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

Urban, W.; Rząca-Urban, T.; Wiśniewski, J.; Smith, A. G.; Simpson, G. S.; Ahmad, I.

doi:10.1103/PhysRevC.100.014319

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

Journal Article · 26 July 2019 · Physical Review C

DOI: https://doi.org/10.1103/PhysRevC.100.014319 · OSTI ID:1558099

Urban, W. ^[1]; Rząca-Urban, T. ^[1]; Wiśniewski, J. ^[1]; Smith, A. G. ^[2]; Simpson, G. S. ^[2]; Ahmad, I. ^[3]

Univ. of Warsaw, Warsaw (Poland)
Univ. of Manchester, Manchester (United Kingdom)
Argonne National Lab. (ANL), Argonne, IL (United States)

New results obtained in this work from measurements of γ radiation following fission of ²⁴⁸Cm and ²⁵²Cf, performed using Eurogam2 and Gammasphere arrays, respectively, reveal excitations corresponding to γ vibrations and triaxial deformation present in ¹⁰⁰Zr and ¹⁰²Zr 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.

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Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP); USDOE

Grant/Contract Number:: AC02-06CH11357

OSTI ID:: 1558099

Alternate ID(s):: OSTI ID: 1545453

Journal Information:: Physical Review C, Vol. 100, Issue 1; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 13 works

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