paper

Dipole-Coupled Neutrissimo Explanations of the MiniBooNE Excess Including Constraints from MINERvA Data

arXiv:2206.07100 · doi:10.1103/PhysRevD.107.055009

Abstract

We revisit models of heavy neutral leptons (neutrissimos) with transition magnetic moments as explanations of the excess of electron-like events at MiniBooNE. We perform a detailed Monte Carlo-based analysis to re-examine the preferred regions in the model parameter space to explain MiniBooNE, considering also potential contributions from oscillations due to an eV-scale sterile neutrino. We then derive robust constraints on the model using neutrino-electron elastic scattering data from MINERvA. We find that MINERvA rules out a large region of parameter space, but allowed solutions exist at the confidence level. A dedicated MINERvA analysis would likely be able to probe the entire region of preference of MiniBooNE in this model.

arXiv comment14 pages

References in corpus (55)

Cited by in corpus (8)