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The $J/ψDD^*$ vertex

R. Rodrigues da Silva·R. D. Matheus·F. S. Navarra·M. Nielsen
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Abstract

We employ QCD sum rules to calculate the $J/ψDD^*$ form factors and coupling constant by studying the three-point $J/ψD^*D$ 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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R. Rodrigues da Silva, R. D. Matheus, F. S. Navarra, M. Nielsen. 2003-10-06. The $J/ψDD^*$ vertex. https://arxiv.org/abs/hep-ph/0310074

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