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

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.

18 pages, 10 figures. arXiv admin note: text overlap with arXiv:1005.4643, arXiv:1202.3091, arXiv:1004.0822

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• Nonextensive Nambu Jona-Lasinio model of QCD matter revisited
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• Nonextensive Nuclear Liquid-Gas Phase Transition
• Thermodynamics and relativistic kinetic theory for q-generalized Bose-Einstein and Fermi-Dirac systems
• Hadronic freeze-out in an effective relativistic mean field model
• Generalized Nonlinear Proca Equation and its Free-Particle Solutions
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• Strangeness thermodynamic instabilities in hot and dense nuclear matter
• Non-extensive Effects on the QCD Equation of State and Fluctuations of Conserved Charges within Polyakov Quark Meson Model