Impurity effect of Λ hyperon on shape-coexistence nucleus 44S in the energy functional based Collective Hamiltonian

H. Mei, Z. P. Li, J. M. Yao, K. Hagino

研究成果: Article査読

2 被引用数 (Scopus)

抄録

The nonrelativistic Skyrme energy density functional (EDF) based collective Hamiltonian, that takes into account dynamical correlations related to the restoration of broken symmetries and fluctuations of quadrupole collective variables, is applied to quantitatively study the impurity effect of Λ hyperon on the collectivity of 44S. Several Skyrme forces for both the nucleonnucleon (NN) and Λ-nucleon (ΛN) interactions are used. The influence of pairing strengths on the polarization effect of Λ hyperon is also examined. It is found that although these Skyrme forces with different pairing strengths give somewhat different low-lying spectra for 44S, all of them give similar and generally small size of Λ reduction effect (within 5%) on the collective properties.

本文言語English
論文番号1250024
ジャーナルInternational Journal of Modern Physics E
21
5
DOI
出版ステータスPublished - 2012 5

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 物理学および天文学(全般)

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