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Title: Current and future constraints on Higgs couplings in the nonlinear Effective Theory

Abstract

Here, we perform a Bayesian statistical analysis of the constraints on the nonlinear Effective Theory given by the Higgs electroweak chiral Lagrangian. We obtain bounds on the effective coefficients entering in Higgs observables at the leading order, using all available Higgs-boson signal strengths from the LHC runs 1 and 2. Using a prior dependence study of the solutions, we discuss the results within the context of natural-sized Wilson coefficients. We further study the expected sensitivities to the different Wilson coefficients at various possible future colliders. Finally, we interpret our results in terms of some minimal composite Higgs models.

Authors:
ORCiD logo [1];  [2]; ORCiD logo [3]
  1. Univ. di Padova, Padova (Italy); INFN, Padova (Italy)
  2. Univ. de Valencia-CSIC, Valencia (Spain)
  3. Univ. de Valencia-CSIC, Valencia (Spain); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1437388
Report Number(s):
arXiv:1803.00939; IFIC-17-48; FTUV-18-0305; FERMILAB-PUB-18-058-T; IFIC/17-48; FTUV/18-0305
Journal ID: ISSN 1029-8479; 1658469; TRN: US1900317
Grant/Contract Number:  
AC02-07CH11359
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: 7; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Chiral Lagrangians; Effective Field Theories; Higgs Physics; Beyond Standard Model

Citation Formats

de Blas, Jorge, Eberhardt, Otto, and Krause, Claudius. Current and future constraints on Higgs couplings in the nonlinear Effective Theory. United States: N. p., 2018. Web. doi:10.1007/JHEP07(2018)048.
de Blas, Jorge, Eberhardt, Otto, & Krause, Claudius. Current and future constraints on Higgs couplings in the nonlinear Effective Theory. United States. doi:10.1007/JHEP07(2018)048.
de Blas, Jorge, Eberhardt, Otto, and Krause, Claudius. Mon . "Current and future constraints on Higgs couplings in the nonlinear Effective Theory". United States. doi:10.1007/JHEP07(2018)048. https://www.osti.gov/servlets/purl/1437388.
@article{osti_1437388,
title = {Current and future constraints on Higgs couplings in the nonlinear Effective Theory},
author = {de Blas, Jorge and Eberhardt, Otto and Krause, Claudius},
abstractNote = {Here, we perform a Bayesian statistical analysis of the constraints on the nonlinear Effective Theory given by the Higgs electroweak chiral Lagrangian. We obtain bounds on the effective coefficients entering in Higgs observables at the leading order, using all available Higgs-boson signal strengths from the LHC runs 1 and 2. Using a prior dependence study of the solutions, we discuss the results within the context of natural-sized Wilson coefficients. We further study the expected sensitivities to the different Wilson coefficients at various possible future colliders. Finally, we interpret our results in terms of some minimal composite Higgs models.},
doi = {10.1007/JHEP07(2018)048},
journal = {Journal of High Energy Physics (Online)},
number = 7,
volume = 2018,
place = {United States},
year = {2018},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 13 works
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Figures / Tables:

Figure 1 Figure 1: Schematic contributions to the $h$ → $γγ$ amplitude. Black dots denote vertices from $\mathcal{L}$LO, black squares from $\mathcal{L}$NLO. All of these contributions introduce deviations from the SM at 𝒪(ξ/16π2).

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