Strangeness S=-2 baryon-baryon interactions using chiral effective field theory
Nuclear Theory
2016-03-28 v1
Abstract
We derive the leading order strangeness S=-2 baryon-baryon interactions in chiral effective field theory. The potential consists of contact terms without derivatives and of one-pseudoscalar-meson exchanges. The contact terms and the couplings of the pseudoscalar mesons to the baryons are related via SU(3) flavor symmetry to the S=-1 hyperon-nucleon channels. We show that the chiral effective field theory predictions with natural values for the low-energy constants agree with the experimental information in the S=-2 sector.
Cite
@article{arxiv.0705.3753,
title = {Strangeness S=-2 baryon-baryon interactions using chiral effective field theory},
author = {H. Polinder and J. Haidenbauer and U. -G. Meißner},
journal= {arXiv preprint arXiv:0705.3753},
year = {2016}
}