Thermodynamics of the glueball resonance gas

Abstract We study the thermodynamic properties – pressure, entropy and trace anomaly – of a gas of glueballs that includes the glueball states obtained by various lattice simulations. We show that this model, called glueball resonance gas (GRG) approach, describes well the thermal properties of the...

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Main Authors: Enrico Trotti, Shahriyar Jafarzade, Francesco Giacosa
Format: Article
Language:English
Published: SpringerOpen 2023-05-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-023-11557-0
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author Enrico Trotti
Shahriyar Jafarzade
Francesco Giacosa
author_facet Enrico Trotti
Shahriyar Jafarzade
Francesco Giacosa
author_sort Enrico Trotti
collection DOAJ
description Abstract We study the thermodynamic properties – pressure, entropy and trace anomaly – of a gas of glueballs that includes the glueball states obtained by various lattice simulations. We show that this model, called glueball resonance gas (GRG) approach, describes well the thermal properties of the Yang–Mills sector of QCD below the critical temperature $$T_c$$ T c , provided that $$T_c$$ T c is properly matched to the corresponding determination of the glueball masses, obtaining $$T_c \sim 320 \pm 20$$ T c ∼ 320 ± 20 MeV. The inclusion into the GRG of heavier glueballs not yet seen on the lattice, assuming that glueballs follow Regge trajectories as quark-antiquark states do, leads only to a small correction. We consider the contribution to the pressure of the interactions between scalar-scalar and tensor-tensor glueballs, which turn out to be also negligible.
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spelling doaj.art-9cfb800525474343a7155b0935fbaaf62023-07-02T11:24:29ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522023-05-0183511310.1140/epjc/s10052-023-11557-0Thermodynamics of the glueball resonance gasEnrico Trotti0Shahriyar Jafarzade1Francesco Giacosa2Institute of Physics, Jan Kochanowski UniversityInstitute of Physics, Jan Kochanowski UniversityInstitute of Physics, Jan Kochanowski UniversityAbstract We study the thermodynamic properties – pressure, entropy and trace anomaly – of a gas of glueballs that includes the glueball states obtained by various lattice simulations. We show that this model, called glueball resonance gas (GRG) approach, describes well the thermal properties of the Yang–Mills sector of QCD below the critical temperature $$T_c$$ T c , provided that $$T_c$$ T c is properly matched to the corresponding determination of the glueball masses, obtaining $$T_c \sim 320 \pm 20$$ T c ∼ 320 ± 20 MeV. The inclusion into the GRG of heavier glueballs not yet seen on the lattice, assuming that glueballs follow Regge trajectories as quark-antiquark states do, leads only to a small correction. We consider the contribution to the pressure of the interactions between scalar-scalar and tensor-tensor glueballs, which turn out to be also negligible.https://doi.org/10.1140/epjc/s10052-023-11557-0
spellingShingle Enrico Trotti
Shahriyar Jafarzade
Francesco Giacosa
Thermodynamics of the glueball resonance gas
European Physical Journal C: Particles and Fields
title Thermodynamics of the glueball resonance gas
title_full Thermodynamics of the glueball resonance gas
title_fullStr Thermodynamics of the glueball resonance gas
title_full_unstemmed Thermodynamics of the glueball resonance gas
title_short Thermodynamics of the glueball resonance gas
title_sort thermodynamics of the glueball resonance gas
url https://doi.org/10.1140/epjc/s10052-023-11557-0
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AT shahriyarjafarzade thermodynamicsoftheglueballresonancegas
AT francescogiacosa thermodynamicsoftheglueballresonancegas