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arXiv · 1808.01272

Cutoff of IceCube Neutrino Spectrum due to t-channel Resonant Absorption by C$ν$B

Subhendra Mohanty·Ashish Narang·Soumya Sadhukhan
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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$ν$B, which causes a cutoff at 4.5 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 $\mathcal{O}$(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 mediates the annihilation of the dark matter and generates the correct relic density.

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Subhendra Mohanty, Ashish Narang, Soumya Sadhukhan. 2019-03-26. Cutoff of IceCube Neutrino Spectrum due to t-channel Resonant Absorption by C$ν$B. https://doi.org/10.1088/1475-7516%2F2019%2F03%2F041

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