A QCD sum rule approach to the charmonium - pion cross section
AUTOR(ES)
Nielsen, M., Navarra, F.S., Krein, G., Marques de Carvalho, R.S.
FONTE
Brazilian Journal of Physics
DATA DE PUBLICAÇÃO
2003-06
RESUMO
We study the Borel sum rule for the tensor amplitude of the processes J/y p ® 
D*, D, *D* and D*. We also evaluate the cross sections as a function of 
. We find that our results are smaller than the J/y p ® charmed mesons cross sections obtained with models based on meson exchange, but are close to those obtained with quark exchange models.
