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Understanding nuclear dynamics in the SD-pair shell model: From pre-vibration to collective rotation

  • Bing-Cheng He
  • Si-Yao Zhang
  • Yu ZhangEmail author
  • Yan-An Luo
  • F. Pan
  • J. P. Draayer
Regular Article - Theoretical Physics
  • 24 Downloads

Abstract.

Influences of some important residual interactions considered in the shell model on nuclear dynamics and the shape phase evolution have been investigated in the SD-pair shell model for an identical nucleon system. The results indicate that the collective modes including the spherical vibration, prolate rotation, and X(5)-like critical dynamics are mainly driven by the competition between the monopole-pairing interaction and the quadrupole-quadrupole interaction, and the main features of the U(5)-SU(3) phase transition can be well reproduced within the SD-pair model. In addition, it is also shown that the quadrupole-pairing interaction cannot be ignored in reproducing an ideal rotational spectrum with a realistic single-particle configuration.

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Copyright information

© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Bing-Cheng He
    • 1
  • Si-Yao Zhang
    • 1
  • Yu Zhang
    • 2
    Email author
  • Yan-An Luo
    • 1
  • F. Pan
    • 2
    • 3
  • J. P. Draayer
    • 3
  1. 1.School of PhysicsNankai UniversityTianjinP. R. China
  2. 2.Department of PhysicsLiaoning Normal UniversityDalianP. R. China
  3. 3.Department of Physics and AstronomyLouisiana State UniversityBaton RougeUSA

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