Neutrino Self-Interactions

Abstract

We propose a theory that equips the active neutrinos with interactions among themselves that are at least three orders of magnitude stronger than the weak interaction. We introduce an Abelian gauge group $U(1{)}_x$ with vacuum expectation value $v_x\lesssim \mathcal{O}(100\text{ MeV})$. An asymmetric mass matrix implements the active neutrinos as massless mass eigenstates carrying "effective" charges. To stabilize $v_x$, supersymmetry breaking is mediated via loops to the additional sector with the only exception of xHiggs terms. No Standard Model interaction eigenstate carries $U(1{)}_x$ charge. Thus the dark photon's kinetic mixing is two-loop suppressed.With only simple and generic values of dimensionless parameters, our theory might explain the high-energy neutrino spectrum observed by IceCube including the PeV neutrinos. We comment on the imposing opportunity to incorporate a self-interacting dark matter candidate.

6 pages, 1 figure

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Cited by in corpus (4)

• The Neutrino Puzzle: Anomalies, Interactions, and Cosmological Tensions
• Neutrino Self-Interactions: A White Paper
• Neutrino Self-Interactions and Double Beta Decay
• Sterile Neutrinos and Flavor Ratios in IceCube