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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
ATLAS collaboration
2012
发表期刊PHYSICS LETTERS B
卷号707期号:5页码:418-437
通讯作者Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Hugstetter Str 55, D-79106 Freiburg, Germany.
摘要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.
关键词PARTON DISTRIBUTIONS LHC
学科领域Physics
DOI10.1016/j.physletb.2011.12.046
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000300211000002
引用统计
被引频次:31[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213178
专题实验物理中心
作者单位中国科学院高能物理研究所
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ATLAS collaboration. 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[J]. PHYSICS LETTERS B,2012,707(5):418-437.
APA ATLAS collaboration.(2012).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.PHYSICS LETTERS B,707(5),418-437.
MLA ATLAS collaboration."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".PHYSICS LETTERS B 707.5(2012):418-437.
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