Neutrino Interactions with Matter and the MiniBooNE anomaly

Understand

The excess of electron-like events measured by MiniBooNE challenges our understanding of neutrinos and their interactions.

• We review the status of this open problem and ongoing efforts to resolve it.
• After introducing the experiment and its results, we consider the main experimental backgrounds and the related physics of neutrino interactions with matter such as quasielastic-like scattering and weak pion production on nucleons and nuclei.
• Special attention is paid to single photon emission in neutral current interactions and, in particular, its coherent channel.