New MiniBooNE excess interpretation using Pseudo-Hermitian neutrino oscillation

Abstract

The excess observed in the MiniBooNE experiment data has been confirmed by several data releases and analyses. Several attempts to explain this excess have been proposed in the literature, using approaches ranging from experimental errors to new neutrino theories. None of these attempts seem to fully account for the observed excess. In this paper, we present a new approach based on a non-standard two-flavor oscillation theory. In recent years, there has been increasing interest in pseudo-Hermitian Hamiltonian theories and their impact on various quantum phenomena. Neutrino oscillation is modified using the approach of PT-pseudo-Hermitian oscillation, which introduces a zero-distance effect and an asymmetry in the appearance probability of specific flavors. According to this study, such effects can account for the excess and provide a better fit to the data than the current best fit within the standard oscillation framework. We present an analysis of the fit between MiniBooNE data and this new oscillation model.

Comments: 14 pages, 5 Figures