Hyperon Single-Particle Potentials Calculated from SU6 Quark-Model Baryon-Baryon Interactions
Nuclear Theory
2009-10-31 v1
Abstract
Using the SU6 quark-model baryon-baryon interaction recently developed by the Kyoto-Niigata group, we calculate NN, Lambda N and Sigma N G-matrices in ordinary nuclear matter. This is the first attempt to discuss the Lambda and Sigma single-particle potentials in nuclear medium, based on the realistic quark-model potential. The Lambda potential has the depth of more than 40 MeV, which is more attractive than the value expected from the experimental data of Lambda-hypernuclei. The Sigma potential turns out to be repulsive, the origin of which is traced back to the strong Pauli repulsion in the Sigma N (I=3/2) ^3S_1 state.
Keywords
Cite
@article{arxiv.nucl-th/9912059,
title = {Hyperon Single-Particle Potentials Calculated from SU6 Quark-Model Baryon-Baryon Interactions},
author = {M. Kohno and Y. Fujiwara and T. Fujita and C. Nakamoto and Y. Suzuki},
journal= {arXiv preprint arXiv:nucl-th/9912059},
year = {2009}
}
Comments
20 pages, 5 figures