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arXiv · 1312.4467

Hyperon-nucleon interaction and baryonic contact terms in SU(3) chiral effective field theory

Stefan Petschauer
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Abstract

In this proceeding we summarize results for baryonic contact terms derived within SU(3) chiral effective field theory. The four-baryon contact terms, necessary for the description of the hyperon-nucleon interaction, include SU(3) symmetric and explicit chiral symmetry breaking terms. They also include four-baryon contact terms involving pseudoscalar mesons, which become important for three-body forces. Furthermore we derive the leading order six-baryon contact terms in the non-relativistic limit and study their contribution to the $\Lambda NN$ three-body contact interaction. These results could play an important role in studies of hypernuclei or hyperons in nuclear matter.

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Stefan Petschauer. 2013-12-16. Hyperon-nucleon interaction and baryonic contact terms in SU(3) chiral effective field theory. https://arxiv.org/abs/1312.4467

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