UC Berkeley

Jets correlated with isolated photons are a promising channel to study jet quenching in heavy-ion collisions, as photons do not participate in the strong interaction and therefore constrain the Q^2 of the initial hard scattering. We present isolated photon-jet correlations measured in Pb–Pb collisions at sqrt(s_NN) = 5.02 TeV by the ALICE collaboration. We study correlations of isolated photons with 28 < pT < 40 GeV/c with charged-particle jets with pT > 10 GeV/c reconstructed with the anti-kT algorithm and report the azimuthal correlation and pT asymmetry. The correlations probe the lowest jet pT range ever measured at LHC energies, and larger modifications due to the QGP are expected in the lower pT regime. We see no trend in the away-side yield with centrality, but do see a change in the distribution of the pT asymmetry consistent with increasing jet energy loss in more central collisions.