proton-hole state in
Sn and the shell structure along
=82
Snの
陽子空孔状態と
=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
derstr
m, P.-A.*; 炭竃 聡之*; Xu, Z. Y.*; 馬場 秀忠*; Browne, F.*; 福田 直樹*; Gernh
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
nig, S.*; Chae, K. Y.*; Coraggio, L.*; Covello, A.*; Daugas, J.-M.*; Drouet, F.*; Gadea, A.*; Gargano, A.*; Ilieva, S.*; Kondev, F. G.*; Kr
ll, T.*; Lane, G. J.*; Montaner-Piz
, A.*; Moschner, K.*; M
cher, D.*; Naqvi, F.*; 新倉 潤*; 西畑 洸希*; 小田原 厚子*; Orlandi, R.
; Patel, Z.*; Podoly
k, Zs.*; Wendt, A.*
Taprogge, J.*; Jungclaus, A.*; Grawe, H.*; Nishimura, Shunji*; Doornenbal, P.*; Lorusso, G.*; Simpson, G.*; S
derstr
m, P.-A.*; Sumikama, Toshiyuki*; Xu, Z. Y.*; Baba, Hidetada*; Browne, F.*; Fukuda, Naoki*; Gernh
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
nig, S.*; Chae, K. Y.*; Coraggio, L.*; Covello, A.*; Daugas, J.-M.*; Drouet, F.*; Gadea, A.*; Gargano, A.*; Ilieva, S.*; Kondev, F. G.*; Kr
ll, T.*; Lane, G. J.*; Montaner-Piz
, A.*; Moschner, K.*; M
cher, D.*; Naqvi, F.*; Niikura, Megumi*; Nishibata, Hiroki*; Odahara, Atsuko*; Orlandi, R.; Patel, Z.*; Podoly
k, Zs.*; Wendt, A.*
A low-lying state in
In, the one-proton hole nucleus with respect to double magic
Sn, was observed by its
decay to the beta emitting isomer. The new state, which was populated both in the beta decay of
Cd and after beta-delayed neutron emission from
Cd, was identified, at an excitation energy of 1353 keV, as the previously unknown single-hole state with respect to the
Sn core. Exploiting this crucial new experimental information, shell-model calculations were performed to study the structure of experimentally inaccessible
=82 isotones below
Sn. The results evidence a surprising absence of proton subshell closures along the chain of
=82 isotones. This finding bears consequences on the evolution of the
=82 shell gap along the r-process path.