Measurement of the production cross section of a W boson in association with two b jets in pp collisions at √s = 8TeV $

CMS Collaboration

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Abstract

The production cross section of a W boson in association with two b jets is measured using a sample of proton–proton collisions at √s = 8 TeV collected by the CMS experiment at the CERN LHC. The data sample corresponds to an integrated luminosity of 19.8 fb−1. The W bosons are reconstructed via their leptonic decays, W → , where l = μ or e. The fiducial region studied contains exactly one lepton with transverse momentum plT > 30 GeV and pseudorapidity |ηl| < 2.1, with exactly two b jets with pT > 25 GeV and |η| < 2.4 and no other jets with pT > 25 GeV and |η| < 4.7. The cross section is measured to be σ(pp → W()+bb‾) = 0.64 ±0.03 (stat) ±0.10 (syst) ±0.06 (theo) ±0.02 (lumi) pb, in agreement with standard model predictions.
Original languageEnglish
Article number92
Number of pages23
JournalEuropean Physical Journal C
Volume77
Issue number2
DOIs
Publication statusPublished - 2017
Externally publishedYes

Keywords

  • Collisions
  • Bosons
  • Jets

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