Medium Effects for Hadron-Tagged Jets in Proton–Proton Collisions

Abstract

We study the medium modification factor Ipp within the light-cone path integral approach to induced gluon emission. We use parametrization of the running coupling αs(Q, T ) which has a plateau around Q ∼ κT . We calculate Ipp with no free parameters using κ fitted to the LHC data on the nuclear modification factor RAA. We find that the theoretical multiplicity dependence of the ratio Ipp/ Ipp for 5.02 TeV pp collisions agrees reasonably with the recent preliminary data from ALICE [1].