Search for top quark decays t -> q H with H -> gamma gamma using the ATLAS detector
ATLAS collaboration
刊名JOURNAL OF HIGH ENERGY PHYSICS
2014
期号6
关键词CHANGING NEUTRAL CURRENTS MASSLESS PARTICLES BROKEN SYMMETRIES STANDARD MODEL DOUBLET MODELS EP COLLISIONS HIGGS-BOSON LHC HERA COUPLINGS
学科分类Physics
DOI10.1007/JHEP06(2014)008
通讯作者Aad, G (reprint author), Aix Marseille Univ, CPPM, Marseille, France.
英文摘要A search is performed for flavour-changing neutral currents in the decay of a top quark to an up-type (c, u) quark and a Higgs boson, where the Higgs boson decays to two photons. The proton-proton collision data set used corresponds to 4.7 fb(-1) at root s = 7TeV and 20.3 fb(-1) at root s = 8TeV collected by the ATLAS experiment at the LHC. Top quark pair events are searched for in which one top quark decays to qH and the other decays to bW. Both the hadronic and the leptonic decay modes of the W boson are used. No significant signal is observed and an upper limit is set on the t -> qH branching ratio of 0.79% at the 95% confidence level. The corresponding limit on the tqH coupling combination root lambda(2)(tcH) + root lambda(2)(tuH) is 0.17.
类目[WOS]Physics, Particles & Fields
收录类别SCI
语种英语
WOS记录号WOS:000337167700001
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被引频次:25[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/311005/213723
专题中国科学院高能物理研究所_实验物理中心_期刊论文
作者单位中国科学院高能物理研究所
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ATLAS collaboration. Search for top quark decays t -> q H with H -> gamma gamma using the ATLAS detector[J]. JOURNAL OF HIGH ENERGY PHYSICS,2014(6).
APA ATLAS collaboration.(2014).Search for top quark decays t -> q H with H -> gamma gamma using the ATLAS detector.JOURNAL OF HIGH ENERGY PHYSICS(6).
MLA ATLAS collaboration."Search for top quark decays t -> q H with H -> gamma gamma using the ATLAS detector".JOURNAL OF HIGH ENERGY PHYSICS .6(2014).
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