${\Lambda }_c^{+}$, ${\Sigma }_c$, ${\Xi }_c$ and ${\Lambda }_b$ hypernuclei in the quark-meson coupling model

Abstract

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.

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

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