Campus Units

Physics and Astronomy

Document Type

Article

Publication Version

Published Version

Publication Date

4-2007

Journal or Book Title

Physical Review Letters

Volume

98

Issue

17

First Page

172302

DOI

10.1103/PhysRevLett.98.172302

Abstract

The dependence of transverse momentum spectra of neutral pions and eta mesons with p(T) < 16 GeV/c and p(T) < 12 GeV/c, respectively, on the centrality of the collision has been measured at midrapidity by the PHENIX experiment at the BNL Relativistic Heavy Ion Collider (RHIC) in d + Au collisions at root s(NN) = 200 GeV. The measured yields are compared to those in p + p collisions at the same root s(NN) scaled by the number of underlying nucleon-nucleon collisions in d + Au. At all centralities, the yield ratios show no suppression, in contrast to the strong suppression seen for central An + Au collisions at RHIC. Only a weak p(T) and centrality dependence can be observed.

Comments

This article is published as Adler, Stephen Scott, S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, A. Al-Jamel, J. Alexander et al. "Centrality Dependence of π 0 and η Production at Large Transverse Momentum in s N N= 200 GeV d+ Au Collisions." Physical Review Letters 98, no. 17 (2007): 172302. DOI:10.1103/PhysRevLett.98.172302. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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