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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; Chen, Y; Liang, S; Meng, XW; Muhammad, A; Sarmadmasood, S; Wang, Z; Zhu, SH;; Xiao H(肖虹); Chen GM(陈国明); Chen HS(陈和生); Bian JG(卞建国); 陈 晔; Liang S(梁松); Meng XW(孟祥伟); Wang Z(王征); Zhu SH(朱世海)
2013
Source PublicationMODERN PHYSICS LETTERS A
ISSN0217-7323
EISSN1793-6632
Volume28Issue:18Pages:1350081
AbstractWe 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.
KeywordInterference H -> gamma gamma acceptance criteria
Subject AreaPhysics
DOI10.1142/S0217732313500818
Indexed BySCI
Language英语
WOS IDWOS:000320458400006
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/224704
Collection院士
实验物理中心
粒子天体物理中心
核技术应用研究中心
Recommended Citation
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.
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