Transverse momentum dependence of J/psi shadowing effects
High Energy Physics - Phenomenology
2009-07-22 v2
Abstract
We present a new approach to estimate the effect of the gluon shadowing in nucleus+nucleus collisions and its consequences on the J/psi production yield. Using kinematical information available from the measured J/psi production in proton+proton collisions at \sqrt s = 200 GeV, we build a Glauber Monte Carlo code which takes into account shadowing in two alternative ways: multiple scattering corrections or Q2 evolution of parton densities. We exploit the dependence of these different parameterizations to the J/psi transverse momentum and we give the first predictions on the resulting pT dependence of the nuclear modification factor in deuteron+gold collisions at the same energy.
Cite
@article{arxiv.0801.4949,
title = {Transverse momentum dependence of J/psi shadowing effects},
author = {E. G. Ferreiro and F. Fleuret and A. Rakotozafindrabe},
journal= {arXiv preprint arXiv:0801.4949},
year = {2009}
}
Comments
4 pages, 4 figures. Final version for journal submission