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High Energy Physics - Phenomenology

arXiv:1312.7134 (hep-ph)
[Submitted on 26 Dec 2013 (v1), last revised 18 Nov 2014 (this version, v3)]

Title:Nonextensive thermodynamics for hadrons with finite chemical potentials

Authors:Eugenio Megias, Debora P. Menezes, Airton Deppman
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Abstract:The non extensive thermodynamics of an ideal gas composed by bosons and/or fermions is derived from its partition function for systems with finite chemical potentials. It is shown that the thermodynamical quantities derived in the present work are in agreement with those obtained in previous works when $\mu \le m$. However some inconsistencies of previous references are corrected when $\mu > m$. A discontinuity in the first derivatives of the partition function and its effects are discussed in detail. We show that at similar conditions, the non extensive statistics provide a harder equation of state than that provided by the Boltzmann-Gibbs statistics.
Comments: 12 pages, 7 figures, 2 tables; v2 improved discussion on the discontinuities appearing in Fig. 9; v3 improved discussion in sections III and IV, section on application to proto(neutron) stars removed, version to appear in Physica A
Subjects: High Energy Physics - Phenomenology (hep-ph); Nuclear Theory (nucl-th)
Report number: UAB-FT-750
Cite as: arXiv:1312.7134 [hep-ph]
  (or arXiv:1312.7134v3 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1312.7134

Submission history

From: Eugenio Megias [view email]
[v1] Thu, 26 Dec 2013 17:27:52 UTC (734 KB)
[v2] Wed, 8 Jan 2014 13:45:56 UTC (735 KB)
[v3] Tue, 18 Nov 2014 17:58:58 UTC (898 KB)
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