Measurement of Suppression of Large-Radius Jets and Its Dependence on Substructure in Pb+Pb Collisions at Snn…
Physical Review Letters（2023）
Centre de physique des particules de Marseille | Laboratoire d’Annecy de Physique des Particules | Université Paris Cité | Laboratoire de Physique Nucléaire et de Hautes Énergies | Laboratoire de Physique Subatomique et de Cosmologie | Commissariat à l'Énergie Atomique et aux Énergies Alternatives | Laboratoire de Physique des 2 Infinis Irène Joliot-Curie | CEA Paris-Saclay | Institut de Recherche sur les Lois Fondamentales de l'Univers | Laboratoire AstroParticule et Cosmologie
Abstract
This letter presents a measurement of the nuclear modification factor of large-radius jets in sqrt[s_{NN}]=5.02 TeV Pb+Pb collisions by the ATLAS experiment. The measurement is performed using 1.72 nb^{-1} and 257 pb^{-1} of Pb+Pb and pp data, respectively. The large-radius jets are reconstructed with the anti-k_{t} algorithm using a radius parameter of R=1.0, by reclustering anti-k_{t} R=0.2 jets, and are measured over the transverse momentum (p_{T}) kinematic range of 158
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