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arXiv · 1804.06797

A quasi-particle model with a phenomenological critical point

Hong-Hao Ma·Danuce Marcele Dudek·Kai Lin·Wei-Liang Qian·Yogiro Hama·Takeshi Kodama
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Abstract

A hybrid parameterization of a quasiparticle equation of state is proposed, with a critical point implemented phenomenologically. On the one hand, a quasiparticle model with finite chemical potential is employed for the quark-gluon plasma phase, calibrated to the lattice quantum chromodynamics data. On the other hand, the low-temperature region for the hadronic phase of the matter is described by the hadronic resonance gas model with excluded volume correction. A particular interpolation scheme is adopted so that the phase transition is a smooth crossover for small chemical potential. A phenomenological critical pointed is implemented beyond which the phase transition becomes that of the first order.

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Hong-Hao Ma, Danuce Marcele Dudek, Kai Lin, Wei-Liang Qian, Yogiro Hama, Takeshi Kodama. 2018-04-18. A quasi-particle model with a phenomenological critical point. https://arxiv.org/abs/1804.06797

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