Color evaporation description of inelastic photoproduction of J/psi at DESY HERA

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dc.contributor.authorEboli, OJP
dc.contributor.authorGregores, E. M.
dc.contributor.authorHalzen, F.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Wisconsin
dc.date.accessioned2014-05-20T14:05:54Z
dc.date.available2014-05-20T14:05:54Z
dc.date.issued2003-03-01
dc.description.abstractThe H1 Collaboration recently reported a new analysis of data on the inelastic photoproduction of J/psi mesons at DESY's HERA ep collider. We show that these new experimental results are well described by the color evaporation model for quarkonium production. Moreover, these new data require the introduction of resolved photon contributions in order to accommodate the results in the kinematic region where the fractional energy carried by the J/psi is small, demonstrating that colored perturbative c (c) over bar states contribute to the production of a color singlet.en
dc.description.affiliationUniv São Paulo, Inst Fis, BR-01498 São Paulo, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, BR-01405 São Paulo, Brazil
dc.description.affiliationUniv Wisconsin, Dept Phys, Madison, WI 53706 USA
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, BR-01405 São Paulo, Brazil
dc.format.extent5
dc.identifierhttp://dx.doi.org/10.1103/PhysRevD.67.054002
dc.identifier.citationPhysical Review D. College Pk: American Physical Soc, v. 67, n. 5, 5 p., 2003.
dc.identifier.doi10.1103/PhysRevD.67.054002
dc.identifier.fileWOS000182019700014.pdf
dc.identifier.issn0556-2821
dc.identifier.urihttp://hdl.handle.net/11449/23125
dc.identifier.wosWOS:000182019700014
dc.language.isoeng
dc.publisherAmerican Physical Soc
dc.relation.ispartofPhysical Review D
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleColor evaporation description of inelastic photoproduction of J/psi at DESY HERAen
dc.typeArtigo
dcterms.licensehttp://publish.aps.org/authors/transfer-of-copyright-agreement
dcterms.rightsHolderAmerican Physical Soc
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

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