Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC

	Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC
	Atlas Collaboration
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2012
期号	11
关键词	DYNAMICAL SYMMETRY-BREAKING ROOT-S=7 TEV HADRON COLLIDERS PP COLLISIONS SUPERGAUGE TRANSFORMATIONS MEASURING MASSES SUPERSYMMETRY MODEL PERFORMANCE PARTICLE
通讯作者	Aad, G (reprint author), Univ Adelaide, Sch Chem & Phys, N Terrace Campus, Adelaide, SA 5000, Australia.
英文摘要	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.
学科主题	Physics
类目[WOS]	Physics, Particles & Fields
收录类别	SCI
语种	英语
WOS记录号	WOS:000312198500029
公开日期	2016-02-26
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213402]
专题	高能物理研究所_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 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).