Thermal evolution of the chiral condensate in SU(2) and SU(3) Chiral Perturbation Theory.

The temperature evolution of the chiral condensates in a gas made of pions, kaons and etas is studied within the framework of SU(2) and SU(3) Chiral Perturbation Theory. We describe the temperature dependence of the quark condensates by using the meson meson scattering phase shifts in a second order...

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Detalles Bibliográficos
Autor: Peláez Sagredo, José Ramón
Tipo de recurso: artículo
Fecha de publicación:2003
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/51738
Acceso en línea:https://hdl.handle.net/20.500.14352/51738
Access Level:acceso abierto
Palabra clave:51-73
One-loop
Phase-transition
Quark condensate
Scattering
Mass
Qcd
π
Unitarization
Lagrangians
Dependence
Física-Modelos matemáticos
Física matemática
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spelling Thermal evolution of the chiral condensate in SU(2) and SU(3) Chiral Perturbation Theory.Peláez Sagredo, José Ramón51-73One-loopPhase-transitionQuark condensateScatteringMassQcdπUnitarizationLagrangiansDependenceFísica-Modelos matemáticosFísica matemáticaThe temperature evolution of the chiral condensates in a gas made of pions, kaons and etas is studied within the framework of SU(2) and SU(3) Chiral Perturbation Theory. We describe the temperature dependence of the quark condensates by using the meson meson scattering phase shifts in a second order virial expansion. We find that the SU(3) formalism yields an extrapolated melting temperature for the non-strange condensates which is lower by about 0-30 MeV than within SU(2). In addition our results show that the strange condensate melting is slower than that of the non-strange, due to the different strange and non-strange quark masses.Elsevier Science BvUniversidad Complutense de Madrid20032003-06-0120032003-06-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/51738reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/517382026-06-02T12:44:21Z
dc.title.none.fl_str_mv Thermal evolution of the chiral condensate in SU(2) and SU(3) Chiral Perturbation Theory.
title Thermal evolution of the chiral condensate in SU(2) and SU(3) Chiral Perturbation Theory.
spellingShingle Thermal evolution of the chiral condensate in SU(2) and SU(3) Chiral Perturbation Theory.
Peláez Sagredo, José Ramón
51-73
One-loop
Phase-transition
Quark condensate
Scattering
Mass
Qcd
π
Unitarization
Lagrangians
Dependence
Física-Modelos matemáticos
Física matemática
title_short Thermal evolution of the chiral condensate in SU(2) and SU(3) Chiral Perturbation Theory.
title_full Thermal evolution of the chiral condensate in SU(2) and SU(3) Chiral Perturbation Theory.
title_fullStr Thermal evolution of the chiral condensate in SU(2) and SU(3) Chiral Perturbation Theory.
title_full_unstemmed Thermal evolution of the chiral condensate in SU(2) and SU(3) Chiral Perturbation Theory.
title_sort Thermal evolution of the chiral condensate in SU(2) and SU(3) Chiral Perturbation Theory.
dc.creator.none.fl_str_mv Peláez Sagredo, José Ramón
author Peláez Sagredo, José Ramón
author_facet Peláez Sagredo, José Ramón
author_role author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 51-73
One-loop
Phase-transition
Quark condensate
Scattering
Mass
Qcd
π
Unitarization
Lagrangians
Dependence
Física-Modelos matemáticos
Física matemática
topic 51-73
One-loop
Phase-transition
Quark condensate
Scattering
Mass
Qcd
π
Unitarization
Lagrangians
Dependence
Física-Modelos matemáticos
Física matemática
description The temperature evolution of the chiral condensates in a gas made of pions, kaons and etas is studied within the framework of SU(2) and SU(3) Chiral Perturbation Theory. We describe the temperature dependence of the quark condensates by using the meson meson scattering phase shifts in a second order virial expansion. We find that the SU(3) formalism yields an extrapolated melting temperature for the non-strange condensates which is lower by about 0-30 MeV than within SU(2). In addition our results show that the strange condensate melting is slower than that of the non-strange, due to the different strange and non-strange quark masses.
publishDate 2003
dc.date.none.fl_str_mv 2003
2003-06-01
2003
2003-06-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/51738
url https://hdl.handle.net/20.500.14352/51738
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier Science Bv
publisher.none.fl_str_mv Elsevier Science Bv
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869411550765252608
score 15.300724

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