Photon-jet correlations at RHIC and the LHC
M. Klasen
TL;DR
This paper provides predictions for photon-jet correlations at RHIC and LHC, highlighting the effects of medium interactions and higher-order QCD effects on observable distributions, and discusses how forward region measurements can probe low parton momentum fractions.
Contribution
It introduces POWHEG-based predictions for photon-jet correlations, emphasizing the impact of medium effects and higher-order QCD corrections at RHIC and LHC.
Findings
Transverse-momentum spectra are affected by medium and QCD effects.
Azimuthal angle distributions reveal higher-order QCD influences.
Forward measurements at LHC probe very low parton momentum fractions.
Abstract
We present POWHEG predictions for photon-jet correlations at RHIC and the LHC. We show that the total transverse-momentum spectrum of photons and jets is modified not only by medium, but also by higher-order QCD effects, as is the distribution in their relative azimuthal angle. At the LHC, photon-jet measurements in the forward region allow to probe parton momentum fractions of lead ions down to 10.
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Taxonomy
TopicsHigh-Energy Particle Collisions Research · Particle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions