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

Decomposing transverse momentum balance contributions for quenched jets in PbPb collisions at √ s_NN=2.76 TeV
Decomposing transverse momentum balance contributions for quenched jets in PbPb collisions at √ s_NN=2.76 TeV
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 sNN−−−−√=2.76 TeV with integrated luminosities of 166 μb−1 and 5.3 pb−1, 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.
1029-8479
Khachatryan, Vardan
375bcfe5-df1a-41ad-9a90-553e557ef6d6
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
The CMS Collaboration
Khachatryan, Vardan
375bcfe5-df1a-41ad-9a90-553e557ef6d6
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3

The CMS Collaboration (2016) Decomposing transverse momentum balance contributions for quenched jets in PbPb collisions at √ s_NN=2.76 TeV. Journal of High Energy Physics, 11, [055]. (doi:10.1007/JHEP11(2016)055).

Record type: Article

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 sNN−−−−√=2.76 TeV with integrated luminosities of 166 μb−1 and 5.3 pb−1, 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.

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Accepted/In Press date: 30 October 2016
e-pub ahead of print date: 9 November 2016
Published date: 9 November 2016
Organisations: Physics & Astronomy

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Local EPrints ID: 407820
URI: http://eprints.soton.ac.uk/id/eprint/407820
ISSN: 1029-8479
PURE UUID: 9e2c8e38-e54a-4df1-849c-dde231e28976
ORCID for Alexander Belyaev: ORCID iD orcid.org/0000-0002-1733-4408

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Date deposited: 26 Apr 2017 01:13
Last modified: 07 Oct 2020 01:53

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Contributors

Author: Vardan Khachatryan
Corporate Author: The CMS Collaboration

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