Centrality Dependence of π0 and η Production at Large Transverse Momentum in √sNN = 200GeV d + Au Collisions

Physical Review Letters Volume 98 Issue 17 Page 172302-1-172302-6 published_at 2007-04-24
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Title ( eng )
Centrality Dependence of π0 and η Production at Large Transverse Momentum in √sNN = 200GeV d + Au Collisions
Creator
PHENIX Collaboration
Hachiya Takashi
Kohara Ryota
Nakamura Tomoaki
Tsuchimoto Yuji
Source Title
Physical Review Letters
Volume 98
Issue 17
Start Page 172302-1
End Page 172302-6
Abstract
The dependence of transverse momentum spectra of neutral pions and η mesons with pT < 16 GeV/c and pT < 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 √sNN = 200 GeV. The measured yields are compared to those in p + p collisions at the same √sNN 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 Au + Au collisions at RHIC. Only a weak pT and centrality dependence can be observed.
Language
eng
Resource Type journal article
Publisher
American Physical Society
Date of Issued 2007-04-24
Rights
Copyright (c) 2007 The American Physical Society.
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 0031-9007
[DOI] 10.1103/PhysRevLett.98.172302
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.98.172302