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

CMS Collaboration

doi:10.1007/JHEP11(2016)055

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

CMS Collaboration

Research output: Contribution to journal › Article › Research › peer-review

21 Citations (Scopus)

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 (p_T) with respect to both the leading and subleading jet axes in high-p_T dijet events. The contributions of charged particles in different momentum ranges to the overall event p_T balance are decomposed into short-range jet peaks and a long-range azimuthal asymmetry in charged-particle p_T. The results for PbPb collisions are compared to those in pp collisions using data collected in 2011 and 2013, at collision energy √s_NN = 2.76TeV 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 p_T, relative azimuth, and radial distance from the jet axis for balanced and unbalanced dijets.

Original language	English
Article number	55
Number of pages	43
Journal	Journal of High Energy Physics
Volume	2016
Issue number	11
DOIs	https://doi.org/10.1007/JHEP11(2016)055
Publication status	Published - 2016
Externally published	Yes

Keywords

Jet substructure
Heavy Ion Experiments
Heavy-ion collision
Quark gluon plasma

Access to Document

10.1007/JHEP11(2016)055

184456932-oaFinal published version, 758 KB

Cite this

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

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 = 2.76TeV 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.",

keywords = "Jet substructure, Heavy Ion Experiments, Heavy-ion collision, Quark gluon plasma",

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year = "2016",

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journal = "Journal of High Energy Physics",

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T1 - Decomposing transverse momentum balance contributions for quenched jets in PbPb collisions at √sNN = 2.76 TeV

AU - Nash, J

AU - CMS Collaboration

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AB - 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 = 2.76TeV 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.

KW - Jet substructure

KW - Heavy Ion Experiments

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KW - Quark gluon plasma

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DO - 10.1007/JHEP11(2016)055

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JO - Journal of High Energy Physics

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