J/{psi} Production and Nuclear Effects for d+Au and p+p Collisions at {radical}(s{sub NN})=200 GeV

Journal Article · Fri Jan 13 04:00:00 EST 2006 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.96.012304· OSTI ID:20775006

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]

---

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

J/{psi} production in d+Au and p+p collisions at {radical}(s{sub NN})=200 GeV has been measured by the PHENIX experiment at rapidities -2.2<y<+2.4. The cross sections and nuclear dependence of J/{psi} production versus rapidity, transverse momentum, and centrality are obtained and compared to lower energy p+A results and to theoretical models. The observed nuclear dependence in d+Au collisions is found to be modest, suggesting that the absorption in the final state is weak and the shadowing of the gluon distributions is small and consistent with Dokshitzer-Gribov-Lipatov-Altarelli-Parisi-based parametrizations that fit deep-inelastic scattering and Drell-Yan data at lower energies.

• OSTI ID: 20775006
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 1 Vol. 96; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CROSS SECTIONS
DEEP INELASTIC HEAVY ION REACTIONS
DEEP INELASTIC SCATTERING
DEUTERONS
DRELL MODEL
GEV RANGE 100-1000
GLUONS
INCLUSIVE INTERACTIONS
J PSI-3097 MESONS
PARTICLE PRODUCTION
PARTICLE RAPIDITY
PROTON-PROTON INTERACTIONS
TRANSVERSE MOMENTUM