Azimuthal Angle Correlations for Rapidity Separated Hadron Pairs in d+Au Collisions at {radical}(s{sub NN})=200 GeV

Journal Article · Fri Jun 09 04:00:00 EDT 2006 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.96.222301· OSTI ID:20777271

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)

Deuteron-gold (d+Au) collisions at the Relativistic Heavy Ion Collider provide ideal platforms for testing QCD theories in dense nuclear matter at high energy. In particular, models suggesting strong saturation effects for partons carrying small nucleon momentum fraction (x) predict modifications to jet production at forward rapidity (deuteron-going direction) in d+Au collisions. We report on two-particle azimuthal angle correlations between charged hadrons at forward/backward (deuteron/gold going direction) rapidity and charged hadrons at midrapidity in d+Au and p+p collisions at {radical}(s{sub NN})=200 GeV. Jet structures observed in the correlations are quantified in terms of the conditional yield and angular width of away-side partners. The kinematic region studied here samples partons in the gold nucleus with x{approx}0.1 to {approx}0.01. Within this range, we find no x dependence of the jet structure in d+Au collisions.

• OSTI ID: 20777271
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 22 Vol. 96; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ATOM COLLISIONS
BROOKHAVEN RHIC
CORRELATIONS
DEUTERON REACTIONS
DEUTERONS
GEV RANGE 100-1000
GOLD 197 TARGET
NUCLEAR MATTER
NUCLEONS
PARTICLE RAPIDITY
QUANTUM CHROMODYNAMICS