$Λ^+_c$, $Σ_c$, $Ξ_c$ and $Λ_b$ hypernuclei in the quark-meson coupling model

Details $Λ^+_c$, $Σ_c$, $Ξ_c$ and $Λ_b$ hypernuclei in the quark-meson coupling model $Λ^+_c$, $Σ_c$, $Ξ_c$ and $Λ_b$ hypernuclei in the quark-meson coupling model

2003-03-29

arxiv.org/abs/nucl-th/0303073v3

J.Phys. G30 (2004) 1765-1786

Physics

Nuclear Physics

Nuclear Theory

Latex, 27 pages, 6 figures, version to appear in J. Phys. G

Scientific paper

10.1088/0954-3899/30/12/001

Charmed (and bottom) hypernuclei are studied in the quark-meson coupling (QMC) model. This completes systematic studies of charmed ($\Lambda_c^+, \Sigma_c, \Xi_c$), and $\Lambda_b$ hypernuclei in the QMC model. Effects of the Pauli blocking due to the underlying quark structure of baryons, and the $\Sigma_c N - \Lambda_c N$ channel coupling are phenomenologically taken into account at the hadronic level in the same way as those included for strange hypernuclei. Our results suggest that the $\Sigma_c^{++}$ and $\Xi_c^+$ hypernuclei are very unlikely to be formed, while the $\Lambda_c^+$, $\Xi_c^0$ and $\Lambda_b$ hypernuclei are quite likely to be formed. For the $\Sigma_c^+$ hypernuclei, the formation probability is non-zero though small. A detailed analysis is also made about the phenomenologically introduced Pauli blocking and channel coupling effects for the $\Sigma_c^0$ hypernuclei.

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