NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = T.Koiwai Found 17 matches. 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
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
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
2023II01 Phys.Rev.Lett. 130, 012501 (2023) S.Iimura, M.Rosenbusch, A.Takamine, Y.Tsunoda, M.Wada, S.Chen, D.S.Hou, W.Xian, H.Ishiyama, S.Yan, P.Schury, H.Crawford, P.Doornenbal, Y.Hirayama, Y.Ito, S.Kimura, T.Koiwai, T.M.Kojima, H.Koura, J.Lee, J.Liu, S.Michimasa, H.Miyatake, J.Y.Moon, S.Naimi, S.Nishimura, T.Niwase, A.Odahara, T.Otsuka, S.Paschalis, M.Petri, N.Shimizu, T.Sonoda, D.Suzuki, Y.X.Watanabe, K.Wimmer, H.Wollnik Study of the N=32 and N=34 Shell Gap for Ti and V by the First High-Precision Multireflection Time-of-Flight Mass Measurements at BigRIPS-SLOWRI ATOMIC MASSES 55Sc, 56,58Ti, 56,57,58,59V; measured TOF; deduced masses, nonexistence of the N=34 empirical two-neutron shell gaps for Ti and V, and the enhanced energy gap in Ca. Comparison with new Monte Carlo shell model calculations. RIKEN's Radioactive Isotope Beam Factory (RIBF).
doi: 10.1103/PhysRevLett.130.012501
2023WI05 Phys.Lett. B 847, 138249 (2023) K.Wimmer, P.Ruotsalainen, S.M.Lenzi, A.Poves, T.Huyuk, F.Browne, P.Doornenbal, T.Koiwai, T.Arici, K.Auranen, M.A.Bentley, M.L.Cortes, C.Delafosse, T.Eronen, Z.Ge, T.Grahn, P.T.Greenlees, A.Illana, N.Imai, H.Joukainen, R.Julin, A.Jungclaus, H.Jutila, A.Kankainen, N.Kitamura, B.Longfellow, J.Louko, R.Lozeva, M.Luoma, B.Mauss, D.R.Napoli, M.Niikura, J.Ojala, J.Pakarinen, X.Pereira-Lopez, P.Rahkila, F.Recchia, M.Sandzelius, J.Saren, R.Taniuchi, H.Tann, S.Uthayakumaar, J.Uusitalo, V.Vaquero, R.Wadsworth, G.Zimba, R.Yajzey Isospin symmetry in the T = 1, A=62 triplet NUCLEAR REACTIONS 12C(62Zn, 62Zn'), (62Ga, 62Ga'), (62Ge, 62Ge'), E ∼ 165 MeV/nucleon; 24Mg(40Ca, 2n)62Ge, E=106 MeV; measured reaction products, Eγ, Iγ. 62Zn, 62Ga, 62Ge; deduced γ-ray energies, J, π, level schemes, mirror energy differences as a function of the spin of the state. Comparison with the shell-model calculations with the K3BGR (GXPF1A) effective interactions. The Radioactive Isotope Beam Facility operated by the RIKEN Nishina Center and CNS, University of Tokyo, and the Accelerator Laboratory of the University of Jyvaskyla (JYFL-ACCLAB).
doi: 10.1016/j.physletb.2023.138249
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
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
2021FE11 Phys.Lett. B 823, 136784 (2021) A.Fernandez, A.Jungclaus, P.Doornenbal, M.A.Bentley, S.M.Lenzi, D.Rudolph, F.Browne, M.L.Cortes, T.Koiwai, R.Taniuchi, V.Vaquero, K.Wimmer, T.Arici, N.Imai, N.Kitamura, B.Longfellow, R.Lozeva, B.Mauss, D.R.Napoli, M.Niikura, X.Pereira-Lopez, S.Pigliapoco, A.Poves, F.Recchia, P.Ruotsalainen, H.Sakurai, S.Uthayakumaar, R.Wadsworth, R.Yajzey Mirror energy differences above the 0f7/2 shell: First γ-ray spectroscopy of the Tz=-2 nucleus 56Zn NUCLEAR REACTIONS 9Be(57Zn, X)56Zn, E=200 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, yrast sequence, mirror energy differences (MED). Comparison with KB3GR shell-model prediction. The Radioactive Isotope Beam Factory at RIKEN.
doi: 10.1016/j.physletb.2021.136784
2021JI11 Phys.Rev. C 104, 024302 (2021) S.Y.Jin, S.T.Wang, J.Lee, A.Corsi, K.Wimmer, F.Browne, S.Chen, M.L.Cortes, P.Doornenbal, T.Koiwai, C.X.Yuan, A.Algora, D.Brugnara, J.Cederkall, J.Gerl, M.Gorska, G.Hafner, K.Kokubun, P.Koseoglou, S.Kubono, P.Li, P.Liang, J.Liu, Z.Liu, T.Lokotko, J.Park, H.Sakurai, L.G.Sarmiento, Z.Y.Sun, R.Taniuchi, W.Xian, I.Zanon Spectroscopy of 98Cd by two-nucleon removal from 100In NUCLEAR REACTIONS C(100In, 98Cd), E AP 175 MeV/nucleon, [secondary 100In beam from 9Be(124Xe, X), E=345 MeV/nucleon, followed by separation of fragments using BigRIPS fragment separator at RIBF-RIKEN facility]; measured reaction residues using the ZeroDegree spectrometer, Eγ, Iγ, γγ-coin using DALI2+ array of 226 NaI(Tl) detectors, and CH2 and carbon targets. 98Cd; deduced levels, J, π, yrast cascade, configurations. Comparison with shell-model calculations.Systematics of 5- levels in 90Zr, 92Mo, 94Ru, 96Pd, 98Cd.
doi: 10.1103/PhysRevC.104.024302
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
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
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
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
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
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
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
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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