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dc.contributor.authorGoncalves, Victor Paulo Barrospt_BR
dc.contributor.authorMachado, Magno Valério Trindadept_BR
dc.date.accessioned2014-08-09T02:11:26Zpt_BR
dc.date.issued2003pt_BR
dc.identifier.issn0031-9007pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/99390pt_BR
dc.description.abstractWe show that the cross section for inclusive charm production exhibits geometric scaling in a large range of photon virtualities. In the DESY ep collider HERA kinematic domain the saturation momentum Q2 sat x stays below the hard scale μ2c 4m2c , implying charm production probing mostly the color transparency regime and unitarization effects being almost negligible.We derive our results considering two saturation models which are able to describe the HERA data for the proton structure function at small values of the Bjorken variable x. A striking feature is the scaling on t=Q²=Q² sat(x) above te saturation limit, corroborating recent theoretical studies.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofPhysical review letters. Melville. Vol. 91, no. 20 (Nov. 2003), 202002 4p.pt_BR
dc.rightsOpen Accessen
dc.subjectModelo de corpt_BR
dc.subjectTeoria de perturbacaopt_BR
dc.subjectInteracoes proton-protonpt_BR
dc.subjectFuncoes de estruturapt_BR
dc.titleGeometric scaling in inclusive charm productionpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000390018pt_BR
dc.type.originEstrangeiropt_BR


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