# Measurement of jet multiplicity distributions in $t\bar{t}$⎯ production in $pp$ collisions at $\sqrt{s}$=7TeV

CMS Collaboration,; Canelli, M F; Chiochia, V; Kilminster, B; Robmann, P; et al, (2014). Measurement of jet multiplicity distributions in $t\bar{t}$⎯ production in $pp$ collisions at $\sqrt{s}$=7TeV. European Physical Journal C - Particles and Fields, 74:3014.

## Abstract

The normalised differential top quark-antiquark production cross section is measured as a function of the jet multiplicity in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC with the CMS detector. The measurement is performed in both the dilepton and lepton+jets decay channels using data corresponding to an integrated luminosity of 5.0 fb−1 . Using a procedure to associate jets to decay products of the top quarks, the differential cross section of the tt⎯ production is determined as a function of the additional jet multiplicity in the lepton+jets channel. Furthermore, the fraction of events with no additional jets is measured in the dilepton channel, as a function of the threshold on the jet transverse momentum. The measurements are compared with predictions from perturbative quantum chromodynamics and no significant deviations are observed.

## Abstract

The normalised differential top quark-antiquark production cross section is measured as a function of the jet multiplicity in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC with the CMS detector. The measurement is performed in both the dilepton and lepton+jets decay channels using data corresponding to an integrated luminosity of 5.0 fb−1 . Using a procedure to associate jets to decay products of the top quarks, the differential cross section of the tt⎯ production is determined as a function of the additional jet multiplicity in the lepton+jets channel. Furthermore, the fraction of events with no additional jets is measured in the dilepton channel, as a function of the threshold on the jet transverse momentum. The measurements are compared with predictions from perturbative quantum chromodynamics and no significant deviations are observed.

## Statistics

### Citations

Dimensions.ai Metrics
14 citations in Web of Science®
14 citations in Scopus®

### Altmetrics

Detailed statistics

Item Type: Journal Article, refereed, original work 07 Faculty of Science > Physics Institute 530 Physics English 2014 24 Feb 2015 14:24 07 Oct 2019 07:09 Springer 1434-6044 Gold Publisher DOI. An embargo period may apply. https://doi.org/10.1140/epjc/s10052-014-3014-0