The Nuclear Modification Factor at Large Rapidities

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.

4 pages, 2 figures, Contribution to the Poster Proceedings of the Quark Matter 2005 Conference. To be published in Nuclear Physics A

References in corpus (4)

• Evolution of the nuclear modification factors with rapidity and centrality in d+Au collisions at $\sqrt{s_{NN}} = 200 GeV
• Indications of suppressed high p_T hadron production in nucleus-nucleus collisions at CERN-SPS
• Jet Tomography Studies in AuAu Collision at RHIC Energies
• Cronin Effect at Different Rapidities at RHIC

Cited by in corpus (3)

• Saturation physics and angular correlations at RHIC and LHC
• Jet Tomography in the Forward Direction at RHIC
• Is Strangeness Still Strange at the LHC?