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 »
- Authors:
-
- Univ. of Melbourne (Australia), ARC Centre of Excellence for Particle Physics at the Terascale, School of Physics
- 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
- Univ. of Massachusetts, Amherst, MA (United States). Amherst Center for Fundamental Interactions, Dept. of Physics
- 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. https://doi.org/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. https://doi.org/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}
}
Web of Science
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