Measurements of differential cross sections for associated production of a W boson and jets in proton-proton collisions at s =8 TeV

CMS Collaboration

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Differential cross sections for a W boson produced in association with jets are measured in a data sample of proton-proton collisions at a center-of-mass energy of 8 TeV recorded with the CMS detector and corresponding to an integrated luminosity of 19.6 fb-1. The W bosons are identified through their decay mode W→μν. The cross sections are reported as functions of jet multiplicity, transverse momenta, and the scalar sum of jet transverse momenta (HT) for different jet multiplicities. Distributions of the angular correlations between the jets and the muon are examined, as well as the average number of jets as a function of HT and as a function of angular variables. The measured differential cross sections are compared with tree-level and higher-order recent event generators, as well as next-to-leading-order and next-to-next-to-leading-order theoretical predictions. The agreement of the generators with the measurements builds confidence in their use for the simulation of W+jets background processes in searches for new physics at the LHC.

Original languageEnglish
Article number052002
JournalPhysical Review D
Volume95
Issue number5
DOIs
Publication statusPublished - Mar 1 2017

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bosons
collisions
protons
cross sections
transverse momentum
generators
angular correlation
center of mass
muons
confidence
luminosity
scalars
physics
detectors
decay
predictions
simulation
energy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Measurements of differential cross sections for associated production of a W boson and jets in proton-proton collisions at s =8 TeV. / CMS Collaboration.

In: Physical Review D, Vol. 95, No. 5, 052002, 01.03.2017.

Research output: Contribution to journalArticle

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abstract = "Differential cross sections for a W boson produced in association with jets are measured in a data sample of proton-proton collisions at a center-of-mass energy of 8 TeV recorded with the CMS detector and corresponding to an integrated luminosity of 19.6 fb-1. The W bosons are identified through their decay mode W→μν. The cross sections are reported as functions of jet multiplicity, transverse momenta, and the scalar sum of jet transverse momenta (HT) for different jet multiplicities. Distributions of the angular correlations between the jets and the muon are examined, as well as the average number of jets as a function of HT and as a function of angular variables. The measured differential cross sections are compared with tree-level and higher-order recent event generators, as well as next-to-leading-order and next-to-next-to-leading-order theoretical predictions. The agreement of the generators with the measurements builds confidence in their use for the simulation of W+jets background processes in searches for new physics at the LHC.",
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