EFFECT FROM THE GLUON-FUSION SIGNAL AND BACKGROUND INTERFERENCE FOR HIGGS DECAYING TO gamma gamma ANALYSIS AT THE LHC

	EFFECT FROM THE GLUON-FUSION SIGNAL AND BACKGROUND INTERFERENCE FOR HIGGS DECAYING TO gamma gamma ANALYSIS AT THE LHC
	Tao JQ(陶军全); Shen YQ(沈玉乔); Fan JW(范嘉伟); Tao, JQ; Shen, YQ; Fan, JW; Xiao, H; Chen, GM; Chen, HS; Bian, JG
刊名	MODERN PHYSICS LETTERS A
	2013
卷号	28 期号:18 页码:1350081
关键词	Interference H -> gamma gamma acceptance criteria
英文摘要	We calculate the destructive interference factors between the Higgs decay H -> gamma gamma produced in gluon-fusion and the Standard Model (SM) continuum gg -> gamma gamma process, as a function of the scattering angle in the center-of-mass frame of the final two photons. The interference factors are studied with the selections based on the acceptance criteria of the ATLAS and CMS H -> gamma gamma searches at the LHC. The result shows that the destructive interference is only at an order of 2.5% for the SM Higgs analysis at the LHC. The factors are almost the same for the same Higgs mass hypothesis but with different proton proton collisions at root s = 7 TeV, 8 TeV, 13 TeV and 14 TeV. The destructive interference is far below the present uncertainty on the total cross-section prediction of Higgs, which is about 15% used at the LHC. A destructive interference factor of -2.5% is suggested to be used in the H -> gamma gamma analysis at the LHC, due to the effect from the interference for this decay channel.
学科主题	Physics
收录类别	SCI
WOS记录号	WOS:000320458400006
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224704]
专题	高能物理研究所_院士高能物理研究所_实验物理中心高能物理研究所_粒子天体物理中心
推荐引用方式 GB/T 7714	Tao JQ,Shen YQ,Fan JW,et al. EFFECT FROM THE GLUON-FUSION SIGNAL AND BACKGROUND INTERFERENCE FOR HIGGS DECAYING TO gamma gamma ANALYSIS AT THE LHC[J]. MODERN PHYSICS LETTERS A,2013,28(18):1350081.
APA	陶军全.,沈玉乔.,范嘉伟.,Tao, JQ.,Shen, YQ.,...&朱世海.(2013).EFFECT FROM THE GLUON-FUSION SIGNAL AND BACKGROUND INTERFERENCE FOR HIGGS DECAYING TO gamma gamma ANALYSIS AT THE LHC.MODERN PHYSICS LETTERS A,28(18),1350081.
MLA	陶军全,et al."EFFECT FROM THE GLUON-FUSION SIGNAL AND BACKGROUND INTERFERENCE FOR HIGGS DECAYING TO gamma gamma ANALYSIS AT THE LHC".MODERN PHYSICS LETTERS A 28.18(2013):1350081.