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Searching heavier Higgs boson via di-Higgs production at LHC Run-2

文献类型:期刊论文

作者Lu, Lan-Chun1,2; Du, Chun3; Fang, Yaquan3; He, Hong-Jian1,2,4,5; Zhang, Huijun6
刊名PHYSICS LETTERS B
出版日期2016-04-10
卷号755页码:509-522
ISSN号0370-2693
关键词LHC New Higgs boson Beyond standard model searches
DOI10.1016/j.physletb.2016.02.026
英文摘要The discovery of a light Higgs particle h(0) (125 GeV) opens up new prospect for searching heavier Higgs boson(s) at the LHC Run-2, which will unambiguously point to new physics beyond the standard model (SM). We study the detection of a heavier neutral Higgs boson H-0 via di-Higgs production channel at the LHC (14TeV), H-0 -> h(0)h(0) -> WW*gamma gamma. This directly probes the Hhhcubic Higgs interaction, which exists in most extensions of the SM Higgs sector. For the decay products of final states WW*, we include both pure leptonic mode WW* -> l (nu) over barl (nu) over bar and semi-leptonic mode WW* -> q (q) over bar 'l nu. We analyze signals and backgrounds by performing fast detector simulation for the full process pp -> H -> hh -> WW*gamma gamma -> l (nu) over bar(l) over bar gamma gamma and pp -> H -> hh -> WW*gamma gamma -> l nu q (q) over bar'gamma gamma, over the mass range M-H = 250-600 GeV. For generic two-Higgs-doublet models (2HDM), we present the discovery reach of the heavier Higgs boson at the LHC Run-2, and compare it with the current Higgs global fit of the 2HDM parameter space. (C) 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license.
WOS关键词ELECTROWEAK SYMMETRY-BREAKING ; STANDARD MODEL ; VIOLATION ; ANATOMY
资助项目National NSF of China[11275101] ; National NSF of China[11135003] ; National Basic Research Program[2010CB833000] ; Thousand Talents Program[Y25155AOU1] ; CAS Center for Excellence in Particle Physics (CCEPP) ; IAS Princeton ; Harvard University
WOS研究方向Astronomy & Astrophysics ; Physics
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000373568100078
资助机构National NSF of China ; National Basic Research Program ; Thousand Talents Program ; CAS Center for Excellence in Particle Physics (CCEPP) ; IAS Princeton ; Harvard University
源URL[http://119.78.100.186/handle/113462/42756]  
专题中国科学院近代物理研究所
通讯作者Fang, Yaquan; He, Hong-Jian
作者单位1.Tsinghua Univ, Inst Modern Phys, Beijing 100084, Peoples R China
2.Tsinghua Univ, Ctr High Energy Phys, Beijing 100084, Peoples R China
3.Inst High Energy Phys, Beijing 100049, Peoples R China
4.Inst Adv Study, Olden Lane, Princeton, NJ 08540 USA
5.Harvard Univ, 1 Oxford St, Cambridge, MA 02138 USA
6.Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714
Lu, Lan-Chun,Du, Chun,Fang, Yaquan,et al. Searching heavier Higgs boson via di-Higgs production at LHC Run-2[J]. PHYSICS LETTERS B,2016,755:509-522.
APA Lu, Lan-Chun,Du, Chun,Fang, Yaquan,He, Hong-Jian,&Zhang, Huijun.(2016).Searching heavier Higgs boson via di-Higgs production at LHC Run-2.PHYSICS LETTERS B,755,509-522.
MLA Lu, Lan-Chun,et al."Searching heavier Higgs boson via di-Higgs production at LHC Run-2".PHYSICS LETTERS B 755(2016):509-522.

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来源:近代物理研究所

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