In:
Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2013, No. 6 ( 2013-06)
Abstract:
This paper reports a measurement of the W + b -jets ( W + b + X and W + $ b\overline{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 −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) $ _{-0.49}^{+0.60 } $ (scale) ±0.06 (PDF) ±0.16 (non-pert) $ _{-0.38}^{+0.52 } $ (DPI) pb.
Type of Medium:
Online Resource
ISSN:
1029-8479
DOI:
10.1007/JHEP06(2013)084
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2013
detail.hit.zdb_id:
2027350-2
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