Low-lying states of ruthenium isotopes within the nucleon pair approximation

H. Jiang, B. Li, and Y. Lei
Phys. Rev. C 93, 054323 – Published 24 May 2016

Abstract

Low-lying states of even-even and odd-mass ruthenium isotopes with mass numbers from 95 to 102, including level schemes, electric quadrupole and magnetic dipole moments, and E2 transition rates, are studied within the framework of the nucleon pair approximation (NPA) of the shell model, by using the phenomenological pairing plus quadrupole interactions. Good agreement is obtained between the calculated results and experimental data. The interesting behaviors of g(J1+) factors versus nuclear spin J (and mass number A) in even-even Ru96102 nuclei are analyzed. The dominant configurations of yrast low-lying states in odd-mass Ru95101 isotopes are discussed in the collective nucleon-pair subspace. The calculated electric quadrupole moments and magnetic moments of low-lying states, many of which have not yet been measured for these nuclei, are useful for future studies.

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  • Received 29 August 2015
  • Revised 16 April 2016

DOI:https://doi.org/10.1103/PhysRevC.93.054323

©2016 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

H. Jiang1,2,3,*, B. Li1, and Y. Lei4

  • 1School of Arts and Sciences, Shanghai Maritime University, Shanghai 201306, China
  • 2Shanghai Key Laboratory of Particle Physics and Cosmology and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
  • 3RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
  • 4Key Laboratory of Neutron Physics, Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China

  • *Corresponding author: huijiang@shmtu.edu.cn

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Issue

Vol. 93, Iss. 5 — May 2016

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