CERN Accelerating science

Article
Report number arXiv:2201.00600 ; IPPP/22/02
Title Higgs-Sector Predictions from Maximally Symmetric multi-Higgs Doublet Models
Author(s) Pilaftsis, Apostolos (Manchester U. ; CERN) ; Darvishi, Neda (Michigan State U. ; Beijing, Inst. Theor. Phys.) ; Masouminia, M.R. (Durham U., IPPP)
Publication 2022-05-10
Imprint 2022-01-03
Number of pages 10
Note DISCRETE 2020-2021 Proceeding, 10 pages and 6 figures
In: PoS DISCRETE2020-2021 (2022) 023
In: 7th Symposium on Prospects in the Physics of Discrete Symmetries (DISCRETE 2020-2021), Bergen, Norway, 29 Nov - 3 Dec 2021, pp.023
DOI 10.22323/1.405.0023
Subject category hep-ph ; Particle Physics - Phenomenology
Abstract Maximally Symmetric $n$-Higgs Doublet Models (MS-$n$HDMs)define very economic settings that enable sharp Higgs-sector predictions beyond the Standard Model (SM) potentially testable at high-energy colliders. The scalar potential of a MS-$n$HDM obeys an $\mathrm{Sp(2}n)$ symmetry, which is softly broken by bilinear scalar masses and explicitly by hypercharge and Yukawa couplings through renormalisation-group effects. The $\mathrm{Sp(2}n)$ also ensures natural SM alignment and allows for quartic coupling unification up to the Planck scale. As typical examples, we consider maximally symmetric realisations of the Type-II 2HDM and the Type-V 3HDM. We show how in terms of a few input parameters, definite predictions for the entire scalar mass spectrum of the MS-2HDM and MS-3HDM are obtained, including the SM-like Higgs-boson couplings to the gauge bosons and fermions.
Copyright/License preprint: (License: CC0 1.0)
publication: © 2022-2024 The author(s) (License: CC-BY-NC-ND-4.0)



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