Measurement of Higgs boson self-couplings through vector bosons scattering in future muon colliders
Abstract
The 2 → 3 scattering of longitudinal vector bosons (VBS) has been proven to be a complementary channel to measure the Higgs self-couplings in the Standard Model (SM) and the SM effective field theory (SMEFT) at colliders. We perform the first comprehensive study of all main 2 → 3 VBS processes at high-energy muon colliders, especially including background analysis. The main contributing channels turn out to be the scattering of $W^+W^-$ → $W^+W^-h, ZZh$, and $hhh$. We obtain the constraints on c6 and c$$_{\Phi_1}$$ which are the Wilson coefficients of the dimension-6 operators relevant for Higgs self-couplings in the SMEFT. With the center-of-mass energies of 10 TeV and 30 TeV, we find the expected sensitivity to the coefficients c6/Λ2 and c$$_{\Phi_1}$$/Λ2 can reach the level of 0.01 TeV-2 The tightest constraints come from the $hhh$ channel, while the constraints from $WWh$ are also comparable. Our results crucially depend on selecting the longitudinal polarizations for the final W and Z bosons. We then study how the sensitivities change by varying the efficiency of tagging longitudinal polarizations, and find that the significance remains consistently high.
- Authors:
- Publication Date:
- Research Org.:
- Oklahoma State Univ., Stillwater, OK (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); National Natural Science Foundation of China (NSFC); Central Universities; National Key Research and Development Program of China; China Post-doctoral Science Foundation; Korea Institute for Advanced Study
- OSTI Identifier:
- 1859810
- Alternate Identifier(s):
- OSTI ID: 1980035
- Grant/Contract Number:
- SC 0016013; PG075302; SC0016013; 11975129; 12035008; 63196013; 11975130; 12047533; 2017YFA0402200; 2018M641621; 11620330
- Resource Type:
- Published Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Name: Physical Review D Journal Volume: 105 Journal Issue: 5; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; effective field theory; electroweak interaction
Citation Formats
Chen, Junmou, Li, Tong, Lu, Chih-Ting, Wu, Yongcheng, and Yao, Chang-Yuan. Measurement of Higgs boson self-couplings through 2 → 3 vector bosons scattering in future muon colliders. United States: N. p., 2022.
Web. doi:10.1103/PhysRevD.105.053009.
Chen, Junmou, Li, Tong, Lu, Chih-Ting, Wu, Yongcheng, & Yao, Chang-Yuan. Measurement of Higgs boson self-couplings through 2 → 3 vector bosons scattering in future muon colliders. United States. https://doi.org/10.1103/PhysRevD.105.053009
Chen, Junmou, Li, Tong, Lu, Chih-Ting, Wu, Yongcheng, and Yao, Chang-Yuan. Mon .
"Measurement of Higgs boson self-couplings through 2 → 3 vector bosons scattering in future muon colliders". United States. https://doi.org/10.1103/PhysRevD.105.053009.
@article{osti_1859810,
title = {Measurement of Higgs boson self-couplings through 2 → 3 vector bosons scattering in future muon colliders},
author = {Chen, Junmou and Li, Tong and Lu, Chih-Ting and Wu, Yongcheng and Yao, Chang-Yuan},
abstractNote = {The 2 → 3 scattering of longitudinal vector bosons (VBS) has been proven to be a complementary channel to measure the Higgs self-couplings in the Standard Model (SM) and the SM effective field theory (SMEFT) at colliders. We perform the first comprehensive study of all main 2 → 3 VBS processes at high-energy muon colliders, especially including background analysis. The main contributing channels turn out to be the scattering of $W^+W^-$ → $W^+W^-h, ZZh$, and $hhh$. We obtain the constraints on c6 and c$_{\Phi_1}$ which are the Wilson coefficients of the dimension-6 operators relevant for Higgs self-couplings in the SMEFT. With the center-of-mass energies of 10 TeV and 30 TeV, we find the expected sensitivity to the coefficients c6/Λ2 and c$_{\Phi_1}$/Λ2 can reach the level of 0.01 TeV-2 The tightest constraints come from the $hhh$ channel, while the constraints from $WWh$ are also comparable. Our results crucially depend on selecting the longitudinal polarizations for the final W and Z bosons. We then study how the sensitivities change by varying the efficiency of tagging longitudinal polarizations, and find that the significance remains consistently high.},
doi = {10.1103/PhysRevD.105.053009},
journal = {Physical Review D},
number = 5,
volume = 105,
place = {United States},
year = {Mon Mar 28 00:00:00 EDT 2022},
month = {Mon Mar 28 00:00:00 EDT 2022}
}
https://doi.org/10.1103/PhysRevD.105.053009
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