Heavy-quark symmetries in the light of nonperturbative QCD approaches

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dc.contributor.authorEl-Bennich, Bruno [UNESP]
dc.contributor.authorRoberts, Craig D.
dc.contributor.authorIvanov, Mikhail A.
dc.contributor.institutionUniversidade Cruzeiro do Sul
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionArgonne National Laboratory
dc.contributor.institutionIllinois Institute of Technology
dc.contributor.institutionJoint Institute for Nuclear Research
dc.date.accessioned2014-05-27T11:26:12Z
dc.date.available2014-05-27T11:26:12Z
dc.date.issued2011-12-01
dc.description.abstractWe critically review the validity of heavy-quark spin and flavor symmetries in heavy-light decay constants, form factors and effective couplings obtained within a nonperturbative framework, the ingredients of which are all motivated by Dyson-Schwinger equations studies of QCD. Along the way, we make new predictions for two effective nonphysical couplings: gDsDK = 24.1-1.6 +2.5 and gBsBK = 33.3 -3.7 +4.0. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.en
dc.description.affiliationLaboratorio de Física Teórica e Computação Científica Universidade Cruzeiro do Sul, 01506-000, São Paulo
dc.description.affiliationInstituto de Física Teórica Universidade Estadual Paulista, 01140-070, São Paulo
dc.description.affiliationPhysics Division Argonne National Laboratory, Argonne, IL 60439
dc.description.affiliationDepartment of Physics Illinois Institute of Technology, Chicago, IL 60616-3793
dc.description.affiliationBogoliubov Laboratory of Theoretical Physics Joint Institute for Nuclear Research, 141980 Dubna
dc.description.affiliationUnespInstituto de Física Teórica Universidade Estadual Paulista, 01140-070, São Paulo
dc.identifierhttp://arxiv.org/abs/1202.0454
dc.identifier.citationProceedings of Science.
dc.identifier.file2-s2.0-84882950018.pdf
dc.identifier.issn1824-8039
dc.identifier.scopus2-s2.0-84882950018
dc.identifier.urihttp://hdl.handle.net/11449/72821
dc.language.isoeng
dc.relation.ispartofProceedings of Science
dc.relation.ispartofsjr0,115
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectDecay constants
dc.subjectEffective coupling
dc.subjectFlavor symmetry
dc.subjectForm factors
dc.subjectHeavy-quark
dc.subjectNonperturbative
dc.subjectCouplings
dc.subjectGreen's function
dc.subjectHigh energy physics
dc.titleHeavy-quark symmetries in the light of nonperturbative QCD approachesen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://pos.sissa.it/POSauthors.html
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

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