Kinematic Effects in Quarkonia Production
High Energy Physics - Phenomenology
2009-10-31 v1
Abstract
We investigate energy (momentum) distributions in J/Psi photoproduction and J/Psi production in B meson decay. In particular the upper endpoint region of the spectrum is examined where the effect of soft gluon emission from the ccbar pair becomes important. Constructing a model which is consistent with the so-called shape function formalism we consider these fragmentation effects and show that the relevance of possible colour octet contributions in the photoproduction channel is still inconclusive.
Keywords
Cite
@article{arxiv.hep-ph/0008180,
title = {Kinematic Effects in Quarkonia Production},
author = {Stefan Wolf},
journal= {arXiv preprint arXiv:hep-ph/0008180},
year = {2009}
}
Comments
LaTeX, 7 pages, 3 figures, The complete paper is also available via the www at http://www-ttp.physik.uni-karlsruhe.de/Preprints/