J/\psi Production in Direct and Resolved Photon Collisions
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
The production of J/Psi mesons in photon photon 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.
Keywords
Cite
@article{arxiv.hep-ph/0304271,
title = {J/\psi Production in Direct and Resolved Photon Collisions},
author = {Michael Klasen},
journal= {arXiv preprint arXiv:hep-ph/0304271},
year = {2007}
}
Comments
Talk presented at the QCD Moriond 2003 conference. 4 pages, 3 postscript figures