Open Charm Enhancement in Pb+Pb Collisions at SPS
High Energy Physics - Phenomenology
2009-10-31 v1
Abstract
The statistical coalescence model for the production of open and hidden charm is considered within the canonical ensemble formulation. The data for the J/\psi multiplicity in Pb+Pb collisions at 158 A GeV are used for the model prediction of the open charm yield. We find a strong enhancement of the open charm production, by a factor of about 2--4, over the standard hard-collision model extrapolation from nucleon-nucleon to nucleus-nucleus collisions. A possible mechanism of the open charm enhancement in A+A collisions at the SPS energies is proposed.
Keywords
Cite
@article{arxiv.hep-ph/0012015,
title = {Open Charm Enhancement in Pb+Pb Collisions at SPS},
author = {M. I. Gorenstein and A. P. Kostyuk and H. Stoecker and W. Greiner},
journal= {arXiv preprint arXiv:hep-ph/0012015},
year = {2009}
}
Comments
4 pages, Latex