J/Psi production in direct and resolved gamma gamma collisions
High Energy Physics - Phenomenology
2009-11-07 v1
Abstract
The production of J/Psi mesons in gamma gamma collisions allows for a test of factorization in color-octet processes as predicted by NRQCD and observed at the Tevatron. We calculate the cross sections for J/Psi production with direct and resolved photons, including also the feed-down from chi_{cJ} and Psi' decays. Our NRQCD predictions are nicely confirmed by recent data from the DELPHI collaboration at CERN LEP2.
Cite
@article{arxiv.hep-ph/0210144,
title = {J/Psi production in direct and resolved gamma gamma collisions},
author = {Michael Klasen},
journal= {arXiv preprint arXiv:hep-ph/0210144},
year = {2009}
}
Comments
Talk presented at the RADCOR/LL 2002 conference. 5 pages, 3 postscript figures