Nonequilibrium chiral perturbation theory and pion decay functions

We extend chiral perturbation theory to study a meson gas out of thermal equilibrium. Assuming that the system is initially in equilibrium at T-i < T-c and working within the Schwinger-Keldysh contour technique, we define consistently the time-dependent temporal and spatial pion decay functions,...

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Detalles Bibliográficos
Autores: Gómez Nicola, Ángel, Galán González, V.
Tipo de recurso: artículo
Fecha de publicación:1999
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/59584
Acceso en línea:https://hdl.handle.net/20.500.14352/59584
Access Level:acceso abierto
Palabra clave:51-73
Qcd phase-Transition
Finite-temperature
Equilibrium
Evolution
Energy
Field
Física-Modelos matemáticos
Física matemática
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repository_id_str
spelling Nonequilibrium chiral perturbation theory and pion decay functionsGómez Nicola, ÁngelGalán González, V.51-73Qcd phase-TransitionFinite-temperatureEquilibriumEvolutionEnergyFieldFísica-Modelos matemáticosFísica matemáticaWe extend chiral perturbation theory to study a meson gas out of thermal equilibrium. Assuming that the system is initially in equilibrium at T-i < T-c and working within the Schwinger-Keldysh contour technique, we define consistently the time-dependent temporal and spatial pion decay functions, the counterparts of the pion decay constants, and calculate them to next to leading order. The link with curved space-time QFT allows to establish nonequilibrium renormalisation. The short-time behaviour and the applicability of our model to a heavy-ion collision plasma are also discussed in this work.Elsevier scienceUniversidad Complutense de Madrid19991999-03-1119991999-03-11journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/59584reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/595842026-06-02T12:44:21Z
dc.title.none.fl_str_mv Nonequilibrium chiral perturbation theory and pion decay functions
title Nonequilibrium chiral perturbation theory and pion decay functions
spellingShingle Nonequilibrium chiral perturbation theory and pion decay functions
Gómez Nicola, Ángel
51-73
Qcd phase-Transition
Finite-temperature
Equilibrium
Evolution
Energy
Field
Física-Modelos matemáticos
Física matemática
title_short Nonequilibrium chiral perturbation theory and pion decay functions
title_full Nonequilibrium chiral perturbation theory and pion decay functions
title_fullStr Nonequilibrium chiral perturbation theory and pion decay functions
title_full_unstemmed Nonequilibrium chiral perturbation theory and pion decay functions
title_sort Nonequilibrium chiral perturbation theory and pion decay functions
dc.creator.none.fl_str_mv Gómez Nicola, Ángel
Galán González, V.
author Gómez Nicola, Ángel
author_facet Gómez Nicola, Ángel
Galán González, V.
author_role author
author2 Galán González, V.
author2_role author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 51-73
Qcd phase-Transition
Finite-temperature
Equilibrium
Evolution
Energy
Field
Física-Modelos matemáticos
Física matemática
topic 51-73
Qcd phase-Transition
Finite-temperature
Equilibrium
Evolution
Energy
Field
Física-Modelos matemáticos
Física matemática
description We extend chiral perturbation theory to study a meson gas out of thermal equilibrium. Assuming that the system is initially in equilibrium at T-i < T-c and working within the Schwinger-Keldysh contour technique, we define consistently the time-dependent temporal and spatial pion decay functions, the counterparts of the pion decay constants, and calculate them to next to leading order. The link with curved space-time QFT allows to establish nonequilibrium renormalisation. The short-time behaviour and the applicability of our model to a heavy-ion collision plasma are also discussed in this work.
publishDate 1999
dc.date.none.fl_str_mv 1999
1999-03-11
1999
1999-03-11
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/20.500.14352/59584
url https://hdl.handle.net/20.500.14352/59584
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
publisher.none.fl_str_mv Elsevier science
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_ 1869406666582130688
score 15,300719

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