Dense Baryonic Matter and Strangeness in Neutron Stars

Abstract

Recent developments of chiral effective field theory (ChEFT) applications to nuclear and neutron matter are summarized, with special emphasis on a (non-perturbative) extension using functional renormalisation group methods. Topics include: nuclear thermodynamics, extrapolations to dense baryonic matter and constraints from neutron star observables. Hyperon-nuclear interactions derived from SU(3) will be discussed with reference to the "hyperon puzzle" in neutron star matter.

Comments: 17 pages, 7 figures; invited talk at the Int. Conf. on Quarks and Nuclear Physics (QNP 2018), Tsukuba, Japan; to appear in JPS Conf. Proc