/ nucl-th arXiv:1712.04383

Phenomenological Equation of State of Strongly Interacting Matter with First-Order Phase Transitions and Critical Points

Typel, Stefan (Darmstadt, GSI) ; Blaschke, David (Moscow Phys. Eng. Inst.)

Pages: 9

Abstract: An extension of the relativistic density functional approach to the equation of state for strongly interacting matter is suggested which generalizes a recently developed modified excluded-volume mechanism to the case of temperature and density dependent available-volume fractions. A parametrisation of this dependence is presented for which at low temperatures and suprasaturation densities a first-order phase transition is obtained. It changes for increasing temperatures to a crossover transition via a critical endpoint. This provides a benchmark case for studies of the role of such a point in hydrodynamic simulations of ultrarelativistic heavy-ion collisions. The approach is thermodynamically consistent and extendable to finite isospin asymmetries that are relevant for simulations of neutron stars, their mergers and core-collapse supernova explosions.

Keyword(s): Equation of state ; QCD matter ; phase transition ; critical point ; modified excluded-volume mechanism

Web-Page: http://inspirehep.net/record/1642761/files/hq_T_nb_cut_log.png; http://inspirehep.net/record/1642761/files/hq_p_nb_log.png; http://inspirehep.net/record/1642761/files/hq_T_mub_log.png; http://inspirehep.net/record/1642761/files/arXiv:1712.04383.pdf

Note: 9 pages, 2 figures, contribution to Special Issue of "Universe", proceedings of the conference "Compact Stars in the QCD Phase Diagram VI", 26-29 September 2017, Dubna

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 Record created 2018-01-09, last modified 2018-01-09

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