TY - JOUR
T1 - Measurement of the cross section for the production of a W boson in association with b-jets in pp collisions at √s = 7 TeV with the ATLAS detector
AU - ATLAS Collaboration
AU - Aad, G.
AU - Abbott, B.
AU - Abdallah, J.
AU - Abdelalim, A. A.
AU - Abdesselam, A.
AU - Abdinov, O.
AU - Abi, B.
AU - Abolins, M.
AU - Abramowicz, H.
AU - Abreu, H.
AU - Acerbi, E.
AU - Acharya, B. S.
AU - Adams, D. L.
AU - Addy, T. N.
AU - Adelman, J.
AU - Aderholz, M.
AU - Adomeit, S.
AU - Adragna, P.
AU - Adye, T.
AU - Aefsky, S.
AU - Aguilar-Saavedra, J. A.
AU - Aharrouche, M.
AU - Ahlen, S. P.
AU - Ahles, F.
AU - Ahmad, A.
AU - Ahsan, M.
AU - Aielli, G.
AU - Akdogan, T.
AU - Åkesson, T. P.A.
AU - Akimoto, G.
AU - Akimov, A. V.
AU - Akiyama, A.
AU - Alam, M. S.
AU - Alam, M. A.
AU - Albert, J.
AU - Albrand, S.
AU - Aleksa, M.
AU - Aleksandrov, I. N.
AU - Alessandria, F.
AU - Alexa, C.
AU - Alexander, G.
AU - Alexandre, G.
AU - Alexopoulos, T.
AU - Alhroob, M.
AU - Aliev, M.
AU - Barak, L.
AU - Bella, G.
AU - Etzion, E.
AU - Oren, Y.
AU - Soffer, A.
N1 - Publisher Copyright:
© 2011 CERN.
PY - 2012/2/1
Y1 - 2012/2/1
N2 - 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 √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 antikt 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.
AB - 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 √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 antikt 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.
UR - http://www.scopus.com/inward/record.url?scp=84941998031&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2011.12.046
DO - 10.1016/j.physletb.2011.12.046
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AN - SCOPUS:84941998031
SN - 0370-2693
VL - 707
SP - 418
EP - 437
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 5
ER -