Hypernuclei in the quark-meson coupling model
Abstract
We present results of hypernuclei calculated in the latest quark-meson coupling (QMC) model, where the effect of the mean scalar field in-medium on the one-gluon exchange hyperfine interaction, is also included self-consistently. The extra repulsion associated with this increased hyperfine interaction in-medium completely changes the predictions for {\Sigma} hypernuclei. Whereas in the earlier version of QMC they were bound by an amount similar to {\Lambda} hypernuclei, they are unbound in the latest version of QMC, in qualitative agreement with the experimental absence of such states.
Cite
@article{arxiv.1004.2965,
title = {Hypernuclei in the quark-meson coupling model},
author = {K. Tsushima and P. A. M. Guichon},
journal= {arXiv preprint arXiv:1004.2965},
year = {2011}
}
Comments
6 pages, 3 figures, to be published in the proceedings of Achievements and New Directions in Subatomic Physics: Workshop in Honour of Tony Thomas' 60th Birthday, Adelaide, South Australia, 15-19 Feb 2010