Shape coexistence and isospin symmetry in A = 70 nuclei:Spectroscopy of the $T_z = -1$ nucleus $^{70}$Kr

Abstract

Excited states in the $T_z=-1$ nucleus $^{70}$Kr have been populated using inelastic scattering of a radioactive $^{70}$Kr beam as well as one- and two-neutron removal reactions from $^{71,72}$Kr at intermediate beam energies. The level scheme of $^{70}$Kr was constructed from the observed $\gamma$-ray transitions and coincidences. Tentative spin and parity assignments were made based on comparison with the mirror nucleus $^{70}$Se. A second $2^+$ state and a candidate for the corresponding $4^+_2$ state suggest shape coexistence in $^{70}$Kr.

Metadata

Item Type:	Article
Authors/Creators:	Wimmer, K. Korten, W. Arici, T. Doornenbal, P. Aguilera, P. Algora, A. Ando, T. Baba, H. Blank, B. Boso, A. Chen, S. (sc2950@york.ac.uk) Corsi, A. Davies, P. https://orcid.org/0000-0002-9003-0603 de Angelis, G. de France, G. Doherty, D. T. (dd768@york.ac.uk) Gerl, J. Gernhäuser, R. Jenkins, D. https://orcid.org/0000-0001-9895-3341 Koyama, S. Motobayashi, T. Nagamine, S. Niikura, M. Obertelli, A. Lubos, D. Rubio, B. Sahin, E. Saito, T. Y. Sakurai, H. Sinclair, L. Steppenbeck, D. Taniuchi, R. https://orcid.org/0000-0002-8057-7074 Wadsworth, R. https://orcid.org/0000-0002-4187-3102 Zielinska, M.
Copyright, Publisher and Additional Information:	© 2018 The Authors.
Keywords:	Gamma-ray spectroscopy,Mirror symmetry,Radioactive beams,Shape coexistence
Dates:	Accepted: 19 July 2018 Published (online): 6 September 2018 Published: 10 October 2018
Institution:	The University of York
Academic Units:	The University of York > Faculty of Sciences (York) > Health Sciences (York) The University of York > Faculty of Sciences (York) > Physics (York)
Funding Information:	Funder Grant number SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC) ST/P003885/1 SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC) ST/L005727/1
Depositing User:	Pure (York)
Date Deposited:	25 Sep 2018 10:30
Last Modified:	17 Apr 2025 08:00
Published Version:	https://doi.org/10.1016/j.physletb.2018.07.067
Status:	Published
Refereed:	Yes
Identification Number:	10.1016/j.physletb.2018.07.067
Related URLs:	http://www.scopus.com/inward/record.url?...
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:136178