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Search for heavy vector-like quarks coupling to light quarks in proton-proton collisions at root s=7 TeV with the ATLAS detector
ATLAS collaboration
2012
发表期刊PHYSICS LETTERS B
卷号712期号:1--2页码:22-39
通讯作者Arik, M (reprint author), Bogazici Univ, Dept Phys, Istanbul, Turkey.
摘要This Letter presents a search for singly produced vector-like quarks, Q, coupling to light quarks, q. The search is sensitive to both charged current (CC) and neutral current (NC) processes, pp -> Qq -> Wqq' and pp -> Qq -> Zqq' with a leptonic decay of the vector gauge boson. In 1.04 fb(-1) of data taken in 2011 by the ATLAS experiment at a center-of-mass energy root s = 7 TeV, no evidence of such heavy vector-like quarks is observed above the expected Standard Model background. Limits on the heavy vector-like quark production cross section times branching ratio as a function of mass m(Q) are obtained. For a coupling K-qQ = v/m(Q), where v is the Higgs vacuum expectation value, 95% C.L. lower limits on the mass of a vector-like quark are set at 900 GeV and 760 GeV from CC and NC processes, respectively. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.
关键词ELECTROWEAK SYMMETRY-BREAKING
学科领域Physics
DOI10.1016/j.physletb.2012.03.082
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000304742500005
引用统计
被引频次:26[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/311005/213249
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
GB/T 7714
ATLAS collaboration. Search for heavy vector-like quarks coupling to light quarks in proton-proton collisions at root s=7 TeV with the ATLAS detector[J]. PHYSICS LETTERS B,2012,712(1--2):22-39.
APA ATLAS collaboration.(2012).Search for heavy vector-like quarks coupling to light quarks in proton-proton collisions at root s=7 TeV with the ATLAS detector.PHYSICS LETTERS B,712(1--2),22-39.
MLA ATLAS collaboration."Search for heavy vector-like quarks coupling to light quarks in proton-proton collisions at root s=7 TeV with the ATLAS detector".PHYSICS LETTERS B 712.1--2(2012):22-39.
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