Structure of 0+ excitations in the mass A≈100 region: 02+ bands in Sr 98 and Zr 100

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

Research output: Contribution to journalArticlepeer-review

Abstract

02+ bands in Sr98 and Zr100, populated in spontaneous fission of Cm248 and Cf252, have been studied using the Eurogam2 and Gammasphere arrays. Phenomenological classification of excited 0+ levels in even-even nuclei of the A≈100 region into four categories is presented and an interpretation for each category is proposed. Highly deformed 01+ ground states and low-energy 02+ levels in both nuclei are probably due to the 2p-2h excitation of two neutrons from the 9/2+[404] extruder to the low-ω prolate and the 11/2-[505] oblate orbitals originating from the h11/2 shell, respectively. Candidates for 0+, β vibrational states in A≈100 region are suggested at N>60.

Original languageEnglish
Article number064325
JournalPhysical Review C
Volume99
Issue number6
Early online date21 Jun 2019
DOIs
Publication statusPublished - 2019

Research Beacons, Institutes and Platforms

  • Dalton Nuclear Institute

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