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Measurement of the production cross section for W-bosons in association with jets in pp collisions at root s=7 TeV with the ATLAS detector
ATLAS collaboration
2011
发表期刊PHYSICS LETTERS B
卷号698期号:5页码:325-345
通讯作者Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Hermann Herder Str 3, D-79104 Freiburg, Germany.
摘要This Letter reports on a first measurement of the inclusive W + jets cross section in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC, with the ATLAS detector. Cross sections, in both the electron and muon decay modes of the W-boson, are presented as a function of jet multiplicity and of the transverse momentum of the leading and next-to-leading jets in the event. Measurements are also presented of the ratio of cross sections sigma (W + >= n)/sigma(W + >= n - 1) for inclusive jet multiplicities n = 1-4. The results, based on an integrated luminosity of 1.3 pb(-1), have been corrected for all known detector effects and are quoted in a limited and well-defined range of jet and lepton kinematics. The measured cross sections are compared to particle-level predictions based on perturbative QCD. Next-to-leading order calculations, studied here for n <= 2, are found in good agreement with the data. Leading-order multiparton event generators, normalized to the NNLO total cross section, describe the data well for all measured jet multiplicities. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved.
关键词PARTON DISTRIBUTIONS
学科领域Physics
DOI10.1016/j.physletb.2011.03.012
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000290185500001
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213042
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 production cross section for W-bosons in association with jets in pp collisions at root s=7 TeV with the ATLAS detector[J]. PHYSICS LETTERS B,2011,698(5):325-345.
APA ATLAS collaboration.(2011).Measurement of the production cross section for W-bosons in association with jets in pp collisions at root s=7 TeV with the ATLAS detector.PHYSICS LETTERS B,698(5),325-345.
MLA ATLAS collaboration."Measurement of the production cross section for W-bosons in association with jets in pp collisions at root s=7 TeV with the ATLAS detector".PHYSICS LETTERS B 698.5(2011):325-345.
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