Exploring jet substructure with jet shapes in ALICE

The characterisation of the jet substructure can give insight into the microscopic nature of the modification induced on high-momentum partons by the Quark-Gluon Plasma that is formed in ultra-relativistic heavy-ion collisions. This modification of parton-to-jet fragmentation and of the parton virtuality, induced by the QGP, can be studied using jet shapes, in particular using jet energy redistribution, intra-jet broadening or collimation. Results of a selected set of jet shapes are presented for p-Pb collisions at root S-NN = 5.02 TeV and for Pb-Pb collisions at root S-NN = 2.76 TeV. Results are also compared with PYTHIA Perugia 11 calculations and models that include in-medium energy loss.