$J/ψ$ couplings to open charm mesons from QCD sum rules

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dc.creatorMatheus, R. D.
dc.creatorNavarra, F. S.
dc.creatorNielsen, M.
dc.creatorda Silva, R. Rodrigues
dc.date2003-10-23
dc.date2004-08-03
dc.date.accessioned2026-07-07T03:50:58Z
dc.date.available2026-07-07T03:50:58Z
dc.descriptionWe employ QCD sum rules to calculate the $J/ψ$ form factors and coupling constants with charmed mesons, by studying three-point correlation functions. In particular we consider the $J/ψD^*D$ and $J/ψDD$ vertices. We determine the momentum dependence of the form factors for kinematical conditions where J/ψ, D or D^* are off-shell. Extrapolating to the pole of each one of the so obtained form factors, we determine the coupling constants. For both couplings our results (within the errors) are compatible with estimates based on constituent quark model.
dc.descriptiongluon condensate included. Version to be published at IJMPE
dc.identifierhttps://arxiv.org/abs/hep-ph/0310280
dc.identifierhttp://arxiv.org/abs/hep-ph/0310280
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/42970
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.title$J/ψ$ couplings to open charm mesons from QCD sum rules
dc.typetext

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