Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 11, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP11(2016)022
Keywords
Beyond Standard Model; Cosmology of Theories beyond the SM; Neutrino Physics
Categories
Funding
- STAG Institute
- Spanish MINECO [FPA2012-31880, SEV-2012-0249]
- European Union [ITN ELUSIVES H2020-MSCA-ITN-2015//674896, RISE INVISIBLESPLUS H2020-MSCA-RISE-2015//690575]
- research grant Theoretical Astroparticle Physics - Ministero dell'Istruzione [2012CPPYP7, PRIN 2012]
- Universita e della Ricerca (MIUR)
- research grant TAsP (Theoretical Astroparticle Physics) - Istituto Nazionale di Fisica Nucleare (INFN)
Ask authors/readers for more resources
We discuss a left-right symmetric extension of the Standard Model in which the three additional right-handed neutrinos play a central role in explaining the baryon asymmetry of the Universe, the dark matter abundance and the ultra energetic signal detected by the IceCube experiment. The energy spectrum and neutrino flux measured by IceCube are ascribed to the decays of the lightest right-handed neutrino N-1, thus fixing its mass and lifetime, while the production of N-1 in the primordial thermal bath occurs via a freeze-in mechanism driven by the additional SU(2)(R) interactions. The constraints imposed by IceCube and the dark matter abundance allow nonetheless the heavier right-handed neutrinos to realize a standard type-I seesaw leptogenesis, with the B-L asymmetry dominantly produced by the next-to-lightest neutrino N-2. Further consequences and predictions of the model are that: the N-1 production implies a specific power-law relation between the reheating temperature of the Universe and the vacuum expectation value of the SU(2)(R) triplet; leptogenesis imposes a lower bound on the reheating temperature of the Universe at 7 x 10(9) GeV. Additionally, the model requires a vanishing absolute neutrino mass scale m(1) similar or equal to 0.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available