Abstract
A search for ν→ν oscillations has been conducted at the Los Alamos Meson Physics Facility using ν from decay at rest. The ν are detected via the reaction ν→n, correlated with the 2.2 MeV γ from np→dγ. The use of tight cuts to identify events with correlated γ rays yields 22 events with energy between 36 and 60 MeV and only 4.6±0.6 background events. The probability that this excess is due entirely to a statistical fluctuation is 4.1×. A fit to the entire sample results in a total excess of 51.±8.0 events with energy between 20 and 60 MeV. If attributed to ν→ν oscillations, this corresponds to an oscillation probability (averaged over the experimental energy and spatial acceptance) of (0.31±0.12±0.05)%. © 1996 The American Physical Society.
- Received 22 April 1996
DOI:https://doi.org/10.1103/PhysRevC.54.2685
©1996 American Physical Society