Measurement of \mathrm t\mathrm t t t ¯ production with additional jet activity, including \mathrm b b quark jets, in the dilepton decay channel using pp collisions at √(s) = 8 \text TeV s = 8 TeV

2015/10/31 by CMS Collaboration, V. Khachatryan, A. M. Sirunyan +97 · 1 citation
Physics and Astronomy · #Geometry #High-Energy Particle Collisions Research #Jet (fluid) #Large Hadron Collider #Nuclear physics #Pair production #Particle physics #Particle physics theoretical and experimental studies #Perturbative QCD #Physics #Production (economics) #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #Scalar (mathematics) #hep-ex

paper · pdf · doi:10.1140/epjc/s10052-016-4105-x

published as Eur. Phys. J. C 76 (2016) 379 · 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/TOP-12-041/index.html

openalex created_date 2016/06/24 · openalex publication_date 2016/07/01 · arxiv created 2016/07/29 · arxiv updated 2016/08/01 · openalex updated_date 2026/08/05

Abstract

Jet multiplicity distributions in top quark pair ([Formula: see text]) events are measured in pp collisions at a centre-of-mass energy of 8 TeV with the CMS detector at the LHC using a data set corresponding to an integrated luminosity of 19.7[Formula: see text]. The measurement is performed in the dilepton decay channels ([Formula: see text], [Formula: see text], and [Formula: see text]). The absolute and normalized differential cross sections for [Formula: see text] production are measured as a function of the jet multiplicity in the event for different jet transverse momentum thresholds and the kinematic properties of the leading additional jets. The differential [Formula: see text] and [Formula: see text] cross sections are presented for the first time as a function of the kinematic properties of the leading additional [Formula: see text] jets. Furthermore, the fraction of events without additional jets above a threshold is measured as a function of the transverse momenta of the leading additional jets and the scalar sum of the transverse momenta of all additional jets. The data are compared and found to be consistent with predictions from several perturbative quantum chromodynamics event generators and a next-to-leading order calculation.

Citations

• Measurement of the Top Quark Mass Using Dilepton Events
• Proceedings of the Sixth International Workshop on Multiple Partonic Interactions at the Large Hadron Collider
• The PDF4LHC Working Group Interim Report
• The PDF4LHC Working Group Interim Recommendations
• WBoson Production Cross Section at the Large Hadron Collider withO(αs2)Corrections
• t t W± + t t Z hadroproduction at NLO accuracy in QCD with Parton Shower and Hadronization effects
• The anti-ktjet clustering algorithm
• The catchment area of jets
• Parton distributions for the LHC run II
• Review of Multibody Charm Analyses
• Big-Bang Nucleosynthesis

Cited by

• Searches for R-parity-violating supersymmetry in pp collisions at s=8 TeV in final states with 0–4 leptons

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