Phase diagram and critical endpoint for strongly-interacting quarks

Details Phase diagram and critical endpoint for strongly-interacting quarks Phase diagram and critical endpoint for strongly-interacting quarks

2010-11-12

arxiv.org/abs/1011.2876v1

Phys.Rev.Lett.106:172301,2011

Physics

Nuclear Physics

Nuclear Theory

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.106.172301

We introduce a method based on the chiral susceptibility, which enables one to draw a phase diagram in the chemical-potential/temperature plane for strongly-interacting quarks whose interactions are described by any reasonable gap equation, even if the diagrammatic content of the quark-gluon vertex is unknown. We locate a critical endpoint (CEP) at (\mu^E,T^E) ~ (1.0,0.9)T_c, where T_c is the critical temperature for chiral symmetry restoration at \mu=0; and find that a domain of phase coexistence opens at the CEP whose area increases as a confinement length-scale grows.

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