Charmonium‐Pion Cross Section from QCD Sum Rules
/ Authors
/ Abstract
The J/ψ π → D D*, D D*, D* D* and D D cross sections as a function of S are evaluated in a QCD sum rule calculation. We find that our results are smaller than the J/ψ π → charmed mesons cross sections obtained with models based on meson exchange, but are close to those obtained with quark exchange models.