First observation of γ -soft and triaxial bands in Zr isotopes

Research output: Contribution to journalArticlepeer-review

  • External authors:
  • W. Urban
  • T. Rzaca-Urban
  • J. Wiśniewski
  • G. S. Simpson
  • I. Ahmad


New results obtained in this work from measurements of γ radiation following fission of Cm248 and Cf252, performed using Eurogam2 and Gammasphere arrays, respectively, reveal excitations corresponding to γ vibrations and triaxial deformation present in Zr100 and Zr102 nuclei. This is the first observation of nonaxial bands in Zr isotopes. Such excitations probably occur due to competing prolate and oblate configurations, identified recently in these nuclei. Evolution of γ softness and triaxiality in Zr isotopes is observed in the function of the neutron number.

Bibliographical metadata

Original languageEnglish
Article number014319
JournalPhysical Review C
Issue number1
Publication statusPublished - 26 Jul 2019