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Corbett, T1; Joglekar, A3,4,5; Li, HL; Yu, JH
Exploring extended scalar sectors with di-Higgs signals: a Higgs EFT perspective
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
语种英语
关键词EFFECTIVE-FIELD-THEORY EFFECTIVE LAGRANGIANS SU(2)XU(1) MODELS NEUTRINO MASSES PAIR PRODUCTION DARK-MATTER LHC PHYSICS BOSONS
摘要We consider extended scalar sectors of the Standard Model as ultraviolet complete motivations for studying the effective Higgs self-interaction operators of the Standard Model effective field theory. We investigate all motivated heavy scalar models which generate the dimension-six effective operator, vertical bar H vertical bar(6), at tree level and proceed to identify the full set of tree-level dimension-six operators by integrating out the heavy scalars. Of seven models which generate vertical bar H vertical bar(6) at tree level only two, quadruplets of hypercharge Y = 3Y(H) and Y = Y-H, generate only this operator. Next we perform global fits to constrain relevant Wilson coefficients from the LHC single Higgs measurements as well as the electroweak oblique parameters S and T. We find that the T parameter puts very strong constraints on the Wilson coefficient of the vertical bar H vertical bar(6) operator in the triplet and quadruplet models, while the singlet and doublet models could still have Higgs self-couplings which deviate significantly from the standard model prediction. To determine the extent to which the vertical bar H vertical bar(6) operator could be constrained, we study the di-Higgs signatures at the future 100 TeV collider and explore future sensitivity of this operator. Projected onto the Higgs potential parameters of the extended scalar sectors, with 30 ab(-1) luminosity data we will be able to explore the Higgs potential parameters in all seven models.
2018
ISSN1029-8479
期号5页码:61
学科领域Physics
学科门类Physics, Particles & Fields
DOI10.1007/JHEP05(2018)061
收录类别SCIE
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/22903
专题理论物理所科研产出_SCI论文
作者单位1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
2.Univ Melbourne, Sch Phys, ARC Ctr Excellence Particle Phys Terascale, Melbourne, Vic, Australia
3.Univ Massachusetts, Dept Phys, Amherst Ctr Fundamental Interact, Amherst, MA 01003 USA
4.Univ Chicago, Enrico Fermi Inst, 5640 S Ellis Ave, Chicago, IL 60637 USA
5.Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA
6.Univ Calif Riverside, Dept Phys & Astron, 900 Univ Ave, Riverside, CA 92521 USA
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Corbett, T,Joglekar, A,Li, HL,et al. Exploring extended scalar sectors with di-Higgs signals: a Higgs EFT perspective[J]. JOURNAL OF HIGH ENERGY PHYSICS,2018(5):61.
APA Corbett, T,Joglekar, A,Li, HL,&Yu, JH.(2018).Exploring extended scalar sectors with di-Higgs signals: a Higgs EFT perspective.JOURNAL OF HIGH ENERGY PHYSICS(5),61.
MLA Corbett, T,et al."Exploring extended scalar sectors with di-Higgs signals: a Higgs EFT perspective".JOURNAL OF HIGH ENERGY PHYSICS .5(2018):61.
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