Decomposing transverse momentum balance contributions for quenched jets in PbPb collisions at sqrt(s[NN]) = 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 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.

Replaced with published version. Added the journal reference and DOI. All figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIN-15-011/index.html

References in corpus (8)

• PYTHIA 6.4 Physics and Manual
• Description and performance of track and primary-vertex reconstruction with the CMS tracker
• Observation of long-range near-side angular correlations in proton-lead collisions at the LHC
• Direct observation of dijets in central Au+Au collisions at sqrt(s_NN) = 200 GeV
• Studies of jet quenching using isolated-photon + jet correlations in PbPb and pp collisions at sqrt(s[NN]) = 2.76 TeV
• Measurement of jet fragmentation in PbPb and pp collisions at sqrt(s[NN]) = 2.76 TeV
• Measurement of jet suppression in central Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Transverse momentum and centrality dependence of dihadron correlations in Au+Au collisions at sqrt(s_NN)=200 GeV: Jet-quenching and the response of partonic matter

Cited by in corpus (13)

• First measurement of large area jet transverse momentum spectra in heavy-ion collisions
• Deep learning jet modifications in heavy-ion collisions
• An overview of experimental results from ultra-relativistic heavy-ion collisions at the CERN LHC: hard probes
• Medium Response and Jet-Hadron Correlations in Relativistic Heavy-Ion Collisions
• In-medium modification of dijets in PbPb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV
• Differential measurements of jet substructure and partonic energy loss in Au$+$Au collisions at $\sqrt{s_{\mathrm{NN}}}=200$ GeV
• Hard jet substructure in a multistage approach
• Giving wake to energy-energy correlators: Hydrodynamic response on the celestial sphere
• Jet evolution in a dense QCD medium
• Measurement of medium-induced acoplanarity in central Au-Au and pp collisions at $\sqrt{s_{\mathrm{NN}}}=200$ GeV using direct-photon+jet and ${\pi }^0$+jet correlations
• Observation of the jet diffusion wake using dijets in heavy ion collisions
• Studying the QGP with Jets at the LHC and RHIC
• The effect of recoils on soft-drop-groomed observables in $\gamma$-tagged jets in a multistage approach