ITP OpenIR  > SCI期刊论文
Li, Hao-Lin; Xu, Ling-Xiao; Yu, Jiang-Hao; Zhu, Shou-hua
EFTs meet Higgs nonlinearity, compositeness and (neutral) naturalness
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
Language英语
KeywordELECTROWEAK SYMMETRY-BREAKING BOSON PRODUCTION FLAVOR NAMBU MODEL
AbstractComposite Higgs and neutral-naturalness models are popular scenarios in which the Higgs boson is a pseudo Nambu-Goldstone boson (PNGB), and naturalness problem is addressed by composite top partners. Since the standard model effective field theory (SMEFT) with dimension-six operators cannot fully retain the information of Higgs nonlinearity due to its PNGB nature, we systematically construct low energy Lagrangian in which the information of compositeness and Higgs nonlinearity are encoded in the form factors, the two-point functions in the top sector. We classify naturalness conditions in various scenarios, and first present these form factors in composite neutral naturalness models. After extracting out Higgs effective couplings from these form factors and performing the global fit, we find the value of Higgs top coupling could still be larger than the standard model one if the top quark is embedded in the higher dimensional representations. Also we find the impact of Higgs nonlinearity is enhanced by the large mass splitting between composite states. In this case, pattern of the correlation between the tth and tthh couplings is quite different for the linear and nonlinear Higgs descriptions.
2019
ISSN1029-8479
Issue9Pages:10
Cooperation Status国内
Subject AreaPhysics
MOST Discipline CataloguePhysics, Particles & Fields
DOI10.1007/JHEP09(2019)010
Indexed BySCIE
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/27235
CollectionSCI期刊论文
Affiliation1.[Li, Hao-Lin
2.Chinese Acad Sci, CAS Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China
3.[Xu, Ling-Xiao
4.Peking Univ, Dept Phys, Beijing 100871, Peoples R China
5.Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
6.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
7.Collaborat Innovat Ctr Quantum Matter, Beijing, Peoples R China
8.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Li, Hao-Lin,Xu, Ling-Xiao,Yu, Jiang-Hao,et al. EFTs meet Higgs nonlinearity, compositeness and (neutral) naturalness[J]. JOURNAL OF HIGH ENERGY PHYSICS,2019(9):10.
APA Li, Hao-Lin,Xu, Ling-Xiao,Yu, Jiang-Hao,&Zhu, Shou-hua.(2019).EFTs meet Higgs nonlinearity, compositeness and (neutral) naturalness.JOURNAL OF HIGH ENERGY PHYSICS(9),10.
MLA Li, Hao-Lin,et al."EFTs meet Higgs nonlinearity, compositeness and (neutral) naturalness".JOURNAL OF HIGH ENERGY PHYSICS .9(2019):10.
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