Phys. Rev. Lett. 77, 3082–3085 (1996)Evidence for ν̅ μ→ν̅ e Oscillations from the LSND Experiment at the Los Alamos Meson Physics FacilityReceived 9 May 1996; published in the issue dated 7 October 1996 A search for ν̅ μ→ν̅ e oscillations has been conducted at the Los Alamos Meson Physics Facility by using ν̅ μ from μ+ decay at rest. The ν̅ e are detected via the reaction ν̅ ep→e+n, correlated with a γ from np→dγ ( 2.2MeV). The use of tight cuts to identify e+ events with correlated γ rays yields 22 events with e+ energy between 36 and 60MeV and only 4.6±0.6 background events. A fit to the e+ events between 20 and 60MeV yields a total excess of 51.0-19.5+20.2±8.0 events. If attributed to ν̅ μ→ν̅ e oscillations, this corresponds to an oscillation probability of ( 0.31±0.12±0.05)%. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.77.3082
DOI:
10.1103/PhysRevLett.77.3082
PACS:
14.60.Pq, 13.15.+g
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