Speaker
Gao Bikai
(Nagoya University)
Description
The nucleon mass includes the contribution from chiral symmetry breaking and chiral invariant mass. Parity doublet model is one of the effective chiral models that take these two contributions into consideration. For increasing baryon densities, the existence of such chiral invariant mass has large impacts on the density dependence of baryons masses as well as baryon-meson couplings. In previous work, we have analyzed models of two-flavors and studied the properties of neutron star. However, in high density region, it is necessary to analyze baryonic matter with hyperons.
