학술논문
Shape coexistence and isospin symmetry in A = 70 nuclei: Spectroscopy of the Tz = −1 nucleus 70Kr
Document Type
article
Author
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
Source
Physics Letters B, Vol 785, Iss , Pp 441-446 (2018)
Subject
Language
English
ISSN
0370-2693
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