Freezing of the QCD coupling constant and solutions of Schwinger-Dyson equations

Detalhes bibliográficos
Autor(a) principal: Aguilar, A. C. [UNESP]
Data de Publicação: 2002
Outros Autores: Mihara, A. [UNESP], Natale, A. A. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1103/PhysRevD.65.054011
http://hdl.handle.net/11449/224264
Resumo: We compare phenomenological values of the frozen QCD running coupling constant (as) with two classes of infrared finite solutions obtained through nonperturbative Schwinger-Dyson equations. We use these same solutions with frozen coupling constants as well as their respective nonperturbative gluon propagators to compute the QCD prediction for the asymptotic pion form factor. Agreement between theory and experiment on αs(0) and F π(Q2) is found only for one of the Schwinger-Dyson equation solutions. © 2002 The American Physical Society.
id UNSP_3a608ecfbac761ba7d9ffcfcf902adc5
oai_identifier_str oai:repositorio.unesp.br:11449/224264
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling Freezing of the QCD coupling constant and solutions of Schwinger-Dyson equationsWe compare phenomenological values of the frozen QCD running coupling constant (as) with two classes of infrared finite solutions obtained through nonperturbative Schwinger-Dyson equations. We use these same solutions with frozen coupling constants as well as their respective nonperturbative gluon propagators to compute the QCD prediction for the asymptotic pion form factor. Agreement between theory and experiment on αs(0) and F π(Q2) is found only for one of the Schwinger-Dyson equation solutions. © 2002 The American Physical Society.Institut de Fisica Teórica Universidade Estadual Paulista, Rua Pamplona 145, 01405-900, Sao Paulo, SPInstitut de Fisica Teórica Universidade Estadual Paulista, Rua Pamplona 145, 01405-900, Sao Paulo, SPUniversidade Estadual Paulista (UNESP)Aguilar, A. C. [UNESP]Mihara, A. [UNESP]Natale, A. A. [UNESP]2022-04-28T19:55:33Z2022-04-28T19:55:33Z2002-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1103/PhysRevD.65.054011Physical Review D, v. 65, n. 5, 2002.0556-2821http://hdl.handle.net/11449/22426410.1103/PhysRevD.65.0540112-s2.0-0036496992Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review Dinfo:eu-repo/semantics/openAccess2022-04-28T19:55:33Zoai:repositorio.unesp.br:11449/224264Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:27:16.006005Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Freezing of the QCD coupling constant and solutions of Schwinger-Dyson equations
title Freezing of the QCD coupling constant and solutions of Schwinger-Dyson equations
spellingShingle Freezing of the QCD coupling constant and solutions of Schwinger-Dyson equations
Aguilar, A. C. [UNESP]
title_short Freezing of the QCD coupling constant and solutions of Schwinger-Dyson equations
title_full Freezing of the QCD coupling constant and solutions of Schwinger-Dyson equations
title_fullStr Freezing of the QCD coupling constant and solutions of Schwinger-Dyson equations
title_full_unstemmed Freezing of the QCD coupling constant and solutions of Schwinger-Dyson equations
title_sort Freezing of the QCD coupling constant and solutions of Schwinger-Dyson equations
author Aguilar, A. C. [UNESP]
author_facet Aguilar, A. C. [UNESP]
Mihara, A. [UNESP]
Natale, A. A. [UNESP]
author_role author
author2 Mihara, A. [UNESP]
Natale, A. A. [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Aguilar, A. C. [UNESP]
Mihara, A. [UNESP]
Natale, A. A. [UNESP]
description We compare phenomenological values of the frozen QCD running coupling constant (as) with two classes of infrared finite solutions obtained through nonperturbative Schwinger-Dyson equations. We use these same solutions with frozen coupling constants as well as their respective nonperturbative gluon propagators to compute the QCD prediction for the asymptotic pion form factor. Agreement between theory and experiment on αs(0) and F π(Q2) is found only for one of the Schwinger-Dyson equation solutions. © 2002 The American Physical Society.
publishDate 2002
dc.date.none.fl_str_mv 2002-01-01
2022-04-28T19:55:33Z
2022-04-28T19:55:33Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1103/PhysRevD.65.054011
Physical Review D, v. 65, n. 5, 2002.
0556-2821
http://hdl.handle.net/11449/224264
10.1103/PhysRevD.65.054011
2-s2.0-0036496992
url http://dx.doi.org/10.1103/PhysRevD.65.054011
http://hdl.handle.net/11449/224264
identifier_str_mv Physical Review D, v. 65, n. 5, 2002.
0556-2821
10.1103/PhysRevD.65.054011
2-s2.0-0036496992
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Physical Review D
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129522625675264

Registros relacionados