QCD glueball sum rules revisited

Detalhes bibliográficos
Autor(a) principal: Forkel, Hilmar [UNESP]
Data de Publicação: 2004
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S0103-97332004000200016
http://hdl.handle.net/11449/23999
Resumo: We discuss several key problems of conventional QCD glueball sum rules in the spin-0 channels and show how they are overcome by nonperturbative Wilson coefficients. The nonperturbative contributions originate from direct instantons and, in the pseudoscalar channel, additionally from topological charge screening. The treatment of the direct-instanton sector is based on realistic instanton size distributions and renormalization at the operator scale. The resulting predictions for spin-0 glueball properties as well as their implications for experimental glueball searches are discussed.
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spelling QCD glueball sum rules revisitedWe discuss several key problems of conventional QCD glueball sum rules in the spin-0 channels and show how they are overcome by nonperturbative Wilson coefficients. The nonperturbative contributions originate from direct instantons and, in the pseudoscalar channel, additionally from topological charge screening. The treatment of the direct-instanton sector is based on realistic instanton size distributions and renormalization at the operator scale. The resulting predictions for spin-0 glueball properties as well as their implications for experimental glueball searches are discussed.Universidade Estadual Paulista IFTUniversität Heidelberg Institut für Theoretische PhysikUniversidade Estadual Paulista IFTSociedade Brasileira de FísicaUniversidade Estadual Paulista (Unesp)Universität Heidelberg Institut für Theoretische PhysikForkel, Hilmar [UNESP]2014-05-20T14:08:28Z2014-05-20T14:08:28Z2004-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article229-232application/pdfhttp://dx.doi.org/10.1590/S0103-97332004000200016Brazilian Journal of Physics. Sociedade Brasileira de Física, v. 34, n. 1a, p. 229-232, 2004.0103-9733http://hdl.handle.net/11449/2399910.1590/S0103-97332004000200016S0103-97332004000200016S0103-97332004000200016.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Journal of Physics1.0820,276info:eu-repo/semantics/openAccess2023-12-11T06:17:44Zoai:repositorio.unesp.br:11449/23999Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:03:33.030416Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv QCD glueball sum rules revisited
title QCD glueball sum rules revisited
spellingShingle QCD glueball sum rules revisited
Forkel, Hilmar [UNESP]
title_short QCD glueball sum rules revisited
title_full QCD glueball sum rules revisited
title_fullStr QCD glueball sum rules revisited
title_full_unstemmed QCD glueball sum rules revisited
title_sort QCD glueball sum rules revisited
author Forkel, Hilmar [UNESP]
author_facet Forkel, Hilmar [UNESP]
author_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universität Heidelberg Institut für Theoretische Physik
dc.contributor.author.fl_str_mv Forkel, Hilmar [UNESP]
description We discuss several key problems of conventional QCD glueball sum rules in the spin-0 channels and show how they are overcome by nonperturbative Wilson coefficients. The nonperturbative contributions originate from direct instantons and, in the pseudoscalar channel, additionally from topological charge screening. The treatment of the direct-instanton sector is based on realistic instanton size distributions and renormalization at the operator scale. The resulting predictions for spin-0 glueball properties as well as their implications for experimental glueball searches are discussed.
publishDate 2004
dc.date.none.fl_str_mv 2004-03-01
2014-05-20T14:08:28Z
2014-05-20T14:08:28Z
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/10.1590/S0103-97332004000200016
Brazilian Journal of Physics. Sociedade Brasileira de Física, v. 34, n. 1a, p. 229-232, 2004.
0103-9733
http://hdl.handle.net/11449/23999
10.1590/S0103-97332004000200016
S0103-97332004000200016
S0103-97332004000200016.pdf
url http://dx.doi.org/10.1590/S0103-97332004000200016
http://hdl.handle.net/11449/23999
identifier_str_mv Brazilian Journal of Physics. Sociedade Brasileira de Física, v. 34, n. 1a, p. 229-232, 2004.
0103-9733
10.1590/S0103-97332004000200016
S0103-97332004000200016
S0103-97332004000200016.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Brazilian Journal of Physics
1.082
0,276
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 229-232
application/pdf
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 SciELO
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_ 1808129155546480640

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