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Title: Exploring extended scalar sectors with di-Higgs signals: A Higgs EFT perspective

Abstract

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, |H|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 |H|6 at tree level only two, quadruplets of hypercharge Y = 3YH and Y = YH, 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 |H|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 |H|6 operator could be constrained, we study the di-Higgs signatures at the future 100 TeV collider and explore future sensitivity of this operator. As a result, projected onto the Higgs potential parameters of the extended scalar sectors, withmore » 30 ab-1 luminosity data we will be able to explore the Higgs potential parameters in all seven models.« less

Authors:
 [1];  [2];  [3];  [4]
  1. Univ. of Melbourne (Australia), ARC Centre of Excellence for Particle Physics at the Terascale, School of Physics
  2. Univ. of Massachusetts, Amherst, MA (United States). Amherst Center for Fundamental Interactions, Dept. of Physics; Univ. of Chicago, IL (United States). Enrico Fermi Inst. and Kavli Inst. for Cosmological Physics; Univ. of California, Riverside, CA (United States). Dept. of Phsyics and Astronomy
  3. Univ. of Massachusetts, Amherst, MA (United States). Amherst Center for Fundamental Interactions, Dept. of Physics
  4. Chinese Academy of Sciences (CAS), Beijing (China). Key Lab. of Theoretical Physics, Inst. of Theoretical Physics; Univ. of Massachusetts, Amherst, MA (United States). Amherst Center for Fundamental Interactions, Dept. of Physics
Publication Date:
Research Org.:
Univ. of Chicago, IL (United States); Univ. of Massachusetts, Amherst, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1503324
Grant/Contract Number:  
SC0009924; SC0011095; FG02-13ER41958
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2018; Journal Issue: 5; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Beyond Standard Model; Effective Field Theories; Higgs Physics

Citation Formats

Corbett, Tyler, Joglekar, Aniket, Li, Hao -Lin, and Yu, Jiang -Hao. Exploring extended scalar sectors with di-Higgs signals: A Higgs EFT perspective. United States: N. p., 2018. Web. doi:10.1007/jhep05(2018)061.
Corbett, Tyler, Joglekar, Aniket, Li, Hao -Lin, & Yu, Jiang -Hao. Exploring extended scalar sectors with di-Higgs signals: A Higgs EFT perspective. United States. doi:10.1007/jhep05(2018)061.
Corbett, Tyler, Joglekar, Aniket, Li, Hao -Lin, and Yu, Jiang -Hao. Wed . "Exploring extended scalar sectors with di-Higgs signals: A Higgs EFT perspective". United States. doi:10.1007/jhep05(2018)061. https://www.osti.gov/servlets/purl/1503324.
@article{osti_1503324,
title = {Exploring extended scalar sectors with di-Higgs signals: A Higgs EFT perspective},
author = {Corbett, Tyler and Joglekar, Aniket and Li, Hao -Lin and Yu, Jiang -Hao},
abstractNote = {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, |H|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 |H|6 at tree level only two, quadruplets of hypercharge Y = 3YH and Y = YH, 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 |H|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 |H|6 operator could be constrained, we study the di-Higgs signatures at the future 100 TeV collider and explore future sensitivity of this operator. As a result, 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.},
doi = {10.1007/jhep05(2018)061},
journal = {Journal of High Energy Physics (Online)},
number = 5,
volume = 2018,
place = {United States},
year = {2018},
month = {5}
}

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Cited by: 11 works
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