QCD equation of state at nonzero magnetic fields in the Hadron Resonance Gas model

Endrodi, G. (2013) QCD equation of state at nonzero magnetic fields in the Hadron Resonance Gas model. JOURNAL OF HIGH ENERGY PHYSICS (4): 023. ISSN 1029-8479,

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Abstract

The Hadron Resonance Gas (HRG) model is considered to study the QCD equation of state for the case of nonzero external magnetic fields. Thermodynamic observables including the pressure, energy density, entropy density, magnetization and the speed of sound are presented as functions of the temperature and the magnetic field. The magnetization is determined to be positive, indicating that the hadronic phase of QCD is paramagnetic. The behavior of the speed of sound suggests that the deconfinement transition temperature is lowered as the magnetic field grows. Moreover, a simple correspondence is derived, which relates the magnetic catalysis of the quark condensate to the positivity of the beta-function in scalar QED.

Item Type: Article
Uncontrolled Keywords: QUARK MATTER; LATTICE; THERMODYNAMICS; PARTICLES; EVENT; QCD Phenomenology; Phenomenological Models
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics
Depositing User: Dr. Gernot Deinzer
Date Deposited: 17 Apr 2020 07:04
Last Modified: 17 Apr 2020 07:04
URI: https://pred.uni-regensburg.de/id/eprint/16844

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