Cold Nuclear Matter Effects on J/{psi} Yields as a Function of Rapidity and Nuclear Geometry in d+A Collisions at {radical}(s{sub NN})=200 GeV

Journal Article · Fri Sep 30 00:00:00 EDT 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.107.142301· OSTI ID:21611796

Adare, A; Bickley, A A; Ellinghaus, F; Kinney, E; Kiriluk, K; Linden Levy, L A; Nagle, J L; Rosen, C A; Seele, J; Wysocki, M ^[1]; Afanasiev, S; Isupov, A; Litvinenko, A; Malakhov, A; Peresedov, V; Rukoyatkin, P; Zolin, L ^[2]; Aidala, C; Datta, A ^[3]; Ajitanand, N N ^[4]

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1. University of Colorado, Boulder, Colorado 80309 (United States)
2. Joint Institute for Nuclear Research, 141980 Dubna, Moscow Region (Russian Federation)
3. Department of Physics, University of Massachusetts, Amherst, Massachusetts 01003-9337 (United States)
4. Chemistry Department, Stony Brook University, SUNY, Stony Brook, New York 11794-3400 (United States)

We present measurements of J/{psi} yields in d+Au collisions at {radical}(s{sub NN})=200 GeV recorded by the PHENIX experiment and compare them with yields in p+p collisions at the same energy per nucleon-nucleon collision. The measurements cover a large kinematic range in J/{psi} rapidity (-2.2<y<2.4) with high statistical precision and are compared with two theoretical models: one with nuclear shadowing combined with final state breakup and one with coherent gluon saturation effects. In order to remove model dependent systematic uncertainties we also compare the data to a simple geometric model. The forward rapidity data are inconsistent with nuclear modifications that are linear or exponential in the density weighted longitudinal thickness, such as those from the final state breakup of the bound state.

• OSTI ID: 21611796
• Journal Information: Physical Review Letters, Vol. 107, Issue 14; Other Information: DOI: 10.1103/PhysRevLett.107.142301; (c) 2011 American Institute of Physics; 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
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOUND STATE
COMPARATIVE EVALUATIONS
GEOMETRY
GEV RANGE 100-1000
GLUONS
GOLD 197 TARGET
J PSI-3097 MESONS
NUCLEAR MATTER
NUCLEON-NUCLEON INTERACTIONS
PARTICLE RAPIDITY
PROTON-PROTON INTERACTIONS
BARYON-BARYON INTERACTIONS
BOSONS
CHARMONIUM
ELEMENTARY PARTICLES
ENERGY RANGE
EVALUATION
GEV RANGE
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MATHEMATICS
MATTER
MESONS
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PROTON-NUCLEON INTERACTIONS
QUARKONIUM
TARGETS
VECTOR MESONS