2022/04/19 by A. Kunčinas, O. M. Ogreid, Kunčinas, A. +5
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.48550/arxiv.2204.08872
6 pages, 3 figures, to be published in the Proceedings of DISCRETE 2020-2021: 7th Symposium on Prospects in the Physics of Discrete Symmetries, 29th November - 3rd December 2021, Bergen, Norway; v2: Minor changes
openalex publication_date 2022/04/19 · arxiv created 2022/05/10 · arxiv updated 2022/05/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Models with an extended scalar electroweak sector can have vanishing vacuum expectation values in a basis where an underlying symmetry is imposed. Such extensions are very well motivated. If a symmetry prevents couplings between fermions and additional scalars, such scalars could become viable dark matter candidates if some additional criteria are satisfied. We catalogue S3-symmetric three-Higgs-doublet models, also allowing for softly broken S3-symmetric scalar potential terms, based on whether a specific model could possibly accommodate a dark matter candidate. The variety of the S3-symmetric family models arises due to different possibilities to arrange vacuum expectation values. Such models can have vacua with one or two vanishing vacuum expectation values. In our study we assume that the dark matter candidate is stabilised by the ℤ2 symmetry. The ℤ2 symmetry is a remnant of S3 symmetry which survived spontaneous symmetry breaking, and not superimposed over S3. We explore two models; with an without CP violation. These models have a single dark and two active scalar sectors. The active sectors behave in many aspects like a Type-I two-Higgs-doublet model. The dark matter candidate masses, in two cases, are different from the known (previously studied) models with three scalar doublets. After investigating the models in detail, identifying parameters compatible with both theoretical and experimental constraints, we found that the dark matter candidate mass could be within the range of [52.5, 89]~GeV or [6.5, 44.5]~GeV for a model with CP violation.