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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=8TeV

  • Author(s): Khachatryan, V
  • Sirunyan, AM
  • Tumasyan, A
  • Adam, W
  • Asilar, E
  • Bergauer, T
  • Brandstetter, J
  • Brondolin, E
  • Dragicevic, M
  • Erö, J
  • Flechl, M
  • Friedl, M
  • Frühwirth, R
  • Ghete, VM
  • Hartl, C
  • Hörmann, N
  • Hrubec, J
  • Jeitler, M
  • König, A
  • Krätschmer, I
  • Liko, D
  • Matsushita, T
  • Mikulec, I
  • Rabady, D
  • Rad, N
  • Rahbaran, B
  • Rohringer, H
  • Schieck, J
  • Strauss, J
  • Treberer-Treberspurg, W
  • Waltenberger, W
  • Wulz, CE
  • Mossolov, V
  • Shumeiko, N
  • Gonzalez, JS
  • Alderweireldt, S
  • De Wolf, EA
  • Janssen, X
  • Lauwers, J
  • Van De Klundert, M
  • Van Haevermaet, H
  • Van Mechelen, P
  • Van Remortel, N
  • Van Spilbeeck, A
  • Zeid, SA
  • Blekman, F
  • D’Hondt, J
  • Daci, N
  • De Bruyn, I
  • Deroover, K
  • Heracleous, N
  • Lowette, S
  • Moortgat, S
  • Moreels, L
  • Olbrechts, A
  • Python, Q
  • Tavernier, S
  • Van Doninck, W
  • Van Mulders, P
  • Van Parijs, I
  • Brun, H
  • Caillol, C
  • Clerbaux, B
  • De Lentdecker, G
  • Delannoy, H
  • Fasanella, G
  • Favart, L
  • Goldouzian, R
  • Grebenyuk, A
  • Karapostoli, G
  • Lenzi, T
  • Léonard, A
  • Luetic, J
  • Maerschalk, T
  • Marinov, A
  • Randle-conde, A
  • Seva, T
  • Velde, CV
  • Vanlaer, P
  • Yonamine, R
  • Zenoni, F
  • Zhang, F
  • Cimmino, A
  • Cornelis, T
  • Dobur, D
  • Fagot, A
  • Garcia, G
  • Gul, M
  • Poyraz, D
  • Salva, S
  • Schöfbeck, R
  • Tytgat, M
  • Van Driessche, W
  • Yazgan, E
  • Zaganidis, N
  • Bakhshiansohi, H
  • Beluffi, C
  • Bondu, O
  • Brochet, S
  • Bruno, G
  • et al.
Abstract

© 2017, CERN for the benefit of the CMS collaboration. 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 | 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(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.

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