Tensor coupling effects on spin symmetry in the anti-lambda spectrum of hypernuclei

Chun Yan Song, Jiang Ming Yao, Jie Meng

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Effects of Λω-tensor coupling on the spin symmetry of Λ spectra in Λ-nucleus systems are studied using relativistic mean-field theory. Taking 12C+Λ as an example, it is found that the tensor coupling enlarges the spin-orbit splittings of Λ by a factor of 5 but has a negligible effect on the wave functions of Λ. Similar conclusions are observed in other Λ-nuclei, including 16O+Λ, 40Ca+Λ and 208Pb+Λ. It is indicated that the spin symmetry in anti-lambda-nucleus systems is still a good approximation irrespective of the tensor coupling.

Original languageEnglish
Article number092101
JournalChinese Physics Letters
Volume28
Issue number9
DOIs
Publication statusPublished - 2011 Sep 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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