title: 1p3/2 proton-hole state in 132Sn and the shell structure along N = 82.
abstract: A low-lying state in 131In82, the one-proton hole nucleus with respect to double magic 132Sn, was observed by its γ decay to the Iπ=1/2- β-emitting isomer. We identify the new state at an excitation energy of Ex=1353  keV, which was populated both in the β decay of 131Cd83 and after β-delayed neutron emission from 132Cd84, as the previously unknown πp3/2 single-hole state with respect to the 132Sn core. Exploiting this crucial new experimental information, shell-model calculations were performed to study the structure of experimentally inaccessible N=82 isotones below 132Sn. 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.
authors.affiliation: Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain and Departamento de Física Teórica, Universidad Autónoma de Madrid, E-28049 Madrid, Spain and RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
authors.forename: J
authors.initials: J
authors.lastname: Taprogge
authors.affiliation: Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Jungclaus
authors.affiliation: GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Grawe
authors.affiliation: RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Nishimura
authors.affiliation: RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
authors.forename: P
authors.initials: P
authors.lastname: Doornenbal
authors.affiliation: RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
authors.forename: G
authors.initials: G
authors.lastname: Lorusso
authors.affiliation: LPSC, Université Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut National Polytechnique de Grenoble, F-38026 Grenoble Cedex, France.
authors.forename: G S
authors.initials: GS
authors.lastname: Simpson
authors.affiliation: RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
authors.forename: P-A
authors.initials: PA
authors.lastname: Söderström
authors.affiliation: Department of Physics, Tohoku University, Aoba, Sendai, Miyagi 980-8578, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Sumikama
authors.affiliation: Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, 113-0033 Tokyo, Japan.
authors.forename: Z Y
authors.initials: ZY
authors.lastname: Xu
authors.affiliation: RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Baba
authors.affiliation: RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan and School of Computing, Engineering and Mathematics, University of Brighton, Brighton BN2 4JG, United Kingdom.
authors.forename: F
authors.initials: F
authors.lastname: Browne
authors.affiliation: RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Fukuda
authors.affiliation: Physik Department E12, Technische Universität München, D-85748 Garching, Germany.
authors.forename: R
authors.initials: R
authors.lastname: Gernhäuser
authors.affiliation: RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan and LPSC, Université Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut National Polytechnique de Grenoble, F-38026 Grenoble Cedex, France and Institut Laue-Langevin, B.P. 156, F-38042 Grenoble Cedex 9, France.
authors.forename: G
authors.initials: G
authors.lastname: Gey
authors.affiliation: RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Inabe
authors.affiliation: RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Isobe
authors.affiliation: Department of Physics, Chung-Ang University, Seoul 156-756, Republic of Korea.
authors.forename: H S
authors.initials: HS
authors.lastname: Jung
authors.affiliation: RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
authors.forename: D
authors.initials: D
authors.lastname: Kameda
authors.affiliation: Rare Isotope Science Project, Institute for Basic Science, Daejeon 305-811, Republic of Korea.
authors.forename: G D
authors.initials: GD
authors.lastname: Kim
authors.affiliation: Rare Isotope Science Project, Institute for Basic Science, Daejeon 305-811, Republic of Korea and Department of Nuclear Engineering, Hanyang University, Seoul 133-791, Republic of Korea.
authors.forename: Y-K
authors.initials: YK
authors.lastname: Kim
authors.affiliation: GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany.
authors.forename: I
authors.initials: I
authors.lastname: Kojouharov
authors.affiliation: RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Kubo
authors.affiliation: GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany.
authors.forename: N
authors.initials: N
authors.lastname: Kurz
authors.affiliation: Rare Isotope Science Project, Institute for Basic Science, Daejeon 305-811, Republic of Korea.
authors.forename: Y K
authors.initials: YK
authors.lastname: Kwon
authors.affiliation: School of Physics and State key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
authors.forename: Z
authors.initials: Z
authors.lastname: Li
authors.affiliation: RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan and Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, 113-0033 Tokyo, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Sakurai
authors.affiliation: GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Schaffner
authors.affiliation: Physik Department E12, Technische Universität München, D-85748 Garching, Germany.
authors.forename: K
authors.initials: K
authors.lastname: Steiger
authors.affiliation: RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Suzuki
authors.affiliation: RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Takeda
authors.affiliation: RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan and MTA Atomki, P.O. Box 51, Debrecen H-4001, Hungary.
authors.forename: Zs
authors.initials: Z
authors.lastname: Vajta
authors.affiliation: RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Watanabe
authors.affiliation: RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan and School of Physics and State key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.
authors.forename: J
authors.initials: J
authors.lastname: Wu
authors.affiliation: Department of Physics, Osaka University, Machikaneyama-machi 1-1, Osaka 560-0043 Toyonaka, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Yagi
authors.affiliation: Department of Physics, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Yoshinaga
authors.affiliation: INFN, Sezione di Milano, via Celoria 16, I-20133 Milano, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Benzoni
authors.affiliation: Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Bönig
authors.affiliation: Department of Physics, Sungkyunkwan University, Suwon 440-746, Republic of Korea.
authors.forename: K Y
authors.initials: KY
authors.lastname: Chae
authors.affiliation: Istituto Nazionale di Fisica Nucleare, Complesso Universitario di Monte S. Angelo, I-80126 Napoli, Italy.
authors.forename: L
authors.initials: L
authors.lastname: Coraggio
authors.affiliation: Istituto Nazionale di Fisica Nucleare, Complesso Universitario di Monte S. Angelo, I-80126 Napoli, Italy and Dipartimento di Fisica, Università di Napoli Federico II, Complesso Universitario di Monte S. Angelo, I-80126 Napoli, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Covello
authors.affiliation: CEA, DAM, DIF, 91297 Arpajon cedex, France.
authors.forename: J-M
authors.initials: JM
authors.lastname: Daugas
authors.affiliation: LPSC, Université Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut National Polytechnique de Grenoble, F-38026 Grenoble Cedex, France.
authors.forename: F
authors.initials: F
authors.lastname: Drouet
authors.affiliation: Instituto de Fsica Corpuscular, CSIC-University of Valencia, E-46980 Paterna, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Gadea
authors.affiliation: Istituto Nazionale di Fisica Nucleare, Complesso Universitario di Monte S. Angelo, I-80126 Napoli, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Gargano
authors.affiliation: Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Ilieva
authors.affiliation: Nuclear Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
authors.forename: F G
authors.initials: FG
authors.lastname: Kondev
authors.affiliation: Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany.
authors.forename: T
authors.initials: T
authors.lastname: Kröll
authors.affiliation: Department of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, Australian Capital Territory 0200, Australia.
authors.forename: G J
authors.initials: GJ
authors.lastname: Lane
authors.affiliation: Instituto de Fsica Corpuscular, CSIC-University of Valencia, E-46980 Paterna, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Montaner-Pizá
authors.affiliation: IKP, University of Cologne, D-50937 Cologne, Germany.
authors.forename: K
authors.initials: K
authors.lastname: Moschner
authors.affiliation: Physik Department E12, Technische Universität München, D-85748 Garching, Germany.
authors.forename: D
authors.initials: D
authors.lastname: Mücher
authors.affiliation: Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06520-8120, USA.
authors.forename: F
authors.initials: F
authors.lastname: Naqvi
authors.affiliation: Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, 113-0033 Tokyo, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Niikura
authors.affiliation: Department of Physics, Osaka University, Machikaneyama-machi 1-1, Osaka 560-0043 Toyonaka, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Nishibata
authors.affiliation: Department of Physics, Osaka University, Machikaneyama-machi 1-1, Osaka 560-0043 Toyonaka, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Odahara
authors.affiliation: Instituut voor Kern- en StralingsFysica, K.U. Leuven, B-3001 Heverlee, Belgium and Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan.
authors.forename: R
authors.initials: R
authors.lastname: Orlandi
authors.affiliation: Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom.
authors.forename: Z
authors.initials: Z
authors.lastname: Patel
authors.affiliation: Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom.
authors.forename: Zs
authors.initials: Z
authors.lastname: Podolyák
authors.affiliation: IKP, University of Cologne, D-50937 Cologne, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Wendt