Comments on the internal motion of massive charm quark in the process of double charmonium production in e+e- annihilations
arXiv:hep-ph/0703143
Abstract
The cross section value of doubly charmonium production in e+e- annihilations have been estimated at interaction energy 10.6 GeV. The quarkonium wave function shape, as well as the nonzero value of charm quark have been taken into account.
arXiv comment6 pages, 3 figures, RevTeX4, improved English