Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/5067
Title: Measurement of the cross section for the production of a W boson in association with b-jets in pp collisions at root s=7 TeV with the ATLAS detector
Authors: Aad, G.
Abbott, B.
Abdallah, J.
Abdelalim, A. A.
Abdesselam, A.
Abdinovl, O.
The ATLAS Collaboration
Sultansoy, Saleh
Keywords: [No Keywords]
Issue Date: 2012
Publisher: Elsevier
Abstract: A measurement is presented of the cross section for the production of a W boson with one or two jets, of which at least one must be a b-jet, in pp collisions at root s = 7 TeV. Production via top decay is not included in the signal definition. The measurement is based on 35 pb(-1) of data collected with the ATLAS detector at the LHC. The W + b-jet cross section is defined for jets reconstructed with the anti-k(t) clustering algorithm with transverse momentum above 25 GeV and rapidity within +/-2.1. The b-jets are identified by reconstructing secondary vertices. The fiducial cross section is measured both for the electron and muon decay channel of the W boson and is found to be 10.2 +/- 1.9(stat) +/- 2.6(syst) pb for one lepton flavour. The results are compared with next-to-leading order QCD calculations, which predict a cross section smaller than, though consistent with, the measured value. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved.
URI: https://doi.org/10.1016/j.physletb.2011.12.046
https://hdl.handle.net/20.500.11851/5067
ISSN: 0370-2693
1873-2445
Appears in Collections:Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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