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arXiv · hep-ph/0511190

The Nuclear Modification Factor at Large Rapidities

G. G. Barnafoldi·P. Levai·G. Papp·G. Fai
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Abstract

RHIC data on high-$p_T$ 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 $AuAu$ collisions at energies $\sqrt{s}=200$ $A$GeV and 63 $A$GeV at different rapidity values. Direction-dependent suppression offers the possibility to study the geometry of the hot matter.

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G. G. Barnafoldi, P. Levai, G. Papp, G. Fai. 2005-11-15. The Nuclear Modification Factor at Large Rapidities. https://doi.org/10.1016/j.nuclphysa.2006.06.139

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