Puri, AkshatAaboud, M.Aad, G.Abbott, B.Abdinov, O.Abeloos, B.Abhayasinghe, D. K.Abidi, S. H.Izen, Joseph M.Meirose, BernhardReeves, KendallATLAS Collaboration2020-10-292020-10-292019-01-220375-9474https://dx.doi.org/10.1016/j.nuclphysa.2018.09.021https://hdl.handle.net/10735.1/9057Studies of the fragmentation of jets into charged particles in heavy-ion collisions can help in understanding the mechanism of jet quenching by the hot and dense QCD matter created in such collisions, the quark-gluon plasma. These proceedings present a measurement of the angular distribution of charged particles around the jet axis in √{sₙₙ} = 5.02 TeV Pb+Pb and pp collisions, done using the ATLAS detector at the LHC. The measurement is performed inside jets reconstructed with the anti-kₜ algorithm with radius parameter R = 0.4, and is extended to regions outside the jet cone. Results are presented as a function of Pb+Pb collision centrality, and both jet and charged-particle transverse momenta.enCC BY-NC-ND 4.0 (Attribution-NonCommercial-NoDerivatives)©2019 CERN for the benefit of the ATLAS Collaborationhttp://creativecommons.org/licenses/by-nc-nd/4.0/Jets (Nuclear physics)Nuclear fragmentationPhysicsLead-lead interactionsProton-proton interactionsLarge Hadron Collider (France and Switzerland)articlePuri, Akshat, M. Aaboud, G. Aad, B. Abbott, et al. 2019. "Measurement of angular and momentum distributions of charged particles within and around jets in Pb+Pb and pp collisions at √{sₙₙ} = 5.02 TeV with ATLAS at the LHC." Nuclear Physics A 982: 177-179, doi: 10.1016/j.nuclphysa.2018.09.021982