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arXiv · hep-ex/0209051

High-p_T pi^0 suppression in Au+Au collisions at sqrt(s_NN) = 200 GeV

David d'Enterria
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Abstract

Neutral pions with p_T = 1 - 8 GeV/c have been measured for 9 different centrality classes in Au+Au collisions at sqrt(s_NN) = 200 GeV by the PHENIX experiment at RHIC. The pi^0 multiplicity in central reactions is significantly below the binary collision scaled yields from both peripheral Au+Au and pp reactions. The observed suppression sets in for the 50-70% centrality class and increases with p_T and centrality. For the most central bin, the deficit amounts to a factor ~2.5 at p_T ~ 2 GeV/c gradually increasing to a factor ~6 at p_T ~ 8 GeV/c.

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David d'Enterria. 2002-10-17. High-p_T pi^0 suppression in Au+Au collisions at sqrt(s_NN) = 200 GeV. https://doi.org/10.1016/s0375-9474(02)01480-x

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