This title appears in the Scientific Report : 2013 

Hyperon–nucleon interaction at next-to-leading order in chiral effective field theory
Haidenbauer, J. (Corresponding author)
Petschauer, S. / Kaiser, N. / Meißner, U. -G. / Nogga, A. / Weise, W.
Theorie der Starken Wechselwirkung; IAS-4
Theorie der starken Wechselwirkung; IKP-3
Nuclear physics / A, 915 (2013) S. 24 - 58
Amsterdam North-Holland Publ. Co. 2013
10.1016/j.nuclphysa.2013.06.008
Journal Article
Hadron Structure and Dynamics (HSD)
OpenAccess
OpenAccess
Please use the identifier: http://dx.doi.org/10.1016/j.nuclphysa.2013.06.008 in citations.
Please use the identifier: http://hdl.handle.net/2128/13257 in citations.
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.