Correlation of high energy photons and charged particles in p+p and d+Au collisions at √(s)=200 GeV

2004/03/11 by Subhasis Chattopadhyay, S. Chattopadhyay, Chattopadhyay, Subhasis
Decision Sciences · Physics and Astronomy · #FOS: Physical sciences #High-Energy Particle Collisions Research #Nuclear Experiment (nucl-ex) #Probability and Risk Models #nucl-ex

paper · pdf · doi:10.48550/arxiv.nucl-ex/0403013

4 pages.Presented in Quark Matter'2004 conference, poster session

arxiv created 2004/03/11 · openalex publication_date 2004/03/11 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Azimuthal correlations between high energy photons from π⁰ decay (p_T^γ < 10.5 GeV) and charged hadrons (p_T^hadron above a threshold of 2, 3 or 4 GeV/c) have been measured in p+p and d+Au collisions at √(s)=200 GeV. Clear jet-like correlations are observed at Δϕ=0 and 180 degrees, with peak widths decreasing with increasing p_T^hadron. Jet and √(< k_T² >) in d+Au collisions are deduced from the distributions. \it These results are presented in Quark Matter 2004 poster session.

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