Forward Pion Production in Hadron Collisions at STAR

2005/01/26 by G. Rakness, Rakness, G.
Physics and Astronomy · #FOS: Physical sciences #High-Energy Particle Collisions Research #Nuclear Experiment (nucl-ex) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.nucl-ex/0501026

openalex publication_date 2005/01/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Measurements are reported of the production of high energy pi⁰ mesons at large pseudorapidity, coincident with charged hadrons at mid-rapidity, for proton+proton and deuteron+gold collisions at sqrts_NN=200 GeV. The p+p cross section for inclusive pi⁰ production follows expectations from next-to-leading order perturbative QCD. A suppression of the back-to-back azimuthal correlations was observed in d+Au, qualitatively consistent with the gluon saturation picture. Experimental uncertainties regarding the inclusive measurement are discussed.

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