Measurement of differential cross sections and $W^+/W^-$ cross-section ratios for $W$ boson production in association with jets at $\sqrt{s}=8$ TeV with the ATLAS detector

CERN-LHC. This paper presents a measurement of the W boson production cross section and the W+/W- cross-section ratio, both in association with jets, in proton-proton collisions at sqrt(s) = 8 TeV with the ATLAS experiment at the Large Hadron Collider. The measurement is performed in final states containing one electron and missing transverse momentum using data corresponding to an integrated luminosity of 20.2 fb^-1. Differential cross sections for events with at least one or two jets are presented for a range of observables, including jet transverse momenta and rapidities, the scalar sum of transverse momenta of the visible particles in the event, and the transverse momentum of the W boson. For a subset of the observables, the differential cross sections of positively and negatively charged W bosons are measured separately. In the cross-section ratio of W+/W- the dominant systematic uncertainties cancel out, improving the measurement precision by up to a factor of nine. The observables and ratios selected for this paper provide valuable input for the up quark, down quark, and gluon parton distribution functions of the proton.

Data and Resources

Additional Info

Field Value
Imported on November 17, 2025
Last update November 17, 2025
Keywords
  • cmenergies: 8000.0-8000.0
  • observables: NPC
  • observables: DSIG/DX
  • observables: NNLO/NLO
  • observables: SIG
  • observables: CORR
  • Cross Section
  • Proton-Proton Scattering
  • Differential Cross Section
  • Integrated Cross Section
  • W Production
  • Statistical Correlation
  • Non-perturbative Correction
  • NNLO/NLO k-factor
  • Jet Production
  • Inclusive
  • Systematics List
  • P P --> W JET(S) X
Defined In https://doi.org/10.1007/JHEP05(2018)077
Author Morad Aaboud
More Authors
Georges Aad
Brad Abbott
Ovsat Abdinov
Baptiste Abeloos
Syed Haider Abidi
Ossama AbouZeid
Nicola Abraham
Halina Abramowicz
Henso Abreu
Repository Name INSPIRE-HEP
Source Creation February 17, 2025
Source Modified March 26, 2025
Language Deutsch
Publication Year 2019-03-01