The $J/ψDD^*$ vertex

Details The $J/ψDD^*$ vertex The $J/ψDD^*$ vertex

2003-10-06

arxiv.org/abs/hep-ph/0310074v1

Braz.J.Phys.34:236-239,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 4 eps figures

Scientific paper

We employ QCD sum rules to calculate the $J/\psi DD^*$ form factors and
coupling constant by studying the three-point $J/\psi D^*D$ correlation
function. We find that the momentum dependence of the form factor depends on
the off-shell meson. We get a value for the coupling which is in agreement with
estimates based on constituent quark model.

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