Higgs production at future e(+)e(-) colliders in the Georgi-Machacek model

doi:10.1007/JHEP02(2018)007

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	Higgs production at future e(+)e(-) colliders in the Georgi-Machacek model
	Li, B 5; Han, ZL ; Liao, Y 2,3
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2018
期号	2 页码:7
关键词	ELECTROWEAK SYMMETRY-BREAKING RADIATIVE-CORRECTIONS MASSLESS PARTICLES BROKEN SYMMETRIES BOSON PRODUCTION STANDARD-MODEL E+E-COLLIDERS GAUGE BOSONS COUPLINGS PHYSICS
ISSN号	1029-8479
DOI	10.1007/JHEP02(2018)007
英文摘要	We 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.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/22970]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Peking Univ, Sch Phys, Beijing 100871, 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.Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China 5.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
推荐引用方式 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.