Proton Shell Evolution below Sn-132: First Measurement of Low-Lying beta-Emitting Isomers in Ag-123,Ag-325
- Authors
- Chen, ZQ; Li, ZH; Hua, H; Watanabe, H; Yuan, CX; Zhang, SQ; Lorusso, G; Nishimura, S; Baba, H; Browne, F; Benzoni, G; Chae, K. Y.; Crespi, F. C. L.; Doornenbal, P.; Fukuda, N.; Gey, G.; Gernhaeuser, R.; Inabe, N; Isobe, T; Jiang, DX; Jungclaus, A; Jung, HS; Jin, Y; Kameda, D; Kim, GD; Kim, Yong Kyun; Kojouharov, I; Kondev, FG; Kubo, T; Kurz, N; Kwon, YK; Li, XQ; Lou, JL; Lane, GJ; Li, CG; Luo, DW; Montaner-Piza, A; Moschner, K; Niu, CY; Naqvi, F; Niikura, M; Nishibata, H; Odahara, A; Orlandi, R; Patel, Z; Podolyak, Zs; Sumikama, T; Soderstrom, PA; Sakurai, H; Schaffner, H; Simpson, GS; Steiger, K; Suzuki, H; Taprogge, J; Takeda, H; Vajta, Zs; Wang, HK; Wu, J; Wendt, A; Wang, CG; Wu, HY; Wang, X; Wu, CG; Xu, C; Xu, ZY; Yagi, A; Ye, YL; Yoshinaga, K
- Issue Date
- May-2019
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW LETTERS, v.122, no.21, pp.1 - 6
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW LETTERS
- Volume
- 122
- Number
- 21
- Start Page
- 1
- End Page
- 6
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/14180
- DOI
- 10.1103/PhysRevLett.122.212502
- ISSN
- 0031-9007
- Abstract
- The beta-delayed gamma-ray spectroscopy of neutron-rich Ag-123,Ag-325 isotopes is investigated at the Radioactive Isotope Beam Factory of RIKEN, and the long-predicted 1/2(-) beta-emitting isomers in Ag-123,Ag-325 are identified for the first time. With the new experimental results, the systematic trend of energy spacing between the lowest 9/2(+) and 1/2(-) levels is extended in Ag isotopes up to N = 78, providing a clear signal for the reduction of the Z = 40 subshell gap in Ag towards N = 82. Shell-model calculations with the state-of-the-art V-MU plus M3Y spin-orbit interaction give a satisfactory description of the low-lying states in Ag-123,Ag-325. The tensor force is found to play a crucial role in the evolution of the size of the Z = 40 subshell gap. The observed inversion of the single-particle levels around Ag-123 can be well interpreted in terms of the monopole shift of the pi 1g(9/2) orbitals mainly caused by the increasing occupation of nu 1h(11/2) orbitals.
- Files in This Item
-
- Appears in
Collections - 서울 공과대학 > 서울 원자력공학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/14180)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.