Measurement of the Production Cross Section of a W Boson in Association with Two b Jets in pp Collisions at √s = 8 TeV

European Physical Journal C 2017
CERN international group of authors, Viesturs Veckalns

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=8TeV collected by the CMS experiment at the CERN LHC. The data sample corresponds to an integrated luminosity of 19.8fb-1. The W bosons are reconstructed via their leptonic decays, W → ℓν, where ℓ= μ or e. The fiducial region studied contains exactly one lepton with transverse momentum pTℓ > 30GeV and pseudorapidity | η ℓ | < 2.1 , with exactly two b jets with pT > 25GeV and | η| < 2.4 and no other jets with pT > 25GeV and | η| < 4.7. The cross section is measured to be σ(p p → W (ℓν) +bb¯)=0.64±0.03(stat)±0.10(syst)±0.06(theo)±0.02(lumi)pb, in agreement with standard model predictions.

DOI
10.1140/epjc/s10052-016-4573-z
Hipersaite
https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-016-4573-z

international group of authors, C., Veckalns, V. Measurement of the Production Cross Section of a W Boson in Association with Two b Jets in pp Collisions at √s = 8 TeV. European Physical Journal C, 2017, Vol.77, No.2, 1.-10.lpp. ISSN 1434-6044. e-ISSN 1434-6052. Pieejams: doi:10.1140/epjc/s10052-016-4573-z

Publikācijas valoda
English (en)