Gespeichert in:
| Hauptverfasser: | , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2023
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| Schlagworte: | |
| Online-Zugang: | https://arxiv.org/abs/2312.15053 |
| Tags: |
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Inhaltsangabe:
- We analyse a model that connects the neutrino sector and the dark sector of the universe via a mediator $Φ$, stabilised by a discrete $Z_4$ symmetry that breaks to a remnant $Z_2$ upon $Φ$ acquiring a non-zero vacuum expectation value ($v_ϕ$). The model accounts for the observed baryon asymmetry of the universe via additional contributions to the canonical Type-I leptogenesis. The $Z_4$ symmetry breaking scale ($v_ϕ$) in the model not only establishes a connection between the neutrino sector and the dark sector, but could also lead to gravitational wave signals that are within the reach of current and future experimental sensitivities.