The nuclear modification factor at large rapidities
WoS ID: 000240816000128
Scopus ID: 33846462993
RHIC data on high-p<sub>T</sub> 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 AGeV at different rapidity values. Direction-dependent suppression offers the possibility to study the geometry of the hot matter. © 2006 Elsevier B.V. All rights reserved.