Effect of the Pauli exclusion principle in the electric dipole moment of Be 9 with | Δs|=1 interactions

Jehee Lee, Nodoka Yamanaka, Emiko Hiyama

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6 Citations (Scopus)

Abstract

We calculate the contribution of the |ΔS|=1K meson exchange process generated by the Cabibbo-Kobayashi-Maskawa matrix to the electric-dipole moment (EDM) of the Be9 nucleus by considering the αn-αΛ channel coupling. It is found that the effect of the Pauli exclusion principle is not important intermediate S=-1 state, and that the result is consistent with the EDM of Be9 calculated with the |ΔS|=1 interactions as a perturbation without considering the nucleus-hypernucleus mixing. Our result suggests that the effect of the |ΔS|=1 interactions is neither suppressed nor enhanced in nuclei, if the difference of binding energies between the nucleus and the hypernucleus is small compared with the hyperon-nucleon mass difference.

Original languageEnglish
Article number055503
JournalPhysical Review C
Volume99
Issue number5
DOIs
Publication statusPublished - 2019 May 15
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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