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HK: Fachverband Physik der Hadronen und Kerne

HK 32: Structure and Dynamics of Nuclei VI

HK 32.6: Talk

Wednesday, February 28, 2018, 15:15–15:30, HZO 70

Hyperon single-particle and chemical potentials in nuclear matter from SU(3) chiral effective field theory — •Dominik Gerstung and Norbert Kaiser — Physik Department, Technische Universität München, D-85747 Garching, Germany

Brueckner theory is employed to calculate the single-particle potentials of nucleons and hyperons in nuclear matter. The underlying two-body interactions consist of the next-to-leading order chiral two-baryon potentials and effective density-dependent baryon-baryon interactions derived from the leading order chiral three-baryon forces. We compute the chemical potentials of neutrons and Λ(1116)-hyperons from the energy density of strongly interacting baryonic matter. The implications for the possible occurrence of strange baryons in neutron-star matter are discussed.

Work supported in part by DFG and NSFC (CRC110).