# Measurement of Neutrino Oscillation with KamLAND: Evidence of Spectral Distortion

@inproceedings{Collaboration2004MeasurementON,
title={Measurement of Neutrino Oscillation with KamLAND: Evidence of Spectral Distortion},
author={The KamLAND Collaboration},
year={2004}
}
We present results of a study of neutrino oscillation based on a 766 ton-year exposure of KamLAND to reactor anti-neutrinos. We observe 258 \nuebar\ candidate events with energies above 3.4 MeV compared to 365.2 events expected in the absence of neutrino oscillation. Accounting for 17.8 expected background events, the statistical significance for reactor \nuebar disappearance is 99.998%. The observed energy spectrum disagrees with the expected spectral shape in the absence of neutrino… Expand
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