2 papers
nucl-th2026
Compact star and compact star matter properties from a baryonic extended linear sigma model with explicit chiral symmetry breaking
Yao Ma, Yong-Liang Ma, Lu-Qi Zhang
Based on a baryonic extended linear sigma model including explicit chiral symmetry breaking effect, the structure of neutron stars with the emergence of hyperons is investigated us…
nucl-th2025
Peak of sound velocity, scale symmetry, and nuclear force in baryonic matter
Lu-Qi Zhang, Yao Ma, Yong-Liang Ma
The sound velocity in homogeneous matter has fundamental significance as it relates to the stiffness of the equation of state of compact star matter. In this work, we investigate t…