IceCube a peut-être déjà détecté indirectement des neutrinos droits d'énergie voisine d'1 PeV
The Standard Model of particle physics fails to explain the important pieces in the standard cosmology, such as inﬂation, baryogenesis, and dark matter of the Universe. We consider the possibility that the sector to generate small neutrino masses is responsible for all of them; the inﬂation is driven by the Higgs ﬁeld to break B −L gauge symmetry which provides the Majorana masses to the right- handed neutrinos, and the reheating process by the decay of the B−L Higgs boson supplies the second lightest right-handed neutrinos whose CP violating decays produce B−L asymmetry, à la, leptogenesis. The lightest right-handed neutrinos are also produced by the reheating process, and remain today as the dark matter of the Universe. In the minimal model of the inﬂaton potential, one can set the parameter of the potential by the data from CMB observations including the BICEP2 and the Planck experiments. In such a scenario, the mass of the dark matter particle is predicted to be of the order of PeV. We ﬁnd that the decay of the PeV right-handed neutrinos can explain the high-energy neutrino ﬂux observed at the IceCube experiments if the lifetime is of the order of 1028 s.
(Submitted on 30 Apr 2014 (v1), last revised 8 Jul 2014 (this version, v2))
* Bert et Ernie, les Deux Neutrinos les Plus Energétiques du Monde
** A growing astrophysical neutrino signal in IceCube now features a 2-PeV neutrino
*** Est-ce que le boson de Higgs a un grand frère (le big broson)?
Remarque en guise d'avertissement