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Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC
Atlas Collaboration
2012
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
期号11
通讯作者Aad, G (reprint author), Univ Adelaide, Sch Chem & Phys, N Terrace Campus, Adelaide, SA 5000, Australia.
摘要The results of a search for direct pair production of heavy top-quark partners in 4.7 fb(-1) of integrated luminosity from p p collisions at root s = 7 TeV collected by the ATLAS detector at the LHC are reported. Heavy top-quark partners decaying into a top quark and a neutral non-interacting particle are searched for in events with two leptons in the final state. No excess above the Standard Model expectation is observed. Limits are placed on the mass of a supersymmetric scalar top and of a spin-1/2 top-quark partner. A spin-1/2 top-quark partner with a mass between 300 GeV and 480 GeV, decaying to a top quark and a neutral non-interacting particle lighter than 100 GeV, is excluded at 95% confidence level.
关键词DYNAMICAL SYMMETRY-BREAKING ROOT-S=7 TEV HADRON COLLIDERS PP COLLISIONS SUPERGAUGE TRANSFORMATIONS MEASURING MASSES SUPERSYMMETRY MODEL PERFORMANCE PARTICLE
学科领域Physics
DOI10.1007/JHEP11(2012)094
收录类别SCI
语种英语
WOS类目Physics, Particles & Fields
WOS记录号WOS:000312198500029
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213402
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 a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC[J]. JOURNAL OF HIGH ENERGY PHYSICS,2012(11).
APA Atlas Collaboration.(2012).Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC.JOURNAL OF HIGH ENERGY PHYSICS(11).
MLA Atlas Collaboration."Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC".JOURNAL OF HIGH ENERGY PHYSICS .11(2012).
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