6533b853fe1ef96bd12ac9ac

RESEARCH PRODUCT

10.2 Discrete Symmetries

Konrad Kleinknecht

subject

Nuclear physicsPhysicsParticle physicsSterile neutrinoNeutrino detectorSolar neutrinoMeasurements of neutrino speedHigh Energy Physics::ExperimentSolar neutrino problemNeutrinoNeutrino oscillationZenith

description

1. The asymmetry of the zenith angle distribution of νμ of Super-Kamiokande is the direct evidence of νμ oscillations. 2. The first oscillation minimum was observed in the L/E distribution using the high resolution L/E sample of Super-Kamiokande. It confirms that the distortion of the zenith angle distribution is really due to neutrino oscillations and excludes other hypotheses such as neutrino decay and decoherence model. 3. A search for charged current (CC) interaction of ντ shows a 2.4σ excess of signal and the observed number of events is consistent with the expectation. 4. No indication of νe oscillation is observed so far in atmospheric neutrinos.

https://doi.org/10.1007/978-3-540-74203-6_11