R.Dash, S.Dash, A.De Caro, G.de Cataldo, J.de Cuveland, A.De Falco, D.De Gruttola, N.De Marco, C.De Martin, S.De Pasquale, R.Deb, R.Del Grande, L.Dello Stritto, W.Deng, P.Dhankher, D.Di Bari, A.Di Mauro, B.Diab, R.A.Diaz, T.Dietel, Y.Ding, J.Ditzel, R.Divia, D.U.Dixit, O.Djuvsland, U.Dmitrieva, A.Dobrin, B.Donigus, J.M.Dubinski, A.Dubla, S.Dudi, P.Dupieux, M.Durkac, N.Dzalaiova, T.M.Eder, R.J.Ehlers, F.Eisenhut, R.Ejima, D.Elia, B.Erazmus, F.Ercolessi, B.Espagnon, G.Eulisse, D.Evans, S.Evdokimov, L.Fabbietti, M.Faggin, J.Faivre, F.Fan, W.Fan, A.Fantoni, M.Fasel, P.Fecchio, A.Feliciello, G.Feofilov, A.Fernandez Tellez, L.Ferrandi, M.B.Ferrer, A.Ferrero, C.Ferrero, A.Ferretti, V.J.G.Feuillard, V.Filova, D.Finogeev, F.M.Fionda, E.Flatland, F.Flor, A.N.Flores, S.Foertsch, I.Fokin, S.Fokin, E.Fragiacomo, E.Frajna, U.Fuchs, N.Funicello, C.Furget, A.Furs, T.Fusayasu, J.J.Gaardhoje, M.Gagliardi, A.M.Gago, T.Gahlaut, C.D.Galvan, D.R.Gangadharan, P.Ganoti, C.Garabatos, T.Garcia Chavez, E.Garcia-Solis, C.Gargiulo, P.Gasik, A.Gautam, M.B.Gay Ducati, M.Germain, A.Ghimouz, C.Ghosh, M.Giacalone, G.Gioachin, P.Giubellino, P.Giubilato, A.M.C.Glaenzer, P.Glassel, E.Glimos, D.J.Q.Goh, V.Gonzalez, M.Gorgon, K.Goswami, S.Gotovac, V.Grabski, L.K.Graczykowski, E.Grecka, A.Grelli, C.Grigoras, V.Grigoriev, S.Grigoryan, F.Grosa, J.F.Grosse-Oetringhaus, R.Grosso, D.Grund, N.A.Grunwald, G.G.Guardiano, R.Guernane, M.Guilbaud, K.Gulbrandsen, T.Gundem, T.Gunji, W.Guo, A.Gupta, R.Gupta, R.Gupta, K.Gwizdziel, L.Gyulai, C.Hadjidakis, F.U.Haider, S.Haidlova, H.Hamagaki, A.Hamdi, Y.Han, B.G.Hanley, R.Hannigan, J.Hansen, M.R.Haque, J.W.Harris, A.Harton, H.Hassan, D.Hatzifotiadou, P.Hauer, L.B.Havener, S.T.Heckel, E.Hellbar, H.Helstrup, M.Hemmer, T.Herman, G.Herrera Corral, F.Herrmann, S.Herrmann, K.F.Hetland, B.Heybeck, H.Hillemanns, B.Hippolyte, F.W.Hoffmann, B.Hofman, G.H.Hong, M.Horst, A.Horzyk, Y.Hou, P.Hristov, C.Hughes, P.Huhn, L.M.Huhta, T.J.Humanic, A.Hutson, D.Hutter, R.Ilkaev, H.Ilyas, M.Inaba, G.M.Innocenti, M.Ippolitov, A.Isakov, T.Isidori, M.S.Islam, M.Ivanov, M.Ivanov, V.Ivanov, K.E.Iversen, M.Jablonski, B.Jacak, N.Jacazio, P.M.Jacobs, S.Jadlovska, J.Jadlovsky, S.Jaelani, C.Jahnke, M.J.Jakubowska, M.A.Janik, T.Janson, S.Ji, S.Jia, A.A.P.Jimenez, F.Jonas, D.M.Jones, J.M.Jowett, J.Jung, M.Jung, A.Junique, A.Jusko, M.J.Kabus, J.Kaewjai, P.Kalinak, A.S.Kalteyer, A.Kalweit, V.Kaplin, A.Karasu Uysal, D.Karatovic, O.Karavichev, T.Karavicheva, P.Karczmarczyk, E.Karpechev, U.Kebschull, R.Keidel, D.L.D.Keijdener, M.Keil, B.Ketzer, S.S.Khade, A.M.Khan, S.Khan, A.Khanzadeev, Y.Kharlov, A.Khatun, A.Khuntia, B.Kileng, B.Kim, C.Kim, D.J.Kim, E.J.Kim, J.Kim, J.S.Kim, J.Kim, J.Kim, M.Kim, S.Kim, T.Kim, K.Kimura, S.Kirsch, I.Kisel, S.Kiselev, A.Kisiel, J.P.Kitowski, J.L.Klay, J.Klein, S.Klein, C.Klein-Bosing, M.Kleiner, T.Klemenz, A.Kluge, A.G.Knospe, C.Kobdaj, T.Kollegger, A.Kondratyev, N.Kondratyeva, E.Kondratyuk, J.Konig, S.A.Konigstorfer, P.J.Konopka, G.Kornakov, M.Korwieser, S.D.Koryciak, A.Kotliarov, V.Kovalenko, M.Kowalski, V.Kozhuharov, I.Kralik, A.Kravcakova, L.Krcal, M.Krivda, F.Krizek, K.Krizkova Gajdosova, M.Kroesen, M.Kruger, D.M.Krupova, E.Kryshen, V.Kucera, C.Kuhn, P.G.Kuijer, T.Kumaoka, D.Kumar, L.Kumar, N.Kumar, S.Kumar, S.Kundu, P.Kurashvili, A.Kurepin, A.B.Kurepin, A.Kuryakin, S.Kushpil, M.J.Kweon, Y.Kwon, S.L.La Pointe, P.La Rocca, A.Lakrathok, M.Lamanna, A.R.Landou, R.Langoy, P.Larionov, E.Laudi, L.Lautner, R.Lavicka, R.Lea, H.Lee, I.Legrand, G.Legras, J.Lehrbach, T.M.Lelek, R.C.Lemmon, I.Leon Monzon, M.M.Lesch, E.D.Lesser, P.Levai, X.Li, J.Lien, R.Lietava, I.Likmeta, B.Lim, S.H.Lim, V.Lindenstruth, A.Lindner, C.Lippmann, D.H.Liu, J.Liu, G.S.S.Liveraro, I.M.Lofnes, C.Loizides, S.Lokos, J.Lomker, P.Loncar, X.Lopez, E.Lopez Torres, P.Lu, F.V.Lugo, J.R.Luhder, M.Lunardon, G.Luparello, Y.G.Ma, M.Mager, A.Maire, E.M.Majerz, M.V.Makariev, M.Malaev, G.Malfattore, N.M.Malik, Q.W.Malik, S.K.Malik, L.Malinina, D.Mallick, N.Mallick, G.Mandaglio, S.K.Mandal, V.Manko, F.Manso, V.Manzari, Y.Mao, R.W.Marcjan, G.V.Margagliotti, A.Margotti, A.Marin, C.Markert, P.Martinengo, M.I.Martinez, G.Martinez Garcia, M.P.P.Martins, S.Masciocchi, M.Masera, A.Masoni, L.Massacrier, O.Massen, A.Mastroserio, O.Matonoha, S.Mattiazzo, A.Matyja, C.Mayer, A.L.Mazuecos, F.Mazzaschi, M.Mazzilli, J.E.Mdhluli, Y.Melikyan, A.Menchaca-Rocha, J.E.M.Mendez, E.Meninno, A.S.Menon, M.Meres, S.Mhlanga, Y.Miake, L.Micheletti, D.L.Mihaylov, K.Mikhaylov, A.N.Mishra, D.Miskowiec, A.Modak, B.Mohanty, M.Mohisin Khan, M.A.Molander, S.Monira, C.Mordasini, D.A.Moreira De Godoy, I.Morozov, A.Morsch, T.Mrnjavac, V.Muccifora, S.Muhuri, J.D.Mulligan, A.Mulliri, M.G.Munhoz, R.H.Munzer, H.Murakami, S.Murray, L.Musa, J.Musinsky, J.W.Myrcha, B.Naik, A.I.Nambrath, B.K.Nandi, R.Nania, E.Nappi, A.F.Nassirpour, A.Nath, C.Nattrass, M.N.Naydenov, A.Neagu, A.Negru, L.Nellen, R.Nepeivoda, S.Nese, G.Neskovic, N.Nicassio, B.S.Nielsen, E.G.Nielsen, S.Nikolaev, S.Nikulin, V.Nikulin, F.Noferini, S.Noh, P.Nomokonov, J.Norman, N.Novitzky, P.Nowakowski, A.Nyanin, J.Nystrand, M.Ogino, S.Oh, A.Ohlson, V.A.Okorokov, J.Oleniacz, A.C.Oliveira Da Silva, A.Onnerstad, C.Oppedisano, A.Ortiz Velasquez, J.Otwinowski, M.Oya, K.Oyama, Y.Pachmayer, S.Padhan, D.Pagano, G.Paic, S.Paisano-Guzman, A.Palasciano, S.Panebianco, H.Park, H.Park, J.Park, J.E.Parkkila, Y.Patley, R.N.Patra, B.Paul, H.Pei, T.Peitzmann, X.Peng, M.Pennisi, S.Perciballi, D.Peresunko, G.M.Perez, Y.Pestov, V.Petrov, M.Petrovici, R.P.Pezzi, S.Piano, M.Pikna, P.Pillot, O.Pinazza, L.Pinsky, C.Pinto, S.Pisano, M.Ploskon, M.Planinic, F.Pliquett, M.G.Poghosyan, B.Polichtchouk, S.Politano, N.Poljak, A.Pop, S.Porteboeuf-Houssais, V.Pozdniakov, I.Y.Pozos, K.K.Pradhan, S.K.Prasad, S.Prasad, R.Preghenella, F.Prino, C.A.Pruneau, I.Pshenichnov, M.Puccio, S.Pucillo, Z.Pugelova, S.Qiu, L.Quaglia, S.Ragoni, A.Rai, A.Rakotozafindrabe, L.Ramello, F.Rami, T.A.Rancien, M.Rasa, S.S.Rasanen, R.Rath, M.P.Rauch, I.Ravasenga, K.F.Read, C.Reckziegel, A.R.Redelbach, K.Redlich, C.A.Reetz, H.D.Regules-Medel, A.Rehman, F.Reidt, H.A.Reme-Ness, Z.Rescakova, K.Reygers, A.Riabov, V.Riabov, R.Ricci, M.Richter, A.A.Riedel, W.Riegler, A.G.Riffero, C.Ristea, M.V.Rodriguez, M.Rodriguez Cahuantzi, S.A.Rodriguez Ramirez, K.Roed, R.Rogalev, E.Rogochaya, T.S.Rogoschinski, D.Rohr, D.Rohrich, P.F.Rojas, S.Rojas Torres, P.S.Rokita, G.Romanenko, F.Ronchetti, A.Rosano, E.D.Rosas, K.Roslon, A.Rossi, A.Roy, S.Roy, N.Rubini, D.Ruggiano, R.Rui, P.G.Russek, R.Russo, A.Rustamov, E.Ryabinkin, Y.Ryabov, A.Rybicki, H.Rytkonen, J.Ryu, W.Rzesa, O.A.M.Saarimaki, S.Sadhu, S.Sadovsky, J.Saetre, K.Safarik, P.Saha, S.K.Saha, S.Saha, B.Sahoo, B.Sahoo, R.Sahoo, S.Sahoo, D.Sahu, P.K.Sahu, J.Saini, K.Sajdakova, S.Sakai, M.P.Salvan, S.Sambyal, D.Samitz, I.Sanna, T.B.Saramela, P.Sarma, V.Sarritzu, V.M.Sarti, M.H.P.Sas, S.Sawan, J.Schambach, H.S.Scheid, C.Schiaua, R.Schicker, F.Schlepper, A.Schmah, C.Schmidt, H.R.Schmidt, M.O.Schmidt, M.Schmidt, N.V.Schmidt, A.R.Schmier, R.Schotter, A.Schroter, J.Schukraft, K.Schweda, G.Scioli, E.Scomparin, J.E.Seger, Y.Sekiguchi, D.Sekihata, M.Selina, I.Selyuzhenkov, S.Senyukov, J.J.Seo, D.Serebryakov, L.Serksnyte, A.Sevcenco, T.J.Shaba, A.Shabetai, R.Shahoyan, A.Shangaraev, A.Sharma, B.Sharma, D.Sharma, H.Sharma, M.Sharma, S.Sharma, S.Sharma, U.Sharma, A.Shatat, O.Sheibani, K.Shigaki, M.Shimomura, J.Shin, S.Shirinkin, Q.Shou, Y.Sibiriak, S.Siddhanta, T.Siemiarczuk, T.F.Silva, D.Silvermyr, T.Simantathammakul, R.Simeonov, B.Singh, B.Singh, K.Singh, R.Singh, R.Singh, R.Singh, S.Singh, V.K.Singh, V.Singhal, T.Sinha, B.Sitar, M.Sitta, T.B.Skaali, G.Skorodumovs, M.Slupecki, N.Smirnov, R.J.M.Snellings, E.H.Solheim, J.Song, C.Sonnabend, F.Soramel, A.B.Soto-hernandez, R.Spijkers, I.Sputowska, J.Staa, J.Stachel, I.Stan, P.J.Steffanic, S.F.Stiefelmaier, D.Stocco, I.Storehaug, P.Stratmann, S.Strazzi, A.Sturniolo, C.P.Stylianidis, A.A.P.Suaide, C.Suire, M.Sukhanov, M.Suljic, R.Sultanov, V.Sumberia, S.Sumowidagdo, S.Swain, I.Szarka, M.Szymkowski, S.F.Taghavi, G.Taillepied, J.Takahashi, G.J.Tambave, S.Tang, Z.Tang, J.D.Tapia Takaki, N.Tapus, L.A.Tarasovicova, M.G.Tarzila, G.F.Tassielli, A.Tauro, A.Tavira Garcia, G.Tejeda Munoz, A.Telesca, L.Terlizzi, C.Terrevoli, S.Thakur, D.Thomas, A.Tikhonov, N.Tiltmann, A.R.Timmins, M.Tkacik, T.Tkacik, A.Toia, R.Tokumoto, K.Tomohiro, N.Topilskaya, M.Toppi, T.Tork, P.V.Torres, V.V.Torres, A.G.Torres Ramos, A.Trifiro, A.S.Triolo, S.Tripathy, T.Tripathy, S.Trogolo, V.Trubnikov, W.H.Trzaska, T.P.Trzcinski, A.Tumkin, R.Turrisi, T.S.Tveter, K.Ullaland, B.Ulukutlu, A.Uras, G.L.Usai, M.Vala, N.Valle, L.V.R.van Doremalen, M.van Leeuwen, C.A.van Veen, R.J.G.van Weelden, P.Vande Vyvre, D.Varga, Z.Varga, M.Vasileiou, A.Vasiliev, O.Vazquez Doce, O.Vazquez Rueda, V.Vechernin, E.Vercellin, S.Vergara Limon, R.Verma, L.Vermunt, R.Vertesi, M.Verweij, L.Vickovic, Z.Vilakazi, O.Villalobos Baillie, A.Villani, A.Vinogradov, T.Virgili, M.M.O.Virta, V.Vislavicius, A.Vodopyanov, B.Volkel, M.A.Volkl, K.Voloshin, S.A.Voloshin, G.Volpe, B.von Haller, I.Vorobyev, N.Vozniuk, J.Vrlakova, J.Wan, C.Wang, D.Wang, Y.Wang, Y.Wang, A.Wegrzynek, F.T.Weiglhofer, S.C.Wenzel, J.P.Wessels, J.Wiechula, J.Wikne, G.Wilk, J.Wilkinson, G.A.Willems, B.Windelband, M.Winn, J.R.Wright, W.Wu, Y.Wu, R.Xu, A.Yadav, A.K.Yadav, S.Yalcin, Y.Yamaguchi, S.Yang, S.Yano, Z.Yin, I.-K.Yoo, J.H.Yoon, H.Yu, S.Yuan, A.Yuncu, V.Zaccolo, C.Zampolli, F.Zanone, N.Zardoshti, A.Zarochentsev, P.Zavada, N.Zaviyalov, M.Zhalov, B.Zhang, C.Zhang, L.Zhang, S.Zhang, X.Zhang, Y.Zhang, Z.Zhang, M.Zhao, V.Zherebchevskii, Y.Zhi, D.Zhou, Y.Zhou, J.Zhu, Y.Zhu, S.C.Zugravel, N.Zurlo

System-size dependence of the hadronic rescattering effect at energies available at the CERN Large Hadron Collider

doi: 10.1103/PhysRevC.109.014911
Citations: PlumX Metrics


2024JU01      Phys.Lett. B 851, 138561 (2024)

A.Jungclaus, P.Doornenbal, J.Acosta, V.Vaquero, F.Browne, M.L.Cortes, A.Gargano, T.Koiwai, H.Naidja, R.Taniuchi, J.A.Tostevin, K.Wimmer, A.Algora, H.Baba, A.Fernandez, N.Lalovic, E.Nacher, B.Rubio, H.Sakurai

Position of the single-particle 3/2- state in 135Sn and the N=90 subshell closure

NUCLEAR REACTIONS 9Be(136Sn, n)135Sn, E=200 MeV/nucleon; 9Be(137Sb, np)135Sn, E=202 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, partial level scheme, level T1/2 limit, B(E2), the evolution of the neutron shell structure beyond N=82. Comparison with he predictions of shell-model calculations performed using microscopic interactions derived from the CD-Bonn and N3LO NN potentials. The Radioactive Isotope Beam Factory (RIBF) operated by the RIKEN Nishina Center for Accelerator-Based Science and the Center for Nuclear Study of the University of Tokyo.

doi: 10.1016/j.physletb.2024.138561
Citations: PlumX Metrics


2024LI18      Phys.Rev. C 109, 034312 (2024)

B.D.Linh, A.Corsi, A.Gillibert, A.Obertelli, P.Doornenbal, C.Barbieri, T.Duguet, M.Gomez-Ramos, J.D.Holt, B.S.Hu, T.Miyagi, A.M.Moro, P.Navratil, K.Ogata, S.Peru, N.T.T.Phuc, N.Shimizu, V.Soma, Y.Utsuno, N.L.Achouri, H.Baba, F.Browne, D.Calvet, F.Chateau, S.Chen, N.Chiga, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, H.N.Liu, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, O.Aktas, T.Aumann, L.X.Chung, F.Flavigny, S.Franchoo, I.Gasparic, R.B.Gerst, J.Gibelin, K.I.Hahn, N.T.Khai, D.Kim, T.Koiwai, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, D.Sohler, P.-A.Soderstrom, S.Takeuchi, H.Tornqvist, V.Vaquero, V.Wagner, S.T.Wang, V.Werner, X.Xu, Y.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

Onset of collectivity for argon isotopes close to N=32

doi: 10.1103/PhysRevC.109.034312
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2024MO02      Phys.Rev.Lett. 132, 082501 (2024)

B.Monteagudo, F.M.Marques, J.Gibelin, N.A.Orr, A.Corsi, Y.Kubota, J.Casal, J.Gomez-Camacho, G.Authelet, H.Baba, C.Caesar, D.Calvet, A.Delbart, M.Dozono, J.Feng, F.Flavigny, J.-M.Gheller, A.Giganon, A.Gillibert, K.Hasegawa, T.Isobe, Y.Kanaya, S.Kawakami, D.Kim, Y.Kiyokawa, M.Kobayashi, N.Kobayashi, T.Kobayashi, Y.Kondo, Z.Korkulu, S.Koyama, V.Lapoux, Y.Maeda, T.Motobayashi, T.Miyazaki, T.Nakamura, N.Nakatsuka, Y.Nishio, A.Obertelli, A.Ohkura, S.Ota, H.Otsu, T.Ozaki, V.Panin, S.Paschalis, E.C.Pollacco, S.Reichert, J.-Y.Rousse, A.T.Saito, S.Sakaguchi, M.Sako, C.Santamaria, M.Sasano, H.Sato, M.Shikata, Y.Shimizu, Y.Shindo, L.Stuhl, T.Sumikama, Y.L.Sun, M.Tabata, Y.Togano, J.Tsubota, T.Uesaka, Z.H.Yang, J.Yasuda, K.Yoneda, J.Zenihiro

Mass, Spectroscopy, and Two-Neutron Decay of 16Be

RADIOACTIVITY 16Be(2n) [from 1H(17B, 2p), E=277 MeV/nucleon]; measured decay products, En, In; deduced resonance energies, J, π, Q-value. Comparison with calculations incorporating the evolution of the wave function during the decay as a genuine three-body process reproduced the principal characteristics of the neutron-neutron energy spectra for both levels, indicating that the ground state exhibits a strong spatially compact dineutron component. The 15 cm thick liquid hydrogen target of MINOS, the BigRIPS fragment separator, the Radioactive Isotope Beam Factory of the RIKEN Nishina Center.

doi: 10.1103/PhysRevLett.132.082501
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2023BR09      Eur.Phys.J. A 59, 199 (2023)

F.Browne, A.M.Bruce, T.Sumikama, I.Nishizuka, S.Nishimura, P.Doornenbal, J.G.Li, G.Lorusso, P.-A.Soderstrom, P.M.Walker, H.Watanabe, F.R.Xu, R.Daido, Z.Patel, S.Rice, L.Sinclair, J.Wu, Z.Y.Xu, A.Yagi, H.Baba, N.Chiga, R.Carroll, F.Didierjean, Y.Fang, N.Fukuda, G.Gey, E.Ideguchi, N.Inabe, T.Isobe, D.Kameda, I.Kojouharov, N.Kurz, T.Kubo, S.Lalkovski, Z.Li, R.Lozeva, N.Nishibata, A.Odahara, Zs.Podolyak, P.H.Regan, O.J.Roberts, H.Sakurai, H.Schaffner, G.S.Simpson, H.Suzuki, H.Takeda, M.Tanaka, J.Taprogge, V.Werner, O.Wieland

Interpretation of metastable states in the N > 70 Zr region

RADIOACTIVITY 111Zr, 112,113Nb, 115Mo, 108,109Nb, 113Tc, 117,119Ru, 120,122Rh(IT) [from 9Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced γ-ray energies, T1/2, decay schemes. Comparison with calculations. The Radioactive Isotope Beam Factory, operated by the RIKEN Nishina Center and the Center for Nuclear Study, University of Tokyo.

doi: 10.1140/epja/s10050-023-01103-7
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2023CH26      Phys.Lett. B 843, 138025 (2023)

S.Chen, F.Browne, P.Doornenbal, J.Lee, A.Obertelli, Y.Tsunoda, T.Otsuka, Y.Chazono, G.Hagen, J.D.Holt, G.R.Jansen, K.Ogata, N.Shimizu, Y.Utsuno, K.Yoshida, N.L.Achouri, H.Baba, D.Calvet, F.Chateau, N.Chiga, A.Corsi, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, H.N.Liu, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, O.Aktas, T.Aumann, L.X.Chung, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, D.Kim, T.Koiwai, Y.Kondo, P.Koseoglou, C.Lehr, B.D.Linh, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, P.-A.Soderstrom, D.Sohler, S.Takeuchi, H.Tornqvist, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

Level structures of 56, 58Ca cast doubt on a doubly magic 60Ca

NUCLEAR REACTIONS 1H(57Sc, 2p)56Ca, E=209 MeV/nucleon; 1H(59Sc, 2p)58Ca, E=199 MeV/nucleon, [57,59Sc secondary beams from 9Be(70Zn, X), E=345 MeV/nucleon, followed by separation and identification of ions of interest using the BigRIPS separator at RIBF-RIKEN facility]; measured reaction residues of 56Ca and 58Ca through identification by the SAMURAI spectrometer, Doppler-corrected Eγ, Iγ, (particle)γ-coin using the DALI2+ array using MINOS liquid hydrogen target. 56,58Ca; deduced energies of the first 2+ levels. Comparison with shell-model calculations with the GXPF1B Hamiltonian in full pf model space, and the state-of-the-art ab initio approaches: VS-IMSRG method, and CC calculations. Systematics of energies of the first 2+ states and S(2n) from experiment (N=22-36) and theory in N=22-54 Ca isotopes.

doi: 10.1016/j.physletb.2023.138025
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2023EL04      Phys.Lett. B 844, 138072 (2023)

Z.Elekes, V.Panin, T.R.Rodriguez, K.Sieja, D.S.Ahn, A.Al-Adili, H.Baba, A.I.Stefanescu, K.J.Cook, Cs.Dosa, N.Fukuda, J.Gao, J.Gibelin, K.I.Hahn, Z.Halasz, S.W.Huang, T.Isobe, M.M.Juhasz, D.Kim, T.Kobayashi, Y.Kondo, Z.Korkulu, A.Kurihara, I.Kuti, H.Miki, K.Miki, T.Motobayashi, H.Otsu, A.Saastamoinen, M.Sasano, H.Sato, T.Shimada, Y.Shimizu, L.G.Sobotka, I.Stefanescu, L.Stuhl, H.Suzuki, H.Takeda, Y.Togano, T.Tomai, L.Trache, D.Tudor, T.Uesaka, Y.Utsuki, H.Wang, A.Yasuda, K.Yoneda, Y.Yoshitome

Shape coexistence in 66Se

NUCLEAR REACTIONS 12C(67Se, n)66Se, E=170-250 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies and relative intensities, γ-ray production σ, J, π, partial level scheme, shape coexistence. Comparison with theoretical calculations. The CATANA array, Radioactive Isotope Beam Factory operated by the RIKEN Nishina Center and by the Center for Nuclear Study of the University of Tokyo.

doi: 10.1016/j.physletb.2023.138072
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2023KI02      Phys.Lett. B 836, 137629 (2023)

S.Kim, J.W.Hwang, Y.Satou, N.A.Orr, T.Nakamura, Y.Kondo, J.Gibelin, N.L.Achouri, T.Aumann, H.Baba, F.Delaunay, P.Doornenbal, N.Fukuda, N.Inabe, T.Isobe, D.Kameda, D.Kanno, N.Kobayashi, T.Kobayashi, T.Kubo, S.Leblond, J.Lee, F.M.Marques, R.Minakata, T.Motobayashi, D.Murai, T.Murakami, K.Muto, T.Nakashima, N.Nakatsuka, A.Navin, S.Nishi, S.Ogoshi, H.Otsu, H.Sato, Y.Shimizu, H.Suzuki, K.Takahashi, H.Takeda, S.Takeuchi, R.Tanaka, Y.Togano, A.G.Tuff, M.Vandebrouck, K.Yoneda

Unbound states in 17C and p-sd shell-model interactions

NUCLEAR REACTIONS C(18C, n)17C, E=245 MeV/nucleon; measured reaction products. 16C; deduced resonance energies and parameters, partial σ, spectroscopic factors, J, π. Comparison with shell-model (YSOX) calculations. The BigRIPS fragment separator at the RIKEN–RIBF laboratory.

doi: 10.1016/j.physletb.2022.137629
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2023KO15      Nature(London) 620, 965 (2023)

Y.Kondo, N.L.Achouri, H.Al Falou, L.Atar, T.Aumann, H.Baba, K.Boretzky, C.Caesar, D.Calvet, H.Chae, N.Chiga, A.Corsi, F.Delaunay, A.Delbart, Q.Deshayes, Zs.Dombradi, C.A.Douma, A.Ekstrom, Z.Elekes, C.Forssen, I.Gasparic, J.-M.Gheller, J.Gibelin, A.Gillibert, G.Hagen, M.N.Harakeh, A.Hirayama, C.R.Hoffman, M.Holl, A.Horvat, A.Horvath, J.W.Hwang, T.Isobe, W.G.Jiang, J.Kahlbow, N.Kalantar-Nayestanaki, S.Kawase, S.Kim, K.Kisamori, T.Kobayashi, D.Korper, S.Koyama, I.Kuti, V.Lapoux, S.Lindberg, F.M.Marques, S.Masuoka, J.Mayer, K.Miki, T.Murakami, M.Najafi, T.Nakamura, K.Nakano, N.Nakatsuka, T.Nilsson, A.Obertelli, K.Ogata, F.de Oliveira Santos, N.A.Orr, H.Otsu, T.Otsuka, T.Ozaki, V.Panin, T.Papenbrock, S.Paschalis, A.Revel, D.Rossi, A.T.Saito, T.Y.Saito, M.Sasano, H.Sato, Y.Satou, H.Scheit, F.Schindler, P.Schrock, M.Shikata, N.Shimizu, Y.Shimizu, H.Simon, D.Sohler, O.Sorlin, L.Stuhl, Z.H.Sun, S.Takeuchi, M.Tanaka, M.Thoennessen, H.Tornqvist, Y.Togano, T.Tomai, J.Tscheuschner, J.Tsubota, N.Tsunoda, T.Uesaka, Y.Utsuno, I.Vernon, H.Wang, Z.Yang, M.Yasuda, K.Yoneda, S.Yoshida

First observation of 28O

NUCLEAR REACTIONS H(29F, X)27O/28O, E=235 MeV/nucleon; measured reaction products; deduced yields. The hydrogen target was surrounded by the MINOS Time Projection Chamber, SAMURAI spectrometer, RIKEN RI Beam Factory.

RADIOACTIVITY 28O(4n), 27O(3n); measured decay products, En, In; deduced decay energy spectra and schemes from the measured momenta using the invariant-mass technique, resonance parameters. Comparison with the large-scale shell-model calculations using the new chiral effective field theory (EEdf3) interaction.

doi: 10.1038/s41586-023-06352-6
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2023LI32      Eur.Phys.J. A 59, 121 (2023)

H.N.Liu, F.Flavigny, H.Baba, M.Boehmer, U.Bonnes, V.Borshchov, P.Doornenbal, N.Ebina, M.Enciu, A.Frotscher, R.Gernhauser, V.Girard Alcindor, D.Goupilliere, J.Heuser, R.Kapell, Y.Kondo, H.Lee, J.Lehnert, T.Matsui, A.Matta, T.Nakamura, A.Obertelli, T.Pohl, M.Protsenko, M.Sasano, Y.Satou, C.J.Schmidt, K.Schunemann, C.Simons, Y.L.Sun, J.Tanaka, Y.Togano, T.Tomai, I.Tymchuk, T.Uesaka, R.Visinka, H.Wang, F.Wienholtz

STRASSE: a silicon tracker for quasi-free scattering measurements at the RIBF

doi: 10.1140/epja/s10050-023-01018-3
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2023LI56      Phys.Rev.Lett. 131, 212501 (2023)

P.J.Li, D.Beaumel, J.Lee, M.Assie, S.Chen, S.Franchoo, J.Gibelin, F.Hammache, T.Harada, Y.Kanada-En'yo, Y.Kubota, S.Leblond, P.F.Liang, T.Lokotko, M.Lyu, F.M.Marques, Y.Matsuda, K.Ogata, H.Otsu, E.Rindel, L.Stuhl, D.Suzuki, Y.Togano, T.Tomai, X.X.Xu, K.Yoshida, J.Zenihiro, N.L.Achouri, T.Aumann, H.Baba, G.Cardella, S.Ceruti, A.I.Stefanescu, A.Corsi, A.Frotscher, J.Gao, A.Gillibert, K.Inaba, T.Isobe, T.Kawabata, N.Kitamura, T.Kobayashi, Y.Kondo, A.Kurihara, H.N.Liu, H.Miki, T.Nakamura, A.Obertelli, N.A.Orr, V.Panin, M.Sasano, T.Shimada, Y.L.Sun, J.Tanaka, L.Trache, D.Tudor, T.Uesaka, H.Wang, H.Yamada, Z.H.Yang, M.Yasuda

Validation of the 10Be Ground-State Molecular Structure Using 10Be(p, pα)6He Triple Differential Reaction Cross-Section Measurements

NUCLEAR REACTIONS 1H(10Be, pα), E ∼ 150 MeV/nucleon; measured reaction products. 6He, 10Be; deduced excitation energy spectra, σ(θ, E), α-cluster molecular structure of the 10Be ground-state. Comparison with calculations performed in a microscopic framework using successively the Tohsaki-Horiuchi-Schuck-Ropke product wave function and the wave function deduced from antisymmetrized molecular dynamics calculations. The Radioactive Isotope Beam Factory at RIKEN.

doi: 10.1103/PhysRevLett.131.212501
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2023MO01      Phys.Rev. C 107, 014311 (2023)

B.Moon, C.-B.Moon, A.Odahara, R.Lozeva, S.Nishimura, C.Yuan, F.Browne, P.Doornenbal, G.Lorusso, Z.Patel, S.Rice, L.Sinclair, P.-A.Soderstrom, T.Sumikama, H.Watanabe, J.Wu, Z.Y.Xu, A.Yagi, D.S.Ahn, H.Baba, F.L.Bello Garrote, R.Daido, J.M.Daugas, F.Didierjean, Y.Fang, N.Fukuda, B.Hong, E.Ideguchi, N.Inabe, T.Ishigaki, T.Isobe, H.S.Jung, D.Kameda, I.Kojouharov, T.Komatsubara, T.Kubo, Y.K.Kwon, C.S.Lee, P.Lee, S.Morimoto, D.Murai, M.Niikura, H.Nishibata, I.Nishizuka, H.Sakurai, Y.Shimizu, H.Suzuki, H.Takeda, K.Tshoo, R.Yokoyama

Gamow-Teller decay of 142Te to 142I

RADIOACTIVITY 142Te(β-)[from 9Be(238U, F), E=345 MeV/nucleon]; measured Eβ, Iβ, Eγ, Iγ, βγ-coin, γγ-coin; deduced T1/2, log ft, branchings. 142I; deduced levels J, π, configurations; calculated single-quasiparticle energies of proton and neutron, excitation energies, occupancies of neutron and proton orbitals. Deformed shell model calculations. Systematics of 1+ states of odd-odd I, Cs, and La isotopes. Wide-range Active Silicon Strip Stopper Array for β and ion detection (WAS3ABi) coupled with EUROBALL-RIKEN Cluster Array (EURICA) which consisted of 12 cluster detectors at RIKEN.

doi: 10.1103/PhysRevC.107.014311
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2023PE06      Phys.Rev. C 107, 044301 (2023)

L.G.Pedersen, E.Sahin, A.Gorgen, F.L.Bello Garrote, Y.Tsunoda, T.Otsuka, M.Niikura, S.Nishimura, Z.Xu, H.Baba, G.Benzoni, F.Browne, A.M.Bruce, S.Ceruti, F.C.L.Crespi, R.Daido, G.de Angelis, M.-C.Delattre, Zs.Dombradi, P.Doornenbal, Y.Fang, S.Franchoo, G.Gey, A.Gottardo, T.Isobe, P.R.John, H.S.Jung, I.Kojouharov, T.Kubo, N.Kurz, I.Kuti, Z.Li, G.Lorusso, I.Matea, K.Matsui, D.Mengoni, T.Miyazaki, V.Modamio, S.Momiyama, A.I.Morales, P.Morfouace, D.R.Napoli, F.Naqvi, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, S.Rice, H.Sakurai, H.Schaffner, L.Sinclair, P.-A.Soderstrom, D.Sohler, I.G.Stefan, T.Sumikama, D.Suzuki, R.Taniuchi, J.Taprogge, Z.Vajta, J.J.Valiente-Dobon, H.Watanabe, V.Werner, J.Wu, A.Yagi, M.Yalcinkaya, R.Yokoyama, K.Yoshinaga

First spectroscopic study of odd-odd 78Cu

RADIOACTIVITY 78Ni(β-)[from 9Be(238U, X), E=345 MeV/nucleon]; measured Eγ, Iγ, βγ-coin, γγ-coin; deduced β-feeding, γ-transition intensities. 78Cu; deduced levels J, π, T1/2 of isomer state. Comparison with Monte Carlo shell model (MCSM) calculations. Wide-range active silicon-strip stopper array for beta and ion detection (WAS3ABi) with EURICA HPGe cluster det ector array at RIBF (RIKEN).

NUCLEAR STRUCTURE 78Cu; calculated levels, J, π, occupation numbers of proton and neutron orbitals, excitation energies of the negative-parity multiplets, configurations. Monte Carlo shell model calculations performed using A3DA-m interaction. Comparison with experimental data.

doi: 10.1103/PhysRevC.107.044301
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2023PO05      Phys.Rev.Lett. 130, 172501 (2023)

T.Pohl, Y.L.Sun, A.Obertelli, J.Lee, M.Gomez-Ramos, K.Ogata, K.Yoshida, B.S.Cai, C.X.Yuan, B.A.Brown, H.Baba, D.Beaumel, A.Corsi, J.Gao, J.Gibelin, A.Gillibert, K.I.Hahn, T.Isobe, D.Kim, Y.Kondo, T.Kobayashi, Y.Kubota, P.Li, P.Liang, H.N.Liu, J.Liu, T.Lokotko, F.M.Marques, Y.Matsuda, T.Motobayashi, T.Nakamura, N.A.Orr, H.Otsu, V.Panin, S.Y.Park, S.Sakaguchi, M.Sasano, H.Sato, H.Sakurai, Y.Shimizu, A.I.Stefanescu, L.Stuhl, D.Suzuki, Y.Togano, D.Tudor, T.Uesaka, H.Wang, X.Xu, Z.H.Yang, K.Yoneda, J.Zenihiro

Multiple Mechanisms in Proton-Induced Nucleon Removal at ∼ 100 MeV/Nucleon

NUCLEAR REACTIONS 1H(14O, X), E ∼ 100 MeV/nucleon; measured reaction products. 13N, 13O; deduced inclusive σ and parallel momentum distributions for proton-induced single proton- and neutron-removal reactions from the neutron-deficient 14O nucleus with large Fermi-surface asymmetry. Comparison with he state-of-the-art reaction models, with nuclear structure inputs from many-body shell-model calculations.

doi: 10.1103/PhysRevLett.130.172501
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2023WA18      Phys.Lett. B 843, 138038 (2023)

H.Wang, M.Yasuda, Y.Kondo, T.Nakamura, J.A.Tostevin, K.Ogata, T.Otsuka, A.Poves, N.Shimizu, K.Yoshida, N.L.Achouri, H.Al Falou, L.Atar, T.Aumann, H.Baba, K.Boretzky, C.Caesar, D.Calvet, H.Chae, N.Chiga, A.Corsi, H.L.Crawford, F.Delaunay, A.Delbart, Q.Deshayes, Zs.Dombradi, C.Douma, Z.Elekes, P.Fallon, I.Gasparic, J.-M.Gheller, J.Gibelin, A.Gillibert, M.N.Harakeh, A.Hirayama, C.R.Hoffman, M.Holl, A.Horvat, A.Horvath, J.W.Hwang, T.Isobe, J.Kahlbow, N.Kalantar-Nayestanaki, S.Kawase, S.Kim, K.Kisamori, T.Kobayashi, D.Korper, S.Koyama, I.Kuti, V.Lapoux, S.Lindberg, F.M.Marques, S.Masuoka, J.Mayer, K.Miki, T.Murakami, M.A.Najafi, K.Nakano, N.Nakatsuka, T.Nilsson, A.Obertelli, N.A.Orr, H.Otsu, T.Ozaki, V.Panin, S.Paschalis, A.Revel, D.Rossi, A.T.Saito, T.Saito, M.Sasano, H.Sato, Y.Satou, H.Scheit, F.Schindler, P.Schrock, M.Shikata, Y.Shimizu, H.Simon, D.Sohler, O.Sorlin, L.Stuhl, S.Takeuchi, M.Tanaka, M.Thoennessen, H.Tornqvist, Y.Togano, T.Tomai, J.Tscheuschner, J.Tsubota, T.Uesaka, Z.Yang, K.Yoneda

Intruder configurations in 29Ne at the transition into the island of inversion: Detailed structure study of 28Ne

NUCLEAR REACTIONS 1H(29Ne, np)28Ne, E=240 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies and relative intensities, partial level scheme, J, π, one-neutron removal σ, parallel momentum distributions. Comparison with available data. The MINOS target was surrounded by the DALI2 array, the Radioactive Isotope Beam Factory (RIBF), operated by the RIKEN Nishina Center and the Center for Nuclear Study, University of Tokyo.

doi: 10.1016/j.physletb.2023.138038
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2023YA30      Phys.Rev.Lett. 131, 242501 (2023)

Z.H.Yang, Y.L.Ye, B.Zhou, H.Baba, R.J.Chen, Y.C.Ge, B.S.Hu, H.Hua, D.X.Jiang, M.Kimura, C.Li, K.A.Li, J.G.Li, Q.T.Li, X.Q.Li, Z.H.Li, J.L.Lou, M.Nishimura, H.Otsu, D.Y.Pang, W.L.Pu, R.Qiao, S.Sakaguchi, H.Sakurai, Y.Satou, Y.Togano, K.Tshoo, H.Wang, S.Wang, K.Wei, J.Xiao, F.R.Xu, X.F.Yang, K.Yoneda, H.B.You, T.Zheng

Observation of the Exotic 0+2 Cluster State in 8He

NUCLEAR REACTIONS C, 1H(8He, 8He), E=82.3 MeV/nucleon; measured reaction products, En, In. 6,8He; deduced σ(θ), resonant state J, π, large isoscalar monopole transition strength, and the emission of a strongly correlated neutron pair. Comparison with theoretical calculations. RIPS beam line of RIKEN Nishina Center.

doi: 10.1103/PhysRevLett.131.242501
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2023YO04      Phys.Rev. C 108, 064307 (2023)

R.Yokoyama, R.Grzywacz, B.C.Rasco, N.Brewer, K.P.Rykaczewski, I.Dillmann, J.L.Tain, S.Nishimura, D.S.Ahn, A.Algora, J.M.Allmond, J.Agramunt, H.Baba, S.Bae, C.G.Bruno, R.Caballero-Folch, F.Calvino, P.J.Coleman-Smith, G.Cortes, T.Davinson, C.Domingo-Pardo, A.Estrade, N.Fukuda, S.Go, C.J.Griffin, J.Ha, O.Hall, L.J.Harkness-Brennan, J.Heideman, T.Isobe, D.Kahl, M.Karny, T.Kawano, L.H.Khiem, T.T.King, G.G.Kiss, A.Korgul, S.Kubono, M.Labiche, I.Lazarus, J.Liang, J.Liu, G.Lorusso, M.Madurga, K.Matsui, K.Miernik, F.Montes, A.I.Morales, P.Morrall, N.Nepal, R.D.Page, V.H.Phong, M.Piersa-Silkowska, M.Prydderch, V.F.E.Pucknell, M.M.Rajabali, B.Rubio, Y.Saito, H.Sakurai, Y.Shimizu, J.Simpson, M.Singh, D.W.Stracener, T.Sumikama, H.Suzuki, H.Takeda, A.Tarifeno-Saldivia, S.L.Thomas, A.Tolosa-Delgado, M.Wolinska-Cichocka, P.J.Woods, X.X.Xu

β-delayed neutron emissions from N>50 gallium isotopes

doi: 10.1103/PhysRevC.108.064307
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2022AH02      Phys.Rev.Lett. 129, 212502 (2022)

D.S.Ahn, J.Amano, H.Baba, N.Fukuda, H.Geissel, N.Inabe, S.Ishikawa, N.Iwasa, T.Komatsubara, T.Kubo, K.Kusaka, D.J.Morrissey, T.Nakamura, M.Ohtake, H.Otsu, T.Sakakibara, H.Sato, B.M.Sherrill, Y.Shimizu, T.Sumikama, H.Suzuki, H.Takeda, O.B.Tarasov, H.Ueno, Y.Yanagisawa, K.Yoshida

Discovery of 39Na

NUCLEAR REACTIONS 9Be(48Ca, X)39Na/35Na/37Na/40Mg/41Al/34Ne, E=345 eV/nucleon; measured reaction products; deduced new isotope 39Na, lack of 35,36Ne, the neutron dripline nucleus of neon. RIKEN Nishina Center Radioactive Isotope Beam Factory.

doi: 10.1103/PhysRevLett.129.212502
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2022DU08      Nature(London) 606, 678 (2022)

M.Duer, T.Aumann, R.Gernhauser, V.Panin, S.Paschalis, D.M.Rossi, N.L.Achouri, D.Ahn, H.Baba, C.A.Bertulani, M.Bohmer, K.Boretzky, C.Caesar, N.Chiga, A.Corsi, D.Cortina-Gil, C.A.Douma, F.Dufter, Z.Elekes, J.Feng, B.Fernandez-Dominguez, U.Forsberg, N.Fukuda, I.Gasparic, Z.Ge, J.M.Gheller, J.Gibelin, A.Gillibert, K.I.Hahn, Z.Halasz, M.N.Harakeh, A.Hirayama, M.Holl, N.Inabe, T.Isobe, J.Kahlbow, N.Kalantar-Nayestanaki, D.Kim, S.Kim, T.Kobayashi, Y.Kondo, D.Korper, P.Koseoglou, Y.Kubota, I.Kuti, P.J.Li, C.Lehr, S.Lindberg, Y.Liu, F.M.Marques, S.Masuoka, M.Matsumoto, J.Mayer, K.Miki, B.Monteagudo, T.Nakamura, T.Nilsson, A.Obertelli, N.A.Orr, H.Otsu, S.Y.Park, M.Parlog, P.M.Potlog, S.Reichert, A.Revel, A.T.Saito, M.Sasano, H.Scheit, F.Schindler, S.Shimoura, H.Simon, L.Stuhl, H.Suzuki, D.Symochko, H.Takeda, J.Tanaka, Y.Togano, T.Tomai, H.T.Tornqvist, J.Tscheuschner, T.Uesaka, V.Wagner, H.Yamada, B.Yang, L.Yang, Z.H.Yang, M.Yasuda, K.Yoneda, L.Zanetti, J.Zenihiro, M.V.Zhukov

Observation of a correlated free four-neutron system

NUCLEAR REACTIONS 1H(8He, pα)4NN, E=156 MeV/nucleon; measured reaction products, Ep, Ip, Eα, Iα. 4NN; deduced missing mass spectra, 4NN resonance, resonance parameters. Comparison with theoretical calculations. The Radioactive Ion Beam Factory operated by the RIKEN Nishina Center and the Center for Nuclear Study, University of Tokyo, using the Superconducting Analyzer for Multi-particles from Radio Isotope Beams (SAMURAI).

doi: 10.1038/s41586-022-04827-6
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2022EN01      Phys.Rev.Lett. 129, 262501 (2022)

M.Enciu, H.N.Liu, A.Obertelli, P.Doornenbal, F.Nowacki, K.Ogata, A.Poves, K.Yoshida, N.L.Achouri, H.Baba, F.Browne, D.Calvet, F.Chateau, S.Chen, N.Chiga, A.Corsi, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, O.Aktas, T.Aumann, L.X.Chung, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, D.Kim, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, P.J.Li, B.D.Linh, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, P.-A.Soderstrom, D.Sohler, S.Takeuchi, H.Toernqvist, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

Extended p3/2 Neutron Orbital and the N=32 Shell Closure in 52Ca

NUCLEAR REACTIONS 1H(52Ca, np)51Ca, E=190-270 MeV/nucleon; measured reaction products, Eγ, Iγ. 51,52Ca; deduced γ-ray energies, single-particle neutron configurations, neutron knockout partial σ, J, π, root-mean-square radii of the neutron orbitals. Comparison with modified-shell-model predictions, the distorted-wave impulse approximation reaction framework. The Radioactive Isotope Beam Factory of RIKEN, operated jointly by the RIKEN Nishina Center and the Center for Nuclear Study, University of Tokyo.

doi: 10.1103/PhysRevLett.129.262501
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2022GE01      Phys.Rev. C 105, 024302 (2022)

R.-B.Gerst, A.Blazhev, K.Moschner, P.Doornenbal, A.Obertelli, K.Nomura, J.-P.Ebran, S.Hilaire, J.Libert, G.Authelet, H.Baba, D.Calvet, F.Chateau, S.Chen, A.Corsi, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, V.Lapoux, T.Motobayashi, M.Niikura, N.Paul, J.-Y.Rousse, H.Sakurai, C.Santamaria, D.Steppenbeck, R.Taniuchi, T.Uesaka, T.Ando, T.Arici, F.Browne, A.M.Bruce, R.Caroll, L.X.Chung, M.L.Cortes, M.Dewald, B.Ding, F.Flavigny, S.Franchoo, M.Gorska, A.Gottardo, J.Jolie, A.Jungclaus, J.Lee, M.Lettmann, B.D.Linh, J.Liu, Z.Liu, C.Lizarazo, S.Momiyama, S.Nagamine, N.Nakatsuka, C.R.Nita, C.Nobs, L.Olivier, R.Orlandi, Z.Patel, Zs.Podolyak, M.Rudigier, T.Saito, C.Shand, P.-A.Soderstrom, I.Stefan, V.Vaquero, V.Werner, K.Wimmer, Z.Xu

γ-ray spectroscopy of low-lying yrast and non-yrast states in neutron-rich 94, 95, 96Kr

NUCLEAR REACTIONS 1H(94Kr, p), (95Kr, p)(95Kr, np), (97Rb, 2p), (96Kr, p), (96Kr, np), (97Rb, n2p), E≈180 MeV/nucleon [secondary beams from 9Be(238U, X), E=345 MeV/nucleon primary reaction]; measured reaction products, Eγ, Iγ, Ep, Ip, pp-coin, gγ∓coin, pγ-coin. 94,95,96Kr; deduced levels, J, π, T1/2 of isomer and levels in 95Kr. Comparison to five-dimensional collective Hamiltonian (5DCH) beyond-mean-field model and mapped IBM calculations. Beam delivered via the ZeroDegree spectrometer to the Euroball RIKEN Cluster Array (EURICA) at RIBF-RIKEN.

doi: 10.1103/PhysRevC.105.024302
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2022KI06      Few-Body Systems 63, 21 (2022)

S.Kim, J.Hwang, Y.Satou, N.A.Orr, T.Nakamura, Y.Kondo, J.Gibelin, N.L.Achouri, T.Aumann, H.Baba, F.Delaunay, P.Doornenbal, N.Fukuda, N.Inabe, T.Isobe, D.Kameda, D.Kanno, N.Kobayashi, T.Kobayashi, T.Kubo, S.Leblond, J.Lee, F.M.Marques, R.Minakata, T.Motobayashi, D.Murai, T.Murakami, K.Muto, T.Nakashima, N.Nakatsuka, A.Navin, S.Nishi, S.Ogoshi, H.Otsu, H.Sato, Y.Shimizu, H.Suzuki, K.Takahashi, H.Takeda, S.Takeuchi, R.Tanaka, Y.Togano, A.G.Tuff, M.Vandebrouck, K.-i.Yoneda

Spectroscopy of 17C Above the Neutron Separation Energy

NUCLEAR REACTIONS C(18C, X)17C/16C, E<245 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced σ(E), six resonances, partial σ. SAMURAI spectrometer at RIBF of RIKEN.

doi: 10.1007/s00601-022-01725-5
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2022KI23      Astrophys.J. 936, 107 (2022)

G.G.Kiss, A.Vitez-Sveiczer, Y.Saito, A.Tarifeno-Saldivia, M.Pallas, J.L.Tain, I.Dillmann, J.Agramunt, A.Algora, C.Domingo-Pardo, A.Estrade, C.Appleton, J.M.Allmond, P.Aguilera, H.Baba, N.T.Brewer, C.Bruno, R.Caballero-Folch, F.Calvino, P.J.Coleman-Smith, G.Cortes, T.Davinson, N.Fukuda, Z.Ge, S.Go, C.J.Griffin, R.K.Grzywacz, O.Hall, A.Horvath, J.Ha, L.J.Harkness-Brennan, T.Isobe, D.Kahl, T.T.King, A.Korgul, S.Kovacs, R.Krucken, S.Kubono, M.Labiche, J.Liu, J.Liang, M.Madurga, K.Miernik, F.Molina, A.I.Morales, M.R.Mumpower, E.Nacher, A.Navarro, N.Nepal, S.Nishimura, M.Piersa-Silkowska, V.Phong, B.C.Rasco, B.Rubio, K.P.Rykaczewski, J.Romero-Barrientos, H.Sakurai, L.Sexton, Y.Shimizu, M.Singh, T.Sprouse, T.Sumikama, R.Surman, H.Suzuki, T.N.Szegedi, H.Takeda, A.Tolosa, K.Wang, M.Wolinska-Cichocka, P.Woods, R.Yokoyama, Z.Xu

Measuring the β-decay Properties of Neutron-rich Exotic Pm, Sm, Eu, and Gd Isotopes to Constrain the Nucleosynthesis Yields in the Rare-earth Region

NUCLEAR REACTIONS 9Be(238U, X), E=345 MeV/nucleon; measured reaction products, TOF, Eβ, Iβ. 159,160,161,162,163,164,165,166Pm, 161,162,163,164,165,166,167,168Sm, 165,166,167,168,169,170Eu, 167,168,169,170,171,172Gd; deduced new isotopes T1/2 and β-delayed neutron emission probabilities, relative r-process abundance pattern for the neutron-star merger scenario. RIKEN Nishina Center, the Advanced Implantation Detector Array (AIDA) and the BRIKEN neutron detector array.

doi: 10.3847/1538-4357/ac80fc
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2022KO06      Phys.Lett. B 827, 136953 (2022)

T.Koiwai, K.Wimmer, P.Doornenbal, A.Obertelli, C.Barbieri, T.Duguet, J.D.Holt, T.Miyagi, P.Navratil, K.Ogata, N.Shimizu, V.Soma, Y.Utsuno, K.Yoshida, N.L.Achouri, H.Baba, F.Browne, D.Calvet, F.Chateau, S.Chen, N.Chiga, A.Corsi, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, H.N.Liu, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Yoneda, O.Aktas, T.Aumann, L.X.Chung, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, D.Kim, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, B.D.Linh, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, P.-A.Soderstrom, D.Sohler, S.Takeuchi, H.Toernqvist, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

A first glimpse at the shell structure beyond 54Ca: Spectroscopy of 55K, 55Ca, and 57Ca

NUCLEAR REACTIONS 1H(56Ca, 2p)55K, (56Ca, np)55Ca, E=250 MeV/nucleon; 1H(58Sc, 2p)57Ca, E not given, [secondary 56Ca and 58Sc beams from 9Be(70Zn, X), E=345 MeV/nucleon, followed by selection of fragments of interest using the BigRIPS separator through the TOF-ΔE-Bρ method at RIBF-RIKEN facility]; measured reaction products using the by SAMURAI magnetic spectrometer, protons, Eγ, Iγ, (proton)γ-coin using thick liquid hydrogen target system MINOS and DALI22 array of 226 NaI(Tl) scintillator detectors. 55K, 55,57Ca; deduced levels, J, π, level half-lives, exclusive population σ, spectroscopic factors, short-lived state in 57Ca. Comparison with state-of-the-art theoretical calculations using different approaches such as large-scale shell model (LSSM), valence-space in-medium similarity renormalization group (VS-IMSRG), full-space self-consistent Green's function (SCGF) with NNLOsat and NN+3N(lnl) interactions.

doi: 10.1016/j.physletb.2022.136953
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2022LI20      Phys.Rev.Lett. 128, 152701 (2022)

H.F.Li, S.Naimi, T.M.Sprouse, M.R.Mumpower, Y.Abe, Y.Yamaguchi, D.Nagae, F.Suzaki, M.Wakasugi, H.Arakawa, W.B.Dou, D.Hamakawa, S.Hosoi, Y.Inada, D.Kajiki, T.Kobayashi, M.Sakaue, Y.Yokoda, T.Yamaguchi, R.Kagesawa, D.Kamioka, T.Moriguchi, M.Mukai, A.Ozawa, S.Ota, N.Kitamura, S.Masuoka, S.Michimasa, H.Baba, N.Fukuda, Y.Shimizu, H.Suzuki, H.Takeda, D.S.Ahn, M.Wang, C.Y.Fu, Q.Wang, S.Suzuki, Z.Ge, Y.A.Litvinov, G.Lorusso, P.M.Walker, Z.Podolyak, T.Uesaka

First Application of Mass Measurements with the Rare-RI Ring Reveals the Solar r-Process Abundance Trend at A=122 and A=123

ATOMIC MASSES 123Pd, 125Cd, 126In; measured frequencies; deduced mass excess values with low uncertainties. Comparison with calculations. Radioactive Isotope Beam Factory (RIBF) in RIKEN.

doi: 10.1103/PhysRevLett.128.152701
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2022MO11      Phys.Rev. C 105, 034334 (2022)

B.Moon, A.Gargano, H.Naidja, C.-B.Moon, A.Odahara, R.Lozeva, S.Nishimura, C.Yuan, F.Browne, P.Doornenbal, G.Lorusso, Z.Patel, S.Rice, M.Si, L.Sinclair, P.-A.Soderstrom, T.Sumikama, H.Watanabe, J.Wu, Z.Y.Xu, A.Yagi, D.S.Ahn, H.Baba, F.L.Bello Garrote, R.Daido, J.M.Daugas, F.Didierjean, Y.Fang, N.Fukuda, B.Hong, E.Ideguchi, N.Inabe, T.Ishigaki, T.Isobe, H.S.Jung, D.Kameda, I.Kojouharov, T.Komatsubara, T.Kubo, Y.K.Kwon, C.S.Lee, P.Lee, S.Morimoto, D.Murai, M.Niikura, H.Nishibata, I.Nishizuka, H.Sakurai, Y.Shimizu, H.Suzuki, H.Takeda, K.Tshoo, R.Yokoyama

First observation of the π0h11/2 (X) ν0h9/2 partner orbital configuration in the odd-odd 138I nucleus

RADIOACTIVITY 138Te(β-)[from 9Be(238U, X), E=345 MeV/nucleon];measured Eβ, Iβ, Eγ, Iγ, βγ-coin, γγ-coin; deduced β-branching ratios, logft, B(GT). 138I; deduced levels, J, π, configurations, T1/2 of 68 keV transition (not yet exact placement in the level scheme). Comparison to otherexperimental data and large-scale shell-model calculations with N3LOP and Napoli effective interactions. Wide-range Active Silicon Strip Stopper Array for β and ion detection (WAS3ABi) system combined with EUROBALL-RIKEN Cluster Array (EURICA) at RIBF.

doi: 10.1103/PhysRevC.105.034334
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2022PH01      Phys.Rev.Lett. 129, 172701 (2022)

V.H.Phong, S.Nishimura, G.Lorusso, T.Davinson, A.Estrade, O.Hall, T.Kawano, J.Liu, F.Montes, N.Nishimura, R.Grzywacz, K.P.Rykaczewski, J.Agramunt, D.S.Ahn, A.Algora, J.M.Allmond, H.Baba, S.Bae, N.T.Brewer, C.G.Bruno, R.Caballero-Folch, F.Calvino, P.J.Coleman-Smith, G.Cortes, I.Dillmann, C.Domingo-Pardo, A.Fijalkowska, N.Fukuda, S.Go, C.J.Griffin, J.Ha, L.J.Harkness-Brennan, T.Isobe, D.Kahl, L.H.Khiem, G.G.Kiss, A.Korgul, S.Kubono, M.Labiche, I.Lazarus, J.Liang, Z.Liu, K.Matsui, K.Miernik, B.Moon, A.I.Morales, P.Morrall, N.Nepal, R.D.Page, M.Piersa-Silkowska, V.F.E.Pucknell, B.C.Rasco, B.Rubio, H.Sakurai, Y.Shimizu, D.W.Stracener, T.Sumikama, H.Suzuki, J.L.Tain, H.Takeda, A.Tarifeno-Saldivia, A.Tolosa-Delgado

β-Delayed One and Two Neutron Emission Probabilities Southeast of 132Sn and the Odd-Even Systematics in r-Process Nuclide Abundances

NUCLEAR REACTIONS 9Be(238U, F)121Rh/122Rh/123Rh/124Rh/125Rh/123Pd/124Pd/125Pd/126Pd/127Pd/128Pd/126Ag/127Ag/128Ag/129Ag/130Ag/131Ag/129Cd/130Cd/131Cd/132Cd/133Cd/134Cd/131In/132In/133In/134In/135In/136In/134Sn/135Sn/136Sn/137Sn/138Sn/139Sn/138Sb/139Sb/140Sb/141Sb, E=345 MeV/nucleon; measured fission fragments using BigRIPS and ZeroDegree spectrometers at RIBF-RIKEN facility for separation of fragments by A/Q and Z through measurements of time-of-flight (TOF), magnetic rigidity (Bρ) and energy loss (ΔE); deduced A/Q versus Z particle identification plots.

RADIOACTIVITY 129,130,131Ag, 130,131,132,133Cd, 134Cd, 131,132,133,134,135,136In, 134,135,136,137,138,139Sn(β-), (β-n), (β-2n)[from 9Be(238U, F), E=345 MeV/nucleon]; measured implanted ions, neutrons, β, γ, (implants)β-, (implants)β(1n)- and (implants)β(2n)-correlations, T1/2 of decays of ground states using BRIKEN neutron counter with 140 3He-filled proportional counters, AIDA array of DSSSDs for implants and β decays, two Clover HPGe detectors for γ radiation, and two thick plastic scintillators; deduced T1/2, %β-n or Pn, %β-2n or P2n from simultaneous fits of β-, β-1n and β-2n-decay curves. Comparison with previous experimental results, and with theoretical predictions from quasiparticle random-phase approximation (QRPA), based on finite range droplet model (FRDM) and the relativistic Hartree-Bogoliubov (RHB) plus proton-neutron QRPA (pnQRPA).

doi: 10.1103/PhysRevLett.129.172701
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2022ST07      Eur.Phys.J. A 58, 223 (2022)

A.I.Stefanescu, V.Panin, L.Trache, T.Motobayashi, H.Otsu, A.Saastamoinen, T.Uesaka, L.Stuhl, J.Tanaka, D.Tudor, I.C.Stefanescu, A.E.Spiridon, K.Yoneda, H.Baba, M.Kurokawa, Y.Togano, Z.Halasz, M.Sasano, S.Ota, Y.Kubota, D.S.Ahn, T.Kobayashi, Z.Elekes, N.Fukuda, H.Takeda, D.Kim, E.Takada, H.Suzuki, K.Yoshida, Y.Shimizu, H.N.Liu, Y.L.Sun, T.Isobe, J.Gibelin, P.J.Li, J.Zenihiro, F.M.Marques, M.N.Harakeh, G.G.Kiss, A.Kurihara, M.Yasuda, T.Nakamura, S.Park, Z.Yang, T.Harada, M.Nishimura, H.Sato, I.S.Hahn, K.Y.Chae, J.M.Elson, L.G.Sobotka, C.A.Bertulani

Silicon tracker array for RIB experiments at SAMURAI

doi: 10.1140/epja/s10050-022-00873-w
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2022VI03      Phys.Lett. B 830, 137123 (2022)

A.Vitez-Sveiczer, A.Algora, A.I.Morales, B.Rubio, G.G.Kiss, P.Sarriguren, P.Van Isacker, G.de Angelis, F.Recchia, S.Nishimura, J.Agramunt, V.Guadilla, A.Montaner-Piza, S.E.A.Orrigo, A.Horvath, D.Napoli, S.Lenzi, A.Boso, V.H.Phong, J.Wu, P.-A.Soderstrom, T.Sumikama, H.Suzuki, H.Takeda, D.S.Ahn, H.Baba, P.Doornebal, N.Fukuda, N.Inabe, T.Isobe, T.Kubo, S.Kubono, H.Sakurai, Y.Shimizu, C.Sidong, B.Blank, P.Ascher, M.Gerbaux, T.Goigoux, J.Giovinazzo, S.Grevy, T.Kurtukian Nieto, C.Magron, W.Gelletly, Zs.Dombradi, Y.Fujita, M.Tanaka, P.Aguilera, F.Molina, J.Eberth, F.Diel, D.Lubos, C.Borcea, E.Ganioglu, D.Nishimura, H.Oikawa, Y.Takei, S.Yagi, W.Korten, G.de France, P.Davies, J.Liu, J.Lee, T.Lokotko, I.Kojouharov, N.Kurz, H.Shaffner, A.Petrovici

The β-decay of 70Kr into 70Br: Restoration of the pseudo-SU(4) symmetry

RADIOACTIVITY 70Kr(EC), (β+p) [from 9Be(78Kr, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced γ-ray energies, partial level scheme, T1/2, log ft, B(GT), β-delayed proton emission probability, an approximate realization of pseudo-SU(4) symmetry in the system. Comparison with the proton-neutron quasiparticle random-phase approximation (pnQRPA) calculations. The Radioactive Ion Beam Factory (RIBF) of the RIKEN Nishina Center using the BigRIPS fragment separator, the ZeroDegree Spectrometer, the WAS3ABI implantation station and the EURICA HPGe cluster array.

doi: 10.1016/j.physletb.2022.137123
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2022YA13      Phys.Rev. C 105, 044325 (2022)

A.Yagi, A.Odahara, H.Nishibata, R.Lozeva, C.-B.Moon, S.Nishimura, K.Yoshida, N.Yoshinaga, C.Watanabe, K.Higashiyama, T.Shimoda, R.Daido, Y.Fang, P.S.Lee, B.Moon, P.Doornenbal, G.Lorusso, P.-A.Soderstrom, T.Sumikama, H.Watanabe, T.Isobe, H.Baba, H.Sakurai, F.Browne, Z.Patel, S.Rice, L.Sinclair, J.Wu, Z.Y.Xu, R.Yokoyama, T.Kubo, N.Inabe, H.Suzuki, N.Fukuda, D.Kameda, H.Takeda, D.S.Ahn, Y.Shimizu, D.Murai, F.L.Bello Garrote, J.-M.Daugas, F.Didierjean, E.Ideguchi, S.Iimura, T.Ishigaki, H.S.Jung, T.Komatsubara, Y.K.Kwon, C.S.Lee, S.Morimoto, M.Niikura, I.Nishizuka, K.Tshoo

Various nuclear structures in 140Xe studied by β decay of ground and isomeric states in 140I

RADIOACTIVITY 140,140mI, 140Te(β-)[from 9Be(238U, X), E=345 MeV/nucleon];measured Eβ, Iβ, Eγ, Iγ, βγ-coin, γγ-coin; deduced β-branching ratios, β-intensities. 140Te; deduced T1/2. 140I; deduced levels, J, π, T1/2 of ground and two newly found β-decaying isomeric states. 140Xe; deduced levels, J, π, band structures. Systematics of excitation energies of octupole collective states and positive-parity states in N = 86 isotones. Comparison to large-scale shell model and deformed Skyrme-HFB+QRPA (SkM*) calculations. Wide-range Active Silicon Strip Stopper Array for β and ion detection (WAS3ABi) system combined with EUROBALL-RIKEN Cluster Array (EURICA) at RIBF.

doi: 10.1103/PhysRevC.105.044325
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2021BA28      Phys.Rev. C 103, 064318 (2021)

D.Bazin, N.Aoi, H.Baba, J.Chen, H.Crawford, P.Doornenbal, P.Fallon, K.Li, J.Lee, M.Matsushita, T.Motobayashi, H.Sakurai, H.Scheit, D.Steppenbeck, R.Stroberg, S.Takeuchi, H.Wang, K.Yoneda, C.X.Yuan

Spectroscopy of 33Mg with knockout reactions

NUCLEAR REACTIONS 9Be(34Mg, n)33Mg, E=242.5 MeV/nucleon; 9Be(34Al, p)33Mg, E=229.6 MeV/nucleon, [secondary 34Mg and 34Al beams from 9Be(48Ca, X), E=345 MeV/nucleon primary reaction, followed by separation of fragments of interest using BigRIPS spectrometer at RIBF-RIKEN facility]; measured reaction products and particle identification plot (PID), outgoing 33Mg particles by ZeroDegree spectrometer (ZDS), Eγ, Iγ, (33Mg)γ-coin, parallel momentum distributions using DALI2 array of NaI(Tl) scintillators. 33Mg; deduced levels, J, π, l-transfers, partial σ and compared with eikonal reaction theory, spectroscopic factors; calculated levels, J, π using large-scale shell model with IMSRG, SDPF-MU, SDPF-U-SI and SDPF-U-MIX interactions.

doi: 10.1103/PhysRevC.103.064318
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2021BR11      Phys.Rev.Lett. 126, 252501 (2021)

F.Browne, S.Chen, P.Doornenbal, A.Obertelli, K.Ogata, Y.Utsuno, K.Yoshida, N.L.Achouri, H.Baba, D.Calvet, F.Chateau, N.Chiga, A.Corsi, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, H.N.Liu, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, O.Aktas, T.Aumann, K.Boretzky, C.Caesar, L.X.Chung, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, M.Holl, J.Kahlbow, D.Kim, D.Korper, T.Koiwai, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, B.D.Linh, T.Lokotko, M.MacCormick, K.Miki, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, F.Schindler, H.Simon, P.-A.Soderstrom, D.Sohler, S.Takeuchi, H.Tornqvist, J.Tscheuschner, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

Pairing Forces Govern Population of Doubly Magic 54Ca from Direct Reactions

NUCLEAR REACTIONS 1H(55Sc, 2p), E<345 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, partial σ. Comparison with distorted-wave impulse approximation estimates multiplied by the shell model spectroscopic factors. RIKEN RadioactiveIsotope Beam Factory.

doi: 10.1103/PhysRevLett.126.252501
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2021ES05      Phys.Rev. C 103, 064328 (2021)

S.Escrig, A.I.Morales, S.Nishimura, M.Niikura, A.Poves, Z.Y.Xu, G.Lorusso, F.Browne, P.Doornenbal, G.Gey, H.-S.Jung, Z.Li, P.-A.Soderstrom, T.Sumikama, J.Taprogge, Zs.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, H.Baba, S.Franchoo, T.Isobe, P.R.John, I.Kojouharov, S.Kubono, N.Kurz, I.Matea, K.Matsui, D.Mengoni, P.Morfouace, D.R.Napoli, F.Naqvi, H.Nishibata, A.Odahara, E.Sahin, H.Sakurai, H.Schaffner, I.G.Stefan, D.Suzuki, R.Taniuchi, V.Werner, D.Sohler

Persistence of the Z=28 shell gap in A=75 isobars: Identification of a possible (1/2-)μs isomer in 75Co and β decay to 75Ni

RADIOACTIVITY 75mCo(IT); 75Co(β-), (β-n)[from in-flight fission in 9Be(238U, F), E=345 MeV/nucleon, followed by separation of fragments of interest using BigRIPS separator and ZeroDegree spectrometer (ZDS) at RIBF-RIKEN facility]; measured Eγ, Iγ, βγ- and βγγ-coin, half-life of 75mCo decay by (ion)γ(t) using active beam stopper WAS3ABi with double-sided silicon strips detectors (DSSSDs) for fragment and β detection and EURICA array of 12 clusters HPGe detectors for γ rays. 74,75Ni; deduced levels, J, π, multipolarities of two transitions, configurations, β feedings, β-n feedings, logft values. 75Co; deduced lower limit of %β-n. 75mCo; deduced isomer, energy, J, π, transition multipolarity and half-life of the micro-sec isomer. Comparison with the large-scale shell-model calculations using PFSDG-U interaction in the pf-sdg space. Systematics of low-lying levels in 69,71,73,75Co.

doi: 10.1103/PhysRevC.103.064328
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2021HA19      Phys.Lett. B 816, 136266 (2021)

O.Hall, T.Davinson, A.Estrade, J.Liu, G.Lorusso, F.Montes, S.Nishimura, V.H.Phong, P.J.Woods, J.Agramunt, D.S.Ahn, A.Algora, J.M.Allmond, H.Baba, S.Bae, N.T.Brewer, C.G.Bruno, R.Caballero-Folch, F.Calvino, P.J.Coleman-Smith, G.Cortes, I.Dillmann, C.Domingo-Pardo, A.Fijalkowska, N.Fukuda, S.Go, C.J.Griffin, R.Grzywacz, J.Ha, L.J.Harkness-Brennan, T.Isobe, D.Kahl, L.H.Khiem, G.G.Kiss, A.Korgul, S.Kubono, M.Labiche, I.Lazarus, J.Liang, Z.Liu, K.Matsui, K.Miernik, B.Moon, A.I.Morales, P.Morrall, M.R.Mumpower, N.Nepal, R.D.Page, M.Piersa, V.F.E.Pucknell, B.C.Rasco, B.Rubio, K.P.Rykaczewski, H.Sakurai, Y.Shimizu, D.W.Stracener, T.Sumikama, H.Suzuki, J.L.Tain, H.Takeda, A.Tarifeno-Saldivia, A.Tolosa-Delgado, M.Wolinska-Cichocka, R.Yokoyama

β-delayed neutron emission of r-process nuclei at the N = 82 shell closure

RADIOACTIVITY 115,116Tc, 116,117,118,119,120,121Ru, 118,119,120,121,122,123,124Rh, 121,122,123,124,125,126,127,128Pd, 124,125,126,127,128,129Ag, 127,128,129,130Cd(β-n) [from 9Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eβ, Iβ, En, In; deduced β-delayed neutron emission probabilities, T1/2. RIKEN using the Advanced Implantation Detector Array (AIDA) and the BRIKEN neutron detector array.

doi: 10.1016/j.physletb.2021.136266
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2021HU28      Few-Body Systems 62, 102 (2021)

S.W.Huang, Z.H.Yang, F.M.Marques, N.L.Achouri, D.S.Ahn, T.Aumann, H.Baba, D.Beaumel, M.Bohmer, K.Boretzky, M.Caamano, S.Chen, N.Chiga, M.L.Cortes, D.Cortina, P.Doornenbal, C.A.Douma, F.Dufter, J.Feng, B.Fernandez-Dominguez, Z.Elekes, U.Forsberg, T.Fujino, N.Fukuda, I.Gasparic, Z.Ge, R.Gernhauser, J.M.Gheller, J.Gibelin, A.Gillibert, Z.Halasz, T.Harada, M.N.Harakeh, A.Hirayama, N.Inabe, T.Isobe, J.Kahlbow, N.Kalantar-Nayestanaki, D.Kim, S.Kim, S.Kiyotake, T.Kobayashi, Y.Kondo, P.Koseoglou, Y.Kubota, I.Kuti, C.Lehr, C.Lenain, P.J.Li, Y.Liu, Y.Maeda, S.Masuoka, M.Matsumoto, A.Matta, J.Mayer, H.Miki, M.Miwa, B.Monteagudo, I.Murray, T.Nakamura, A.Obertelli, N.A.Orr, H.Otsu, V.Panin, S.Park, M.Parlog, S.Paschalis, M.Potlog, S.Reichert, A.Revel, D.Rossi, A.Saito, M.Sasano, H.Sato, H.Scheit, F.Schindler, T.Shimada, Y.Shimizu, S.Shimoura, H.Simon, I.Stefan, S.Storck, L.Stuhl, H.Suzuki, D.Symochko, H.Takeda, S.Takeuchi, J.Tanaka, Y.Togano, T.Tomai, H.T.Tornqvist, E.Tronchin, J.Tscheuschner, T.Uesaka, V.Wagner, K.Wimmer, H.Yamada, B.Yang, L.Yang, Y.Yasuda, K.Yoneda, L.Zanetti, J.Zenihiro

Experimental Study of 4n by Directly Detecting the Decay Neutrons

RADIOACTIVITY 7H(t), 6He(2n) [from 1H(8He, 2p), E=150 MeV/nucleon]; measured decay products, En, In. 4NN; deduced relative-energy spectrum, neutron multiplicity distribution. The radioactive isotope beam factory (RIBF).

doi: 10.1007/s00601-021-01691-4
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2021JU02      Phys.Lett. B 814, 136108 (2021)

M.M.Juhasz, Z.Elekes, D.Sohler, Y.Utsuno, K.Yoshida, T.Otsuka, K.Ogata, P.Doornenbal, A.Obertelli, H.Baba, F.Browne, D.Calvet, F.Chateau, S.Chen, N.Chiga, A.Corsi, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, N.L.Achouri, O.Aktas, T.Aumann, L.X.Chung, Zs.Dombradi, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, D.Kim, T.Koiwai, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, B.D.Linh, H.N.Liu, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, P.-A.Soderstrom, S.Takeuchi, H.Tornqvist, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

First spectroscopic study of 51Ar by the (p, 2p) reaction

NUCLEAR REACTIONS 1H(51Ar, 2p), (52K, 2p), E ∼ 260 MeV/nucleon; measured reaction products, Eγ, Iγ. 51Ar, 52K; deduced γ-ray energies and intensities, resonance parameters, σ, spectroscopic factors, partial level schemes, J, π. Comparison with shell model calculations, the Radioactive Isotope Beam Factory operated by the RIKEN Nishina Center and the Center for Nuclear Study of the University of Tokyo.

doi: 10.1016/j.physletb.2021.136108
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2021JU04      Phys.Rev. C 103, 064308 (2021)

M.M.Juhasz, Z.Elekes, D.Sohler, K.Sieja, K.Yoshida, K.Ogata, P.Doornenbal, A.Obertelli, H.Baba, F.Browne, D.Calvet, F.Chateau, S.Chen, N.Chiga, A.Corsi, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, N.L.Achouri, O.Aktas, T.Aumann, L.X.Chung, Zs.Dombradi, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, D.Kim, T.Koiwai, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, B.D.Linh, H.N.Liu, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, P.-A.Soderstrom, S.Takeuchi, H.Tornqvist, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

First spectroscopic study of 63V at the N=40 island of inversion

NUCLEAR REACTIONS 1H(63V, p), (64Cr, 2p), E=250 MeV/nucleon, [secondary 63V and 64Cr beams from 9Be(70Zn, X), E=325 MeV/nucleon primary reaction, followed by separation of fragments of interest using BigRIPS spectrometer at RIBF-RIKEN facility, incident on MINOS hydrogen target]; measured beam-like fragments using SAMURAI magnetic spectrometer, Eγ, Iγ, (fragment)γ-coin using DALI2+ array of 226 NaI(Tl) scintillation detectors. 63V; deduced levels, J, π, shell-model calculations using Lenzi-Nowacki-Poves-Sieja interaction; analyzed (p, p') excitation cross sections by the coupled channel formalism assuming pure quadrupole as well as quadrupole + hexadecapole deformations. First study of excited states in the 63V nucleus, with its relevance to 'island of inversion' located below 68Ni.

doi: 10.1103/PhysRevC.103.064308
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2021KA39      Phys.Lett. B 822, 136681 (2021)

M.Kaneko, T.Murakami, T.Isobe, M.Kurata-Nishimura, A.Ono, N.Ikeno, J.Barney, G.Cerizza, J.Estee, G.Jhang, J.W.Lee, W.G.Lynch, C.Santamaria, C.Y.Tsang, M.B.Tsang, R.Wang, D.S.Ahn, L.Atar, T.Aumann, H.Baba, K.Boretzky, J.Brzychczyk, N.Chiga, N.Fukuda, I.Gasparic, B.Hong, A.Horvat, T.Ichihara, K.Ieki, N.Inabe, Y.J.Kim, T.Kobayashi, Y.Kondo, P.Lasko, H.S.Lee, Y.Leifels, J.Lukasik, J.Manfredi, A.B.McIntosh, P.Morfouace, T.Nakamura, N.Nakatsuka, S.Nishimura, R.Olsen, H.Otsu, P.Pawlowski, K.Pelczar, D.Rossi, H.Sakurai, H.Sato, H.Scheit, R.Shane, Y.Shimizu, H.Simon, T.Sumikama, D.Suzuki, H.Suzuki, H.Takeda, S.Tangwancharoen, Y.Togano, H.Tornqvist, Z.Xiao, S.J.Yennello, J.Yurkon, Y.Zhang

Rapidity distributions of Z=1 isotopes and the nuclear symmetry energy from Sn+Sn collisions with radioactive beams at 270 MeV/nucleon

NUCLEAR REACTIONS 124Sn(132Sn, X), 112Sn(108Sn, X), E=270 MeV/nucleon; measured reaction products. 1,2,3H; deduced rapidity distributions of hydrogen isotopes emitted from central collisions. Comparison with antisymmetrized molecular dynamics (AMD) calculations. RIKEN-RIBF facility.

doi: 10.1016/j.physletb.2021.136681
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2021KU30      Phys.Rev. C 104, 064610 (2021)

A.Kubiela, H.Suzuki, O.B.Tarasov, M.Pfutzner, D.-S.Ahn, H.Baba, A.Bezbakh, A.A.Ciemny, W.Dominik, N.Fukuda, A.Giska, R.Grzywacz, Y.Ichikawa, Z.Janas, L.Janiak, G.Kaminski, K.Kawata, T.Kubo, M.Madurga, C.Mazzocchi, H.Nishibata, M.Pomorski, Y.Shimizu, N.Sokolowska, D.Suzuki, P.Szymkiewicz, A.Swiercz, M.Tajima, A.Takamine, H.Takeda, Y.Takeuchi, C.R.Thornsberry, H.Ueno, H.Yamazaki, R.Yokoyama, K.Yoshida

Production of the most neutron-deficient Zn isotopes by projectile fragmentation of 78Kr

NUCLEAR REACTIONS 9Be(78Kr, X)54Zn/55Zn/56Zn, E=345 MeV/nucleon; measured reaction products, production σ using BigRIPS separator at the RIBF-RIKEN facility. Comparison of measured σ for Zn isotopes in this work, and for germanium, selenium, and krypton isotopes in other studies with predictions of the EPAX3 parametrization, LISE++ abrasion-ablation model using the HFB22 mass model and the AME2020 mass tables. Relevance to production of nuclei decaying by 2p radioactivity such as 54Zn.

doi: 10.1103/PhysRevC.104.064610
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2021LI58      Phys.Rev. C 104, 044331 (2021)

B.D.Linh, A.Corsi, A.Gillibert, A.Obertelli, P.Doornenbal, C.Barbieri, S.Chen, L.X.Chung, T.Duguet, M.Gomez-Ramos, J.D.Holt, A.Moro, P.Navratil, K.Ogata, N.T.T.Phuc, N.Shimizu, V.Soma, Y.Utsuno, N.L.Achouri, H.Baba, F.Browne, D.Calvet, F.Chateau, N.Chiga, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, H.N.Liu, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, O.Aktas, T.Aumann, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, N.T.Khai, D.Kim, T.Koiwai, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, D.Sohler, P.-A.Soderstrom, S.Takeuchi, N.D.Ton, H.Tornqvist, V.Vaquero, V.Wagner, H.Wang, V.Werner, X.Xu, Y.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

Investigation of the ground-state spin inversion in the neutron-rich 47, 49Cl isotopes

NUCLEAR REACTIONS 1H(50Ar, 2p)49Cl, (50Ar, 2n2p)47Cl; 1H(52K, n3p)49Cl; 1H(48Cl, np)47Cl, [secondary ion beams from 9Be(70Zn, X), E=345 MeV/nucleon primary reaction at RIBF-RIKEN facility, followed by separation of ions by BigRIPS separator using Bπ-ΔE-TOF measurement and MINOS hydrogen target system]; measured reaction products, A/Q versus Z plot, scattered ions of 47Cl and 49Cl using the SAMURAI spectrometer and identified by A/Q and Z, Eγ, Iγ, γγ-coin using DALI2+ array of 226 NaI(Tl) detectors. 47,49Cl; deduced levels, J and π for 49Cl, parallel and transverse momentum distributions and L-transfers for 49Cl, inclusive cross sections. Comparison of experimental level structure with shell-model calculations using SDPF-MU interactions, and IMSRG calculation. Comparison of momentum distributions with distorted-wave impulse approximation (DWIA), and transfer to continuum (TC) methods. Comparison of inclusive cross sections with LISE++ theoretical calculations. 49Cl; calculated levels, J, π, T1/2 of levels, B(E2), B(M1) using SDFP-MU shell-model. 45,47,49Cl; calculated levels, J, π, spectroscopic factors using shell-model and ab initio approaches. 41,43,45,47Cl; spin inversion issue not settled. Comparison of experimental and theoretical (from CGF) energy difference between the first 1/2+ and 3/2+ states in 35,36,37,38,39,40,41,43,45,47,49,51,53Cl, 37,38,39,40,41,43,45,47,49,51,53,55K.

doi: 10.1103/PhysRevC.104.044331
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2021MO10      Phys.Rev. C 103, 034320 (2021)

B.Moon, A.Jungclaus, H.Naidja, A.Gargano, R.Lozeva, C.-B.Moon, A.Odahara, G.S.Simpson, S.Nishimura, F.Browne, P.Doornenbal, G.Gey, J.Keatings, G.Lorusso, Z.Patel, S.Rice, M.Si, L.Sinclair, P.-A.Soderstrom, T.Sumikama, J.Taprogge, H.Watanabe, J.Wu, Z.Y.Xu, A.Yagi, D.S.Ahn, H.Baba, F.L.Bello Garrote, S.Bonig, R.Daido, J.M.Daugas, F.Didierjean, F.Drouet, Y.Fang, N.Fukuda, R.Gernhauser, B.Hong, E.Ideguchi, S.Ilieva, N.Inabe, T.Ishigaki, T.Isobe, H.S.Jung, D.Kameda, I.Kojouharov, T.Komatsubara, T.Kroll, T.Kubo, N.Kurz, Y.K.Kwon, C.S.Lee, P.Lee, Z.Li, A.Montaner-Piza, S.Morimoto, K.Moschner, D.Mucher, D.Murai, M.Niikura, H.Nishibata, I.Nishizuka, R.Orlandi, H.Sakurai, H.Schaffner, Y.Shimizu, K.Steiger, H.Suzuki, H.Takeda, K.Tshoo, Zs.Vajta, A.Wendt, R.Yokoyama, K.Yoshinaga

Nuclear structure of Te isotopes beyond neutron magic number N = 82

RADIOACTIVITY 137,138Sb(β-), (β-n), (β-2n)[from 9Be(238U, F), E=345 MeV/nucleon, followed by separation of fragments using BigRIPS and Zero-Degree spectrometer at RIBF-RIKEN facility]; measured yields of 137Sb 138Sb, Eγ, Iγ, γγ-coin, half-lives of decays of ground states of 137Sb and 138Sb using WAS3ABi detection system and EURICA array for γ rays. 135,136,137,138Te; deduced levels, J, π, β-, β-n and β-2n feedings, logft values. Systematics of energies of excited states in the Z=52-64(even) and N=85 isotones. Comparison with large-scale shell-model calculations.

NUCLEAR STRUCTURE 137,138Te; calculated levels, J, π, one-neutron spectroscopic factors for 137Te, B(E2), spectroscopic quadrupole moments and g factors for levels in 138Te using large-scale shell-model, with Napoli and N3LOP interactions. Comparison with experimental data.

doi: 10.1103/PhysRevC.103.034320
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2021SU01      Phys.Rev. C 103, 014614 (2021)

T.Sumikama, N.Fukuda, N.Inabe, D.Kameda, T.Kubo, Y.Shimizu, H.Suzuki, H.Takeda, K.Yoshida, H.Baba, F.Browne, A.M.Bruce, R.Carroll, N.Chiga, R.Daido, F.Didierjean, P.Doornenbal, Y.Fang, G.Gey, E.Ideguchi, T.Isobe, S.Lalkovski, Z.Li, G.Lorusso, R.Lozeva, H.Nishibata, S.Nishimura, I.Nishizuka, A.Odahara, Z.Patel, Zs.Podolyak, P.H.Regan, S.Rice, O.J.Roberts, H.Sakurai, G.S.Simpson, L.Sinclair, P.-A.Soderstrom, M.Tanaka, J.Taprogge, H.Watanabe, V.Werner, O.Wieland, J.Wu, Z.Y.Xu, A.Yagi

Observation of new neutron-rich isotopes in the vicinity of 110Zr

NUCLEAR REACTIONS 9Be(238U, F)98Br/99Br/101Br/99Kr/100Kr/101Kr/102Kr/100Rb/101Rb/102Rb/103Rb/104Rb/105Rb/106Rb/101Sr/102Sr/103Sr/104Sr/105Sr/106Sr/107Sr/108Sr/103Y/104Y/105Y/106Y/107Y/108Y/109Y/110Y/111Y/105Zr/106Zr/107Zr/108Zr/109Zr/110Zr/111Zr/112Zr/113Zr/114Zr/108Nb/109Nb/110Nb/111Nb/112Nb/113Nb/114Nb/115Nb/116Nb/117Nb/111Mo/112Mo/113Mo/114Mo/115Mo/116Mo/117Mo/118Mo/119Mo/114Tc/115Tc/116Tc/117Tc/118Tc/119Tc/120Tc/121Tc/117Ru/118Ru/119Ru/120Ru/121Ru/122Ru/120Rh/121Rh/122Rh/123Rh, E=345 MeV/nucleon; measured reaction products and production yields and σ, with particle-identifications through energy loss, time of flight, and magnetic rigidities using BigRIPS separator and ZeroDegree spectrometer at RIBF-RIKEN facility. Comparison with theoretical calculations using LISE++ code. 101Br, 102Kr, 105Rb, 106Rb, 108Sr, 110,111Y, 114Zr, 117Nb; identified new neutron-rich. 99,100Br; no evidence found for production.

doi: 10.1103/PhysRevC.103.014614
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2021WA49      Phys.Lett. B 823, 136766 (2021)

H.Watanabe, C.X.Yuan, G.Lorusso, S.Nishimura, Z.Y.Xu, T.Sumikama, P.-A.Soderstrom, P.Doornenbal, F.Browne, G.Gey, H.S.Jung, J.Taprogge, Zs.Vajta, H.K.Wang, J.Wu, A.Yagi, H.Baba, G.Benzoni, K.Y.Chae, F.C.L.Crespi, N.Fukuda, R.Gernhauser, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, G.J.Lane, Z.Li, C.-B.Moon, A.Montaner-Piza, K.Moschner, F.Naqvi, M.Niikura, H.Nishibata, D.Nishimura, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, H.Suzuki, H.Takeda, A.Wendt, K.Yoshinaga

Impact of shell evolution on Gamow-Teller β decay from a high-spin long-lived isomer in 127Ag

RADIOACTIVITY 127Cd(EC), 127Ag(IT) [from 9Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ, Eβ, Iβ, γ-γ-coin.; deduced γ -ray energies and intensities, J, π, B(GT), isomeric T1/2. Comparison with shell model calculations.

doi: 10.1016/j.physletb.2021.136766
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2021WI01      Phys.Rev.Lett. 126, 072501 (2021)

K.Wimmer, W.Korten, P.Doornenbal, T.Arici, P.Aguilera, A.Algora, T.Ando, H.Baba, B.Blank, A.Boso, S.Chen, A.Corsi, P.Davies, G.de Angelis, G.de France, J.-P.Delaroche, D.T.Doherty, J.Gerl, R.Gernhauser, M.Girod, D.Jenkins, S.Koyama, T.Motobayashi, S.Nagamine, M.Niikura, A.Obertelli, J.Libert, D.Lubos, T.R.Rodriguez, B.Rubio, E.Sahin, T.Y.Saito, H.Sakurai, L.Sinclair, D.Steppenbeck, R.Taniuchi, R.Wadsworth, M.Zielinska

Shape Changes in the Mirror Nuclei 70Kr and 70Se

NUCLEAR REACTIONS 197Au, 209Bi(70Kr, 70Kr'), (70Br, 70Br'), (70Se, 70Se'), E=140 MeV/nucleon; measured reaction products, Eγ, Iγ. 70Kr, 70Br, 70Se; deduced γ-ray energies, σ, nuclear deformation lengths, B(E2) values. Comparison with available data.

doi: 10.1103/PhysRevLett.126.072501
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2021WI05      Phys.Rev. C 104, 014304 (2021)

K.Wimmer, F.Recchia, S.M.Lenzi, S.Riccetto, T.Davinson, A.Estrade, C.J.Griffin, S.Nishimura, V.Phong, P.-A.Soderstrom, O.Aktas, M.Al-Aqeel, T.Ando, H.Baba, S.Bae, S.Choi, P.Doornenbal, J.Ha, L.Harkness-Brennan, T.Isobe, P.R.John, D.Kahl, G.Kiss, I.Kojouharov, N.Kurz, M.Labiche, K.Matsui, S.Momiyama, D.R.Napoli, M.Niikura, C.Nita, Y.Saito, H.Sakurai, H.Schaffner, P.Schrock, C.Stahl, T.Sumikama, V.Werner, W.Witt, P.J.Woods

Isomeric states in neutron-rich nuclei near N=40

NUCLEAR REACTIONS 9Be(238U, X)58Sc/60V/64V, E=345 MeV/nucleon, followed by separation of fragments of interest using BigRIPS separator and ZeroDegree spectrometer at RIBF-RIKEN facility; measured Eγ, Iγ, γγ-coin, delayed γ spectra, half-lives of nanosecond and microsec isomers using HPGe EUroball RIKEN Cluster Array (EURICA). 58Sc, 60,64V; deduced levels, new isomers, B(E2), B(M2); discussed possible spin-parity assignments for the isomers. Comparison with previous experimental data, and with shell-model predictions.

doi: 10.1103/PhysRevC.104.014304
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2021YA07      Phys.Rev.Lett. 126, 082501 (2021)

Z.H.Yang, Y.Kubota, A.Corsi, K.Yoshida, X.-X.Sun, J.G.Li, M.Kimura, N.Michel, K.Ogata, C.X.Yuan, Q.Yuan, G.Authelet, H.Baba, C.Caesar, D.Calvet, A.Delbart, M.Dozono, J.Feng, F.Flavigny, J.-M.Gheller, J.Gibelin, A.Giganon, A.Gillibert, K.Hasegawa, T.Isobe, Y.Kanaya, S.Kawakami, D.Kim, Y.Kiyokawa, M.Kobayashi, N.Kobayashi, T.Kobayashi, Y.Kondo, Z.Korkulu, S.Koyama, V.Lapoux, Y.Maeda, F.M.Marques, T.Motobayashi, T.Miyazaki, T.Nakamura, N.Nakatsuka, Y.Nishio, A.Obertelli, A.Ohkura, N.A.Orr, S.Ota, H.Otsu, T.Ozaki, V.Panin, S.Paschalis, E.C.Pollacco, S.Reichert, J.-Y.Rousse, A.T.Saito, S.Sakaguchi, M.Sako, C.Santamaria, M.Sasano, H.Sato, M.Shikata, Y.Shimizu, Y.Shindo, L.Stuhl, T.Sumikama, Y.L.Sun, M.Tabata, Y.Togano, J.Tsubota, F.R.Xu, J.Yasuda, K.Yoneda, J.Zenihiro, S.-G.Zhou, W.Zuo, T.Uesaka

Quasifree Neutron Knockout Reaction Reveals a Small s-Orbital Component in the Borromean Nucleus 17B

NUCLEAR REACTIONS 1H(17B, np)16B, E ∼ 277 MeV/nucleon; measured reaction products, Eγ, Iγ. 17B; deduced energy levels, partial σ and spectroscopic parameters, resonance widths. Comparison with GSM, VS-IMSRG, AMD, SM calculations. MINOS target, RIKEN Nishina Center.

doi: 10.1103/PhysRevLett.126.082501
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2021YO08      Phys.Rev. C 104, L021303 (2021)

R.Yokoyama, E.Ideguchi, G.S.Simpson, M.Tanaka, Y.Sun, C.-J.Lv, Y.-X.Liu, L.-J.Wang, S.Nishimura, P.Doornenbal, G.Lorusso, P.-A.Soderstrom, T.Sumikama, J.Wu, Z.Y.Xu, N.Aoi, H.Baba, F.L.Bello Garrote, G.Benzoni, F.Browne, R.Daido, Y.Fang, N.Fukuda, A.Gottardo, G.Gey, S.Go, S.Inabe, T.Isobe, D.Kameda, K.Kobayashi, M.Kobayashi, I.Kojouharov, T.Komatsubara, T.Kubo, N.Kurz, I.Kuti, Z.Li, M.Matsushita, S.Michimasa, C.B.Moon, H.Nishibata, I.Nishizuka, A.Odahara, Z.Patel, S.Rice, E.Sahin, H.Sakurai, H.Schaffner, L.Sinclair, H.Suzuki, H.Takeda, J.Taprogge, Zs.Vajta, H.Watanabe, A.Yagi

Three-quasiparticle isomers in odd-even 159, 161Pm: Calling for modified spin-orbit interaction for the neutron-rich region

RADIOACTIVITY 159,161Pm(IT)[from 9Be(238U, F), E=345 MeV/nucleon, followed by separation of fission fragments using the BigRIPS in-flight separator and implantation of fragments in WAS3ABi setup at RIBF-RIKEN facility]; measured Eγ, Iγ, γγ-coin, half-lives of the isomers by γ(t) using the EURICA array of 12 EUROBALL clusters. 159,161Pm; deduced high-spin levels, J, π, bands, 2-quasiparticle Nilsson configurations for the isomeric states, and 3-quasiparticle configurations from theory, existence of the deformed N=98 subshell gap in odd-mass nuclei. Comparison with projected shell model (PSM) calculations. Discussed modification of strength of spin-orbit interactions in standard Nilsson parameters for neutron-rich rare-earth nuclei around A=165.

doi: 10.1103/PhysRevC.104.L021303
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2020BA27      Phys.Rev.Lett. 124, 222504 (2020)

S.Bagchi, R.Kanungo, Y.K.Tanaka, H.Geissel, P.Doornenbal, W.Horiuchi, G.Hagen, T.Suzuki, N.Tsunoda, D.S.Ahn, H.Baba, K.Behr, F.Browne, S.Chen, M.L.Cortes, A.Estrade, N.Fukuda, M.Holl, K.Itahashi, N.Iwasa, G.R.Jansen, W.G.Jiang, S.Kaur, A.O.Macchiavelli, S.Y.Matsumoto, S.S.Momiyama, I.Murray, T.Nakamura, S.J.Novario, H.J.Ong, T.Otsuka, T.Papenbrock, S.Paschalis, A.Prochazka, C.Scheidenberger, P.Schrock, Y.Shimizu, D.Steppenbeck, H.Sakurai, D.Suzuki, H.Suzuki, M.Takechi, H.Takeda, S.Takeuchi, R.Taniuchi, K.Wimmer, K.Yoshida

Two-Neutron Halo is Unveiled in 29F

NUCLEAR REACTIONS C(29F, X), E=255 MeV/nucleon; C(27F, X), E=250 MeV/nucleon; measured reaction products, En, In. 27,29F; deduced two-neutron Borromean halo. Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.124.222504
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2020BE24      Phys.Rev. C 102, 034314 (2020)

F.L.Bello Garrote, E.Sahin, Y.Tsunoda, T.Otsuka, A.Gorgen, M.Niikura, S.Nishimura, G.de Angelis, G.Benzoni, A.I.Morales, V.Modamio, Z.Y.Xu, H.Baba, F.Browne, A.M.Bruce, S.Ceruti, F.C.L.Crespi, R.Daido, M.-C.Delattre, P.Doornenbal, Zs.Dombradi, Y.Fang, S.Franchoo, G.Gey, A.Gottardo, K.Hadynska-Klek, T.Isobe, P.R.John, H.S.Jung, I.Kojouharov, T.Kubo, N.Kurz, I.Kuti, Z.Li, G.Lorusso, I.Matea, K.Matsui, D.Mengoni, T.Miyazaki, S.Momiyama, P.Morfouace, D.R.Napoli, F.Naqvi, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, S.Rice, H.Sakurai, H.Schaffner, L.Sinclair, P.-A.Soderstrom, D.Sohler, I.G.Stefan, T.Sumikama, D.Suzuki, R.Taniuchi, J.Taprogge, Zs.Vajta, J.J.Valiente-Dobon, H.Watanabe, V.Werner, J.Wu, A.Yagi, M.Yalcinkaya, R.Yokoyama, K.Yoshinaga

β-decay of 75Ni and the systematics of the low-lying level structure of neutron-rich odd-A Cu isotopes

RADIOACTIVITY 75Ni(β-), (β-n)[from 9Be(238U, F), E=345 MeV/nucleon, followed by mass separation and identification of fragments of interest using the BigRIPS separator and ZeroDegree spectrometer, and implanted in WAS3ABi stopper at RIBF-RIKEN facility]; measured Eβ, Eγ, Iγ, γγ-coin, (implants)β-correlations, (implants)βγ-coin using the EURICA array for γ detection, half-life and %β-n or Pn for the decay of 75Ni. 75Cu; deduced levels, J, π, Iβ, logft values. Comparison with Monte Carlo shell model (MCSM) calculations. 74Cu, 75,76,77,78Zn, 76,80,81Ga, 80,81Ge(β-); observed γ rays in spectral Fig. 1.

NUCLEAR STRUCTURE 75Cu; calculated levels, J, π. 75,77Cu; calculated occupation numbers of proton and neutron orbits, potential energy surfaces for different spin states. 69,71,73,75,77,79Cu; systematics of energies of the first 1/2- states and corresponding B(E2) values, energies and decay sequences of particle-core coupling states, intruder states. Monte Carlo shell model calculations were performed using the A3DA interaction. Comparison with experimental data.

doi: 10.1103/PhysRevC.102.034314
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2020BO04      Phys.Rev.Lett. 124, 112501 (2020)

F.Boulay, G.S.Simpson, Y.Ichikawa, S.Kisyov, D.Bucurescu, A.Takamine, D.S.Ahn, K.Asahi, H.Baba, D.L.Balabanski, T.Egami, T.Fujita, N.Fukuda, C.Funayama, T.Furukawa, G.Georgiev, A.Gladkov, M.Hass, K.Imamura, N.Inabe, Y.Ishibashi, T.Kawaguchi, T.Kawamura, W.Kim, Y.Kobayashi, S.Kojima, A.Kusoglu, R.Lozeva, S.Momiyama, I.Mukul, M.Niikura, H.Nishibata, T.Nishizaka, A.Odahara, Y.Ohtomo, D.Ralet, T.Sato, Y.Shimizu, T.Sumikama, H.Suzuki, H.Takeda, L.C.Tao, Y.Togano, D.Tominaga, H.Ueno, H.Yamazaki, X.F.Yang, J.M.Daugas

g Factor of the 99Zr(7/2+) Isomer: Monopole Evolution in the Shape-Coexisting Region

RADIOACTIVITY 99Zr(IT) [from 9Be(238U, X), E=345 MeV/nucleon];measured decay products, Eγ, Iγ; deduced g-ray energies, J, π, level scheme, g-factor using a method of time-differential perturbed angular distribution (TDPAD), T1/2. Comparison with IBFM-1 calculations.

doi: 10.1103/PhysRevLett.124.112501
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2020CO01      Phys.Lett. B 800, 135071 (2020)

M.L.Cortes, W.Rodriguez, P.Doornenbal, A.Obertelli, J.D.Holt, S.M.Lenzi, J.Menendez, F.Nowacki, K.Ogata, A.Poves, T.R.Rodriguez, A.Schwenk, J.Simonis, S.R.Stroberg, K.Yoshida, L.Achouri, H.Baba, F.Browne, D.Calvet, F.Chateau, S.Chen, N.Chiga, A.Corsi, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, H.N.Liu, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, O.Aktas, T.Aumann, L.X.Chung, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, D.Kim, T.Koiwai, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, B.D.Linh, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, D.Sohler, P.-A.Soderstrom, S.Takeuchi, H.Toernqvist, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

Shell evolution of N=40 isotones towards 60Ca: First spectroscopy of 62Ti

NUCLEAR REACTIONS 1H(63V, 2p)62Ti, E≈200 MeV/nucleon, [secondary 63V beam from 9Be(70Zn, X), E=345 MeV/nucleon primary reaction followed by separation of fragments of interest event-by-event using BigRIPS spectrometer at RIBF-RIKEN]; measured yields of reaction products with Z=22-24 and A/Q=2.60 to 2.85, Eγ, Iγ, γγ-coin using MINOS device, SAMURAI dipole magnet, Time Projection Chamber (TPC), and DALI2+ array of 226 NaI(Tl) detectors. 62Ti; deduced first 2+ and 4+ levels, cross sections. Comparison with theoretical calculations for N=40, Z=20-32 (even) using large-scale shell model (LSSM), symmetry conserving configuration mixing (SCCM) with Gogny D1S effective interaction, and valence-space in-medium similarity renormalization group (VS-IMSRG).

doi: 10.1016/j.physletb.2019.135071
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2020CO07      Phys.Rev.Lett. 124, 212503 (2020)

K.J.Cook, T.Nakamura, Y.Kondo, K.Hagino, K.Ogata, A.T.Saito, N.L.Achouri, T.Aumann, H.Baba, F.Delaunay, Q.Deshayes, P.Doornenbal, N.Fukuda, J.Gibelin, J.W.Hwang, N.Inabe, T.Isobe, D.Kameda, D.Kanno, S.Kim, N.Kobayashi, T.Kobayashi, T.Kubo, S.Leblond, J.Lee, F.M.Marques, R.Minakata, T.Motobayashi, K.Muto, T.Murakami, D.Murai, T.Nakashima, N.Nakatsuka, A.Navin, S.Nishi, S.Ogoshi, N.A.Orr, H.Otsu, H.Sato, Y.Satou, Y.Shimizu, H.Suzuki, K.Takahashi, H.Takeda, S.Takeuchi, R.Tanaka, Y.Togano, J.Tsubota, A.G.Tuff, M.Vandebrouck, K.Yoneda

Halo Structure of the Neutron-Dripline Nucleus 19B

NUCLEAR REACTIONS Pb, C(19B, 2n)17B, E=220 MeV/nucleon; measured reaction products, Eγ, Iγ. 19B; deduced σ(E), exclusive and inclusive neutron removal σ, Coulomb dissociation σ, two-neutron probability densities, B(E1).

doi: 10.1103/PhysRevLett.124.212503
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2020CO12      Phys.Rev. C 102, 064320 (2020)

M.L.Cortes, W.Rodriguez, P.Doornenbal, A.Obertelli, J.D.Holt, J.Menendez, K.Ogata, A.Schwenk, N.Shimizu, J.Simonis, Y.Utsuno, K.Yoshida, L.Achouri, H.Baba, F.Browne, D.Calvet, F.Chateau, S.Chen, N.Chiga, A.Corsi, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, H.N.Liu, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, O.Aktas, T.Aumann, L.X.Chung, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, D.Kim, T.Koiwai, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, B.D.Linh, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, P.-A.Soderstrom, D.Sohler, S.Takeuchi, H.Toernqvist, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

N = 32 shell closure below calcium: Low-lying structure of 50Ar

NUCLEAR REACTIONS 1H(52Ca, 3p), E=266 MeV; 1H(53Ca, n3p), E=258 MeV; 1H(54Ca, 2n3p), E=251 MeV; 1H(55Ca, 3n3p), E=247 MeV; 1H(51K, 2p), E=257 MeV; 1H(52K, n2p), E=250 MeV; 1H(53K, 2n2p), E=245 MeV; 1H(51Ar, np), E=241 MeV; 1H(50Ar, p'), [secondary 52,53,54,55Ca, 51,52,53K, 50,51Ar beams from 9Be(70Zn, X), E=345 MeV/nucleon primary beam, followed by separation of fragments using BigRIPS separator at RIBF-RIKEN facility]; measured reaction products, yields, inclusive σ, Eγ, Iγ, γγ-coin using the MINOS hydrogen target, time projection chamber, SAMURAI dipole magnet, and DALI2+ array of 226 NaI(Tl) detectors. 50Ar; deduced Doppler corrected γ-ray spectra, levels, J, π; calculated levels, J, π, spectroscopic factors and cross sections for levels using the SDPF-MU shell model, and ab initio VS-IMSRG approach.

doi: 10.1103/PhysRevC.102.064320
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2020FR06      Phys.Rev.Lett. 125, 012501 (2020)

A.Frotscher, M.Gomez-Ramos, A.Obertelli, P.Doornenbal, G.Authelet, H.Baba, D.Calvet, F.Chateau, S.Chen, A.Corsi, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, T.Isobe, V.Lapoux, M.Matsushita, S.Momiyama, T.Motobayashi, M.Niikura, H.Otsu, N.Paul, C.Peron, A.Peyaud, E.C.Pollacco, J.-Y.Rousse, H.Sakurai, C.Santamaria, M.Sasano, Y.Shiga, N.Shimizu, D.Steppenbeck, S.Takeuchi, R.Taniuchi, T.Uesaka, H.Wang, K.Yoneda, T.Ando, T.Arici, A.Blazhev, F.Browne, A.M.Bruce, R.Carroll, L.X.Chung, M.L.Cortes, M.Dewald, B.Ding, Zs.Dombradi, F.Flavigny, S.Franchoo, F.Giacoppo, M.Gorska, A.Gottardo, K.Hadynska-Klek, Z.Korkulu, S.Koyama, Y.Kubota, A.Jungclaus, J.Lee, M.Lettmann, B.D.Linh, J.Liu, Z.Liu, C.Lizarazo, C.Louchart, R.Lozeva, K.Matsui, T.Miyazaki, K.Moschner, S.Nagamine, N.Nakatsuka, C.Nita, S.Nishimura, C.R.Nobs, L.Olivier, S.Ota, Z.Patel, Zs.Podolyak, M.Rudigier, E.Sahin, T.Y.Saito, C.Shand, P.-A.Soderstrom, I.G.Stefan, T.Sumikama, D.Suzuki, R.Orlandi, V.Vaquero, Zs.Vajta, V.Werner, K.Wimmer, J.Wu, Z.Xu

Sequential Nature of (p, 3p) Two-Proton Knockout from Neutron-Rich Nuclei

NUCLEAR REACTIONS 1H(101Sr, 3p), (75Zn, 3p), (81Ga, 3p)79Cu, (81Ga, 2p)80Zn, E ∼ 205 MeV/nucleon; measured reaction products, Ep, Ip; deduced σ.

doi: 10.1103/PhysRevLett.125.012501
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2020GO06      Phys.Rev. C 102, 014323 (2020)

A.Gottardo, G.de Angelis, P.Doornenbal, L.Coraggio, A.Gargano, N.Itaco, K.Kaneko, P.Van Isacker, T.Furumoto, G.Benzoni, J.Lee, H.Liu, M.Matsushita, D.Mengoni, V.Modamio-Hoybjor, S.Momiyama, T.Motobayashi, D.R.Napoli, M.Niikura, E.Sahin, Y.Shiga, H.Sakurai, R.Taniuchi, S.Takeuchi, H.Wang, J.J.Valiente-Dobon, R.Avigo, H.Baba, N.Blasi, F.L.Bello Garrote, F.Browne, F.C.L.Crespi, S.Ceruti, R.Daido, M.-C.Delattre, D.Fang, Zs.Dombradi, T.Isobe, I.Kuti, G.Lorusso, K.Matsui, B.Melon, T.Miyazaki, S.Nishimura, R.Orlandi, Z.Patel, S.Rice, L.Sinclair, P.A.Soderstrom, D.Sohler, T.Sumikama, J.Taprogge, Zs.Vajta, H.Watanabe, O.Wieland, J.Wu, Z.Y.Xu, M.Yalcinkaya, R.Yokoyama

Transition strengths in the neutron-rich 73, 74, 75Ni isotopes

NUCLEAR REACTIONS Pb(73Ni, 73Ni'), (74Ni, 74Ni'), (75Ni, 75Ni'), E=215 MeV/nucleon, [secondary cocktail beam from 9Be(238U, F), E=345 MeV/nucleon, and separated by A/Q using the BigRIPS fragment separator at RIBF-RIKEN facility]; measured reaction products identified by the ZeroDegree spectrometer, Eγ, Iγ, (scattered Ni nuclei)γ-coin using the WAS3Abi-EURICA setup with the DALI2 NaI(Tl) array for γ detection. 73,74,75Ni; deduced levels, J, π, B(E2) from Coulomb excitation cross sections. Comparison with large-scale shell model calculations.

doi: 10.1103/PhysRevC.102.014323
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2020HA14      Phys.Rev. C 101, 044311 (2020)

J.Ha, T.Sumikama, F.Browne, N.Hinohara, A.M.Bruce, S.Choi, I.Nishizuka, S.Nishimura, P.Doornenbal, G.Lorusso, P.-A.Soderstrom, H.Watanabe, R.Daido, Z.Patel, S.Rice, L.Sinclair, J.Wu, Z.Y.Xu, A.Yagi, H.Baba, N.Chiga, R.Carroll, F.Didierjean, Y.Fang, N.Fukuda, G.Gey, E.Ideguchi, N.Inabe, T.Isobe, D.Kameda, I.Kojouharov, N.Kurz, T.Kubo, S.Lalkovski, Z.Li, R.Lozeva, H.Nishibata, A.Odahara, Zs.Podolyak, P.H.Regan, O.J.Roberts, H.Sakurai, H.Schaffner, G.S.Simpson, H.Suzuki, H.Takeda, M.Tanaka, J.Taprogge, V.Werner, O.Wieland

Shape evolution of neutron-rich 106, 108, 110Mo isotopes in the triaxial degree of freedom

RADIOACTIVITY 106,108,110Nb, 106,108,110Zr(β-); 108,110Nb(β-n)[from 9Be(238U, F), E=345 MeV/nucleon, followed by separation of ions using BigRIPS fragment separator and transported through the ZeroDegree spectrometer at RIBF-RIKEN facility]; measured Eγ, Iγ, β-, β-γγ-coin, and half-lives of decays of 106Nb, 108Nb, 110Nb and 110Zr from β-delayed γ-decay curves, half-lives of the first 2+ states in 106Mo, 108Mo and 110Mo using WAS3ABi system for ion and β- detection, EURICA array for γ detection, and fast-timing array for level half-lives. 106,108,110Mo; deduced levels, J, π, bands, configurations, β feedings, logft, B(E2) ratios, quadrupole deformation, kinematic moment of inertia for the ground bands, staggering pattern. 108,110Nb; deduced %β-n or Pn from the β-delayed γ rays emitted from the daughter nuclei, two β-decaying states or an isomer in 110Nb. 106,108,110Nb; deduced J, π; discussed Nilsson configurations. Comparison with theoretical calculations. Systematics of E(4+)/E(first 2+) ratios in N(even)=56-72, Zr, Mo, Ru and Pd isotopes, and level energy staggering pattern relative to the first 2+ states in N=64, 66, 68 Mo, Ru, and Pd isotopes.

NUCLEAR STRUCTURE 106,108,110Mo; calculated levels, J, π, potential-energy surface (PES) contours and the collective-wave functions for low-lying positive-parity states. Comparison with beyond-meanfield calculations using the constrained Hartree-Fock-Bogoliubov and local quasiparticle-random-phase approximation with SLy5+T interaction. Comparison with experimental data.

doi: 10.1103/PhysRevC.101.044311
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2020JU02      Phys.Rev. C 102, 034324 (2020)

A.Jungclaus, J.M.Keatings, G.S.Simpson, H.Naidja, A.Gargano, S.Nishimura, P.Doornenbal, G.Gey, G.Lorusso, P.-A.Soderstrom, T.Sumikama, J.Taprogge, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, Y.Shimizu, H.Suzuki, H.Takeda, Z.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, S.Bonig, J.-M.Daugas, R.Gernhauser, S.Ilieva, T.Kroll, A.Montaner-Piza, K.Moschner, D.Mucher, H.Nishibata, A.Odahara, R.Orlandi, M.Scheck, K.Steiger, A.Wendt

Evolution of proton single-particle states in neutron-rich Sb isotopes beyond N=82

RADIOACTIVITY 136,137,138Sn(β-)(β-n)[from 9Be(238U, F), E=345 MeV/nucleon, followed by separation and identification of fragments of interest using BigRIPS separator and ZeroDegree spectrometer, and implants deposited at WAS3ABi detector at RIBF-RIKEN facility]; measured Eγ, Iγ, Eβ, βγ- and γγ-coin using the EURICA array of Ge detectors, half-lives of decays of 136Sn, 137Sn and 138Sn. 136,137,138Sb; deduced levels, J, π, %β-n or Pn, β feedings, logft, configurations. Comparison with shell model calculations using the Napoli and N3LOP interactions. Systematics of first 5/2+ and 7/2+ states in 133,135,137,139,141Sb. 134,136,138Sb; calculated energies of levels in 0- to 7- spin range using shell model calculations using the Napoli and N3LOP interactions, and compared with experimental data. Systematics of experimental energies of the first 5/2+ and 7/2+ states in A=107-135, odd-A Sb isotopes.

doi: 10.1103/PhysRevC.102.034324
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2020KU34      Phys.Rev.Lett. 125, 252501 (2020)

Y.Kubota, A.Corsi, G.Authelet, H.Baba, C.Caesar, D.Calvet, A.Delbart, M.Dozono, J.Feng, F.Flavigny, J.-M.Gheller, J.Gibelin, A.Giganon, A.Gillibert, K.Hasegawa, T.Isobe, Y.Kanaya, S.Kawakami, D.Kim, Y.Kikuchi, Y.Kiyokawa, M.Kobayashi, N.Kobayashi, T.Kobayashi, Y.Kondo, Z.Korkulu, S.Koyama, V.Lapoux, Y.Maeda, F.M.Marques, T.Motobayashi, T.Miyazaki, T.Nakamura, N.Nakatsuka, Y.Nishio, A.Obertelli, K.Ogata, A.Ohkura, N.A.Orr, S.Ota, H.Otsu, T.Ozaki, V.Panin, S.Paschalis, E.C.Pollacco, S.Reichert, J.-Y.Rousse, A.T.Saito, S.Sakaguchi, M.Sako, C.Santamaria, M.Sasano, H.Sato, M.Shikata, Y.Shimizu, Y.Shindo, L.Stuhl, T.Sumikama, Y.L.Sun, M.Tabata, Y.Togano, J.Tsubota, Z.H.Yang, J.Yasuda, K.Yoneda, J.Zenihiro, T.Uesaka

Surface Localization of the Dineutron in 11Li

NUCLEAR REACTIONS 1H(11Li, np)2NN, E=246 MeV/nucleon; measured reaction products, Ep, Ip, En, In; deduced missing momentum distribution, σ(θ, E), formation of a dineutron. Comparison with calculations.

doi: 10.1103/PhysRevLett.125.252501
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2020LI15      Phys.Rev.Lett. 124, 222501 (2020)

C.Lizarazo, P.-A.Soderstrom, V.Werner, N.Pietralla, P.M.Walker, G.X.Dong, F.R.Xu, T.R.Rodriguez, F.Browne, P.Doornenbal, S.Nishimura, CC.Nija, A.Obertelli, T.Ando, T.Arici, G.Authelet, H.Baba, A.Blazhev, A.M.Bruce, D.Calvet, R.J.Caroll, F.Chateau, S.Chen, L.X.Chung, A.Corsi, M.L.Cortes, A.Delbart, M.Dewald, B.Ding, F.Flavigny, S.Franchoo, J.Gerl, J.-M.Gheller, A.Giganon, A.Gillibert, M.Gorska, A.Gottardo, I.Kojouharov, N.Kurz, V.Lapoux, J.Lee, M.Lettmann, B.D.Linh, J.J.Liu, Z.Liu, S.Momiyama, K.Moschner, T.Motobayashi, S.Nagamine, N.Nakatsuka, M.Niikura, C.Nobs, L.Olivier, Z.Patel, N.Paul, Zs.Podolyak, J.-Y.Rousse, M.Rudigier, T.Y.Saito, H.Sakurai, C.Santamaria, H.Schaffner, C.Shand, I.Stefan, D.Steppenbeck, R.Taniuchi, T.Uesaka, V.Vaquero, K.Wimmer, Z.Xu

Metastable States of 92, 94Se: Identification of an Oblate K Isomer of 94Se and the Ground-State Shape Transition between N = 58 and 60

NUCLEAR REACTIONS 9Be(238U, X)92Se/94Se, 1H(92Se, 92Se'), (94Se, 94Se'), E<345 MeV/nucleon; measured reaction products. 92,94Se; deduced γ-ray energies, J, π, isomeric state T1/2. Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.124.222501
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2020LI28      Phys.Rev. C 102, 024301 (2020)

J.J.Liu, J.Lee, H.Watanabe, S.Nishimura, G.X.Zhang, J.Wu, P.M.Walker, P.H.Regan, P.-A.Soderstrom, H.Kanaoka, Z.Korkulu, P.S.Lee, A.Yagi, A.C.Dai, F.R.Xu, D.S.Ahn, T.Alharbi, H.Baba, F.Browne, A.M.Bruce, R.J.Carroll, K.Y.Chae, Zs.Dombradi, P.Doornenbal, A.Estrade, N.Fukuda, C.Griffin, E.Ideguchi, N.Inabe, T.Isobe, S.Kanaya, I.Kojouharov, F.G.Kondev, T.Kubo, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, G.J.Lane, C.S.Lee, E.J.Lee, G.Lorusso, G.Lotay, C.-B.Moon, I.Nishizuka, C.R.Nita, A.Odahara, Z.Patel, V.H.Phong, Zs.Podolyak, O.J.Roberts, H.Sakurai, H.Schaffner, C.M.Shand, Y.Shimizu, T.Sumikama, H.Suzuki, H.Takeda, S.Terashima, Zs.Vajta, J.J.Valiente-Dobon, Z.Y.Xu

Isomeric and β-decay spectroscopy of 173, 174Ho

RADIOACTIVITY 173,174Ho(β-)[from 9Be(238U, F), E=345 MeV/nucleon, followed by separation of fission fragments using BigRIPS separator and ZeroDegree spectrometer and implantation in WAS3ABi at RIBF-RIKEN facility]; measured Eγ, Iγ, Eβ, conversion electrons, βγ-, (ce)γ- and γγ-coin, half-lives of 173Ho and 174Ho decays from γ-decay curves, half-life of an isomer in 173Ho using double-sided silicon strip detectors (DSSD) and the EURICA γ-ray spectrometer. 174Er; deduced levels, J, π, β feedings, logft, configurations. 173Ho; deduced level, isomer, J, π. 174Ho; deduced J, π and configuration of ground state. 173,174Ho, 173,174Er; calculated levels, J, π, deformation parameters β2, γ and β4, configurations using configuration-constrained potential energy surface (PES) calculations. Systematics of yrast g.s. bands in N=106 isotones: 172Dy, 174Er, 176Yb, 178Hf, 180W, 182Os. Systematics of experimental logft values in decays of 168Ho, 171,173Er, 174,176Tm, 178Lu. Systematics of Weisskopf hindrance factors in odd-A Ho isotopes: 159,161,163,165,167Ho.

doi: 10.1103/PhysRevC.102.024301
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2020LO06      Phys.Rev. C 101, 034314 (2020)

T.Lokotko, S.Leblond, J.Lee, P.Doornenbal, A.Obertelli, A.Poves, F.Nowacki, K.Ogata, K.Yoshida, G.Authelet, H.Baba, D.Calvet, F.Chateau, S.Chen, A.Corsi, A.Delbart, J.-M.Gheller, A.Gillibert, T.Isobe, V.Lapoux, M.Matsushita, S.Momiyama, T.Motobayashi, M.Niikura, H.Otsu, C.Peron, A.Peyaud, E.C.Pollacco, J.-Y.Rousse, H.Sakurai, C.Santamaria, Z.Y.Xu, M.Sasano, Y.Shiga, S.Takeuchi, R.Taniuchi, T.Uesaka, H.Wang, V.Werner, F.Browne, L.X.Chung, Zs.Dombradi, S.Franchoo, F.Giacoppo, A.Gottardo, K.Hadynska-Klek, Z.Korkulu, S.Koyama, Y.Kubota, M.Lettmann, C.Louchart, R.Lozeva, K.Matsui, T.Miyazaki, S.Nishimura, L.Olivier, S.Ota, Z.Patel, E.Sahin, C.Shand, P.-A.Soderstrom, I.Stefan, D.Steppenbeck, T.Sumikama, D.Suzuki, Zs.Vajta, J.Wu

Shell structure of the neutron-rich isotopes 69, 71, 73Co

NUCLEAR REACTIONS 1H(70Ni, 2p), E=252 MeV/nucleon; 1H(72Ni, 2p), E=241 MeV/nucleon; 1H(74Ni, 2p), E=234 MeV/nucleon, [secondary beams from 9Be(238U, X), E=345 MeV/nucleon]; measured reaction products, Eγ, Iγ, γγ-coin, inclusive and exclusive σ using the DALI2 NaI(Tl) detector array for γ detection, the MINOS time-projection-chamber for p detection, the BigRIPS separator for secondary beam identification, and ZeroDegree spectrometer for reaction product identification at RIBF-RIKEN. 69,71,73Co; deduced levels, J, π, configurations, half-life estimates of three low energy transitions in 69Co. Distorted-wave impulse approximation (DWIA) analysis for cross sections. Comparison with shell model calculations using the Lenzi-Nowacki-Poves-Sieja LNPS and PFSDG-U interactions, and with previous experimental data.

doi: 10.1103/PhysRevC.101.034314
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2020MI13      Phys.Rev.Lett. 125, 122501 (2020)

S.Michimasa, M.Kobayashi, Y.Kiyokawa, S.Ota, R.Yokoyama, D.Nishimura, D.S.Ahn, H.Baba, G.P.A.Berg, M.Dozono, N.Fukuda, T.Furuno, E.Ideguchi, N.Inabe, T.Kawabata, S.Kawase, K.Kisamori, K.Kobayashi, T.Kubo, Y.Kubota, C.S.Lee, M.Matsushita, H.Miya, A.Mizukami, H.Nagakura, H.Oikawa, H.Sakai, Y.Shimizu, A.Stolz, H.Suzuki, M.Takaki, H.Takeda, S.Takeuchi, H.Tokieda, T.Uesaka, K.Yako, Y.Yamaguchi, Y.Yanagisawa, K.Yoshida, S.Shimoura

Mapping of a New Deformation Region around 62Ti

ATOMIC MASSES 61,62,63,64V, 58,59,60,61,62Ti, 55,56,57,58,59,60Sc; measured time of flight, charge, magnetic rigidity; deduced mass excesses. Comparison with AME2016 and available data.

RADIOACTIVITY 59,61Ti, 56,58Sc(IT) [from 9Be(70Zn, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced γ-ray energies and intensities, T1/2. Comparison with available data.

doi: 10.1103/PhysRevLett.125.122501
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2020PA25      Phys.Rev. C 102, 014304 (2020)

J.Park, R.Krucken, A.Blazhev, D.Lubos, R.Gernhauser, M.Lewitowicz, S.Nishimura, D.S.Ahn, H.Baba, B.Blank, P.Boutachkov, F.Browne, I.Celikovic, G.de France, P.Doornenbal, T.Faestermann, Y.Fang, N.Fukuda, J.Giovinazzo, N.Goel, M.Gorska, H.Grawe, S.Ilieva, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, G.Lorusso, K.Moschner, D.Murai, I.Nishizuka, Z.Patel, M.M.Rajabali, S.Rice, H.Sakurai, H.Schaffner, Y.Shimizu, L.Sinclair, P.-A.Soderstrom, K.Steiger, T.Sumikama, H.Suzuki, H.Takeda, Z.Wang, H.Watanabe, J.Wu, Z.Y.Xu

Spectroscopy of 99Cd and 101In from β decays of 99In and 101Sn

RADIOACTIVITY 99In(EC), (β+), 101Sn(EC), (β+), (β+p)[from 9Be(124Xe, X), E=345 MeV/nucleon, followed by separation of fragments of interest using BigRIPS separator and the ZeroDegree spectrometer at RIBF-RIKEN facility]; measured β-correlated γ spectra, Eγ, Iγ, γγ-coin using the WAS3ABi detector and the EURICA array; generated hypothetical βγ-coin and βγγ-coin matrices. 99Cd, 101In; deduced levels, J, π. 101Sn(β+p); analyzed intensity distributions of β-delayed proton emission branches as a function of the excitation energy; calculated partial half-lives of electromagnetic decay and proton emission. Comparison of level structure with phenomenological shell model using SR88MHJM interaction, and β+p decay with semi-empirical proton emission theory by Delion, Liotta, and Wyss 2006.

doi: 10.1103/PhysRevC.102.014304
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2020SU06      Phys.Lett. B 802, 135215 (2020)

Y.L.Sun, A.Obertelli, P.Doornenbal, C.Barbieri, Y.Chazono, T.Duguet, H.N.Liu, P.Navratil, F.Nowacki, K.Ogata, T.Otsuka, F.Raimondi, V.Soma, Y.Utsuno, K.Yoshida, N.Achouri, H.Baba, F.Browne, D.Calvet, F.Chateau, S.Chen, N.Chiga, A.Corsi, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, O.Aktas, T.Aumann, L.X.Chung, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, D.Kim, T.Koiwai, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, B.D.Linh, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, D.Sohler, P.-A.Soderstrom, S.Takeuchi, H.Tornqvist, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

Restoration of the natural E(1/2+1)-E(3/2+1) energy splitting in odd-K isotopes towards N = 40

NUCLEAR REACTIONS 52,54Ca(p, 2p)51K/53K, E ∼ 250 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, partial σ. Comparison with ab initio and shell-model calculations with improved phenomenological effective interactions.

doi: 10.1016/j.physletb.2020.135215
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2020VA01      Phys.Rev.Lett. 124, 022501 (2020)

V.Vaquero, A.Jungclaus, T.Aumann, J.Tscheuschner, E.V.Litvinova, J.A.Tostevin, H.Baba, D.S.Ahn, R.Avigo, K.Boretzky, A.Bracco, C.Caesar, F.Camera, S.Chen, V.Derya, P.Doornenbal, J.Endres, N.Fukuda, U.Garg, A.Giaz, M.N.Harakeh, M.Heil, A.Horvat, K.Ieki, N.Imai, N.Inabe, N.Kalantar-Nayestanaki, N.Kobayashi, Y.Kondo, S.Koyama, T.Kubo, I.Martel, M.Matsushita, B.Million, T.Motobayashi, T.Nakamura, N.Nakatsuka, M.Nishimura, S.Nishimura, S.Ota, H.Otsu, T.Ozaki, M.Petri, R.Reifarth, J.L.Rodriguez-Sanchez, D.Rossi, A.T.Saito, H.Sakurai, D.Savran, H.Scheit, F.Schindler, P.Schrock, D.Semmler, Y.Shiga, M.Shikata, Y.Shimizu, H.Simon, D.Steppenbeck, H.Suzuki, T.Sumikama, D.Symochko, I.Syndikus, H.Takeda, S.Takeuchi, R.Taniuchi, Y.Togano, J.Tsubota, H.Wang, O.Wieland, K.Yoneda, J.Zenihiro, A.Zilges

Fragmentation of Single-Particle Strength around the Doubly Magic Nucleus 132Sn and the Position of the 0f5/2 Proton-Hole State in 131In

NUCLEAR REACTIONS 4He(132Sn, n), (132Sn, p), E=203 MeV/nucleon; 9Be(238U, X)132Sn, E=345 MeV/nucleon; measured reaction products, Eγ, Iγ. 131Sn, 131In; deduced γ-ray energies, spectroscopic factors, strong fragmentation of single-hole strength. Comparison with theoretical calculations.

doi: 10.1103/physrevlett.124.022501
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2020VI02      Acta Phys.Pol. B51, 587 (2020)

A.Vitez-Sveiczer, A.Algora, A.I.Morales, B.Rubio, G.G.Kiss, G.De Angelis, R.Recchia, S.Nishimura, J.Agramunt, V.Guadilla, A.Montaner-Piza, S.E.A.Orrigo, A.Horvath, D.Napoli, S.Lenzi, A.Boso, V.H.Phong, J.Wu, P.-A.Soderstrom, T.Sumikama, H.Suzuki, H.Takeda, D.S.Ahn, H.Baba, P.Doornenbal, N.Fukuda, N.Inabe, T.Isobe, T.Kubo, S.Kubono, H.Sakurai, Y.Shimizu, S.Chen, B.Blank, P.Ascher, M.Gerbaux, T.Goigoux, J.Giovinazzo, S.Grevy, T.Kurtukian Nieto, C.Magron, W.Gelletly, Z.Dombradi, Y.Fujita, M.Tanaka, P.Aguilera, F.Molina, J.Eberth, F.Diel, D.Lubos, C.Borcea, E.Ganioglu, D.Nishimura, H.Oikawa, Y.Takei, S.Yagi, W.Korten, G.De France, P.Davies, J.Liu, J.Lee, T.Lokotko, I.Kojouharov, N.Kurz, H.Shaffner

Studying the Exotic Decay 70Kr → 70Br*

doi: 10.5506/APhysPolB.51.587
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2020WI05      Eur.Phys.J. A 56, 159 (2020)

K.Wimmer, T.Arici, W.Korten, P.Doornenbal, J.-P.Delaroche, M.Girod, J.Libert, T.R.Rodriguez, P.Aguilera, A.Algora, T.Ando, H.Baba, B.Blank, A.Boso, S.Chen, A.Corsi, P.Davies, G.de Angelis, G.de France, D.T.Doherty, J.Gerl, R.Gernhauser, T.Goigoux, D.Jenkins, G.Kiss, S.Koyama, T.Motobayashi, S.Nagamine, M.Niikura, S.Nishimura, A.Obertelli, D.Lubos, V.H.Phong, B.Rubio, E.Sahin, T.Y.Saito, H.Sakurai, L.Sinclair, D.Steppenbeck, R.Taniuchi, V.Vaquero, R.Wadsworth, J.Wu, M.Zielinska

Shape coexistence revealed in the N = Z isotope 72Kr through inelastic scattering

doi: 10.1140/epja/s10050-020-00171-3
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2020WU04      Phys.Rev. C 101, 042801 (2020)

J.Wu, S.Nishimura, P.Moller, M.R.Mumpower, R.Lozeva, C.B.Moon, A.Odahara, H.Baba, F.Browne, R.Daido, P.Doornenbal, Y.F.Fang, M.Haroon, T.Isobe, H.S.Jung, G.Lorusso, B.Moon, Z.Patel, S.Rice, H.Sakurai, Y.Shimizu, L.Sinclair, P.-A.Soderstrom, T.Sumikama, H.Watanabe, Z.Y.Xu, A.Yagi, R.Yokoyama, D.S.Ahn, F.L.Bello Garrote, J.M.Daugas, F.Didierjean, N.Fukuda, N.Inabe, T.Ishigaki, D.Kameda, I.Kojouharov, T.Komatsubara, T.Kubo, N.Kurz, K.Y.Kwon, S.Morimoto, D.Murai, H.Nishibata, H.Schaffner, T.M.Sprouse, H.Suzuki, H.Takeda, M.Tanaka, K.Tshoo, Y.Wakabayashi

β-decay half-lives of 55 neutron-rich isotopes beyond the N = 82 shell gap

RADIOACTIVITY 134,135,136,137,138,139Sn, 134,135,136,137,138,139,140,141,142Sb, 137,138,139,140,141,142,143,144Te, 140,141,142,143,144,145,146I, 142,143,144,145,146,147,148Xe, 145,146,147,148,149,150,151Cs, 148,149,150,151,152,153Ba, 151,152,153,154,155La(β-)[from 9Be(238U, F), E=345 MeV/nucleon, followed by separation of fragments using BigRIPS separator at RIBF-RIKEN]; measured β and γ radiations, half-lives by (implant)β and (implant)βγ correlations using the Wide range Active Silicon-Strip Stop per Array for Beta and ion (WAS3ABi) detection system and Euroball RIKEN Cluster Array (EURICA) of 84 Ge cluster detectors. Comparison with previously available experimental half-lives, and with theoretical calculations using FRDM+QRPA, KTUY+GT2, RHB+pn-RQRPA, and DF+CQRPA models. 141Te(β-); calculated half-life and Gamow-Teller strengths using FRDM+QRPA(2019) model, and compared with experimental data. Discussed and calculated effects of new half-life data on r-process abundance.

doi: 10.1103/PhysRevC.101.042801
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2019CH24      Phys.Rev.Lett. 122, 212502 (2019)

Z.Q.Chen, Z.H.Li, H.Hua, H.Watanabe, C.X.Yuan, S.Q.Zhang, G.Lorusso, S.Nishimura, H.Baba, F.Browne, G.Benzoni, K.Y.Chae, F.C.L.Crespi, P.Doornenbal, N.Fukuda, G.Gey, R.Gernhauser, N.Inabe, T.Isobe, D.X.Jiang, A.Jungclaus, H.S.Jung, Y.Jin, D.Kameda, G.D.Kim, Y.K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, X.Q.Li, J.L.Lou, G.J.Lane, C.G.Li, D.W.Luo, A.Montaner-Piza, K.Moschner, C.Y.Niu, F.Naqvi, M.Niikura, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, Z.Podolyak, T.Sumikama, P.-A.Soderstrom, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, H.Suzuki, J.Taprogge, H.Takeda, Zs.Vajta, H.K.Wang, J.Wu, A.Wendt, C.G.Wang, H.Y.Wu, X.Wang, C.G.Wu, C.Xu, Z.Y.Xu, A.Yagi, Y.L.Ye, K.Yoshinaga

Proton Shell Evolution below 132Sn : First Measurement of Low-Lying β-Emitting Isomers in 123, 125Ag

RADIOACTIVITY 123,125Pd(β-) [from Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced energy levels, J, π. Comparison with shell-model calculations.

doi: 10.1103/PhysRevLett.122.212502
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2019CH43      Phys.Rev.Lett. 123, 142501 (2019)

S.Chen, J.Lee, P.Doornenbal, A.Obertelli, C.Barbieri, Y.Chazono, P.Navratil, K.Ogata, T.Otsuka, F.Raimondi, V.Soma, Y.Utsuno, K.Yoshida, H.Baba, F.Browne, D.Calvet, F.Chateau, N.Chiga, A.Corsi, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, J.Kahlbow, T.Kobayashi, Y.Kubota, V.Lapoux, H.N.Liu, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, N.Achouri, O.Aktas, T.Aumann, L.X.Chung, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, D.Kim, T.Koiwai, Y.Kondo, P.Koseoglou, C.Lehr, B.D.Linh, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, D.Sohler, P.-A.Soderstrom, S.Takeuchi, H.Tornqvist, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

Quasifree Neutron Knockout from 54Ca Corroborates Arising N=34 Neutron Magic Number

NUCLEAR REACTIONS 1H(54Ca, X)53Ca, E=216 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, exclusive σ, inclusive parallel momentum distributions. Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.123.142501
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2019CO12      Phys.Lett. B 797, 134843 (2019)

A.Corsi, Y.Kubota, J.Casal, M.Gomez-Ramos, A.M.Moro, G.Authelet, H.Baba, C.Caesar, D.Calvet, A.Delbart, M.Dozono, J.Feng, F.Flavigny, J.-M.Gheller, J.Gibelin, A.Giganon, A.Gillibert, K.Hasegawa, T.Isobe, Y.Kanaya, S.Kawakami, D.Kim, Y.Kiyokawa, M.Kobayashi, N.Kobayashi, T.Kobayashi, Y.Kondo, Z.Korkulu, S.Koyama, V.Lapoux, Y.Maeda, F.M.Marques, T.Motobayashi, T.Miyazaki, T.Nakamura, N.Nakatsuka, Y.Nishio, A.Obertelli, A.Ohkura, N.A.Orr, S.Ota, H.Otsu, T.Ozaki, V.Panin, S.Paschalis, E.C.Pollacco, S.Reichert, J.-Y.Rousse, A.T.Saito, S.Sakaguchi, M.Sako, C.Santamaria, M.Sasano, H.Sato, M.Shikata, Y.Shimizu, Y.Shindo, L.Stuhl, T.Sumikama, Y.L.Sun, M.Tabata, Y.Togano, J.Tsubota, T.Uesaka, Z.H.Yang, J.Yasuda, K.Yoneda, J.Zenihiro

Structure of 13Be probed via quasi-free scattering

NUCLEAR REACTIONS 1H(11Li, X), 246 MeV/nucleon; 1H(14Be, np)13Be, E=265 MeV/nucleon; 1H(17B, X), E=277 MeV/nucleon; measured reaction products, Ep, Ip, En, In, Eγ, Iγ. 12,13Be; deduced σ(E), partial level scheme, scattering lengths, resonance energies and widths, transverse momentum distributions.

doi: 10.1016/j.physletb.2019.134843
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2019DA02      Phys.Rev. C 99, 021302 (2019)

P.J.Davies, J.Park, H.Grawe, R.Wadsworth, R.Gernhauser, R.Krucken, F.Nowacki, D.S.Ahn, F.Ameil, H.Baba, T.Back, B.Blank, A.Blazhev, P.Boutachkov, F.Browne, I.Celikovic, M.Dewald, P.Doornenbal, T.Faestermann, Y.Fang, G.de France, N.Fukuda, A.Gengelbach, J.Gerl, J.Giovinazzo, S.Go, N.Goel, M.Gorska, E.Gregor, H.Hotaka, S.Ilieva, N.Inabe, T.Isobe, D.G.Jenkins, J.Jolie, H.S.Jung, A.Jungclaus, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, M.Lewitowicz, G.Lorusso, D.Lubos, L.Maier, E.Merchan, K.Moschner, D.Murai, F.Naqvi, H.Nishibata, D.Nishimura, S.Nishimura, I.Nishizuka, Z.Patel, N.Pietralla, M.M.Rajabali, S.Rice, H.Sakurai, H.Schaffner, Y.Shimizu, L.F.Sinclair, P.-A.Soderstrom, K.Steiger, T.Sumikama, H.Suzuki, H.Takeda, J.Taprogge, P.Thole, S.Valder, Z.Wang, N.Warr, H.Watanabe, V.Werner, J.Wu, Z.Y.Xu, A.Yagi, K.Yoshinaga, Y.Zhu

Toward the limit of nuclear binding on the N=Z line: Spectroscopy of 96Cd

NUCLEAR REACTIONS 9Be(124Xe, X), E=345 MeV/nucleon; measured delayed γ-spectrum, Eγ, Iγ, γγ-coin, half-life of an isomeric state using BigRIPS separator, silicon active stopper for particle identification, and EURICA Ge detector array for γ detection at RIBF-RIKEN. 96Cd; deduced levels, isomer, J, π, configuration, medium-spin negative-parity spin trap based on the coupling of isoscalar T=0 and isovector T=1 neutron-proton pairs. Comparison with shell model calculations using GF, LSSM, and r3g model spaces.

doi: 10.1103/PhysRevC.99.021302
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2019HA26      Phys.Rev. C 100, 024302 (2019)

G.Hafner, K.Moschner, A.Blazhev, P.Boutachkov, P.J.Davies, R.Wadsworth, F.Ameil, H.Baba, T.Back, M.Dewald, P.Doornenbal, T.Faestermann, A.Gengelbach, J.Gerl, R.Gernhauser, S.Go, M.Gorska, H.Grawe, E.Gregor, H.Hotaka, T.Isobe, D.G.Jenkins, J.Jolie, H.S.Jung, I.Kojouharov, N.Kurz, M.Lewitowicz, G.Lorusso, R.Lozeva, E.Merchan, F.Naqvi, H.Nishibata, D.Nishimura, S.Nishimura, N.Pietralla, H.Schaffner, P.-A.Soderstrom, K.Steiger, T.Sumikama, J.Taprogge, P.Thole, H.Watanbe, N.Warr, V.Werner, Z.Y.Xu, A.Yagi, K.Yoshinaga, Y.Zhu

Properties of gamma-decaying isomers in the 100Sn region populated in fragmentation of a 124Xe beam

NUCLEAR REACTIONS 9Be(124Xe, X)88Zr/88mZr/90Nb/90mNb/90Mo/90mMo/91Nb/91mNb/92Nb/92mNb/92Mo/92mMo/92Tc/92mTc/92Ru/92mRu/92Rh/92mRh/93Tc/93mTc/93Ru/93mRu/94Ru/94mRu/94Rh/94mRh/94Pd/94mPd/95Ag/95mAg/96Pd/96mPd/96Ag/96mAg/96Cd/96mCd/98Ag/98mAg/98Cd/98mCd, E=345 MeV/nucleon; measured yields of secondary ions by A/Q vs Z, Eγ, Iγ, (ion)γ-coin, isomeric ratios using BigRIPS and ZeroDegree spectrometers, active stopper SIMBA, and EURICA array at RIBF-RIKEN facility. Comparison of isomeric ratios with previous experimental results, and with abrasion-ablation model combined with sharp cutoff model.

RADIOACTIVITY 88mZr, 90mNb, 90m,92mMo, 92m,93mTc, 92m,93m,94mRu, 92mRh, 94m,96mPd, 96m,98mAg, 98mCd(IT); measured Eγ, Iγ, γγ- and (ion)γ-coin, half-lives of isomers (0.1-104 μs) by γ(t). 88Zr, 90Nb, 90,92Mo, 92,93Tc, 92,93,94Ru, 92Rh, 94,96Pd, 96,98Ag, 98Cd; deduced levels, J, π, B(E1), B(E2), B(E3), B(E4). Comparison with shell model calculations using NUSHELLX code and SLGT0PN interaction.

doi: 10.1103/PhysRevC.100.024302
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2019HA40      Acta Phys.Pol. B50, 431 (2019)

G.Haefner, K.Moschner, A.Blazhev, P.Boutachkov, P.J.Davies, R.Wadsworth, F.Ameil, H.Baba, T.Back, M.Dewald, P.Doornenbal, T.Faestermann, A.Gengelbach, J.Gerl, R.Gernhauser, S.Go, M.Gorska, H.Grawe, E.Gregor, H.Hotaka, T.Isobe, D.G.Jenkins, J.Jolie, H.S.Jung, I.Kojouharov, N.Kurz, M.Lewitowicz, G.Lorusso, E.Merchan, F.Naqvi, H.Nishibata, D.Nishimura, S.Nishimura, N.Pietralla, H.Schaffner, P.-A.Soderstrom, K.Steiger, T.Sumikama, J.Taprogge, P.Thole, H.Watanabe, N.Warr, V.Werner, Z.Y.Xu, A.Yagi, K.Yoshinaga, Y.Zhu

Properties of γ-decaying Isomers in the 100Sn Region Revisited

NUCLEAR REACTIONS 9Be(124Xe, X), E=345 MeV/nucleon; measured reaction products, Eγ, Iγ, γγ-coin; deduced T1/2 of isomeric states and isomeric ratios. BigRIPS, ZeroDegree spectrometer, WAS3ABi and EURICA array at RIBF-RIKEN facility. Comparison of isomeric ratios with abrasion-ablation model combined with sharp cutoff model.

RADIOACTIVITY 90Mo, 92Rh, 96Ag(IT) [from 9Be(124Xe, X), E=345 MeV/nucleon]; measured reaction products, Eγ, Iγ, γγ-coin; deduced levels, J, π, T1/2.

doi: 10.5506/aphyspolb.50.431
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2019IC02      Nat.Phys. 15, 321 (2019)

Y.Ichikawa, H.Nishibata, Y.Tsunoda, A.Takamine, K.Imamura, T.Fujita, T.Sato, S.Momiyama, Y.Shimizu, D.S.Ahn, K.Asahi, H.Baba, D.L.Balabanski, F.Boulay, J.M.Daugas, T.Egami, N.Fukuda, C.Funayama, T.Furukawa, G.Georgiev, A.Gladkov, N.Inabe, Y.Ishibashi, T.Kawaguchi, T.Kawamura, Y.Kobayashi, S.Kojima, A.Kusoglu, I.Mukul, M.Niikura, T.Nishizaka, A.Odahara, Y.Ohtomo, T.Otsuka, D.Ralet, G.S.Simpson, T.Sumikama, H.Suzuki, H.Takeda, L.C.Tao, Y.Togano, D.Tominaga, H.Ueno, H.Yamazaki, X.F.Yang

Interplay between nuclear shell evolution and shape deformation revealed by the magnetic moment of 75Cu

NUCLEAR REACTIONS 27Al(76Zn, p)75Cu, E<345 MeV/nucleon; 9Be(238U, X)76Zn, E= 345 MeV/nucleon; measured reaction products, Eγ, Iγ. 75Cu; deduced γ-ray energies, J, π, nuclear magnetic moment. Comparison with theoretical calculations, systematics.

doi: 10.1038/s41567-018-0410-7
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2019LI10      Phys.Rev.Lett. 122, 072502 (2019)

H.N.Liu, A.Obertelli, P.Doornenbal, C.A.Bertulani, G.Hagen, J.D.Holt, G.R.Jansen, T.D.Morris, A.Schwenk, R.Stroberg, N.Achouri, H.Baba, F.Browne, D.Calvet, F.Chateau, S.Chen, N.Chiga, A.Corsi, M.L.Cortes, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, C.Hilaire, T.Isobe, T.Kobayashi, Y.Kubota, V.Lapoux, T.Motobayashi, I.Murray, H.Otsu, V.Panin, N.Paul, W.Rodriguez, H.Sakurai, M.Sasano, D.Steppenbeck, L.Stuhl, Y.L.Sun, Y.Togano, T.Uesaka, K.Wimmer, K.Yoneda, O.Aktas, T.Aumann, L.X.Chung, F.Flavigny, S.Franchoo, I.Gasparic, R.-B.Gerst, J.Gibelin, K.I.Hahn, D.Kim, T.Koiwai, Y.Kondo, P.Koseoglou, J.Lee, C.Lehr, B.D.Linh, T.Lokotko, M.MacCormick, K.Moschner, T.Nakamura, S.Y.Park, D.Rossi, E.Sahin, D.Sohler, P.-A.Soderstrom, S.Takeuchi, H.Tornqvist, V.Vaquero, V.Wagner, S.Wang, V.Werner, X.Xu, H.Yamada, D.Yan, Z.Yang, M.Yasuda, L.Zanetti

How Robust is the N=34 Subshell Closure? First Spectroscopy of 52Ar

NUCLEAR REACTIONS 1H(53K, 2p), E=245 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, σ. Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.122.072502
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2019LU08      Phys.Rev.Lett. 122, 222502 (2019)

D.Lubos, J.Park, T.Faestermann, R.Gernhauser, R.Krucken, M.Lewitowicz, S.Nishimura, H.Sakurai, D.S.Ahn, H.Baba, B.Blank, A.Blazhev, P.Boutachkov, F.Browne, I.Celikovic, G.de France, P.Doornenbal, Y.Fang, N.Fukuda, J.Giovinazzo, N.Goel, M.Gorska, S.Ilieva, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, Y.K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, G.Lorusso, K.Moschner, D.Murai, I.Nishizuka, Z.Patel, M.M.Rajabali, S.Rice, H.Schaffner, Y.Shimizu, L.Sinclair, P.-A.Soderstrom, K.Steiger, T.Sumikama, H.Suzuki, H.Takeda, Z.Wang, N.Warr, H.Watanabe, J.Wu, Z.Xu

Improved Value for the Gamow-Teller Strength of the 100Sn Beta Decay

RADIOACTIVITY 100Sn(β+) [from 9Be(124Xe, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ, Eβ, Iβ; deduced Gamow-Teller Strength, Q-value, T1/2. Comparison with available data.

doi: 10.1103/PhysRevLett.122.222502
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2019MU03      Phys.Rev. C 99, 011302 (2019)

I.Murray, M.MacCormick, D.Bazin, P.Doornenbal, N.Aoi, H.Baba, H.Crawford, P.Fallon, K.Li, J.Lee, M.Matsushita, T.Motobayashi, T.Otsuka, H.Sakurai, H.Scheit, D.Steppenbeck, S.Takeuchi, J.A.Tostevin, N.Tsunoda, Y.Utsuno, H.Wang, K.Yoneda

Spectroscopy of strongly deformed 32Ne by proton knockout reactions

NUCLEAR REACTIONS 9Be(33Na, 32Ne), (34Mg, 32Ne), E=235, 221 MeV/nucleon; measured reaction products, Eγ, Iγ, γγ-coin, time of flight and energy loss, σ for one- and two-proton knockout reactions populating levels in 32Ne using the ZeroDegree spectrometer for particle identification and the DALI2 array for γ detection at the RIKEN-RIBF facility. 32Ne; deduced first 2+ and 4+ levels, configuration, E(first 4+)/E(first 2+) ratio. Systematics of energies of the first 2+ and 4+ levels in 26,28,30,32,34,36Ne, 28,30,32,34,36,38Mg, 30,32,34,36,38,40Si. Systematics of cross sections of two-proton knockout reactions for residues of 26,28,30,32Ne. Comparison of experimental inclusive and exclusive reaction cross sections with shell-model and eikonal reaction dynamical calculations.

doi: 10.1103/PhysRevC.99.011302
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2019PA16      Phys.Rev. C 99, 034313 (2019)

J.Park, R.Krucken, D.Lubos, R.Gernhauser, M.Lewitowicz, S.Nishimura, D.S.Ahn, H.Baba, B.Blank, A.Blazhev, P.Boutachkov, F.Browne, I.Celikovic, G.de France, P.Doornenbal, T.Faestermann, Y.Fang, N.Fukuda, J.Giovinazzo, N.Goel, M.Gorska, H.Grawe, S.Ilieva, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, G.Lorusso, K.Moschner, D.Murai, I.Nishizuka, Z.Patel, M.M.Rajabali, S.Rice, H.Sakurai, H.Schaffner, Y.Shimizu, L.Sinclair, P.-A.Soderstrom, K.Steiger, T.Sumikama, H.Suzuki, H.Takeda, Z.Wang, H.Watanabe, J.Wu, Z.Y.Xu

New and comprehensive β- and βp-decay spectroscopy results in the vicinity of 100Sn

RADIOACTIVITY 87,88,88mTc, 88,89,91,91mRu, 90,90m,91,91m,92,92mRh, 92,93,94,95,95mPd, 94,94m,95,96,96mAg, 96,96m,97,97m,98,99Cd, 98,98m,99,100,101In, 101Sn(β+), (β+p)[from 9Be(124Xe, X), E=345 MeV/nucleon]; measured Eγ, Iγ, γγ- and βγ-coin, β+p spectra, half-lives of ground states and isomers from β decay βγ-coin, and βp decay curves, Q(β+), and %b+p branching ratios using the WAS3ABi double-sided silicon strip detector array for β+ detection and the Euroball-RIKEN Cluster Array for γ detection at RIKEN Nishina Center. 88Mo, 88,89,91Tc, 90,91,92Ru, 92,93,94Rh, 95,96Pd, 96,97Ag, 98Cd; deduced levels, J , π, multipolarities, β feedings and logft. Comparison with Serduke-Lawson-Gloeckner empirical shell model in proton and neutron p1/2 and g9/2 model space below 100Sn core.

NUCLEAR REACTIONS 9Be(124Xe, X)87Ru/88Ru/89Ru/90Ru/91Ru/92Ru/93Ru/90Rh/91Rh/92Rh/93Rh/94Rh/95Rh/91Pd/92Pd/93Pd/94Pd/95Pd/96Pd/97Pd/93Ag/94Ag/95Ag/96Ag/97Ag/98Ag/95Cd/96Cd/97Cd/98Cd/99Cd/97In/98In/99In/100In/99Sn/100Sn/101Sn, E=345 MeV/nucleon; measured yields, particle identification plot using BigRIPS and the ZeroDegree spectrometers, Bρ-TOF-ΔE technique with position-sensitive parallel-plate avalanche counters, plastic scintillators and gas-filled ionization chamber at RIBF-RIKEN facility.

doi: 10.1103/PhysRevC.99.034313
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2019PA25      Phys.Rev.Lett. 122, 162503 (2019)

N.Paul, A.Obertelli, C.A.Bertulani, A.Corsi, P.Doornenbal, J.L.Rodriguez-Sanchez, G.Authelet, H.Baba, D.Calvet, F.Chateau, S.Chen, A.Delbart, J.-M.Gheller, A.Giganon, A.Gillibert, T.Isobe, V.Lapoux, M.Matsushita, S.Momiyama, T.Motobayashi, M.Niikura, H.Otsu, C.Peron, A.Peyaud, E.C.Pollacco, J.-Y.Rousse, H.Sakurai, C.Santamaria, M.Sasano, Y.Shiga, D.Steppenbeck, S.Takeuchi, R.Taniuchi, T.Uesaka, H.Wang, K.Yoneda, T.Ando, T.Arici, A.Blazhev, F.Browne, A.M.Bruce, R.Carroll, L.X.Chung, M.L.Cortes, M.Dewald, B.Ding, Zs.Dombradi, F.Flavigny, S.Franchoo, F.Giacoppo, M.Gorska, A.Gottardo, K.Hadynska-Klek, Z.Korkulu, S.Koyama, Y.Kubota, A.Jungclaus, J.Lee, M.Lettmann, B.D.Linh, J.Liu, Z.Liu, C.Lizarazo, C.Louchart, R.Lozeva, K.Matsui, T.Miyazaki, K.Moschner, S.Nagamine, N.Nakatsuka, C.Nita, S.Nishimura, C.R.Nobs, L.Olivier, S.Ota, Z.Patel, Zs.Podolyak, M.Rudigier, E.Sahin, T.Y.Saito, C.Shand, P.-A.Soderstrom, I.G.Stefan, T.Sumikama, D.Suzuki, R.Orlandi, V.Vaquero, Zs.Vajta, V.Werner, K.Wimmer, J.Wu, Z.Xu

Prominence of Pairing in Inclusive (p, 2p) and (p, pn) Cross Sections from Neutron-Rich Nuclei

NUCLEAR REACTIONS 1H(96Kr, np)95Kr, E ∼ 250 MeV/nucleon; analyzed available data for fifty-five inclusive single nucleon-removal σ; deduced systematically higher cross sections are found for proton removal from nuclei with an even number of protons as compared to odd-proton number projectiles for a given neutron separation energy.

doi: 10.1103/PhysRevLett.122.162503
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2019PH02      Phys.Rev. C 100, 011302 (2019)

V.H.Phong, G.Lorusso, T.Davinson, A.Estrade, O.Hall, J.Liu, K.Matsui, F.Montes, S.Nishimura, A.Boso, P.H.Regan, R.Shearman, Z.Y.Xu, J.Agramunt, J.M.Allmond, D.S.Ahn, A.Algora, H.Baba, N.T.Brewer, C.G.Bruno, R.Caballero-Folch, F.Calvino, M.Wolinska-Cichocka, G.Cortes, I.Dillmann, C.Domingo-Pardo, A.Gargano, S.Go, C.J.Griffin, R.K.Grzywacz, L.Harkness-Brennan, T.Isobe, A.Jungclaus, D.Kahl, L.H.Khiem, G.Kiss, A.Korgul, S.Kubono, K.Miernik, A.I.Morales, N.Nepal, M.Piersa, Zs.Podolyak, B.C.Rasco, K.P.Rykaczewski, H.Sakurai, Y.Shimizu, D.W.Stacener, T.Sumikama, H.Suzuki, H.Takeda, J.L.Tain, A.Tarifeno-Saldivia, A.Tolosa-Delgado, V.Vaquero, P.J.Woods, R.Yokoyama, C.Yuan

Observation of a 13449In85 Proton-neutron coupling "southeast" of 13250Sn82

NUCLEAR REACTIONS 9Be(238U, F)120Rh/121Rh/122Rh/123Rh/124Rh/125Rh/123Pd/124Pd/125Pd/126Pd/127Pd/128Pd/125Ag/126Ag/127Ag/128Ag/129Ag/130Ag/128Cd/129Cd/130Cd/131Cd/132Cd/133Cd/131In/132In/133In/134In/135In/136In/134Sn/135Sn/136Sn/137Sn/138Sn/139Sn/138Sb/139Sb/140Sb/141Te/142Te, E=345 MeV/nucleon; measured fission fragment yields, A/Q plot, Eγ, Iγ, (fragment)γ-coin, half-lives of isomers in 128Cd and 134In by (ion)γ(t) using BigRIPS, ZeroDegree spectrometer, and AIDA array for fragment separation and identification, and HPGe detectors for γ detection at RIBF-RIKEN. 128Cd, 130Ag, 132,134In; measured (ion)γ-coin spectra; deduced isomers in 128Cd and 134In, configurations, no evidence for isomers in 130Ag and 132In. 134In; compared Weisskopf estimated half-lives for E1, M1, E2 and M2 multipolarities for the isomeric transition in the case of bare nuclei and neutral atoms with the measured half-life, best agreement found for E2 multipolarity. 130Ag, 132,134In; calculated levels, J, π using shell model, and compared with available experimental data.

doi: 10.1103/PhysRevC.100.011302
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2019RE11      Acta Phys.Pol. B50, 669 (2019)

F.Recchia, K.Wimmer, S.M.Lenzi, S.Riccetto, T.Davinson, A.Estrade, C.Griffin, S.Nishimura, F.Nowacki, V.Phong, A.Poves, P.-A.Soderstrom, O.Aktas, M.Alaqueel, T.Ando, H.Baba, S.Bae, S.Choi, P.Doornenbal, J.Ha, L.Harkness-Brennan, T.Isobe, P.R.John, D.Kahl, G.Kiss, M.Labiche, K.Matsui, S.Momiyama, D.R.Napoli, M.Niikura, C.Nita, Y.Saito, H.Sakurai, P.Schrock, C.Stahl, T.Sumikama, V.Werner, W.Witt

Isomer Spectroscopy in Odd-Even Ti Isotopes: Approaching N=40

NUCLEAR REACTIONS 9Be(238U, X), E=345 MeV/nucleon; measured reaction products, Eγ, Iγ, γγ-coin. 55,57,59Ti; deduced levels, J, π. 59Ti; deduced T1/2 for isomeric state. Comparison with large-scale shell model calculations. BigRIPS and ZeroDegree spectrometers, AIDA and EURICA arrays at RIBF-RIKEN facility.

doi: 10.5506/aphyspolb.50.669
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2019SI33      Phys.Rev. C 100, 044311 (2019)

L.Sinclair, R.Wadsworth, J.Dobaczewski, A.Pastore, G.Lorusso, H.Suzuki, D.S.Ahn, H.Baba, F.Browne, P.J.Davies, P.Doornenbal, A.Estrade, Y.Fang, N.Fukuda, J.Henderson, T.Isobe, D.G.Jenkins, S.Kubono, Z.Li, D.Lubos, S.Nishimura, I.Nishizuka, Z.Patel, S.Rice, H.Sakurai, Y.Shimizu, P.Schury, H.Takeda, P.-A.Soderstrom, T.Sumikama, H.Watanabe, V.Werner, J.Wu, Z.Y.Xu

Half-lives of 73Sr and 76Y and the consequences for the proton dripline

NUCLEAR REACTIONS 9Be(124Xe, X)67As/68As/69As/70As/68Se/69Se/70Se/71Se/72Se/70Br/71Br/72Br/73Br/71Kr/72Kr/73Kr/74Kr/73Sr/74Sr/75Sr/74Rb/75Rb/76Y, E=345 MeV/nucleon; measured reaction products, yields, particle identification spectra A/Q versus Z using, β and γ radiation using BigRIPS and the Zerodegree spectrometer (ZDS) for the identification of ions by Z and A/Q through the ΔE-Bρ-TOF method, and β-counting system WAS3ABi with the γ-ray detection array EURICA at RIBF-RIKEN facility. 70Br, 71Kr, 73,74Sr, 75Sr, 74,75Rb, 76Y; measured half-lives of the decays of the ground states, and compared with available literature values; deduced proton drip line. 73Sr, 76Y; identified new isotopes. 72Rb, 76Y; calculated neutron and proton single-particle levels and deformation energies as functions of deformation β calculated using Skyrme functional UNEDF0; discussed prominent proton decay mode for 72Rb in contrast to mainly β+ decay for 76Y, configurations.

doi: 10.1103/PhysRevC.100.044311
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2019TA10      Nature(London) 569, 53 (2019)

R.Taniuchi, C.Santamaria, P.Doornenbal, A.Obertelli, K.Yoneda, G.Authelet, H.Baba, D.Calvet, F.Chateau, A.Corsi, A.Delbart, J.-M.Gheller, A.Gillibert, J.D.Holt, T.Isobe, V.Lapoux, M.Matsushita, J.Menendez, S.Momiyama, T.Motobayashi, M.Niikura, F.Nowacki, K.Ogata, H.Otsu, T.Otsuka, C.Péron, S.Peru, A.Peyaud, E.C.Pollacco, A.Poves, J.-Y.Rousse, H.Sakurai, A.Schwenk, Y.Shiga, J.Simonis, S.R.Stroberg, S.Takeuchi, Y.Tsunoda, T.Uesaka, H.Wang, F.Browne, L.X.Chung, Z.Dombradi, S.Franchoo, F.Giacoppo, A.Gottardo, K.Hadynska-Klek, Z.Korkulu, S.Koyama, Y.Kubota, J.Lee, M.Lettmann, C.Louchart, R.Lozeva, K.Matsui, T.Miyazaki, S.Nishimura, L.Olivier, S.Ota, Z.Patel, E.Sahin, C.Shand, P.-A.Soderstrom, I.Stefan, D.Steppenbeck, T.Sumikama, D.Suzuki, Z.Vajta, V.Werner, J.Wu, Z.Y.Xu

78Ni revealed as a doubly magic stronghold against nuclear deformation

NUCLEAR REACTIONS 1H(79Cu, 2p), (80Zn, 3p)78Ni, E ∼ 250 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced partial σ, energy levels, J, π, magic nature. Comparison with theoretical calculations.

doi: 10.1038/s41586-019-1155-x
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2019VA03      Phys.Rev. C 99, 034306 (2019)

V.Vaquero, A.Jungclaus, P.Doornenbal, K.Wimmer, A.M.Moro, K.Ogata, T.Furumoto, S.Chen, E.Nacher, E.Sahin, Y.Shiga, D.Steppenbeck, R.Taniuchi, Z.Y.Xu, T.Ando, H.Baba, F.L.Bello Garrote, S.Franchoo, K.Hadynska-Klek, A.Kusoglu, J.Liu, T.Lokotko, S.Momiyama, T.Motobayashi, S.Nagamine, N.Nakatsuka, M.Niikura, R.Orlandi, T.Y.Saito, H.Sakurai, P.A.Soderstrom, G.M.Tveten, Zs.Vajta, M.Yalcinkaya

In-beam γ-ray spectroscopy of 136Te at relativistic energies

NUCLEAR REACTIONS C, 197Au(136Te, 136Te'), C(137Te, 136Te), E=139, 140 MeV/nucleon, [secondary 136,137Te beam from 9Be(238U, F), E=345 MeV/nucleon primary reaction]; measured Eγ, Iγ, γγ-coin, σ(θ), exclusive σ following Coulomb excitation to individual excited states using the DALI2 spectrometer array for γ detection, and the BigRIPS and ZeroDegree spectrometers for beam and product identification, respectively at RIBF-RIKEN facility. 136Te; deduced levels, J, π, B(E2) values. Comparison with theoretical predictions, and with previous experimental results. Systematics of B(E2) values for the first 2+ states in 132,134,136Te.

doi: 10.1103/PhysRevC.99.034306
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2019VA07      Phys.Lett. B 795, 356 (2019)

V.Vaquero, A.Jungclaus, J.L.Rodriguez-Sanchez, J.A.Tostevin, P.Doornenbal, K.Wimmer, S.Chen, E.Nacher, E.Sahin, Y.Shiga, D.Steppenbeck, R.Taniuchi, Z.Y.Xu, T.Ando, H.Baba, F.L.Bello Garrote, S.Franchoo, A.Gargano, K.Hadynska-Klek, A.Kusoglu, J.Liu, T.Lokotko, S.Momiyama, T.Motobayashi, S.Nagamine, N.Nakatsuka, M.Niikura, R.Orlandi, T.Saito, H.Sakurai, P.A.Soderstrom, G.M.Tveten, Zs.Vajta, M.Yalcinkaya

Inclusive cross sections for one- and multi-nucleon removal from Sn, Sb, and Te projectiles beyond the N=82 shell closure

NUCLEAR REACTIONS C(136Te, n), (136Te, 2n), (136Te, 3n), (136Te, 4n), (136Te, 5n), (136Te, 6n), (134Sn, p), E=138-145 MeV/nucleon; measured reaction products; deduced σ. Comparison with two different versions of the Liege intranuclear cascade model (INCL).

doi: 10.1016/j.physletb.2019.06.035
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2019WA14      Phys.Lett. B 792, 263 (2019)

H.Watanabe, H.K.Wang, G.Lorusso, S.Nishimura, Z.Y.Xu, T.Sumikama, P.-A.Soderstrom, P.Doornenbal, F.Browne, G.Gey, H.S.Jung, J.Taprogge, Zs.Vajta, J.Wu, A.Yagi, H.Baba, G.Benzoni, K.Y.Chae, F.C.L.Crespi, N.Fukuda, R.Gernhauser, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.K.Kim, I.Kojouharov, F.G.Kondev, T.Kubo, N.Kurz, Y.K.Kwon, G.J.Lane, Z.Li, C.-B.Moon, A.Montaner-Piza, K.Moschner, F.Naqvi, M.Niikura, H.Nishibata, D.Nishimura, A.Odahara, R.Orlandi, Z.Patel, Zs.Podolyak, H.Sakurai, H.Schaffner, G.S.Simpson, K.Steiger, Y.Sun, H.Suzuki, H.Takeda, A.Wendt, K.Yoshinaga

New isomers in 125Pd79 and 127Pd81: Competing proton and neutron excitations in neutron-rich palladium nuclides towards the N=82 shell closure

RADIOACTIVITY 125,127Pd(IT) [from Be(238U, X)125Pd/127Pd, E=345 MeV/nucleon;] ; measured decay products, Eγ, Iγ; deduced γ-ray energies, intensities, T1/2. Comparison with shell model calculations.

doi: 10.1016/j.physletb.2019.03.053
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2019WI04      Phys.Lett. B 792, 16 (2019)

K.Wimmer, F.Recchia, S.M.Lenzi, S.Riccetto, T.Davinson, A.Estrade, C.J.Griffin, S.Nishimura, F.Nowacki, V.Phong, A.Poves, P.-A.Soderstrom, O.Aktas, M.Al-Aqeel, T.Ando, H.Baba, S.Bae, S.Choi, P.Doornenbal, J.Ha, L.Harkness-Brennan, T.Isobe, P.R.John, D.Kahl, G.Kiss, I.Kojouharov, N.Kurz, M.Labiche, K.Matsui, S.Momiyama, D.R.Napoli, M.Niikura, C.Nita, Y.Saito, H.Sakurai, H.Schaffner, P.Schrock, C.Stahl, T.Sumikama, V.Werner, W.Witt, P.J.Woods

First spectroscopy of 61Ti and the transition to the Island of Inversion at N=40

NUCLEAR REACTIONS 9Be(238U, X), E=345 MeV/nucleon; measured yields of reaction products with Z=21-26 and A/Q=2.55 to 2.82, Eγ, Iγ, γγ-coin, half-lives of isomers by γ(t) method using BigRIPS and ZeroDegree spectrometers, AIDA and EURICA arrays at RIBF-RIKEN facility. 59,61Ti; deduced levels, isomers, J, π, multipolarity, B(E2), B(M2), evidence for island of inversion at N=40. 59Ti; deduced only one β-decaying state from half-life measurement. Comparison with large-scale shell model calculations.

NUCLEAR STRUCTURE 57,59,61Ti; calculated levels, J, π using large-scale shell model with LNPS and LNPS-fp interactions. Comparison with experimental values.

doi: 10.1016/j.physletb.2019.03.018
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2019WI08      Phys.Lett. B 795, 266 (2019)

K.Wimmer, P.Doornenbal, W.Korten, P.Aguilera, A.Algora, T.Ando, T.Arici, H.Baba, B.Blank, A.Boso, S.Chen, A.Corsi, P.Davies, G.de Angelis, G.de France, D.T.Doherty, J.Gerl, R.Gernhauser, D.G.Jenkins, S.Koyama, T.Motobayashi, S.Nagamine, M.Niikura, A.Obertelli, D.Lubos, B.Rubio, E.Sahin, T.Y.Saito, H.Sakurai, L.Sinclair, D.Steppenbeck, R.Taniuchi, R.Wadsworth, M.Zielinska

Discovery of 68Br in secondary reactions of radioactive beams

NUCLEAR REACTIONS 9Be(70Kr, X), (71Kr, X), (72Kr, X), (70Br, X)68Br, E=170 MeV/nucleon; measured reaction products; deduced yields, σ, T1/2.

doi: 10.1016/j.physletb.2019.06.014
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2019YO03      Phys.Rev. C 100, 031302(R) (2019)

R.Yokoyama, R.Grzywacz, B.C.Rasco, N.Brewer, K.P.Rykaczewski, I.Dillmann, J.L.Tain, S.Nishimura, D.S.Ahn, A.Algora, J.M.Allmond, J.Agramunt, H.Baba, S.Bae, C.G.Bruno, R.Caballero-Folch, F.Calvino, P.J.Coleman-Smith, G.Cortes, T.Davinson, C.Domingo-Pardo, A.Estrade, N.Fukuda, S.Go, C.J.Griffin, J.Ha, O.Hall, L.J.Harkness-Brennan, J.Heideman, T.Isobe, D.Kahl, M.Karny, T.Kawano, L.H.Khiem, T.T.King, G.G.Kiss, A.Korgul, S.Kubono, M.Labiche, I.Lazarus, J.Liang, J.Liu, G.Lorusso, M.Madurga, K.Matsui, K.Miernik, F.Montes, A.I.Morales, P.Morrall, N.Nepal, R.D.Page, V.H.Phong, M.Piersa, M.Prydderch, V.F.E.Pucknell, M.M.Rajabali, B.Rubio, Y.Saito, H.Sakurai, Y.Shimizu, J.Simpson, M.Singh, D.W.Stracener, T.Sumikama, R.Surman, H.Suzuki, H.Takeda, A.Tarifeno-Saldivia, S.L.Thomas, A.Tolosa-Delgado, M.Wolinska-Cichocka, P.J.Woods, X.X.Xu

Strong one-neutron emission from two-neutron unbound states in β decays of the r-process nuclei 86, 87Ga

RADIOACTIVITY 84,85,86,87Ga(β-), (β-n), (β-2n)[from 9Be(238U, F), E=345 MeV/nucleon, followed by separation and identification of fragments using the BigRIPS in-flight separator at RIBF-RIKEN facility]; measured secondary ions implanted into active stoppers made of double-sided silicon-strip detectors (DSSSDs), neutrons by BRIKEN array of 3He counters, WAS3ABi for β and ion detection, and γ rays by two clover-type HPGe detectors, (ions)βn-coin, half-lives of decays of 84,85,86,87Ga; deduced decay curves, %β-n (P1n) and %β-2n (P2n). Comparison with shell-model and QRPA calculations. Relevance to r-process modeling.

doi: 10.1103/PhysRevC.100.031302
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2019ZH49      Phys.Lett. B 799, 135036 (2019)

G.X.Zhang, H.Watanabe, G.D.Dracoulis, F.G.Kondev, G.J.Lane, P.H.Regan, P.-A.Soderstrom, P.M.Walker, K.Yoshida, H.Kanaoka, Z.Korkulu, P.S.Lee, J.J.Liu, S.Nishimura, J.Wu, A.Yagi, D.S.Ahn, T.Alharbi, H.Baba, F.Browne, A.M.Bruce, M.P.Carpenter, R.J.Carroll, K.Y.Chae, C.J.Chiara, Zs.Dombradi, P.Doornenbal, A.Estrade, N.Fukuda, C.Griffin, E.Ideguchi, N.Inabe, T.Isobe, S.Kanaya, I.Kojouharov, T.Kubo, S.Kubono, N.Kurz, I.Kuti, S.Lalkovski, T.Lauritsen, C.S.Lee, E.J.Lee, C.J.Lister, G.Lorusso, G.Lotay, E.A.McCutchan, C.-B.Moon, I.Nishizuka, C.R.Nita, A.Odahara, Z.Patel, V.H.Phong, Zs.Podolyak, O.J.Roberts, H.Sakurai, H.Schaffner, D.Seweryniak, C.M.Shand, Y.Shimizu, T.Sumikama, H.Suzuki, H.Takeda, S.Terashima, Zs.Vajta, J.J.Valiente-Dobon, Z.Y.Xu, S.Zhu

Interplay of quasiparticle and vibrational excitations: First observation of isomeric states in 168Dy and 169Dy

RADIOACTIVITY 168,169Dy(β-) [from be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ, X-rays; deduced level energies, J, π, B(E2), isomer T1/2. Comparison with deformed QRPA and multi-quasiparticle calculations.

doi: 10.1016/j.physletb.2019.135036
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2018CO06      Phys.Rev. C 97, 044315 (2018)

M.L.Cortes, P.Doornenbal, M.Dupuis, S.M.Lenzi, F.Nowacki, A.Obertelli, S.Peru, N.Pietralla, V.Werner, K.Wimmer, G.Authelet, H.Baba, D.Calvet, F.Chateau, A.Corsi, A.Delbart, J.-M.Gheller, A.Gillibert, T.Isobe, V.Lapoux, C.Louchart, M.Matsushita, S.Momiyama, T.Motobayashi, M.Niikura, H.Otsu, C.Peron, A.Peyaud, E.C.Pollacco, J.-Y.Rousse, H.Sakurai, C.Santamaria, M.Sasano, Y.Shiga, S.Takeuchi, R.Taniuchi, T.Uesaka, H.Wang, K.Yoneda, F.Browne, L.X.Chung, Zs.Dombradi, S.Franchoo, F.Giacoppo, A.Gottardo, K.Hadynska-Klek, Z.Korkulu, S.Koyama, Y.Kubota, J.Lee, M.Lettmann, R.Lozeva, K.Matsui, T.Miyazaki, S.Nishimura, L.Olivier, S.Ota, Z.Patel, E.Sahin, C.M.Shand, P-A.Soderstrom, I.Stefan, D.Steppenbeck, T.Sumikama, D.Suzuki, Zs.Vajta, J.Wu, Z.Xu

Inelastic scattering of neutron-rich Ni and Zn isotopes off a proton target

NUCLEAR REACTIONS 1H(72Ni, p'), E=271.0 MeV/nucleon; 1H(74Ni, p'), E=263.5 MeV/nucleon; 1H(76Zn, p'), E=275.5 MeV/nucleon; 1H(80Zn, p'), E=263.4 MeV/nucleon, [secondary 72,74Ni, 76,80Zn beams from 9Be(238U, X), E=345 MeV/nucleon primary reaction, followed by separation of fragments using BigRIPS separator]; measured reaction products, yields, Eγ, Iγ, particles, (particle)γ-coin, angular integrated proton inelastic scattering σ using MINOS target device, DALI2 array for γ detection and ZeroDegree spectrometer for particles at RIBF-RIKEN facility. 72,74Ni, 76,80Zn; deduced first 2+ and 4+ levels, and second 2+ levels in 72,74Ni; analyzed B(E2) values and matrix elements for the first 2+ states. Comparison with shell-model calculations, and with previous measurements. Systematics of β2 deformation parameters in 62Zn to 80Zn, and 54Ni to 74Ni isotopes. Comparison of experimental σ for inelastic scattering with calculations using Jeukenne-Lejeune-Mahaux (JLM) folding model with quasiparticle random-phase approximation (QRPA). 58Ni(p, p), E=295, 250, 333 MeV; 58Ni(p, p'), E=178 MeV; analyzed σ(θ) data using the JLM reaction model and KD02 potential.

doi: 10.1103/PhysRevC.97.044315
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2018CO07      Phys.Rev. C 97, 044321 (2018)

A.Corsi, A.Obertelli, P.Doornenbal, F.Nowacki, H.Sagawa, Y.Tanimura, N.Aoi, H.Baba, P.Bednarczyk, S.Boissinot, M.Ciemala, A.Gillibert, T.Isobe, A.Jungclaus, V.Lapoux, J.Lee, K.Matsui, M.Matsushita, T.Motobayashi, D.Nishimura, S.Ota, E.Pollacco, H.Sakurai, C.Santamaria, Y.Shiga, D.Sohler, D.Steppenbeck, S.Takeuchi, R.Taniuchi, H.Wang

Spectroscopy of nuclei around 100Sn populated via two-neutron knockout reactions

NUCLEAR REACTIONS 1H, C(104Sn, 2n), E=150 MeV/nucleon; 1H, C(102Cd, 2n), E=144 MeV/nucleon, [secondary 104Sn and 102Cd beams from 9Be(124Xe, X), E=345 MeV/nucleon primary reaction, followed by separation of fragments using BigRIPS separator]; 1H, C(112Sn, 2n), E=170 MeV/nucleon; measured Eγ, Iγ, particles, (particle)γ-coin, two-neutron knockout σ using carbon and CH2 targets, DALI2 array for γ detection and ZeroDegree spectrometer for particles at RIBF-RIKEN facility. 100Cd, 102,110Sn; deduced first and second 2+ levels in 102Sn, first 2+ and 4+ levels in 100Cd, and first three excited states in 110Sn. Comparison with shell-model calculations, and with previous measurements. Systematics of energies of first and second 2+ states in 102Sn to 120Sn isotopes.

doi: 10.1103/PhysRevC.97.044321
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Data from this article have been entered in the XUNDL database. For more information, click here.


2018FU08      J.Phys.Soc.Jpn. 87, 014202 (2018)

N.Fukuda, T.Kubo, D.Kameda, N.Inabe, H.Suzuki, Y.Shimizu, H.Takeda, K.Kusaka, Y.Yanagisawa, M.Ohtake, K.Tanaka, K.Yoshida, H.Sato, H.Baba, M.Kurokawa, T.Ohnishi, N.Iwasa, A.Chiba, T.Yamada, E.Ideguchi, S.Go, R.Yokoyama, T.Fujii, H.Nishibata, K.Ieki, D.Murai, S.Momota, D.Nishimura, Y.Sato, J.Hwang, S.Kim, O.B.Tarasov, D.J.Morrissey, G.Simpson

Identification of New Neutron-Rich Isotopes in the Rare-Earth Region Produced by 345 MeV/nucleon 238U

NUCLEAR REACTIONS 9Be(238U, F)153Ba/154Ba/154La/155La/156La/156Ce/157Ce/158Ce/156Pr/157Pr/158Pr/159Pr/160Pr/161Pr/162Nd/163Nd/164Pm/165Pm/166Sm/167Sm/168Sm/169Eu/171Gd/172Gd/173Tb/174Tb/175Dy/176Dy/177Ho/178Ho/179Er/180Er, E=345 MeV/nucleon; measured reaction products, A/Q spectra, and production cross sections for 29 new neutron-rich isotopes using BigRIPS spectrometer at RIBF-RIKEN facility.

doi: 10.7566/JPSJ.87.014202
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2561. Data from this article have been entered in the XUNDL database. For more information, click here.


2018LE18      Phys.Rev.Lett. 121, 262502 (2018)

S.Leblond, F.M.Marques, J.Gibelin, N.A.Orr, Y.Kondo, T.Nakamura, J.Bonnard, N.Michel, N.L.Achouri, T.Aumann, H.Baba, F.Delaunay, Q.Deshayes, P.Doornenbal, N.Fukuda, J.W.Hwang, N.Inabe, T.Isobe, D.Kameda, D.Kanno, S.Kim, N.Kobayashi, T.Kobayashi, T.Kubo, J.Lee, R.Minakata, T.Motobayashi, D.Murai, T.Murakami, K.Muto, T.Nakashima, N.Nakatsuka, A.Navin, S.Nishi, S.Ogoshi, H.Otsu, H.Sato, Y.Satou, Y.Shimizu, H.Suzuki, K.Takahashi, H.Takeda, S.Takeuchi, R.Tanaka, Y.Togano, A.G.Tuff, M.Vandebrouck, K.Yoneda

First Observation of 20B and 21B

NUCLEAR REACTIONS 12C(22N, 2p)20B, E=225 MeV/nucleon; 12C(22C, p)21B, E=233 MeV/nucleon; measured reaction products; deduced energy levels, J, π, one- and two-neutron separation energies. Comparison with shell model calculations.

doi: 10.1103/PhysRevLett.121.262502
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2018LI46      Phys.Lett. B 784, 392 (2018)

X.Y.Liu, Z.Liu, B.Ding, P.Doornenbal, A.Obertelli, S.M.Lenzi, P.M.Walker, L.X.Chung, B.D.Linh, G.Authelet, H.Baba, D.Calvet, F.Chateau, A.Corsi, A.Delbart, J.-M.Gheller, A.Gillibert, T.Isobe, V.Lapoux, M.Matsushita, S.Momiyama, T.Motobayashi, M.Niikura, F.Nowacki, H.Otsu, C.Peron, A.Peyaud, E.C.Pollacco, J.-Y.Rousse, H.Sakurai, M.Sasano, Y.Shiga, S.Takeuchi, R.Taniuchi, T.Uesaka, H.Wang, K.Yoneda, Y.H.Lam, T.H.Huang, M.D.Sun, W.Q.Zhang, H.Y.Lu, D.S.Hou, F.Browne, Zs.Dombradi, S.Franchoo, F.Giacoppo, A.Gottardo, K.Hadynska-Klek, Z.Korkulu, S.Koyama, Y.Kubota, J.Lee, M.Lettmann, R.Lozeva, K.Matsui, T.Miyazaki, S.Nishimura, C.Louchart, L.Olivier, S.Ota, Z.Patel, E.Sahin, C.Santamaria, C.Shand, P.-A.Soderstrom, G.L.Stefan, D.Steppenbeck, T.Sumikama, D.Suzuki, Zs.Vajta, V.Werner, J.Wu, Z.Xu, X.H.Zhou, Y.H.Zhang, H.S.Xu, F.S.Zhang

Spectroscopy of 65, 6725Mn: Strong coupling in the N=40 "island of inversion"

NUCLEAR REACTIONS 1H(68Fe, X)63Mn/65Mn/67Mn, E=260 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π. Comparison with shell model predictions.

doi: 10.1016/j.physletb.2018.06.067
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2018MI08      Phys.Rev.Lett. 121, 022506 (2018)

S.Michimasa, M.Kobayashi, Y.Kiyokawa, S.Ota, D.S.Ahn, H.Baba, G.P.A.Berg, M.Dozono, N.Fukuda, T.Furuno, E.Ideguchi, N.Inabe, T.Kawabata, S.Kawase, K.Kisamori, K.Kobayashi, T.Kubo, Y.Kubota, C.S.Lee, M.Matsushita, H.Miya, A.Mizukami, H.Nagakura, D.Nishimura, H.Oikawa, H.Sakai, Y.Shimizu, A.Stolz, H.Suzuki, M.Takaki, H.Takeda, S.Takeuchi, H.Tokieda, T.Uesaka, K.Yako, Y.Yamaguchi, Y.Yanagisawa, R.Yokoyama, K.Yoshida, S.Shimoura

Magic Nature of Neutrons in Ca54 : First Mass Measurements of 55-57Ca

ATOMIC MASSES 55,56,57Ca, 48Ar, 44,46Cl, 40,42P, 40Si; measured charge, TOF, magnetic rigidity, and flight path length between the timing detectors; deduced m/q spectrum of reference masses, mass excesses. Comparison with AME2016 evaluation.

doi: 10.1103/PhysRevLett.121.022506
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2018MO33      Phys.Lett. B 781, 706 (2018)

A.I.Morales, G.Benzoni, H.Watanabe, G.de Angelis, S.Nishimura, L.Coraggio, A.Gargano, N.Itaco, T.Otsuka, Y.Tsunoda, P.Van Isacker, F.Browne, R.Daido, P.Doornenbal, Y.Fang, G.Lorusso, Z.Patel, S.Rice, L.Sinclair, P.-A.Soderstrom, T.Sumikama, J.J.Valiente-Dobon, J.Wu, Z.Y.Xu, A.Yagi, R.Yokoyama, H.Baba, R.Avigo, F.L.Bello Garrote, N.Blasi, A.Bracco, A.M.Bruce, F.Camera, S.Ceruti, F.C.L.Crespi, M.-C.Delattre, Zs.Dombradi, A.Gottardo, T.Isobe, I.Kojouharov, N.Kurz, I.Kuti, S.Lalkovski, K.Matsui, B.Melon, D.Mengoni, T.Miyazaki, V.Modamio-Hoybjor, S.Momiyama, D.R.Napoli, M.Niikura, R.Orlandi, Zs.Podolyak, P.H.Regan, H.Sakurai, E.Sahin, D.Sohler, H.Schaffner, R.Taniuchi, J.Taprogge, Zs.Vajta, O.Wieland, M.Yalcinkaya

Is seniority a partial dynamic symmetry in the first νg9/2 shell?

RADIOACTIVITY 72,74Co(β-) [from 9Be(238U, X), E=345 MeV/nucleon]; measured reaction products, Eγ, Iγ; deduced γ-ray energies, levels, isomeric states, seniority scheme, B(E2), the disappearance of the seniority isomerism. Comparison with available data. The MCSM calculations. The first in-flight β-delayed fast-timing study. The RIBF facility in RIKEN within the EURICA collaboration.

doi: 10.1016/j.physletb.2018.04.049
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2018NO05      Phys.Rev.Lett. 120, 172501 (2018)

S.Noji, H.Sakai, N.Aoi, H.Baba, G.P.A.Berg, P.Doornenbal, M.Dozono, N.Fukuda, N.Inabe, D.Kameda, T.Kawabata, S.Kawase, Y.Kikuchi, K.Kisamori, T.Kubo, Y.Maeda, H.Matsubara, S.Michimasa, K.Miki, H.Miya, H.Miyasako, S.Sakaguchi, Y.Sasamoto, S.Shimoura, M.Takaki, H.Takeda, S.Takeuchi, H.Tokieda, T.Ohnishi, S.Ota, T.Uesaka, H.Wang, K.Yako, Y.Yanagisawa, N.Yokota, K.Yoshida, R.G.T.Zegers

Excitation of the Isovector Spin Monopole Resonance via the Exothermic 90Zr(12N, 12C) Reaction at 175 MeV/υ

NUCLEAR REACTIONS 90Zr(12N, 12C), E=175 MeV/nucleon; measured reaction products, Eγ, Iγ. 90Zr; deduced σ(θ, E), Gamow-Teller and isobaric analog transitions, isovector spin giant monopole resonance (IVSMR).

doi: 10.1103/PhysRevLett.120.172501
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2585.


2018PA20      Phys.Rev. C 97, 051301R (2018)

J.Park, R.Krucken, D.Lubos, R.Gernhauser, M.Lewitowicz, S.Nishimura, D.S.Ahn, H.Baba, B.Blank, A.Blazhev, P.Boutachkov, F.Browne, I.Celikovic, G.de France, P.Doornenbal, T.Faestermann, Y.Fang, N.Fukuda, J.Giovinazzo, N.Goel, M.Gorska, H.Grawe, S.Ilieva, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, G.Lorusso, K.Moschner, D.Murai, I.Nishizuka, Z.Patel, M.M.Rajabali, S.Rice, H.Sakurai, H.Schaffner, Y.Shimizu, L.Sinclair, P.-A.Soderstrom, K.Steiger, T.Sumikama, H.Suzuki, H.Takeda, Z.Wang, H.Watanabe, J.Wu, Z.Y.Xu

β decays of the heaviest N=Z-1 nuclei and proton instability of 97In

RADIOACTIVITY 91Pd, 95Cd, 97In, 97mIn, 99Sn(β+p) [from 9Be(124Xe, X), E=345 MeV/nucleon]; measured decay products, Iβ, Eβ, Ip, Ep, Iγ, Eγ; deduced T1/2, Q-values, β-delayed proton emission branching ratios, log ft, isomeric ratio. Comparison shell model calculations, available experimental and mass evaluated data.

doi: 10.1103/PhysRevC.97.051301
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