Self-consistent description of $Λ$ hypernuclei in the quark-meson coupling model

Details Self-consistent description of $Λ$ hypernuclei in the quark-meson coupling model Self-consistent description of $Λ$ hypernuclei in the quark-meson coupling model

1997-01-24

arxiv.org/abs/nucl-th/9701047v2

Phys.Lett.B411:9-18,1997; Erratum-ibid.B421:413,1998

Physics

Nuclear Physics

Nuclear Theory

13 pages, 5 Postscript figures, accepted version for Phys. Lett. B, also a few typos corrected and the references updated

Scientific paper

10.1016/S0370-2693(97)00944-1

The quark-meson coupling (QMC) model, which has been successfully used to describe the properties of both finite nuclei and infinite nuclear matter, is applied to a study of $\Lambda$ hypernuclei. With the assumption that the (self-consistent) exchanged scalar, and vector, mesons couple only to the u and d quarks, a very weak spin-orbit force in the $\Lambda$-nucleus interaction is achieved automatically. This is a direct consequence of the SU(6) quark model wave function of the $\Lambda$ used in the QMC model. Possible implications and extensions of the present investigation are also discussed.

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