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dc.contributor.authorHolanda, L. B.-
dc.contributor.authorde Carvalho, R. S. Marques-
dc.contributor.authorMihara, A.-
dc.identifier.citationPhysics Letters B. Amsterdam: Elsevier B.V., v. 644, n. 4, p. 232-236, 2007.-
dc.description.abstractThe study of charmonium dissociation in heavy ion collisions is generally performed in the framework of effective Lagrangians with meson exchange. Some studies are also developed with the intention of calculate form factors and coupling constants related with charmed and light mesons. These quantifies are important in the evaluation of charmonium cross sections. In this Letter we present a calculation of the omega DD vertex that is a possible interaction vertex in some meson-exchange models spread in the literature. We used the standard method of QCD sum rules in order to obtain the vertex form factor as a function of the transferred momentum. Our results are compatible with the value of this vertex form factor (at zero momentum transfer) obtained in the vector-meson dominance model. (c) 2006 Elsevier B.V. All rights reserved.en
dc.publisherElsevier B.V.-
dc.sourceWeb of Science-
dc.subjectQCD sum rulespt
dc.subjectcharmed mesonspt
dc.subjectlight mesonspt
dc.titleThe omega DD vertex in a sum rule approachen
dc.contributor.institutionUniversidade de São Paulo (USP)-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUSP, Inst Fis S Carlos, BR-13560970 Sao Carlos, SP, Brazil-
dc.description.affiliationUNESP, BR-18409010 Itapeva, SP, Brazil-
dc.description.affiliationUNESP, Inst Fis Teor, BR-01405900 São Paulo, Brazil-
dc.description.affiliationUnespUNESP, BR-18409010 Itapeva, SP, Brazil-
dc.description.affiliationUnespUNESP, Inst Fis Teor, BR-01405900 São Paulo, Brazil-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofPhysics Letters B-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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