Quark-hadron phase transition in a three flavor PNJL model

14th International Conference on Strangeness in Quark Matter

Yamazaki, Kanako^1 ; Matsui, T.^1

Institute of Physics, University of Tokyo, Komaba, 153-8902 Tokyo, Japan^1

关键词: Collective modes;    Equation of state;    Low temperatures;    Nambu-Jona-Lasinio model;    Phase Change;    Quark-hadron phase transitions;    Temperature increase;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/509/1/012051/pdf
DOI  :  10.1088/1742-6596/509/1/012051

来源: IOP

【 摘 要 】

We study the quark-hadron phase transition by using a three flavor Nambu-Jona-Lasinio model with the Polyakov loop at zero chemical potential, extending our previous work with two flavor model. We show that the equation of state at low temperatures is dominated by pions and kaons as collective modes of quarks and anti-quarks. As temperature increases, mesonic collective modes melt into the continuum of quark and anti-quark so that hadronic phase changes continuously to the quark phase where quark excitations dominate pressure.