Cronin effect and geometrical shadowing in d+Au collisions: pQCD vs. CGC

Abstract

Multiple initial state parton interactions in p(d)+A collisions are calculated in a Glauber-Eikonal formalism, which incorporates the competing pattern of low-pT suppression due geometrical shadowing, and a moderate-pT Cronin enhancement of hadron spectra. Dynamical shadowing effects, which are not included in the computation, may be extracted by comparing experimental data to the baseline provided by the Glauber-Eikonal model. Data for neutral pion production at midrapidity show absence of dynamical shadowing in the RHIC energy range, sqrt(s)~20-200 GeV. Recent preliminary data at forward rapidity are addressed, and their interpretation discussed.

4 pages, 2 figures. Contributed talk at Quark Matter 2004 (QM2004), Oakland, January 11-17, 2004

References in corpus (6)

• Cronin effect vs. geometrical shadowing in d+Au collisions at RHIC
• Hard Probes in Heavy Ion Collisions at the LHC: Jet Physics
• High Pt Hadron Spectra at High Rapidity
• Pion radii in nonlocal chiral quark model
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Cited by in corpus (9)

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• Forward Production in d+Au Collisions by Parton Recombination
• Jet quenching by (pre--)hadronic final state interactions at RHIC
• A Cone Jet-Finding Algorithm for Heavy-Ion Collisions at LHC Energies
• Anomalous suppression of ${\pi }^0$ production at large transverse momentum in Au + Au and d + Au collisions at $\sqrt{{\mathbf{s}}_{\mathbf{NN}}}=$ 200 GeV
• Bulk properties and flow
• Identified Hadron Spectra From pp, dA and AA collisions
• Cronin effect from backward to forward rapidity
• Recent Results from the BRAHMS Experiment