Nonextensive statistical effects and strangeness production in hot and dense nuclear matter

TL;DR

This paper investigates how nonextensive statistical mechanics influences the phase transition from hadronic matter to quark-gluon plasma, especially affecting strangeness production in hot, dense nuclear matter.

Contribution

It introduces a nonextensive statistical framework to study phase transitions in nuclear matter, highlighting effects on strangeness production and phase behavior.

Findings

Nonextensive effects significantly alter strangeness production.

Small deviations from Boltzmann-Gibbs statistics impact phase transition.

Nonextensive statistics influence hadron-quark-gluon transition.

Abstract

By means of an effective relativistic nuclear equation of state in the framework of the nonextensive statistical mechanics, characterized by power-law quantum distributions, we study the phase transition from hadronic matter to quark-gluon plasma at finite temperature and baryon density. The analysis is performed by requiring the Gibbs conditions on the global conservation of baryon number, electric charge fraction and zero net strangeness. We show that nonextensive statistical effects strongly influence the strangeness production during the pure hadronic phase and the hadron-quark-gluon mixed phase transition, also for small deviations from the standard Boltzmann-Gibbs statistics.