Jet suppression and jet substructure in Pb plus Pb and Xe plus Xe collisions with the ATLAS detector

This short summary presents latest measurements of the nuclear modification factor, R-AA, for R = 0.4 jets in Pb+Pb collisions at root s(NN) = 5.02 TeV with the ATLAS detector at the LHC. The analysis is performed over a large range of transverse momentum, up to p(T) = 1 TeV, and differentially in j...

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Bibliographic Details
Published in:Nuclear physics. A 2019, Vol.982, p.611
Main Authors: Spousta, Martin, Jensen, Bengt, Ohm, Christian, Ripellino, Giulia, Sidebo, P. Edvin, Strandberg, Jonas, Zwalinski, L.
Format: Article
Language:English
Subjects:
dijet asymmetry
heavy-ion collisions
inclusive jet suppression
jet quenching
Online Access:Get full text
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Summary:This short summary presents latest measurements of the nuclear modification factor, R-AA, for R = 0.4 jets in Pb+Pb collisions at root s(NN) = 5.02 TeV with the ATLAS detector at the LHC. The analysis is performed over a large range of transverse momentum, up to p(T) = 1 TeV, and differentially in jet p(T), rapidity, and collision centrality. The jet R-AA is measured also differentially in the jet mass, m, which provides new information on the dependence of the energy loss on the substructure of jets. Latest results by ATLAS on the dijet momentum balance in Xe+Xe collisions at root s(NN) = 5.44 TeV are presented and compared to the same quantity measured in Pb+Pb collisions at root s(NN) = 5.02 TeV. These recent measurements should help us understand mechanisms of parton energy loss and properties of hot and dense matter created in heavy-ion collisions.
ISSN:0375-9474
1873-1554
DOI:10.1016/j.nuclphysa.2018.08.031