Measurement of the production cross section of a W boson in association with two b jets in pp collisions at [?] = 8 TeV

Authors

• Ekaterina Avdeeva, University of Nebraska-LincolnFollow
• Kenneth A. Bloom, University of Nebraska-LincolnFollow
• S. S. Bose, University of Nebraska-LincolnFollow
• Jamila Butt, University of Nebraska-Lincoln
• Daniel R. Claes, University of Nebraska-LincolnFollow
• Aaron Dominguez, University of Nebraska-LincolnFollow
• M. Eads, University of Nebraska-Lincoln, Lincoln,Follow
• R. Gonzalez Suarez, University of Nebraska-Lincoln
• P. Jindal, University of Nebraska-Lincoln
• J. Keller, University of Nebraska-LincolnFollow
• D. Knowlton, University of Nebraska-LincolnFollow
• Ilya Kravchenko, University of Nebraska-LincolnFollow
• Jose Lazo-Flores, University of Nebraska-LincolnFollow
• Helena Malbouisson, University of Nebraska-Lincoln
• Sudhir Malik, University of Nebraska-LincolnFollow
• F. Meier, University of Nebraska-Lincoln, Lincoln,Follow
• Gregory Snow, University of Nebraska-LincolnFollow
• CMS Collaboration

Document Type

Article

Date of this Version

2017

Citation

Eur. Phys. J. C (2017) 77:92

Comments

© CERN for the benefit of the CMS collaboration 2017.

Open access

DOI 10.1140/epjc/s10052-016-4573-z

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 [?] = 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 → [?]ν, where [?] = μ or e. The fiducial region studied contains exactly one lepton with transverse momentum [?] > 30 GeV and pseudorapidity |η^[?]| < 2.1, with exactly two b jets with p_T > 25 GeV and |η| < 2.4 and no other jets with p_T > 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.