Flavor SU(4) breaking between effective couplings

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorEl-Bennich, Bruno
dc.creatorKrein, Gastão Inácio
dc.creatorChang, Lei
dc.creatorRoberts, Craig D.
dc.creatorWilson, David J.
dc.date2013-09-30T19:01:22Z
dc.date2014-05-20T14:13:18Z
dc.date2013-09-30T19:01:22Z
dc.date2014-05-20T14:13:18Z
dc.date2012-02-07
dc.date.accessioned2017-04-05T22:06:09Z
dc.date.available2017-04-05T22:06:09Z
dc.identifierPhysical Review D. College Pk: Amer Physical Soc, v. 85, n. 3, p. 6, 2012.
dc.identifier1550-7998
dc.identifierhttp://hdl.handle.net/11449/24618
dc.identifier10.1103/PhysRevD.85.031502
dc.identifierWOS:000299939300001
dc.identifierWOS000299939300001.pdf
dc.identifierhttp://dx.doi.org/10.1103/PhysRevD.85.031502
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/869592
dc.descriptionUsing a framework in which all elements are constrained by Dyson-Schwinger equation studies in QCD, and therefore incorporate a consistent, direct and simultaneous description of light-and heavy-quarks and the states they constitute, we analyze the accuracy of SU(4)-flavor symmetry relations between pi rho pi, K rho K, and D rho D couplings. Such relations are widely used in phenomenological analyses of the interactions between matter and charmed mesons. We find that while SU(3)-flavor symmetry is accurate to 20%, SU(4) relations underestimate the D rho D coupling by a factor of 5.
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageeng
dc.publisherAmer Physical Soc
dc.relationPhysical Review D
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.titleFlavor SU(4) breaking between effective couplings
dc.typeOtro


Este ítem pertenece a la siguiente institución