The Nuclear Modification Factor at Large Rapidities
arXiv:hep-ph/0511190 · doi:10.1016/j.nuclphysa.2006.06.139
Abstract
RHIC data on high- hadron production display strong suppression in a wide rapidity region, indicating strong induced energy loss for both transversally and longitudinally traveling partons. We investigate the interplay of energy loss and rapidity dependence in a perturbative QCD improved parton model, and estimate the opacity of the produced hot matter in collisions at energies GeV and 63 GeV at different rapidity values. Direction-dependent suppression offers the possibility to study the geometry of the hot matter.
4 pages, 2 figures, Contribution to the Poster Proceedings of the Quark Matter 2005 Conference. To be published in Nuclear Physics A