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1p(3/2) Proton-Hole State in Sn-132 and the Shell Structure Along N=82
- Taprogge, J.;
- Jungclaus, A.;
- Grawe, H.;
- Nishimura, S.;
- Doornenbal, P.;
- ... Kim, Yong Kyun;
- 외 54명
WEB OF SCIENCE
60SCOPUS
60초록
A low-lying state in In-131(82), the one-proton hole nucleus with respect to double magic Sn-132, was observed by its gamma decay to the I-pi 1/2(-) beta-emitting isomer. We identify the new state at an excitation energy of E-x = 1353 keV, which was populated both in the beta decay of Cd-131(83) and after beta-delayed neutron emission from Cd-132(84), as the previously unknown pi p(3/2) single-hole state with respect to the Sn-132 core. Exploiting this crucial new experimental information, shell-model calculations were performed to study the structure of experimentally inaccessible N = 82 isotones below Sn-132. The results evidence a surprising absence of proton subshell closures along the chain of N = 82 isotones. The consequences of this finding for the evolution of the N = 82 shell gap along the r-process path are discussed.
키워드
- 제목
- 1p(3/2) Proton-Hole State in Sn-132 and the Shell Structure Along N=82
- 저자
- Taprogge, J.; Jungclaus, A.; Grawe, H.; Nishimura, S.; Doornenbal, P.; Lorusso, G.; Simpson, G. S.; Soederstroem, P. -A.; Sumikama, T.; Xu, Z. Y.; Baba, H.; Browne, F.; Fukuda, N.; Gernhaeuser, R.; Gey, G.; Inabe, N.; Isobe, T.; Jung, H. S.; Kameda, D.; Kim, G. D.; Kim, Yong Kyun; Kojouharov, I.; Kubo, T.; Kurz, N.; Kwon, Y. K.; Li, Z.; Sakurai, H.; Schaffner, H.; Steiger, K.; Suzuki, H.; Takeda, H.; Vajta, Zs.; Watanabe, H.; Wu, J.; Yagi, A.; Yoshinaga, K.; Benzoni, G.; Boenig, S.; Chae, K. Y.; Coraggio, L.; Covello, A.; Daugas, J. -M.; Drouet, F.; Gadea, A.; Gargano, A.; Ilieva, S.; Kondev, F. G.; Kroell, T.; Lane, G. J.; Montaner-Piza, A.; Moschner, K.; Muecher, D.; Naqvi, F.; Niikura, M.; Nishibata, H.; Odahara, A.; Orlandi, R.; Patel, Z.; Podolyak, Zs.; Wendt, A.
- 발행일
- 2014-04
- 유형
- Article
- 권
- 112
- 호
- 13
- 페이지
- 1 ~ 6