Abstract
The MiniBooNE Collaboration observes unexplained electronlike events in the reconstructed neutrino energy range from 200 to 475 MeV. With protons on target, 544 electronlike events are observed in this energy range, compared to an expectation of events, corresponding to an excess of events. The shape of the excess in several kinematic variables is consistent with being due to either and charged-current scattering or neutral-current scattering with a photon in the final state. No significant excess of events is observed in the reconstructed neutrino energy range from 475 to 1250 MeV, where 408 events are observed compared to an expectation of events.
- Received 14 December 2008
DOI:https://doi.org/10.1103/PhysRevLett.102.101802
©2009 American Physical Society