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$$1p_{3/2}$$ proton-hole state in $$^{132}$$Sn and the shell structure along $$N$$=82

$$^{132}$$Snの$$1p_{3/2}$$陽子空孔状態と$$N$$=82に沿った殻構造

Taprogge, J.*; Jungclaus, A.*; Grawe, H.*; 西村 俊二*; Doornenbal, P.*; Lorusso, G.*; Simpson, G.*; S$"o$derstr$"o$m, P.-A.*; 炭竃 聡之*; Xu, Z. Y.*; 馬場 秀忠*; Browne, F.*; 福田 直樹*; Gernh$"a$user, R.*; Gey, G.*; 稲辺 尚人*; Isobe, T.*; Jung, H. S.*; 亀田 大輔*; Kim, G. D.*; Kim, Y.-K.*; Kojouharov, I.*; 久保 敏幸*; Kurz, N.*; Kwon, Y. K.*; Li, Z.*; 櫻井 博儀*; Schaffner, H.*; Steiger, K.*; Suzuki, H.*; Takeda, H.*; Vajta, Zs.*; Watanabe, H.*; Wu, J.*; Yagi, A.*; 吉永 健太*; Benzoni, G.*; B$"o$nig, S.*; Chae, K. Y.*; Coraggio, L.*; Covello, A.*; Daugas, J.-M.*; Drouet, F.*; Gadea, A.*; Gargano, A.*; Ilieva, S.*; Kondev, F. G.*; Kr$"o$ll, T.*; Lane, G. J.*; Montaner-Piz$'a$, A.*; Moschner, K.*; M$"u$cher, D.*; Naqvi, F.*; 新倉 潤*; 西畑 洸希*; 小田原 厚子*; Orlandi, R.; Patel, Z.*; Podoly$'a$k, Zs.*; Wendt, A.*

Taprogge, J.*; Jungclaus, A.*; Grawe, H.*; Nishimura, Shunji*; Doornenbal, P.*; Lorusso, G.*; Simpson, G.*; S$"o$derstr$"o$m, P.-A.*; Sumikama, Toshiyuki*; Xu, Z. Y.*; Baba, Hidetada*; Browne, F.*; Fukuda, Naoki*; Gernh$"a$user, R.*; Gey, G.*; Inabe, Naoto*; Isobe, T.*; Jung, H. S.*; Kameda, Daisuke*; Kim, G. D.*; Kim, Y.-K.*; Kojouharov, I.*; Kubo, Toshiyuki*; Kurz, N.*; Kwon, Y. K.*; Li, Z.*; Sakurai, Hiroyoshi*; Schaffner, H.*; Steiger, K.*; Suzuki, H.*; Takeda, H.*; Vajta, Zs.*; Watanabe, H.*; Wu, J.*; Yagi, A.*; Yoshinaga, Kenta*; Benzoni, G.*; B$"o$nig, S.*; Chae, K. Y.*; Coraggio, L.*; Covello, A.*; Daugas, J.-M.*; Drouet, F.*; Gadea, A.*; Gargano, A.*; Ilieva, S.*; Kondev, F. G.*; Kr$"o$ll, T.*; Lane, G. J.*; Montaner-Piz$'a$, A.*; Moschner, K.*; M$"u$cher, D.*; Naqvi, F.*; Niikura, Megumi*; Nishibata, Hiroki*; Odahara, Atsuko*; Orlandi, R.; Patel, Z.*; Podoly$'a$k, Zs.*; Wendt, A.*

A low-lying state in $$^{131}$$In, the one-proton hole nucleus with respect to double magic $$^{132}$$Sn, was observed by its $$gamma$$ decay to the beta emitting isomer. The new state, which was populated both in the beta decay of $$^{131}$$Cd and after beta-delayed neutron emission from $$^{132}$$Cd, was identified, at an excitation energy of 1353 keV, as the previously unknown single-hole state with respect to the $$^{132}$$Sn core. Exploiting this crucial new experimental information, shell-model calculations were performed to study the structure of experimentally inaccessible $$N$$=82 isotones below $$^{132}$$Sn. The results evidence a surprising absence of proton subshell closures along the chain of $$N$$=82 isotones. This finding bears consequences on the evolution of the $$N$$=82 shell gap along the r-process path.

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パーセンタイル:9.99

分野:Physics, Multidisciplinary

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