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

Subhasis Chattopadhyay

Azimuthal correlations between high energy photons from ${\pi }^0$ decay ($p_T^{\gamma }<10.5$ GeV) and charged hadrons ($p_T^{hadron}$ above a threshold of 2, 3 or 4 GeV/c) have been measure…