νedisappearance in MiniBooNE

Abstract

The anomalous excess of low-energy ${\ensuremath{\nu}}_{e}$ events measured in the MiniBooNE experiment is explained through a renormalization of the absolute neutrino flux and a simultaneous disappearance of the ${\ensuremath{\nu}}_{e}$'s in the beam, which is compatible with that indicated by the results of gallium radioactive source experiments. We present the results of the fit of MiniBooNE data (${P}_{{\ensuremath{\nu}}_{e}\ensuremath{\rightarrow}{\ensuremath{\nu}}_{e}}={0.64}_{\ensuremath{-}0.07}^{+0.08}$) and the combined fit of MiniBooNE data and the ${\ensuremath{\nu}}_{e}$ disappearance measured in the gallium radioactive source experiments, which gives ${P}_{{\ensuremath{\nu}}_{e}\ensuremath{\rightarrow}{\ensuremath{\nu}}_{e}}=0.82\ifmmode\pm\else\textpm\fi{}0.04$. We show that our interpretation of the data is also compatible with an old indication in favor of ${\ensuremath{\nu}}_{e}$ disappearance found from the analysis of the results of beam-dump experiments, leading to ${P}_{{\ensuremath{\nu}}_{e}\ensuremath{\rightarrow}{\ensuremath{\nu}}_{e}}={0.80}_{\ensuremath{-}0.04}^{+0.03}$.