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

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 t...

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Bibliographic Details
Published inarXiv.org
Main Authors de Blas, Jorge, Eberhardt, Otto, Krause, Claudius
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 16.07.2018
Subjects
Bayesian analysis
Coefficients
Couplings
Dependence
Higgs bosons
Physics - High Energy Physics - Experiment
Physics - High Energy Physics - Phenomenology
Statistical analysis
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Summary: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.
Bibliography:IFIC/17-48; FTUV/18-0305; FERMILAB-PUB-18-058-T
ISSN:2331-8422
DOI:10.48550/arxiv.1803.00939