The super-weak model is a U(1) extension of the Standard Model.
In addition to a mediator $Z'$, a singlet scalar field $\chi$ is added to deal with the meta-stability of the SM vacuum, and right-handed neutrinos are introduced to account for the non-vanishing neutrino masses.
We demonstrate that the lightest right-handed neutrino is a possible dark matter candidate with masses of $\mathcal{O}(10)~\mathrm{MeV}$ via the resonant freeze-out scenario.
The dark matter production is explored and the available parameter space is discussed from the point of view of various experiments and beyond SM aspects.
Sterile neutrino dark matter in the super-weak model
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Pre-published on:
October 28, 2022
Published on:
June 15, 2023
Abstract
DOI: https://doi.org/10.22323/1.414.0290
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.