Neutron star matter based on a parity doublet model including the $a_0(980)$ meson

Yuk Kei Kong, Takuya Minamikawa, Masayasu Harada

We study the effect of the isovector-scalar meson $a_0$(980) on the properties of nuclear matter and the neutron star (NS) matter by constructing a parity doublet model with includ…