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Li, B4; Han, ZL; Liao, Y2,3
Higgs production at future e(+)e(-) colliders in the Georgi-Machacek model
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
Language英语
KeywordELECTROWEAK SYMMETRY-BREAKING RADIATIVE-CORRECTIONS MASSLESS PARTICLES BROKEN SYMMETRIES BOSON PRODUCTION STANDARD-MODEL E+E-COLLIDERS GAUGE BOSONS COUPLINGS PHYSICS
AbstractWe study how the dominant single and double SM-like Higgs (h) production at future e(+)e(-) colliders is modified in the Georgi-Machacek (GM) model. On imposing theoretical, indirect and direct constraints, significant deviations of h-couplings from their SM values are still possible; for instance, the Higgs-gauge coupling can be corrected by a factor kappa(hVV) is an element of [0.93; 1.15] in the allowed parameter space. For the Higgs-strahlung e(+)e(-) -> hZ and vector boson fusion processes e(+)e(-) -> h nu(nu) over bar; he(+)e(-), the cross section could increase by 32% or decrease by 13%. In the case of associated production with a top quark pair e(+)e(-) -> ht (t) over bar, the cross section can be enhanced up to several times when the custodial triplet scalar H-3(0) is resonantly produced. In the meanwhile, the double Higgs production e(+)e(-) -> hhZ (hh nu(nu) over bar) can be maximally enhanced by one order of magnitude at the resonant H-1,3(0) production. We also include exclusion limits expected from future LHC runs at higher energy and luminosity and discuss their further constraints on the relevant model parameters. We find that the GM model can result in likely measurable deviations of Higgs production from the SM at future e(+)e(-) colliders.
2018
ISSN1029-8479
Issue2Pages:7
Subject AreaPhysics
MOST Discipline CataloguePhysics, Particles & Fields
DOI10.1007/JHEP02(2018)007
Indexed BySCIE
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Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22970
CollectionSCI期刊论文
Affiliation1.Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China
2.Univ Jinan, Sch Phys & Technol, Jinan 250022, Shandong, Peoples R China
3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
4.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
5.Peking Univ, Sch Phys, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Li, B,Han, ZL,Liao, Y. Higgs production at future e(+)e(-) colliders in the Georgi-Machacek model[J]. JOURNAL OF HIGH ENERGY PHYSICS,2018(2):7.
APA Li, B,Han, ZL,&Liao, Y.(2018).Higgs production at future e(+)e(-) colliders in the Georgi-Machacek model.JOURNAL OF HIGH ENERGY PHYSICS(2),7.
MLA Li, B,et al."Higgs production at future e(+)e(-) colliders in the Georgi-Machacek model".JOURNAL OF HIGH ENERGY PHYSICS .2(2018):7.
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