Short Wavelength Oscillations with Right-Handed Neutrinos

TL;DR

This paper explores how right-handed neutrinos with eV-scale masses can cause new oscillation patterns, potentially explaining anomalies observed in neutrino experiments like MiniBooNE, reactors, and Gallium detectors.

Contribution

It introduces a framework for neutrino oscillations involving right-handed neutrinos with eV masses, revealing new interference effects and structures.

Findings

New oscillation structures due to right-handed neutrinos.

Potential explanation for experimental anomalies.

Classification of observed neutrino anomalies.

Abstract

The standard model is extended with three right-handed, singlet neutrinos with general couplings permitted by the $SU(2)_{L}\times U(1)$ symmetry. The traditional oscillations are accounted for, as usually, by three left-handed neutrinos. The article investigates new structures that develop when the masses of the right-handed states are in the eV range. The new states interfere and oscillate with the standard light neutrinos. New structures appear when the detectors average over short wavelengths. I use these results to present and classify properties of the observed anomalies in the MiniBooNe, reactor and Gallium-detector experiments.