%0 Journal Article
%T Hyperon-nucleon interaction at next-to-leading order in chiral effective field theory
%A Haidenbauer
%A J.
%A Petschauer
%A S.
%A Kaiser
%A N.
%A Mei ner
%A U. -G.
%A Nogga
%A A.
%A Weise
%A W.
%J High Energy Physics - Phenomenology
%D 2013
%I 
%X Results for the Lambda N and Sigma N interactions obtained at next-to-leading order in chiral effective field theory are reported. At the order considered there are contributions from one- and two-pseudoscalar-meson exchange diagrams and from four-baryon contact terms without and with two derivatives. SU(3) flavor symmetry is imposed for constructing the hyperon-nucleon interaction while the explicit SU(3) symmetry breaking by the physical masses of the pseudoscalar mesons (pi, K, eta) is taken into account. An excellent description of the hyperon-nucleon system can be achieved at next-to-leading order. It is on the same level of quality as the one obtained by the most advanced phenomenological hyperon-nucleon interaction models.
%U http://arxiv.org/abs/1304.5339