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Opening the Higgs portal to lepton-flavoured dark matter

Acaroğlu, Harun 1; Blanke, Monika 1,2; Tabet, Mustafa
1 Institut für Theoretische Teilchenphysik (TTP), Karlsruher Institut für Technologie (KIT)
2 Institut für Astroteilchenphysik (IAP), Karlsruher Institut für Technologie (KIT)

Abstract:

We study a simplified model of lepton-flavoured complex scalar dark matter coupling to right-handed leptons and the Higgs boson. The model is set up in the Dark Minimal Flavour Violation framework. In contrast to previous studies of similar models we consider the most general case and do not a priori constrain the hierarchy of dark matter masses and couplings in any way aside from the chosen parameter ranges. In the first part of the analysis we discuss the impact of Higgs portal interactions and the generalised mass hierarchy on the model’s phenomenology. We find that they render new physics masses around the electroweak scale viable, thus qualifying this model to address the (g − 2)μ puzzle. After reviewing the current situation of the latter, we perform two combined analyses — one in which (g − 2)μ allows for significant new physics effects and one in which it does not. We find that while the latter scenario allows for a larger range of new physics scales, both scenarios are equally viable.


Verlagsausgabe §
DOI: 10.5445/IR/1000164417
Veröffentlicht am 16.11.2023
Originalveröffentlichung
DOI: 10.1007/JHEP11(2023)079
Scopus
Zitationen: 2
Dimensions
Zitationen: 2
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Institut für Theoretische Teilchenphysik (TTP)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 14.11.2023
Sprache Englisch
Identifikator ISSN: 1029-8479
KITopen-ID: 1000164417
HGF-Programm 51.11.01 (POF IV, LK 01) Teilchenphysik
Erschienen in Journal of High Energy Physics
Verlag Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Band 79
Heft 11
Seiten 2-28
Nachgewiesen in Scopus
Web of Science
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