Interacting quark matter equation of state for compact stars

Lattice QCD studies of the thermodynamics of the hot quark-gluon plasma (QGP) demonstrate the importance of accounting for the interactions of quarks and gluons, if one wants to investigate the phase structure of strongly interacting matter. Motivated by this observation and using state-of-the-art r...

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Detalles Bibliográficos
Autores principales: Fraga, Eduardo S., Kurkela, Aleksi, Vuorinen, Aleksi
Lenguaje:eng
Publicado: 2013
Materias:
Nuclear Physics - Theory
Acceso en línea:https://dx.doi.org/10.1088/2041-8205/781/2/L25
http://cds.cern.ch/record/1630331
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author Fraga, Eduardo S.
Kurkela, Aleksi
Vuorinen, Aleksi
author_facet Fraga, Eduardo S.
Kurkela, Aleksi
Vuorinen, Aleksi
author_sort Fraga, Eduardo S.
collection CERN
description Lattice QCD studies of the thermodynamics of the hot quark-gluon plasma (QGP) demonstrate the importance of accounting for the interactions of quarks and gluons, if one wants to investigate the phase structure of strongly interacting matter. Motivated by this observation and using state-of-the-art results from perturbative QCD, we construct a simple effective equation of state for cold quark matter that consistently incorporates the effects of interactions and furthermore includes a built-in estimate of the inherent systematic uncertainties. This goes beyond the MIT bag model description in a crucial way, yet leads to an equation of state that is equally straightforward to use.
id cern-1630331
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2013
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spelling cern-16303312021-09-17T03:03:52Zdoi:10.1088/2041-8205/781/2/L25http://cds.cern.ch/record/1630331engFraga, Eduardo S.Kurkela, AleksiVuorinen, AleksiInteracting quark matter equation of state for compact starsNuclear Physics - TheoryLattice QCD studies of the thermodynamics of the hot quark-gluon plasma (QGP) demonstrate the importance of accounting for the interactions of quarks and gluons, if one wants to investigate the phase structure of strongly interacting matter. Motivated by this observation and using state-of-the-art results from perturbative QCD, we construct a simple effective equation of state for cold quark matter that consistently incorporates the effects of interactions and furthermore includes a built-in estimate of the inherent systematic uncertainties. This goes beyond the MIT bag model description in a crucial way, yet leads to an equation of state that is equally straightforward to use.Lattice quantum chromodynamics (QCD) studies of the thermodynamics of hot quark-gluon plasma demonstrate the importance of accounting for the interactions of quarks and gluons if one wants to investigate the phase structure of strongly interacting matter. Motivated by this observation and using state-of-the-art results from perturbative QCD, we construct a simple, effective equation of state (EOS) for cold quark matter that consistently incorporates the effects of interactions and furthermore includes a built-in estimate of the inherent systematic uncertainties. This goes beyond the MIT bag model description in a crucial way, yet leads to an EOS that is equally straightforward to use. We also demonstrate that, at moderate densities, our EOS can be made to smoothly connect to hadronic EOSs, with the two exhibiting very similar behavior near the matching region. The resulting hybrid stars are seen to have masses similar to those predicted by the purely nucleonic EOSs.Lattice QCD studies of the thermodynamics of the hot quark-gluon plasma (QGP) demonstrate the importance of accounting for the interactions of quarks and gluons, if one wants to investigate the phase structure of strongly interacting matter. Motivated by this observation and using state-of-the-art results from perturbative QCD, we construct a simple effective equation of state for cold quark matter that consistently incorporates the effects of interactions and furthermore includes a built-in estimate of the inherent systematic uncertarXiv:1311.5154CERN-PH-TH-2013-269HIP-2013-27-THCERN-PH-TH-2013-269oai:cds.cern.ch:16303312013-11-20
spellingShingle Nuclear Physics - Theory
Fraga, Eduardo S.
Kurkela, Aleksi
Vuorinen, Aleksi
Interacting quark matter equation of state for compact stars
title Interacting quark matter equation of state for compact stars
title_full Interacting quark matter equation of state for compact stars
title_fullStr Interacting quark matter equation of state for compact stars
title_full_unstemmed Interacting quark matter equation of state for compact stars
title_short Interacting quark matter equation of state for compact stars
title_sort interacting quark matter equation of state for compact stars
topic Nuclear Physics - Theory
url https://dx.doi.org/10.1088/2041-8205/781/2/L25
http://cds.cern.ch/record/1630331
work_keys_str_mv AT fragaeduardos interactingquarkmatterequationofstateforcompactstars
AT kurkelaaleksi interactingquarkmatterequationofstateforcompactstars
AT vuorinenaleksi interactingquarkmatterequationofstateforcompactstars

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