3 papers
nucl-th2024
Axion effects on quark matter and quark-matter cores in massive hybrid stars
He Liu, Yu-Heng Liu, Yong-Hang Yang +4
Using a three-flavor Nambu--Jona-Lasinio model to describe the charge-parity violating effects through axion field, we investigate the axion effects on quark matter and quark-matte…
hep-ph2023
Speed of sound and polytropic index in QCD matter
He Liu, Yong-Hang Yang, Chi Yuan +3
We investigate the speed of sound and polytropic index of quantum chromodynamics (QCD) matter in the full phase diagram based on a 3-flavor Polyakov-looped Nambu-Jona-Lasinio (pNJL…
nucl-th2023
Properties of quark matter and hybrid stars from a quasiparticle model
He Liu, Yong-Hang Yang, Yue Han +1
We investigate the properties of hybrid stars with the hadron-quark phase transition by using a quasiparticle model. Results from our study indicate that the coupling constant …