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Decomposing transverse momentum balance contributions for quenched jets in PbPb collisions at √sNN = 2.76 TeV
Journal article   Open access   Peer reviewed

Decomposing transverse momentum balance contributions for quenched jets in PbPb collisions at √sNN = 2.76 TeV

CMS Collaboration
Journal of high energy physics : JHEP, Vol.2016(11), 55
09/08/2016
DOI: 10.1007/JHEP11(2016)055
url
https://doi.org/10.1007/JHEP11(2016)055View
Published (Version of record) Open Access

Abstract

Interactions between jets and the quark-gluon plasma produced in heavy ion collisions are studied via the angular distributions of summed charged-particle transverse momenta (pt) with respect to both the leading and subleading jet axes in high-pt dijet events. The contributions of charged particles in different momentum ranges to the overall event pt balance are decomposed into short-range jet peaks and a long-range azimuthal asymmetry in charged-particle pt. The results for PbPb collisions are compared to those in pp collisions using data collected in 2011 and 2013, at collision energy sqrt(s[NN]) = 2.76 TeV with integrated luminosities of 166 inverse microbarns and 5.3 inverse picobarns, respectively, by the CMS experiment at the LHC. Measurements are presented as functions of PbPb collision centrality, charged-particle pt, relative azimuth, and radial distance from the jet axis for balanced and unbalanced dijets.
Charged particles Decomposition Gluons Heavy ions Ionic collisions Large Hadron Collider Quark-gluon plasma Quarks Solenoids Transverse momentum

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