Confronting dark fermion with a doubly charged Higgs in the left–right symmetric model

Abstract We consider a fermionic dark matter (DM) in the left–right symmetric framework by introducing a pair of vector-like (VL) doublets in the particle spectrum. The stability of the DM is ensured through an unbroken $$\mathcal {Z}_2$$ Z 2 symmetry. We explore the parameter space of the model com...

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Bibliographic Details
Main Authors: Shyamashish Dey, Purusottam Ghosh, Santosh Kumar Rai
Format: Article
Language:English
Published: SpringerOpen 2022-10-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-022-10778-z
Description
Summary:Abstract We consider a fermionic dark matter (DM) in the left–right symmetric framework by introducing a pair of vector-like (VL) doublets in the particle spectrum. The stability of the DM is ensured through an unbroken $$\mathcal {Z}_2$$ Z 2 symmetry. We explore the parameter space of the model compatible with the observed relic density and direct and indirect detection cross sections. The presence of charged dark fermions opens up an interesting possibility for the doubly charged Higgs signal at LHC and ILC. The signal for the doubly charged scalar decaying into the dark sector is analyzed in multilepton final states for a few representative parameter choices consistent with DM observations.
ISSN:1434-6052