Centrality Dependence of High-pT Hadron Suppression in Au+Au Collisions at sNN=130GeV

C. Adler et al. (STAR Collaboration)
Phys. Rev. Lett. 89, 202301 – Published 28 October 2002

Abstract

Inclusive transverse momentum distributions of charged hadrons within 0.2<pT<6.0   GeV/c have been measured over a broad range of centrality for Au+Au collisions at sNN=130GeV. Hadron yields are suppressed at high pT in central collisions relative to peripheral collisions and to a nucleon-nucleon reference scaled for collision geometry. Peripheral collisions are not suppressed relative to the nucleon-nucleon reference. The suppression varies continuously at intermediate centralities. The results indicate significant nuclear medium effects on high-pT hadron production in heavy-ion collisions at high energy.

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  • Received 18 June 2002

DOI:https://doi.org/10.1103/PhysRevLett.89.202301

©2002 American Physical Society

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Vol. 89, Iss. 20 — 11 November 2002

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