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Proton Shell Evolution below
Chen, Z Q; Li, Z H; Hua, H; Watanabe, H; Yuan, C X; Zhang, S Q; Lorusso, G; Nishimura, S; Baba, H; Browne, F; Benzoni, G; Chae, K Y; Crespi, F C L; Doornenbal, P; Fukuda, N; Gey, G; Gernhäuser, R; Inabe, N; Isobe, T; Jiang, D X; Jungclaus, A; Jung, H S; Jin, Y; Kameda, D; Kim, G D; Kim, Y K; Kojouharov, I; Kondev, F G; Kubo, T; Kurz, N; Kwon, Y K; Li, X Q; Lou, J L; Lane, G J; Li, C G; Luo, D W; Montaner-Pizá, A; Moschner, K; Niu, C Y; Naqvi, F; Niikura, M; Nishibata, H; Odahara, A; Orlandi, R; Patel, Z; Podolyák, Zs; Sumikama, T; Söderström, P-A; Sakurai, H; Schaffner, H.
Affiliation
  • Chen ZQ; School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
  • Li ZH; School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
  • Hua H; School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
  • Watanabe H; IRCNPC, School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China.
  • Yuan CX; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
  • Zhang SQ; Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Zhuhai, 519082, Guangdong, China.
  • Lorusso G; School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
  • Nishimura S; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
  • Baba H; National Physical Laboratory, NPL, Teddington, Middlesex TW11 0LW, United Kingdom.
  • Browne F; Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom.
  • Benzoni G; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
  • Chae KY; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
  • Crespi FCL; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
  • Doornenbal P; School of Computing, Engineering and Mathematics, University of Brighton, Brighton, BN2 4GJ, United Kingdom.
  • Fukuda N; INFN, Sezione di Milano, via Celoria 16, I-20133 Milano, Italy.
  • Gey G; Department of Physics, Sungkyunkwan University, Suwon 440-746, Republic of Korea.
  • Gernhäuser R; INFN, Sezione di Milano, via Celoria 16, I-20133 Milano, Italy.
  • Inabe N; Dipartimento di Fisica, Universitá di Milano, via Celoria 16, I-20133 Milano, Italy.
  • Isobe T; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
  • Jiang DX; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
  • Jungclaus A; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
  • Jung HS; LPSC, Universite Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut National Polytechnique de Grenoble, F-38026 Grenoble Cedex, France.
  • Jin Y; Institut Laue-Langevin, B.P. 156, F-38042 Grenoble Cedex 9, France.
  • Kameda D; Physik Department, Technische Universität München, D-85748 Garching, Germany.
  • Kim GD; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
  • Kim YK; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
  • Kojouharov I; School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
  • Kondev FG; Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain.
  • Kubo T; Department of Physics, Chung-Ang University, Seoul 156-756, Republic of Korea.
  • Kurz N; Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA.
  • Kwon YK; School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
  • Li XQ; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
  • Lou JL; Rare Isotope Science Project, Institute for Basic Science, Daejeon 305-811, Republic of Korea.
  • Lane GJ; Rare Isotope Science Project, Institute for Basic Science, Daejeon 305-811, Republic of Korea.
  • Li CG; Department of Nuclear Engineering, Hanyang University, Seoul 133-791, Republic of Korea.
  • Luo DW; GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany.
  • Montaner-Pizá A; Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA.
  • Moschner K; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
  • Niu CY; GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany.
  • Naqvi F; Rare Isotope Science Project, Institute for Basic Science, Daejeon 305-811, Republic of Korea.
  • Niikura M; School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
  • Nishibata H; School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
  • Odahara A; Department of Nuclear Physics, R.S.P.E., Australian National University, Canberra, Australian Capital Territory 0200, Australia.
  • Orlandi R; School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
  • Patel Z; School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
  • Podolyák Z; IFIC, CSIC-Universidad de Valencia, A.C. 22085, E 46071, Valencia, Spain.
  • Sumikama T; Institut für Kernphysik, Universität zu Köln, Zülpicher Strasse 77, D-50937 Köln, Germany.
  • Söderström PA; School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
  • Sakurai H; Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06520-8120, USA.
  • Schaffner H; Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, 113-0033 Tokyo, Japan.
Phys Rev Lett ; 122(21): 212502, 2019 May 31.
Article in En | MEDLINE | ID: mdl-31283301
ABSTRACT
The ß-delayed γ-ray spectroscopy of neutron-rich ^{123,125}Ag isotopes is investigated at the Radioactive Isotope Beam Factory of RIKEN, and the long-predicted 1/2^{-} ß-emitting isomers in ^{123,125}Ag 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 ^{123,125}Ag. 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 ^{123}Ag can be well interpreted in terms of the monopole shift of the π1g_{9/2} orbitals mainly caused by the increasing occupation of ν1h_{11/2} orbitals.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Type of study: Prognostic_studies Language: En Journal: Phys Rev Lett Year: 2019 Type: Article Affiliation country: China
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Full text: 1 Collection: 01-internacional Database: MEDLINE Type of study: Prognostic_studies Language: En Journal: Phys Rev Lett Year: 2019 Type: Article Affiliation country: China