학술논문
The J/psiDD* vertex
Document Type
article
Source
Brazilian Journal of Physics. March 2004 34(1a)
Subject
Language
English
ISSN
0103-9733
Abstract
We employ QCD sum rules to calculate the J/psiDD* form factors and coupling constant by studying the threepoint J/psiD*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.