J/\psi dissociation cross sections in a relativistic quark model
High Energy Physics - Phenomenology
2011-07-19 v2
Abstract
We calculate the amplitudes and the cross sections of the charm dissociation processes J/\psi \pi => D \bar D, D* \bar D, D \bar D*, D* \bar D* within a relativistic constituent quark model. We consistently account for the contributions coming from both the box and triangle diagrams that contribute to the dissociation processes. The cross section is dominated by the D* \bar D and D* \bar D* channels. When summing up the four channels we find a maximum total cross section of about 2.3 mb at sqrt(s) \approx 4.1 GeV. We compare our results to the results of other model calculations.
Cite
@article{arxiv.hep-ph/0311300,
title = {J/\psi dissociation cross sections in a relativistic quark model},
author = {Mikhail A. Ivanov and Juergen G. Korner and Pietro Santorelli},
journal= {arXiv preprint arXiv:hep-ph/0311300},
year = {2011}
}
Comments
22 pages, 9 figures, typos corrected, this version will appear on Phys. Rev. D