摘要: Abstract The LSND experiment at Los Alamos has conducted a search for ν μ → e oscillation using from μ+ decay rest. are detected via the reaction p + n , correlated with 2.2 MeV γ np dγ. use of tight cuts to identify e+ events rays yielded 22 energy between 36 and 60 only 4.6 ± 0.6 background events. probability that this excess is due entirely statistical fluctuations 4.1 × 10−8. A χ2 fit entire sample results in total 51.8−16.9+18.7 8.0 20 MeV. If attributed oscillations, corresponds an (averaged over experimental spatial acceptance) 0.31 0.12 0.05.
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