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High $p_T$ correlations of $γ$ and charged hadrons at RHIC

Kirill Filimonov
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Abstract

Prompt photon production in ultra-relativistic heavy-ion collisions provides a calibrated probe for the study of the properties of high energy density QCD matter. Especially interesting are the measurements of $γ$-tagged jets where the hard scattering scale is known and can be used to determine the partonic energy loss in the dense matter. We discuss the potential of $γ$-jet measurements at the Relativistic Heavy Ion Collider (RHIC) and argue that the observed supression of the away-side correlations for di-jet production in central Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV should significantly reduce the backgrounds for the $γ$-jet coincidence measurements.

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Kirill Filimonov. 2005-05-09. High $p_T$ correlations of $γ$ and charged hadrons at RHIC. https://doi.org/10.1556/aph.25.2006.2-4.26

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