Clockworking FIMPs

Abstract

We study freeze-in dark matter production in models that rely on the Clockwork mechanism to suppress the dark matter couplings to the visible sector. We construct viable scalar and fermionic dark matter models within this Clockwork FIMP scenario, with several subtleties that need to be taken into account revealed in the model-building process. We also provide analytic, semi-analytic and numerical results for the diagonalization of Clockwork-type mass matrices and briefly discuss the LHC phenomenology of the corresponding scenarios.

arXiv comment27 pages, 3 figures. Some typos in the appendices corrected. Accepted for JHEP

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• A Two-Component Dark Matter Model and its Associated Gravitational Waves
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• Dark Matter and Leptogenesis from Gravitational Production
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• Clockwork origin of neutrino mixings
• Lectures on Physics Beyond the Standard Model
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• A natural theory of dark energy
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• Search for a photon peak from keV-scale dark matter annihilation with NuSTAR: Constraints on $⟨\sigma v⟩$ after 11 years of observations
• A closed clockwork theory: ${\mathbb{Z}}_2$ parity and more