Single Particle Probes of d+Au Collisions in PHENIX
arXiv:0907.4796 · doi:10.1016/j.nuclphysa.2009.09.051
Abstract
Deuteron-gold collisions provide insights into the nuclear structure function and a valuable baseline for Au+Au collisions. Measurement of the nuclear modification factor, R_{dAu}, in d+Au in the PHENIX central arms for hadrons and photons allows us to disentangle cold nuclear matter effects from the hot medium effects that are important in Au+Au collisions. In addition, the d+Au system can yield important insights into the gluonic structure of the Au nucleus. RHIC experiments have previously measured suppression of forward rapidity particle production relative to p+p scaled by the number of binary N-N collisions, but a definitive explanation of these data is thus far elusive. Correlations between hadrons with a large rapidity gap are a particularly sensitive probe of gluon saturation. We will discuss probing this physics via particle production in events tagged with high momentum particles at different rapidities, along with R_{dAu} in new forward rapidity regions.
4 pages, 5 figures - To appear in the conference proceedings for Quark Matter 2009, March 30 - April 4, Knoxville, Tennessee (final version)
References in corpus (5)
- Evolution of the nuclear modification factors with rapidity and centrality in d+Au collisions at $\sqrt{s_{NN}} = 200 GeV
- Coherent QCD multiple scattering in proton-nucleus collisions
- Jet Azimuthal Correlations and Parton Saturation in the Color Glass Condensate
- Nuclear Modification Factors for Hadrons At Forward and Backward Rapidities in Deuteron-Gold Collisions at sqrt(s_NN) = 200 GeV
- Centrality dependence of charged hadron production in deuteron+gold and nucleon+gold collisions at sqrt(s_NN)=200 GeV