Gravitational waves and dark matter from classical scale invariance

Abstract

In this paper we consider a minimal classically conformal U(1) model of fermionic dark matter. We calculate the one loop effective potential which generates the mass scale quantum mechanically via dimensional transmutaion in the spirit of Gildener and Weinberg, and examine the effects of the new dark sector on the Standard Model Higgs as well as how the dark fermions receive a mass and can produce the observed relic abundance. We then consider constraints on the model coming from collider and direct detection experiments before calculating the thermal effects on the potential in the early universe. We examine the nature and conditions for a strongly first order phase transition in our model and calculate the associated gravitational wave signal and compare to the sensitivities of current and proposed experiments.

v2: Minor changes, matches version accepted for publication in PRD

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Cited by in corpus (6)

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• Prospecting bipartite Dark Matter through Gravitational Waves
• Gravitational wave signatures of first-order phase transition in two-component dark matter model
• A mechanism to generate varying speed of light via Higgs-dilaton coupling: Theory and cosmological applications
• Probing Leptophobic Dark Sectors via Gravitational Wave Signatures