Speaker
Description
By means of a global fit to all available central hadron and jet RAA measurements in heavy ion collisions at the LHC, we constrain the hybrid model free parameter while obtaining an execellent description of those data. With the narrow range of parameters obtained by this procedure, we perform a detailed investigation of the mechanism of jet suppression in heavy ions as a function of the jet properties. A salient example is the dependence of jet RAA on the reconstruction radius R, for which our model yields a non-monotonic behaviour and a significant suppression even for large jet radius. We show that this interesting pattern is a consequence of the observation that wider jets lose more energy in combination with the effect of medium response. We further explore the consequences of this characteristic feature of our model on the new generation of groomed jet substructure observables, obtaining in particular good qualitative agreement with the measured difference between medium-modified and vacuum Lund map distribution.
