Phys. Rev. D 64, 112007 (2001) [22 pages]Evidence for neutrino oscillations from the observation of ν̅ e appearance in a ν̅ μ beamReceived 27 April 2001; published 13 November 2001 A search for ν̅ μ→ν̅ e oscillations was conducted by the Liquid Scintillator Neutrino Detector at the Los Alamos Neutron Science Center using ν̅ μ from μ+ decay at rest. A total excess of 87.9±22.4±6.0 events consistent with ν̅ ep⃗e+n scattering was observed above the expected background. This excess corresponds to an oscillation probability of (0.264±0.067±0.045)%, which is consistent with an earlier analysis. In conjunction with other known limits on neutrino oscillations, the LSND data suggest that neutrino oscillations occur in the 0.2–10 eV2/c4 Δm2 range, indicating a neutrino mass greater than 0.4 eV/c2. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.64.112007
DOI:
10.1103/PhysRevD.64.112007
PACS:
14.60.St, 14.60.Pq, 25.30.Pt
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