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Han, XF; Wang, L; Yang, JM; Wang, L (reprint author), Yantai Univ, Dept Phys, Yantai 264005, Peoples R China.
Higgs pair signal enhanced in the 2HDM with two degenerate 125 GeV Higgs bosons
Source PublicationMODERN PHYSICS LETTERS A
Language英语
KeywordTwo-higgs-doublet Model Higgs Lhc
AbstractWe discuss a scenario of the type-II two-Higgs- doublet model (2HDM) in which the b (b) over bar gamma gamma rate of the Higgs pair production is enhanced due to the two nearly degenerate 125 GeV Higgs bosons ( h, H). Considering various theoretical and experimental constraints, we figure out the allowed ranges of the trilinear couplings of these two Higgs bosons and calculate the signal rate of b (b) over bar gamma gamma from the productions of Higgs pairs (hh, hH, HH) at the large hadron collider (LHC). We find that in the allowed parameter space some trilinear Higgs couplings can be larger than the Standard Model (SM) value by an order and the production rate of b _ b.. can be greatly enhanced. We also consider a "decoupling" benchmark point where the light CP-even Higgs has a SM-like cubic self-coupling while other trilinear couplings are very small. With a detailed simulation on the b (b) over bar gamma gamma signal and backgrounds, we find that in such a "decoupling" scenario the hh and hH channels can jointly enhance the statistical significance to 5 sigma at 14 TeV LHC with an integrated luminosity of 3000 fb(-1).
2016
Volume31Issue:31Pages:1650178
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1142/S0217732316501789
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China [11575152, 11275245, 10821504, 11135003] ; National Natural Science Foundation of China [11575152, 11275245, 10821504, 11135003] ; National Natural Science Foundation of China [11575152, 11275245, 10821504, 11135003] ; National Natural Science Foundation of China [11575152, 11275245, 10821504, 11135003] ; Spanish Government ; Spanish Government ; Spanish Government ; Spanish Government ; ERDF funds from the EU Commission [FPA2014-53631-C2-1-P, SEV-2014-0398, FPA2011-23778] ; ERDF funds from the EU Commission [FPA2014-53631-C2-1-P, SEV-2014-0398, FPA2011-23778] ; ERDF funds from the EU Commission [FPA2014-53631-C2-1-P, SEV-2014-0398, FPA2011-23778] ; ERDF funds from the EU Commission [FPA2014-53631-C2-1-P, SEV-2014-0398, FPA2011-23778]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21509
CollectionSCI期刊论文
Corresponding AuthorWang, L (reprint author), Yantai Univ, Dept Phys, Yantai 264005, Peoples R China.
Recommended Citation
GB/T 7714
Han, XF,Wang, L,Yang, JM,et al. Higgs pair signal enhanced in the 2HDM with two degenerate 125 GeV Higgs bosons[J]. MODERN PHYSICS LETTERS A,2016,31(31):1650178.
APA Han, XF,Wang, L,Yang, JM,&Wang, L .(2016).Higgs pair signal enhanced in the 2HDM with two degenerate 125 GeV Higgs bosons.MODERN PHYSICS LETTERS A,31(31),1650178.
MLA Han, XF,et al."Higgs pair signal enhanced in the 2HDM with two degenerate 125 GeV Higgs bosons".MODERN PHYSICS LETTERS A 31.31(2016):1650178.
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