Phase diagram of the three-flavor color superconducting PNJL model

15th International Conference on Strangeness in Quark Matter

Ayriyan, Alexander^1 ; Blaschke, David^2,3,4 ; Lastowiecki, Rafal^2

Laboratory for Information Technologies, JINR, Dubna, Russia^1

Institute of Theoretical Physics, University of Wroclaw, Poland^2

Bogoliubov Laboratory for Theoretical Physics, JINR, Dubna, Russia^3

National Research Nuclear University (MEPhI), Moscow, Russia^4

关键词: Chiral symmetry restoration;    Energy ranges;    Heavy ion collision;    Nambu-Jona-Lasinio model;    Parametrizations;    Quadruple points;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/668/1/012101/pdf
DOI  :  10.1088/1742-6596/668/1/012101

来源: IOP

【 摘 要 】

The phase diagram of a three-flavor Polyakov-loop Nambu-Jona-Lasinio model is analyzed for symmetric matter with a parametrization consistent with the 2 Momass constraint from the pulsars PSR J1614-2230 and PSR J0348+0432. A coexistence of partial chiral symmetry restoration, diquark condensation (2SC phase) and the hadronic (confined) phase is conjectured that entails the existence of a quadruple point and is accessible by trajectories of constant entropy per baryon for heavy-ion collisions in the NICA/FAIR energy range.