A revisit to scalar dark matter with radiative corrections

Abstract

Extended Higgs sectors have been studied extensively in context of dark matter phenomenology in tandem with other aspects. In this study, we compute radiative corrections to the dark matter-Higgs portal coupling, which is in fact a common feature of all scalar dark matter models irrespective of the hypercharge of the multiplet from which the dark matter candidate emerges. We select the popular inert doublet model (IDM) as a prototype in order to demonstrate the impact of the next-to-leading order corrections, thereby probing the plausibility of extending the allowed parameter space through quantum effects. Given that the tree level portal coupling is a \emph{prima facie} free parameter, the percentage change from loop effects can be large. This modifies the dark matter phenomenology at a quantitative level. It also encourages one to include loop corrections to all other interactions that are deemed relevant in this context.

v3: 26 pages, 9 figures and 1 table; some typos fixed; matches published version

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Cited by in corpus (10)

• Relic density of Dark Matter in the Inert Doublet Model beyond Leading Order. I) The Heavy Mass Case
• Probing the inert doublet model using jet substructure with a multivariate analysis
• Mono-Higgs Signature in the Scotogenic Model with Majorana Dark Matter
• Neutral Higgs decays $H\to Z\gamma ,\gamma \gamma$ in 3-3-1 models
• Relic density of dark matter in the inert doublet model beyond leading order for the low mass region: 1. Renormalisation and constraints
• Phenomenology of the Inert Doublet Model with a global U(1) symmetry
• Phenomenological analysis of multi-pseudoscalar mediated dark matter models
• Probing Extended Scalar Sectors with Precision $e^{+}{e}^{-}\to Zh$ and Higgs Diphoton Studies
• Full one-loop radiative corrections to $e^{+}{e}^{-}\to H^{+}{H}^{-}$ in the inert doublet model
• One-loop QED and Weak Corrections to $\gamma \gamma \to H^{\pm }{H}^{\mp }$ in the Inert Doublet Model