Physics Letters B (Oct 2018)
Shape coexistence and isospin symmetry in A = 70 nuclei: Spectroscopy of the Tz = −1 nucleus 70Kr
- K. Wimmer,
- W. Korten,
- T. Arici,
- P. Doornenbal,
- P. Aguilera,
- A. Algora,
- T. Ando,
- H. Baba,
- B. Blank,
- A. Boso,
- S. Chen,
- A. Corsi,
- P. Davies,
- G. de Angelis,
- G. de France,
- D.T. Doherty,
- J. Gerl,
- R. Gernhäuser,
- D. Jenkins,
- S. Koyama,
- T. Motobayashi,
- S. Nagamine,
- M. Niikura,
- A. Obertelli,
- D. Lubos,
- B. Rubio,
- E. Sahin,
- T.Y. Saito,
- H. Sakurai,
- L. Sinclair,
- D. Steppenbeck,
- R. Taniuchi,
- R. Wadsworth,
- M. Zielinska
Affiliations
- K. Wimmer
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; Corresponding author.
- W. Korten
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- T. Arici
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany; Justus-Liebig-Universität Giessen, D-35392 Giessen, Germany
- P. Doornenbal
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- P. Aguilera
- Comisión Chilena de Energía Nuclear, Casilla 188-D, Santiago, Chile
- A. Algora
- Instituto de Fisica Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, Spain; Institute of Nuclear Research of the Hungarian Academy of Sciences, Debrecen H-4026, Hungary
- T. Ando
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- H. Baba
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- B. Blank
- CENBG, CNRS/IN2P3, Université de Bordeaux, F-33175 Gradignan, France
- A. Boso
- Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, Italy
- S. Chen
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- A. Corsi
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- P. Davies
- Department of Physics, University of York, YO10 5DD York, United Kingdom
- G. de Angelis
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
- G. de France
- GANIL, CEA/DSM-CNRS/IN2P3, F-14076 Caen Cedex 05, France
- D.T. Doherty
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- J. Gerl
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- R. Gernhäuser
- Physik Department, Technische Universität München, D-85748 Garching, Germany
- D. Jenkins
- Department of Physics, University of York, YO10 5DD York, United Kingdom
- S. Koyama
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- T. Motobayashi
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- S. Nagamine
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- M. Niikura
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- A. Obertelli
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- D. Lubos
- Physik Department, Technische Universität München, D-85748 Garching, Germany
- B. Rubio
- Instituto de Fisica Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, Spain
- E. Sahin
- Department of Physics, University of Oslo, PO Box 1048, Blindern, N-0316 Oslo, Norway
- T.Y. Saito
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- H. Sakurai
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- L. Sinclair
- Department of Physics, University of York, YO10 5DD York, United Kingdom
- D. Steppenbeck
- RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- R. Taniuchi
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- R. Wadsworth
- Department of Physics, University of York, YO10 5DD York, United Kingdom
- M. Zielinska
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- Journal volume & issue
-
Vol. 785
pp. 441 – 446
Abstract
Excited states in the Tz=−1 nucleus 70Kr have been populated using inelastic scattering of a radioactive 70Kr beam as well as one- and two-neutron removal reactions from 71,72Kr at intermediate beam energies. The level scheme of 70Kr was constructed from the observed γ-ray transitions and coincidences. Tentative spin and parity assignments were made based on comparison with the mirror nucleus 70Se. A second 2+ state and a candidate for the corresponding 42+ state suggest shape coexistence in 70Kr. Keywords: Radioactive beams, Gamma-ray spectroscopy, Mirror symmetry, Shape coexistence
