Cortes, M. L.; Rodriguez, W.; Doornenbal, P.; Obertelli, A.; Holt, J. D.; Menendez, J.; Ogata, K.; Schwenk, A.; Shimizu, N.; Simonis, J.; Utsuno, Y.; Yoshida, K.; Achouri, L.; Baba, H.; Browne, F.; Calvet, D.; Chateau, F.; Chen, S.; Chiga, N.; Corsi, A.; Delbart, A.; Gheller, J-M; Giganon, A.; Gillibert, A.; Hilaire, C.; Isobe, T.; Kobayashi, T.; Kubota, Y.; Lapoux, V; Liu, H. N.; Motobayashi, T.; Murray, I; Otsu, H.; Panin, V; Paul, N.; Sakurai, H.; Sasano, M.; Steppenbeck, D.; Stuhl, L.; Sun, Y. L.; Togano, Y.; Uesaka, T.; Wimmer, K.; Yoneda, K.; Aktas, O.; Aumann, T.; Chung, L. X.; Flavigny, F.; Franchoo, S.; Gasparic, I; Gerst, R-B; Gibelin, J.; Hahn, K., I; Kim, D.; Koiwai, T.; Kondo, Y.; Koseoglou, P.; Lee, J.; Lehr, C.; Linh, B. D.; Lokotko, T.; MacCormick, M.; Moschner, K.; Nakamura, T.; Park, S. Y.; Rossi, D.; Sahin, E.; Soederstroem, P-A; Sohler, D.; Takeuchi, S.; Toernqvist, H.; Vaquero, V.; Wagner, V; Wang, S.; Werner, V; Xu, X.; Yamada, H.; Yan, D.; Yang, Z.; Yasuda, M.; Zanetti, L. (2020) N=32 shell closure below calcium: Low-lying structure of Ar50. Physical Review C, 102 (6). ISSN 2469-9985
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Abstract
Low-lying excited states in the N = 32 isotope Ar-50 were investigated by in-beam gamma-ray spectroscopy following proton- and neutron-knockout, multinucleon removal, and proton inelastic scattering at the RIKEN Radioactive Isotope Beam Factory. The energies of the two previously reported transitions have been confirmed, and five additional states are presented for the first time, including a candidate for a 3(-) state. The level scheme built using gamma gamma coincidences was compared to shell-model calculations in the sd-pf model space and to ab initio predictions based on chiral two- and three-nucleon interactions. Theoretical proton- and neutron-knockout cross sections suggest that two of the new transitions correspond to 2(+) states, while the previously proposed 4(1)(+) state could also correspond to a 2(+) state.
Item Type: | Article | ||||||||||||
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Uncontrolled Keywords: | nuclear shell model ; magic numbers ; gamma-ray spectroscopy ; radioactive beams | ||||||||||||
Subjects: | NATURAL SCIENCES > Physics | ||||||||||||
Divisions: | Division of Experimental Physics | ||||||||||||
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Depositing User: | Igor Gašparić | ||||||||||||
Date Deposited: | 16 Mar 2021 08:31 | ||||||||||||
URI: | http://fulir.irb.hr/id/eprint/6347 | ||||||||||||
DOI: | 10.1103/physrevc.102.064320 |
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