Centrality Dependence of {pi}{sup 0} and {eta} Production at Large Transverse Momentum in {radical}(s{sub NN})=200 GeV d+Au Collisions

Journal Article · Fri Apr 27 00:00:00 EDT 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.98.172302· OSTI ID:20951271

Adler, S S; Aronson, S H; Chujo, T; David, G; Desmond, E J; Franz, A; Haggerty, J S; Harvey, M; Johnson, B M; Kistenev, E; Kroon, P J; Makdisi, Y I; Mioduszewski, S; Mitchell, J T; Morrison, D P; O'Brien, E; Pinkenburg, C; Pisani, R P; Purschke, M L; Shea, T K ^[1]

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1. Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)

The dependence of transverse momentum spectra of neutral pions and {eta} mesons with p{sub T}<16 GeV/c and p{sub 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 {radical}(s{sub NN})=200 GeV. The measured yields are compared to those in p+p collisions at the same {radical}(s{sub 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 Au+Au collisions at RHIC. Only a weak p{sub T} and centrality dependence can be observed.

• OSTI ID: 20951271
• Journal Information: Physical Review Letters, Vol. 98, Issue 17; Other Information: DOI: 10.1103/PhysRevLett.98.172302; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BNL
COLLIDING BEAMS
DEUTERON BEAMS
DEUTERON REACTIONS
ETA MESONS
GOLD 197 BEAMS
GOLD 197 REACTIONS
GOLD 197 TARGET
NUCLEON-NUCLEON INTERACTIONS
PIONS NEUTRAL