Campus Units

Physics and Astronomy

Document Type

Article

Publication Version

Published Version

Publication Date

6-2006

Journal or Book Title

Physical Review D

Volume

96

Issue

22

First Page

222301

DOI

10.1103/PhysRevLett.96.222301

Abstract

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 root s(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 similar to 0.1 to similar to 0.01. Within this range, we find no x dependence of the jet structure in d+Au collisions.

Comments

This article is published as Adler, S. S., S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, A. Al-Jamel, J. Alexander et al. "Azimuthal Angle Correlations for Rapidity Separated Hadron Pairs in d+ Au Collisions at s N N= 200 GeV." Physical review letters 96, no. 22 (2006): 222301. DOI:10.1103/PhysRevLett.96.222301. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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