Results on $ν_{μ} \to ν_{e}$ Neutrino Oscillations from the LSND Experiment

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31 August 1998

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 81 (9) , 1774-1777
https://doi.org/10.1103/physrevlett.81.1774

Abstract

A search for

ν_{μ} \to ν_{e}

oscillations has been conducted with the LSND apparatus using

ν_{μ}

from

π^{+}

decay in flight. Two analyses observe a total of 40 beam-on high-energy (60–200 MeV) electron events consistent with the

ν_{e} C \to e^{-} X

inclusive reaction. This number is significantly above the

21.9 \pm 2.1

events expected from the

ν_{e}

contamination in the beam and the beam-off background. If interpreted as an oscillation signal, the observed oscillation probability of

(2.6 \pm 1.0 \pm 0.5) \times 10^{- 3}

is consistent with the previously reported

{\bar{ν}}_{μ} \to {\bar{ν}}_{e}

oscillation evidence from LSND.

Keywords

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Version 1, 1997-09-17, ArXiv

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