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Based on a pQCD inspired dynamical model of jet-medium interactions, Jewel,we have studied possible modifications to inclusive jet yields and a set of jetshape observables, namely, the fragmentation functions and radial momentumdistributions when jets propagate through a deconfined partonic medium createdin collisions of heavy nuclei at Large Hadron Collider (LHC) energies. Jets arereconstructed with anti-k T algorithm in the pseudorapidity range $|\eta_{\rmjet} | < 2.1$ for resolution parameter R= 0.2, 0.3 and 0.4. For backgroundsubtraction, a Jewel-compatible 4-Momenta subtraction technique (4MomSub) havebeen used. The modification of inclusive jet-yields in Pb-Pb collisionsrelative to proton-proton interactions, quantified by $R^{\rm jet}_{AA}$, areseen to be in reasonable agreement with ALICE, ATLAS and CMS data over a broadtransverse momentum range. Jewel is able to capture the qualitative features ofthe modifications to the fragmentation functions and radial momentumdistributions in data but not always quantitatively. This quantitativediscrepancy may be related to the simplified treatment of recoil partons in thebackground model and partly due to background subtraction procedure itself.Nevertheless, observed modification of jet shape variables in Jewelcorroborates the fact that in-medium fragmentation is harder and morecollimated than the fragmentation in vacuum. We further observe that thesemodifications depend on the transverse momentum of jets and it seems thatmedium resolves the core structure of low momentum jets below 100 GeV/c at LHCenergies.

Study of jet-medium interactions using jet shape observables in heavy ion collisions at LHC energies with JEWEL