QCD glueball sum rules revisited

Detalhes bibliográficos
Autor(a) principal: Forkel, H.
Data de Publicação: 2004
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/195819
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.Univ Estadual Paulista, IFT, BR-01405900 Sao Paulo, SP, BrazilHeidelberg Univ, Inst Theoret Phys, D-69120 Heidelberg, GermanyUniv Estadual Paulista, IFT, BR-01405900 Sao Paulo, SP, BrazilSpringerUniversidade Estadual Paulista (Unesp)Heidelberg UnivForkel, H.2020-12-10T18:04:29Z2020-12-10T18:04:29Z2004-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article229-232Brazilian Journal Of Physics. New York: Springer, v. 34, n. 1A, p. 229-232, 2004.0103-9733http://hdl.handle.net/11449/195819WOS:000220703400016Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Journal Of Physicsinfo:eu-repo/semantics/openAccess2021-10-23T11:59:39Zoai:repositorio.unesp.br:11449/195819Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:58:16.753879Repositório 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, H.
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, H.
author_facet Forkel, H.
author_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Heidelberg Univ
dc.contributor.author.fl_str_mv Forkel, H.
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
2020-12-10T18:04:29Z
2020-12-10T18:04:29Z
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 Brazilian Journal Of Physics. New York: Springer, v. 34, n. 1A, p. 229-232, 2004.
0103-9733
http://hdl.handle.net/11449/195819
WOS:000220703400016
identifier_str_mv Brazilian Journal Of Physics. New York: Springer, v. 34, n. 1A, p. 229-232, 2004.
0103-9733
WOS:000220703400016
url http://hdl.handle.net/11449/195819
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Brazilian Journal Of Physics
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 229-232
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv Web of Science
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_ 1808129568562741248

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