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Effects of deformation, pairing and tensor correlation on the evolution of bubble structure within the Skyrme-Hartree-Fock method

  • Zhao-Jun Luo
  • Kun Yu
  • Xian-Rong Zhou
  • Ji-Wei Cui
  • Hiroyuki Sagawa
Regular Article - Theoretical Physics
  • 36 Downloads

Abstract.

We study the effects of deformation, tensor and pairing correlation on the evolution of bubble structure in 46Ar, 22O and Cl isotopes using a deformed Skyrme-Hartree-Fock model with BCS and Lipkin-Nogami number projection approximation. The parameter SLy5 of the Skyrme energy functionals is adopted together with various kinds of density-dependent pairing interaction and various kinds of tensor interaction. In the spherical case, considering pairing correlation (IS + IV) or switch off pairing, there is a clear bubble structure in 46Ar with interaction SLy5 + Tw, respectively. For 46Ar, we find that deformation weakens the bubble structure strongly, and pairing correlation also weakens the bubble in 46Ar and 22O , respectively. On the other hand, the SLy5 + Tw + IS + IV interaction evolves the bubble structure of neutron-rich Cl isotopes 43-47Cl in deformed cases because the occupation probability of states \( 2s_{1/2}\) decreases from 1 to 0.5.

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Copyright information

© SIF, Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Zhao-Jun Luo
    • 1
  • Kun Yu
    • 1
    • 2
  • Xian-Rong Zhou
    • 1
    • 2
  • Ji-Wei Cui
    • 3
  • Hiroyuki Sagawa
    • 4
    • 5
  1. 1.Department of PhysicsEast China Normal UniversityShanghaiChina
  2. 2.Department of Physics and Institute of Theoretical Physics and AstrophysicsXiamen UniversityXiamenChina
  3. 3.School of Physics and Optoelectronic EngineeringXidian UniversityXi’anChina
  4. 4.RIKEN, Nishina CenterWakoJapan
  5. 5.Center for Mathematics and PhysicsUniversity of Aizu, Aizu-WakamatsuFukushimaJapan

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