Deformation and weak decay of λ hypernuclei

K. Hagino, Myaing Thi Win, Y. Nakagawa

研究成果: Article査読

3 被引用数 (Scopus)

抄録

We use the self-consistent mean-field theory to discuss the ground state and decay properties of Λ hypernuclei. We first discuss the deformation of Λ hypernuclei using the relativistic mean-field (RMF) approach. We show that, although most of the hypernuclei have a similar deformation parameter to the core nucleus, the shape of 28Si is drastically altered, from oblately deformed to spherical, if a Λ particle is added to this nucleus. We then discuss the pionic weak decay of neutron-rich Λ hypernuclei using the Skyrme Hartree-Fock + BCS method. We show that, for a given isotope chain, the decay rate increases as a function of mass number, due to the strong neutron-proton interaction.

本文言語English
ページ(範囲)2552-2557
ページ数6
ジャーナルInternational Journal of Modern Physics E
19
12
DOI
出版ステータスPublished - 2010 12月

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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