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NSR database version of April 11, 2024.

Search: Author = N.Chiga

Found 33 matches.

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2024IM02      Phys.Lett. B 850, 138470 (2024)

N.Imai, M.Dozono, S.Michimasa, T.Sumikama, S.Ota, S.Hayakawa, J.W.Hwang, K.Iribe, C.Iwamoto, S.Kawase, K.Kawata, N.Kitamura, S.Masuoka, K.Nakano, P.Schrock, D.Suzuki, R.Tsunoda, K.Wimmer, D.S.Ahn, O.Beliuskina, N.Chiga, N.Fukuda, E.Ideguchi, K.Kusaka, H.Miki, H.Miyatake, D.Nagae, S.Ohmika, M.Ohtake, H.J.Ong, H.Otsu, H.Sakurai, H.Shimizu, Y.Shimizu, X.Sun, H.Suzuki, M.Takaki, H.Takeda, S.Takeuchi, T.Teranishi, Y.Watanabe, Y.X.Watanabe, K.Yako, H.Yamada, H.Yamaguchi, L.Yang, R.Yanagihara, Y.Yanagisawa, K.Yoshida, S.Shimoura

Neutron capture reaction cross-section of 79Se through the 79Se(d, p) reaction in inverse kinematics

NUCLEAR REACTIONS 2H(77Se, p), (79Se, p), E=20 MeV/nucleon; measured reaction products, Eγ, Iγ. 78,80Se; deduced γ-ray energies, γ-emission probabilities, σ, isomer ratio. Comparison with available data, TALYS and code DWUCK5 calculations. The surrogate-ratio method, the RI Beam Factory operated by the RIKEN Nishina Center and the Center for Nuclear Studies (CNS), University of Tokyo, by employing the novel "optimized energy degrading optics" (OEDO) for radioactive isotope (RI) beams.

doi: 10.1016/j.physletb.2024.138470
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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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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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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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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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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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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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2022NA31      Prog.Theor.Exp.Phys. 2022, 093D01 (2022)

T.Nanamura, K.Miwa, J.K.Ahn, Y.Akazawa, T.Aramaki, S.Ashikaga, S.Callier, N.Chiga, S.W.Choi, H.Ekawa, P.Evtoukhovitch, N.Fujioka, M.Fujita, T.Gogami, T.K.Harada, S.Hasegawa, S.H.Hayakawa, R.Honda, S.Hoshino, K.Hosomi, M.Ichikawa, Y.Ichikawa, M.Ieiri, M.Ikeda, K.Imai, Y.Ishikawa, S.Ishimoto, W.S.Jung, S.Kajikawa, H.Kanauchi, H.Kanda, T.Kitaoka, B.M.Kang, H.Kawai, S.H.Kim, K.Kobayashi, T.Koike, K.Matsuda, Y.Matsumoto, S.Nagao, R.Nagatomi, Y.Nakada, M.Nakagawa, I.Nakamura, M.Naruki, S.Ozawa, L.Raux, T.G.Rogers, A.Sakaguchi, T.Sakao, H.Sako, S.Sato, T.Shiozaki, K.Shirotori, K.N.Suzuki, S.Suzuki, M.Tabata, C.d L.Taille, H.Takahashi, T.Takahashi, T.N.Takahashi, H.Tamura, M.Tanaka, K.Tanida, Z.Tsamalaidze, M.Ukai, H.Umetsu, S.Wada, T.O.Yamamoto, J.Yoshida, K.Yoshimura

Measurement of differential cross sections for Σ+p elastic scattering in the momentum range 0.44-0.80 GeV/c

NUCLEAR REACTIONS 1H(Σ+, Σ+), E<1 GeV; measured reaction products, Ep, Ip; deduced σ(θ), missing mass spectrum. Comparison with the fss2 and FSS models based on the quark cluster model in the short-range region. J-PARC Hadron Experimental Facility.

doi: 10.1093/ptep/ptac101
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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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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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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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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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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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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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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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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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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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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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2019NA23      Phys.Rev. C 100, 044605 (2019)

K.Nakano, Y.Watanabe, S.Kawase, H.Wang, H.Otsu, H.Sakurai, S.Takeuchi, Y.Togano, T.Nakamura, Y.Maeda, D.S.Ahn, M.Aikawa, S.Araki, S.Chen, N.Chiga, P.Doornenbal, N.Fukuda, T.Ichihara, T.Isobe, S.Kawakami, T.Kin, Y.Kondo, S.Koyama, T.Kubo, S.Kubono, M.Uesaka, A.Makinaga, M.Matsushita, T.Matsuzaki, S.Michimasa, S.Momiyama, S.Nagamine, M.Niikura, T.Ozaki, A.Saito, T.Saito, Y.Shiga, M.Shikata, Y.Shimizu, S.Shimoura, T.Sumikama, P.-A.Soderstrom, H.Suzuki, H.Takeda, R.Taniuchi, J.Tsubota, Y.Watanabe, K.Wimmer, T.Yamamoto, K.Yoshida

Isotope production in proton-, deuteron-, and carbon-induced reactions on 93Nb at 113 MeV/nucleon

NUCLEAR REACTIONS 1,2H, 12C(93Nb, X)90Mo/91Mo/92Mo/87Nb/88Nb/89Nb/90Nb/91Nb/92Nb/85Zr/86Zr/87Zr/88Zr/89Zr/90Zr/91Zr/92Zr/82Y/83Y/84Y/85Y/86Y/87Y/88Y/80Sr/81Sr/82Sr/83Sr/84Sr/85Sr/78Rb/79Rb/80Rb/81Rb/82Rb/83Rb, E=113 MeV/nucleon; measured fragment yields, production σ using CH2, CD2 and C targets, BigRIPS beam separator and the ZeroDegree spectrometer (ZDS) at RIBF-RIKEN facility. Comparison with predictions of INCL-4.6, JQMD, and JQMD-2.0 models, with previous experimental data for 93Zr target, and with the nuclear data libraries JENDL-4.0/HE, TENDL-2017, and ENDF/B-VIII.0

doi: 10.1103/PhysRevC.100.044605
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2018CH27      Prog.Theor.Exp.Phys. 2018, 053D01 (2018)

S.Chebotaryov, S.Sakaguchi, T.Uesaka, T.Akieda, Y.Ando, M.Assie, D.Beaumel, N.Chiga, M.Dozono, A.Galindo-Uribarri, B.Heffron, A.Hirayama, T.Isobe, K.Kaki, S.Kawase, W.Kim, T.Kobayashi, H.Kon, Y.Kondo, Y.Kubota, S.Leblond, H.Lee, T.Lokotko, Y.Maeda, Y.Matsuda, K.Miki, E.Milman, T.Motobayashi, T.Mukai, S.Nakai, T.Nakamura, A.Ni, T.Noro, S.Ota, H.Otsu, T.Ozaki, V.Panin, S.Park, A.Saito, H.Sakai, M.Sasano, H.Sato, K.Sekiguchi, Y.Shimizu, I.Stefan, L.Stuhl, M.Takaki, K.Taniue, K.Tateishi, S.Terashima, Y.Togano, T.Tomai, Y.Wada, T.Wakasa, T.Wakui, A.Watanabe, H.Yamada, Zh.Yang, M.Yasuda, J.Yasuda, K.Yoneda, J.Zenihiro

Proton elastic scattering at 200 A MeV and high momentum transfers of 1.7-2.7 fm-1 as a probe of the nuclear matter density of 6He

NUCLEAR REACTIONS 1H(6He, 6He), E=200 MeV/nucleon; measured reaction products; deduced σ(θ). Comparison with available data, relativistic impulse approximation model predictions.

doi: 10.1093/ptep/pty048
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2017BR12      Phys.Rev. C 96, 024309 (2017)

F.Browne, A.M.Bruce, T.Sumikama, 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, 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

K selection in the decay of the (ν5/2[532] (X) 3/2 [411]) 4- isomeric state in 102Zr

RADIOACTIVITY 102Y(β-)[from 9Be(238U, F), E=345 MeV/nucleon]; measured Eγ, Iγ, energy-time matrices in coincidence with position-correlated β decays and 102Y ions, isomer half-life by βγγ(t) fast-timing method using BigRIPS spectrometer for ion separation, WAS3ABi system for ion and β detection and EURICA array for γ detection at RIBF-RIKEN facility. 102Zr; deduced levels, J, π, K for the isomer, B(E1), B(M1), Weisskopf hindrance factors, configuration for the isomer. Comparison with Weisskopf hindrance factors for the transitions from the decay of 4- isomer in 100Sr.

doi: 10.1103/PhysRevC.96.024309
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2017KA46      Prog.Theor.Exp.Phys. 2017, 093D03 (2017)

S.Kawase, K.Nakano, Y.Watanabe, H.Wang, H.Otsu, H.Sakurai, D.S.Ahn, M.Aikawa, T.Ando, S.Araki, S.Chen, N.Chiga, P.Doornenbal, N.Fukuda, T.Isobe, S.Kawakami, T.Kin, Y.Kondo, S.Koyama, S.Kubono, Y.Maeda, A.Makinaga, M.Matsushita, T.Matsuzaki, S.Michimasa, S.Momiyama, S.Nagamine, T.Nakamura, M.Niikura, T.Ozaki, A.Saito, T.Saito, Y.Shiga, M.Shikata, Y.Shimizu, S.Shimoura, T.Sumikama, P.Soderstrom, H.Suzuki, H.Takeda, S.Takeuchi, R.Taniuchi, Y.Togano, J.Tsubota, M.Uesaka, Y.Watanabe, K.Wimmer, T.Yamamoto, K.Yoshida

Study of proton- and deuteron-induced spallation reactions on the long-lived fission product 93Zr at 105 MeV/nucleon in inverse kinematics

NUCLEAR REACTIONS C, H(93Zr, X)92Nb/81Kr/81Rb, E=105 MeV/nucleon; measured reaction products, Eγ, Iγ. 92Zr, 81Br, 81Kr; deduced σ. Comparison with the PHITS calculations with INCL 4.6 for the intranuclear cascade process and GEM for the evaporation process.

doi: 10.1093/ptep/ptx110
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2015BR03      Acta Phys.Pol. B46, 721 (2015)

F.Browne, A.M.Bruce, T.Sumikama, I.Nishizuka, S.Nishimura, P.Doornenbal, G.Lorusso, Z.Patel, S.Rice, L.Sinclair, P.-A.Soderstrom, H.Watanabe, J.Wu, Z.Y.Xu, H.Baba, N.Chiga, R.Carroll, R.Daido, F.Didierjean, Y.Fang, G.Gey, E.Ideguchi, N.Inabe, T.Isobe, D.Kameda, I.Kojouharov, N.Kurz, T.Kubo, S.Lalkovski, Z.Li, R.Lozeva, N.Naoki, 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, A.Yagi

Gamma-ray Spectroscopy in the Vicinity of 108Zr

RADIOACTIVITY 104,106Y, 106,108Nb(β-) [from Be(238U, X), E=345 MeV/nucleon; measured decay products, Eγ, Iγ; deduced T1/2, B(E2), γ-ray energies.

doi: 10.5506/APhysPolB.46.721
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2015BR13      Phys.Lett. B 750, 448 (2015)

F.Browne, A.M.Bruce, T.Sumikama, 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

Lifetime measurements of the first 2+ states in 104, 106Zr: Evolution of ground-state deformations

RADIOACTIVITY 106,104Y(β-) [from 9Be(238U, X), E=345 MeV/nucleon;]; measured decay products, Eγ, Iγ; deduced lifetimes, B(E2), deformation parameters. The first fast-timing measurements from nuclides produced via the in-flight fission mechanism, comparison with shell model calculations.

doi: 10.1016/j.physletb.2015.09.043
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2013MO25      Nucl.Phys. A914, 91c (2013)

M.Moritsu, S.Adachi, M.Agnello, S.Ajimura, K.Aoki, H.C.Bhang, B.Bassalleck, E.Botta, S.Bufalino, N.Chiga, H.Ekawa, P.Evtoukhovitch, A.Feliciello, H.Fujioka, S.Hayakawa, F.Hiruma, R.Honda, K.Hosomi, Y.Ichikawa, M.Ieiri, Y.Igarashie, K.Imai, N.Ishibashi, S.Ishimoto, K.Itahashi, R.Iwasaki, C.W.Joo, S.Kanatsuki, M.J.Kim, S.J.Kim, R.Kiuchi, T.Koike, Y.Komatsu, V.V.Kulikov, S.Marcello, S.Masumoto, Y.Matsumoto, K.Matsuoka, K.Miwa, T.Nagae, M.Naruki, M.Niiyama, H.Noumi, Y.Nozawa, R.Ota, K.Ozawa, N.Saito, A.Sakaguchi, H.Sako, V.Samoilov, M.Sato, S.Sato, Y.Sato, S.Sawada, M.Sekimoto, K.Shirotori, H.Sugimura, S.Suzuki, H.Takahashi, T.Takahashi, T.N.Takahashi, H.Tamura, T.Tanaka, K.Tanida, A.O.Tokiyasu, N.Tomida, Z.Tsamalaidze, M.Ukai, K.Yagi, T.O.Yamamoto, S.B.Yang, Y.Yonemoto, C.J.Yoon, K.Yoshida

Search for the Θ+ pentaquark at J-PARC

doi: 10.1016/j.nuclphysa.2013.01.010
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2013TA25      Nucl.Phys. A914, 99c (2013)

H.Tamura, K.Hosomi, S.Bufalino, N.Chiga, P.Evtoukhovitch, A.Feliciello, R.Honda, T.Koike, Y.Ma, K.Miwa, A.Sasaki, Y.Sasaki, K.Shirotori, K.Tanida, Z.Tsamalaidze, M.Ukai, T.O.Yamamoto, S.B.Yang

Gamma-ray spectroscopy of hypernuclei - present and future

NUCLEAR REACTIONS 11C(π+, K+), E not given; reanalyzed KEK E566 data; deduced 12C Λ hypernucleus new γ transitions, transition multipolarity, level, J, π. Preliminary.

NUCLEAR STRUCTURE 4H, 4He, 7Li, 11B, 12,13C, 15N, 16O, 19F; calculated, reanalyzed Λ hypernuclei published data; deduced large charge symmetry breaking in Λ-nucleon interaction.

doi: 10.1016/j.nuclphysa.2013.03.014
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2010HA21      Nucl.Phys. A834, 596c (2010)

Y.-C.Han, B.Backford, N.Chiga, T.Fujii, T.Fujibayashi, T.Gogami, K.Futatsukawa, O.Hashimoto, K.Hirose, K.Hosomi, A.Iguchi, T.Ishikawa, H.Kanda, M.Kaneta, D.Kawama, T.Kawasaki, C.Kimura, S.Kiyokawa, T.Koike, Y.Ma, K.Maeda, N.Maruyama, A.Matsumura, Y.Miyagi, K.Miwa, S.N.Nakamura, A.Okuyama, T.Otani, M.Sato, A.Shichijo, K.Shirotori, H.Shimizu, K.Suzuki, H.Tamura, N.Taniya, N.Terada, T.Yamamoto, T.Yamamoto, K.Yokota, T.Tamae, T.-S.Wanga, H.Yamazaki

Study of charged pion photoproduction on deuteron

NUCLEAR REACTIONS 2H(γ, 2pπ-), (γ, π+π-), E=0.8-1.1 GeV; measured σ, Δ++Δ- production.

doi: 10.1016/j.nuclphysa.2010.01.102
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2010TA26      Nucl.Phys. A835, 3c (2010)

H.Tamura, Y.Ma, N.Chiga, K.Hosomi, T.Koike, M.Mimori, K.Miwa, M.Sato, K.Shirotori, M.Ukai, T.O.Yamamoto

Gamma spectroscopy of hypernuclei: a decade of Hyperball project and future plans at J-PARC

NUCLEAR REACTIONS 12C(π+, K+), E at 1.05 GeV/nucleon; measured Eγ, Iγ. 12C deduced hypernuclei levels, J, π.

doi: 10.1016/j.nuclphysa.2010.01.168
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