Physics Letters B (Sep 2017)
Observation of a γ-decaying millisecond isomeric state in 128Cd80
- A. Jungclaus,
- H. Grawe,
- S. Nishimura,
- P. Doornenbal,
- G. Lorusso,
- G.S. Simpson,
- P.-A. Söderström,
- T. Sumikama,
- J. Taprogge,
- Z.Y. Xu,
- H. Baba,
- F. Browne,
- N. Fukuda,
- R. Gernhäuser,
- G. Gey,
- N. Inabe,
- T. Isobe,
- H.S. Jung,
- D. Kameda,
- G.D. Kim,
- Y.-K. Kim,
- I. Kojouharov,
- T. Kubo,
- N. Kurz,
- Y.K. Kwon,
- Z. Li,
- H. Sakurai,
- H. Schaffner,
- Y. Shimizu,
- K. Steiger,
- H. Suzuki,
- H. Takeda,
- Zs. Vajta,
- H. Watanabe,
- J. Wu,
- A. Yagi,
- K. Yoshinaga,
- G. Benzoni,
- S. Bönig,
- K.Y. Chae,
- L. Coraggio,
- J.-M. Daugas,
- F. Drouet,
- A. Gadea,
- A. Gargano,
- S. Ilieva,
- N. Itaco,
- F.G. Kondev,
- T. Kröll,
- G.J. Lane,
- A. Montaner-Pizá,
- K. Moschner,
- D. Mücher,
- F. Naqvi,
- M. Niikura,
- H. Nishibata,
- A. Odahara,
- R. Orlandi,
- Z. Patel,
- Zs. Podolyák,
- A. Wendt
Affiliations
- A. Jungclaus
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
- H. Grawe
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- S. Nishimura
- RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- P. Doornenbal
- RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- G. Lorusso
- RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- G.S. Simpson
- LPSC, Université Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut National Polytechnique de Grenoble, F-38026 Grenoble Cedex, France
- P.-A. Söderström
- RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- T. Sumikama
- Department of Physics, Tohoku University, Aoba, Sendai, Miyagi 980-8578, Japan
- J. Taprogge
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
- Z.Y. Xu
- RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- H. Baba
- RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- F. Browne
- School of Computing, Engineering and Mathematics, University of Brighton, Brighton BN2 4GJ, United Kingdom
- N. Fukuda
- RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- R. Gernhäuser
- Physik Department E12, Technische Universität München, D-85748 Garching, Germany
- G. Gey
- LPSC, Université Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut National Polytechnique de Grenoble, F-38026 Grenoble Cedex, France
- N. Inabe
- RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- T. Isobe
- RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- H.S. Jung
- Department of Physics, Chung-Ang University, Seoul 156-756, Republic of Korea
- D. Kameda
- RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- G.D. Kim
- Rare Isotope Science Project, Institute for Basic Science, Daejeon 305-811, Republic of Korea
- Y.-K. Kim
- Rare Isotope Science Project, Institute for Basic Science, Daejeon 305-811, Republic of Korea
- I. Kojouharov
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- T. Kubo
- RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- N. Kurz
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- Y.K. Kwon
- Rare Isotope Science Project, Institute for Basic Science, Daejeon 305-811, Republic of Korea
- Z. Li
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- H. Sakurai
- RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- H. Schaffner
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- Y. Shimizu
- RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- K. Steiger
- Physik Department E12, Technische Universität München, D-85748 Garching, Germany
- H. Suzuki
- RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- H. Takeda
- RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- Zs. Vajta
- MTA Atomki, P.O. Box 51, Debrecen H-4001, Hungary
- H. Watanabe
- RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- J. Wu
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- A. Yagi
- Department of Physics, Osaka University, Machikaneyama-machi 1-1, Osaka 560-0043 Toyonaka, Japan
- K. Yoshinaga
- Department of Physics, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, Japan
- G. Benzoni
- INFN, Sezione di Milano, via Celoria 16, I-20133 Milano, Italy
- S. Bönig
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- K.Y. Chae
- Department of Physics, Sungkyunkwan University, Suwon 440-746, Republic of Korea
- L. Coraggio
- Istituto Nazionale di Fisica Nucleare, Complesso Universitario di Monte S. Angelo, I-80126 Napoli, Italy
- J.-M. Daugas
- CEA, DAM, DIF, 91297 Arpajon cedex, France
- F. Drouet
- LPSC, Université Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut National Polytechnique de Grenoble, F-38026 Grenoble Cedex, France
- A. Gadea
- Instituto de F'sica Corpuscular, CSIC-Univ. of Valencia, E-46980 Paterna, Spain
- A. Gargano
- Istituto Nazionale di Fisica Nucleare, Complesso Universitario di Monte S. Angelo, I-80126 Napoli, Italy
- S. Ilieva
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- N. Itaco
- Istituto Nazionale di Fisica Nucleare, Complesso Universitario di Monte S. Angelo, I-80126 Napoli, Italy
- F.G. Kondev
- Nuclear Engineering Division, Argonne National Laboratory, Argonne, IL 60439, USA
- T. Kröll
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- G.J. Lane
- Department of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia
- A. Montaner-Pizá
- Instituto de F'sica Corpuscular, CSIC-Univ. of Valencia, E-46980 Paterna, Spain
- K. Moschner
- IKP, University of Cologne, D-50937 Cologne, Germany
- D. Mücher
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- F. Naqvi
- Wright Nuclear Structure Laboratory, Yale University, New Haven, CT 06520-8120, USA
- M. Niikura
- Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, 113-0033 Tokyo, Japan
- H. Nishibata
- Department of Physics, Osaka University, Machikaneyama-machi 1-1, Osaka 560-0043 Toyonaka, Japan
- A. Odahara
- Department of Physics, Osaka University, Machikaneyama-machi 1-1, Osaka 560-0043 Toyonaka, Japan
- R. Orlandi
- Instituut voor Kern- en StralingsFysica, K.U. Leuven, B-3001 Heverlee, Belgium
- Z. Patel
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
- Zs. Podolyák
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
- A. Wendt
- IKP, University of Cologne, D-50937 Cologne, Germany
- DOI
- https://doi.org/10.1016/j.physletb.2017.07.006
- Journal volume & issue
-
Vol. 772,
no. C
pp. 483 – 488
Abstract
A new high-spin isomer in the neutron-rich nucleus 128Cd was populated in the projectile fission of a 238U beam at the Radioactive Isotope Beam Factory at RIKEN. A half-life of T1/2=6.3(8) ms was measured for the new state which was tentatively assigned a spin/parity of (15−). The experimental results are compared to shell model calculations performed using state-of-the-art realistic effective interactions and to the neighbouring nucleus 129Cd. In the present experiment no evidence was found for the decay of a 18+ E6 spin-trap isomer, based on the complete alignment of the two-neutron and two-proton holes in the 0h11/2 and the 0g9/2 orbit, respectively, which is predicted to exist by the shell model.
Keywords
