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Correlation of high energy photons and charged particles in p+p and d+Au collisions at $\sqrt{s}=200$ GeV

Subhasis Chattopadhyay
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Abstract

Azimuthal correlations between high energy photons from $π^0$ 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 $\sqrt{s}=200$ GeV. Clear jet-like correlations are observed at $Δϕ=0$ and 180 degrees, with peak widths decreasing with increasing $p_T^{hadron}$. Jet $ $ and $\sqrt{< k_T^2 >}$ in d+Au collisions are deduced from the distributions. {\it These results are presented in Quark Matter 2004 poster session.

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Subhasis Chattopadhyay. 2004-03-11. Correlation of high energy photons and charged particles in p+p and d+Au collisions at $\sqrt{s}=200$ GeV. https://arxiv.org/abs/nucl-ex/0403013

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