Nonextensive effects on the relativistic nuclear equation of state

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dc.creatorPereira, F. I. M.
dc.creatorSIlva, R.
dc.creatorAlcaniz, J. S.
dc.date2007-05-02
dc.date.accessioned2026-07-07T10:35:45Z
dc.date.available2026-07-07T10:35:45Z
dc.descriptionThe Walecka many-body field theory is investigated in the context of quantum nonextensive statistical mechanics, characterized by a dimensionless parameter $q$. We consider nuclear matter described statistically by a power-law distribution which generalizes the standard Fermi-Dirac distribution ($q = 1$). We show that the scalar and vector meson fields become more intense due to the nonextensive effects ($q \neq 1$). From a numerical treatment, we also show that as the nonextensive parameter $q$ increases, the nucleon effective mass diminishes and the equation of state becomes stiffer. Finally, the usual Maxwell construction seems not to be necessary for isotherms with temperatures in the range 14 Mev$<k_BT<$20 MeV.
dc.description6 pages, 8 figures, LaTeX
dc.identifierhttps://arxiv.org/abs/0705.0300
dc.identifierhttp://arxiv.org/abs/0705.0300
dc.identifierPhys.Rev.C76:015201,2007
dc.identifierdoi:10.1103/PhysRevC.76.015201
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/179830
dc.subjectNuclear Theory
dc.subjectAstrophysics
dc.subjectStatistical Mechanics
dc.titleNonextensive effects on the relativistic nuclear equation of state
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