The Nuclear Modification Factor at Large Rapidities

G. G. Barnafoldi; P. Levai; G. Papp; G. Fai

doi:10.1016/j.nuclphysa.2006.06.139

The Nuclear Modification Factor at Large Rapidities

High Energy Physics - Phenomenology 2009-11-11 v1

Authors: 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.

Keywords

heavy-ion collisions heavy quark energy loss chemical freeze-out

Cite

@article{arxiv.hep-ph/0511190,
  title  = {The Nuclear Modification Factor at Large Rapidities},
  author = {G. G. Barnafoldi and P. Levai and G. Papp and G. Fai},
  journal= {arXiv preprint arXiv:hep-ph/0511190},
  year   = {2009}
}

Comments

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

The Nuclear Modification Factor at Large Rapidities

Abstract

Keywords

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