Probing the ΞN interaction through inversion of spin-doublets in ΞNαα nuclei

E. Hiyama, M. Isaka, T. Doi, T. Hatsuda

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We propose to obtain information on the spin-isospin dependence of the ΞN interaction through the energy levels of ΞNα and ΞNαα systems, with α being a spectator to attract the ΞN pair without changing its spin-isospin structure. By using the Gaussian expansion method with the state-of-the-art ΞN potential obtained from lattice QCD calculations, it is found that ΞNαα has spin-doublet bound states with Jπ=1- and 2- in both isospin triplet and singlet channels. The inversion of the 1 - 2- spin-doublet between the iso-triplet and the iso-singlet is found to be strongly correlated with the relative strengths of the ΞN interaction in the S011, S113, S031, and S133 channels. The (K-,K+) and (K-,K0) reactions on the B10 target are proposed to produce those bound states.

Original languageEnglish
Article number064318
JournalPhysical Review C
Issue number6
Publication statusPublished - 2022 Dec

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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