Cutoff of IceCube Neutrino spectrum due to t-channel resonant absorption by C?B
Source
arXiv
ISSN
2331-8422
Date Issued
2018-08-01
Author(s)
Mohanty, Subhendra
Narang, Ashish
Sadhukhan, Soumya
Abstract
The non-observation of neutrinos by the IceCube at the Glashow resonance energy of 6.3 PeV has been a long standing unresolved issue. In this paper we propose a t-channel neutrino absorption by the C?B, which causes a cutoff at 2.5 PeV neutrino energy, to explain the IceCube observations. We present a neutrinophilic 2HDM where the neutrino masses are generated by a low scale seesaw mechanism. A-O(10) MeV scalar mediates the interactions between left and right handed neutrinos and generates the t-channel diagram used for explaining the absence of Glashow resonance. The same scalar mediate the annihilation of the dark matter and generates the correct relic density.
Subjects
High Energy Physics
Phenomenology
