Analyzing dynamical gluon mass generation

Detalhes bibliográficos
Autor(a) principal: Aguilar,Arlene C.
Data de Publicação: 2007
Outros Autores: Papavassiliou,Joannis
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Physics
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332007000200013
Resumo: We study the necessary conditions for obtaining infrared finite solutions from the Schwinger-Dyson equation governing the dynamics of the gluon propagator. The equation in question is set up in the Feynman gauge of the background field method, thus capturing a number of desirable features. Most notably, and in contradistinction to the standard formulation, the gluon self-energy is transverse order-by-order in the dressed loop expansion, and separately for gluonic and ghost contributions. Various subtle field-theoretic issues, such as renormalization group invariance and regularization of quadratic divergences, are briefly addressed. The infrared and ultraviolet properties of the obtained solutions are examined in detail, and the allowed range for the effective gluon mass is presented.
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spelling Analyzing dynamical gluon mass generationSchwinger-Dyson equationsPinch techniqueBackground field methodGluon propagatorRunning couplingWe study the necessary conditions for obtaining infrared finite solutions from the Schwinger-Dyson equation governing the dynamics of the gluon propagator. The equation in question is set up in the Feynman gauge of the background field method, thus capturing a number of desirable features. Most notably, and in contradistinction to the standard formulation, the gluon self-energy is transverse order-by-order in the dressed loop expansion, and separately for gluonic and ghost contributions. Various subtle field-theoretic issues, such as renormalization group invariance and regularization of quadratic divergences, are briefly addressed. The infrared and ultraviolet properties of the obtained solutions are examined in detail, and the allowed range for the effective gluon mass is presented.Sociedade Brasileira de Física2007-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332007000200013Brazilian Journal of Physics v.37 n.1b 2007reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97332007000200013info:eu-repo/semantics/openAccessAguilar,Arlene C.Papavassiliou,Joanniseng2007-05-11T00:00:00Zoai:scielo:S0103-97332007000200013Revistahttp://www.sbfisica.org.br/v1/home/index.php/pt/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br1678-44480103-9733opendoar:2007-05-11T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv Analyzing dynamical gluon mass generation
title Analyzing dynamical gluon mass generation
spellingShingle Analyzing dynamical gluon mass generation
Aguilar,Arlene C.
Schwinger-Dyson equations
Pinch technique
Background field method
Gluon propagator
Running coupling
title_short Analyzing dynamical gluon mass generation
title_full Analyzing dynamical gluon mass generation
title_fullStr Analyzing dynamical gluon mass generation
title_full_unstemmed Analyzing dynamical gluon mass generation
title_sort Analyzing dynamical gluon mass generation
author Aguilar,Arlene C.
author_facet Aguilar,Arlene C.
Papavassiliou,Joannis
author_role author
author2 Papavassiliou,Joannis
author2_role author
dc.contributor.author.fl_str_mv Aguilar,Arlene C.
Papavassiliou,Joannis
dc.subject.por.fl_str_mv Schwinger-Dyson equations
Pinch technique
Background field method
Gluon propagator
Running coupling
topic Schwinger-Dyson equations
Pinch technique
Background field method
Gluon propagator
Running coupling
description We study the necessary conditions for obtaining infrared finite solutions from the Schwinger-Dyson equation governing the dynamics of the gluon propagator. The equation in question is set up in the Feynman gauge of the background field method, thus capturing a number of desirable features. Most notably, and in contradistinction to the standard formulation, the gluon self-energy is transverse order-by-order in the dressed loop expansion, and separately for gluonic and ghost contributions. Various subtle field-theoretic issues, such as renormalization group invariance and regularization of quadratic divergences, are briefly addressed. The infrared and ultraviolet properties of the obtained solutions are examined in detail, and the allowed range for the effective gluon mass is presented.
publishDate 2007
dc.date.none.fl_str_mv 2007-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332007000200013
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332007000200013
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-97332007000200013
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Física
publisher.none.fl_str_mv Sociedade Brasileira de Física
dc.source.none.fl_str_mv Brazilian Journal of Physics v.37 n.1b 2007
reponame:Brazilian Journal of Physics
instname:Sociedade Brasileira de Física (SBF)
instacron:SBF
instname_str Sociedade Brasileira de Física (SBF)
instacron_str SBF
institution SBF
reponame_str Brazilian Journal of Physics
collection Brazilian Journal of Physics
repository.name.fl_str_mv Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)
repository.mail.fl_str_mv sbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br
_version_ 1754734863745810432

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