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Measurement of the cross-section for W boson production in association with b-jets in pp collisions at √s = 7 TeV with the ATLAS detector

Author(s)
Taylor, Frank E.
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Abstract
This paper reports a measurement of the W +b-jets (W +b+ X and W + b[¯ over b] +X) production cross-section in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC. These results are based on data corresponding to an integrated luminosity of 4.6 fb[superscript −1], collected with the ATLAS detector. Cross-sections are presented as a function of jet multiplicity and of the transverse momentum of the leading b-jet for both the muon and electron decay modes of the W boson. The W +b-jets cross-section, corrected for all known detector effects, is quoted in a limited kinematic range. Combining the muon and electron channels, the fiducial cross-section for W +b-jets is measured to be 7.1 ± 0.5 (stat) ± 1.4 (syst) pb, consistent with the next-to-leading order QCD prediction, corrected for non-perturbative and double-parton interactions (DPI) contributions, of 4.70 ± 0.09 (stat) [+0.60 over −0.49] (scale) ±0.06 (PDF) ±0.16 (non-pert) [+0.52 over −0.38] (DPI) pb.
Date issued
2013-06
URI
http://hdl.handle.net/1721.1/86105
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Journal of High Energy Physics
Publisher
Springer-Verlag
Citation
Aad, G., T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, A. A. Abdelalim, O. Abdinov, et al. “Measurement of the Cross-Section for W Boson Production in Association with b-Jets in Pp Collisions at √s = 7 TeV with the ATLAS Detector.” J. High Energ. Phys. 2013, no. 6 (June 2013). © CERN, for the benefit of the ATLAS collaboration
Version: Final published version
ISSN
1029-8479
1126-6708

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