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Measurement of the production cross section of a W boson in association with two b jets in pp collisions at √s = 8 TeV
CMS Collaboration
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√=8TeV 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→ℓν , where ℓ=μ or e . The fiducial region studied contains exactly one lepton with transverse momentum pℓT>30GeV and pseudorapidity |ηℓ|<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(pp→W(ℓν) + bb¯¯¯)=0.64±0.03(stat)±0.10(syst)±0.06(theo)±0.02(lumi)pb , in agreement with standard model predictions
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2017
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Springer Verlag
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Khachatryan, V., Sirunyan, A.M., Tumasyan, A. et al. Eur. Phys. J. C (2017) 77: 92. https://doi.org/10.1140/epjc/s10052-016-4573-z