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

, The ATLAS collaboration (2013) 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. Journal of High Energy Physics, 2013 (6). ISSN 1029-8479

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Abstract

This paper reports a measurement of the W +b-jets (W +b+ X and W + bb¯ +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−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) +0.60−0.49 (scale) ±0.06 (PDF) ±0.16 (non-pert) +0.52−0.38 (DPI) pb.

Item Type:
Journal Article
Journal or Publication Title:
Journal of High Energy Physics
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
67805
Deposited By:
Deposited On:
29 Nov 2013 14:57
Refereed?:
Yes
Published?:
Published
Last Modified:
16 Feb 2021 03:23