PoS - Proceedings of Science
Volume 431 - 8th Symposium on Prospects in the Physics of Discrete Symmetries (DISCRETE2022) - Astroparticle Physics and cosmology
Two-component vector WIMP – fermion FIMP dark matter model with an extended seesaw mechanism
F. Costa
Full text: pdf
Pre-published on: January 31, 2024
Published on: February 01, 2024
Abstract
The document discusses a proposed extension to the Standard Model that aims to explain the presence of neutrino masses and the existence of dark matter. The model includes two potential candidates for dark matter, a vector WIMP and a fermion FIMP, and their combined presence account for the total amount of observed dark matter. The article examines the various ways in which dark matter could be produced within this model and explores the connections between the dark matter and neutrino sectors. It also examines various constraints from existing and future experiments. Additionally, the model includes a scalar field that can play a role in a first-order phase transition in the early universe, and the article looks at the potential for the production of gravitational waves as a result of this phase transition and their detectability. The article also assesses the possibility for this phase transition to be strong enough to drive the electroweak baryogenesis.
DOI: https://doi.org/10.22323/1.431.0020
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