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Search for tb Resonances in Proton-Proton Collisions at root s=7 TeV with the ATLAS Detector
ATLAS collaboration
2012
发表期刊PHYSICAL REVIEW LETTERS
卷号109期号:8
通讯作者Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Hugstetter Str 55, D-79106 Freiburg, Germany.
摘要This Letter presents a search for tb resonances in 1.04 fb(-1) of LHC proton-proton collision data collected by the ATLAS detector at a center-of-mass energy of 7 TeV. Events with a lepton, missing transverse momentum, and two jets are selected and the invariant mass of the corresponding final state is reconstructed. The search exploits the shape of the tb invariant mass distribution compared to the expected standard model backgrounds. The model of a right-handed W'(R) with standard model-like couplings is chosen as the benchmark model for this search. No statistically significant excess of events is observed in the data, and upper limits on the cross section times the branching ratio of W'(R) resonances at 95% C.L. lie in the range of 6.1-1.0 pb for W'(R) masses ranging from 0.5 to 2.0 TeV. These limits are translated into a lower bound on the allowed right-handed W'(R) mass, giving mW'(R) > 1.13 TeV at 95% C.L.
关键词PARTON DISTRIBUTIONS
学科领域Physics
DOI10.1103/PhysRevLett.109.081801
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000307712400003
引用统计
被引频次:29[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/311005/213320
专题实验物理中心
作者单位中国科学院高能物理研究所
推荐引用方式
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ATLAS collaboration. Search for tb Resonances in Proton-Proton Collisions at root s=7 TeV with the ATLAS Detector[J]. PHYSICAL REVIEW LETTERS,2012,109(8).
APA ATLAS collaboration.(2012).Search for tb Resonances in Proton-Proton Collisions at root s=7 TeV with the ATLAS Detector.PHYSICAL REVIEW LETTERS,109(8).
MLA ATLAS collaboration."Search for tb Resonances in Proton-Proton Collisions at root s=7 TeV with the ATLAS Detector".PHYSICAL REVIEW LETTERS 109.8(2012).
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