Extending global fits of 4D Composite Higgs Models with partially composite leptons
dc.contributor.author | Carragher, E. | |
dc.contributor.author | Goh, K. | |
dc.contributor.author | Su, W. | |
dc.contributor.author | White, M. | |
dc.contributor.author | Williams, A.G. | |
dc.date.issued | 2024 | |
dc.description.abstract | We perform the first convergent Bayesian global fits of 4D Composite Higgs Models with partially-composite third generation quarks and leptons based on the minimal SO(5) → SO(4) symmetry breaking pattern. We consider two models with the τ lepton and its associated neutrino in different representations of SO(5). Fitting each model with a wide array of experimental constraints allows us to analyse the Bayesian evidence and currently-observed fine-tuning of each model by calculating the Kullback-Leibler divergence between their respective priors and posteriors. Notably both models are found to be capable of satisfying all constraints simultaneously at the 3σ level at scales of < 5TeV. From a Bayesian viewpoint of naturalness the model with leptons in the 14 and 10 representations is preferred over those in the 5 representation due to its lower fine-tuning. Finally, we consider the experimental signatures for the preferred parameters in these models, including lepton partner decay signatures and gluon-fusion produced Higgs signal strengths, and discuss their potential phenomenology at future high-luminosity LHC runs. | |
dc.description.statementofresponsibility | Ethan Carragher, Kenn Goh, Wei Su, Martin White and Anthony G. Williams | |
dc.identifier.citation | The Journal of High Energy Physics, 2024; 2024(8):185-0-185-47 | |
dc.identifier.doi | 10.1007/jhep08(2024)185 | |
dc.identifier.issn | 1029-8479 | |
dc.identifier.issn | 1029-8479 | |
dc.identifier.orcid | Goh, K. [0000-0002-5991-2704] | |
dc.identifier.orcid | White, M. [0000-0001-5474-4580] | |
dc.identifier.orcid | Williams, A.G. [0000-0002-1472-1592] | |
dc.identifier.uri | https://hdl.handle.net/2440/143693 | |
dc.language.iso | en | |
dc.publisher | Springer Science and Business Media LLC | |
dc.relation.grant | http://purl.org/au-research/grants/arc/CE200100008 | |
dc.rights | Open Access, © The Authors. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. | |
dc.source.uri | http://dx.doi.org/10.1007/jhep08(2024)185 | |
dc.subject | Compositeness; Hierarchy Problem; Specific BSM Phenomenology | |
dc.title | Extending global fits of 4D Composite Higgs Models with partially composite leptons | |
dc.type | Journal article | |
pubs.publication-status | Published |
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