English

$\Lambda^+_c$, $\Sigma_c$, $\Xi_c$ and $\Lambda_b$ hypernuclei in the quark-meson coupling model

Nuclear Theory 2009-11-10 v3 High Energy Physics - Experiment High Energy Physics - Phenomenology Nuclear Experiment

Abstract

Charmed (and bottom) hypernuclei are studied in the quark-meson coupling (QMC) model. This completes systematic studies of charmed (Λc+,Σc,Ξc\Lambda_c^+, \Sigma_c, \Xi_c), and Λb\Lambda_b hypernuclei in the QMC model. Effects of the Pauli blocking due to the underlying quark structure of baryons, and the ΣcNΛcN\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 Σc++\Sigma_c^{++} and Ξc+\Xi_c^+ hypernuclei are very unlikely to be formed, while the Λc+\Lambda_c^+, Ξc0\Xi_c^0 and Λb\Lambda_b hypernuclei are quite likely to be formed. For the Σc+\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 Σc0\Sigma_c^0 hypernuclei.

Keywords

Cite

@article{arxiv.nucl-th/0303073,
  title  = {$\Lambda^+_c$, $\Sigma_c$, $\Xi_c$ and $\Lambda_b$ hypernuclei in the quark-meson coupling model},
  author = {K. Tsushima and F. C. Khanna},
  journal= {arXiv preprint arXiv:nucl-th/0303073},
  year   = {2009}
}

Comments

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