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We present an analysis of atmospheric neutrino data from a 33.0 kiloton-year (535-day) exposure of the Super{Kamiokande detector. The data exhibit a zenith angle dependent decit of muon neutrinos which is inconsistent with expectations based on calculations of the atmospheric neutrino ux. Experimental biases and uncertainties in the prediction of neutrino(More)
The results of the second phase of the Super-Kamiokande solar neutrino measurement are presented and compared to the first phase. The solar neutrino flux spectrum and time-variation as 2 well as oscillation results are statistically consistent with the first phase and do not show spectral distortion. The time-dependent flux measurement of the combined first(More)
Super-Kamiokande is the world's largest water Cherenkov detector, with net mass 50,000 tons. Earth's atmosphere, and the K2K long-baseline neutrino beam with high efficiency. These data provided crucial information for our current understanding of neutrino oscillations, as well as setting stringent limits on nucleon decay. In this paper, we describe the(More)
This report summarises the conclusions from the detector group of the International Scoping Study of a future Neutrino Factory and Super-Beam neutrino facility. The baseline detector options for each possible neutrino beam are defined as follows: 1. A very massive (Megaton) water Cherenkov detector is the baseline option for a sub-GeV Beta Beam and Super(More)
The T2K experiment observes indications of ν(μ) → ν(e) appearance in data accumulated with 1.43×10(20) protons on target. Six events pass all selection criteria at the far detector. In a three-flavor neutrino oscillation scenario with |Δm(23)(2)| = 2.4×10(-3)  eV(2), sin(2)2θ(23) = 1 and sin(2)2θ(13) = 0, the expected number of such events is 1.5±0.3(syst).(More)
Muon neutrino disappearance probability as a function of neutrino flight length L over neutrino energy E was studied. A dip in the L/E distribution was observed in the data, as predicted from the sinusoidal flavor transition probability of neutrino oscillation. The observed L/E distribution constrained nu(micro)<-->nu(tau) neutrino oscillation parameters;(More)
With the 50th Anniversary of IMIA approaching in 2017, the IMIA Board approved the creation of a Taskforce for compiling materials and writing a history of the organization. As part of the work of the Taskforce, the authors have developed informatics tools, and begun collecting IMIA-related historical materials from its members, while soliciting(More)
We present results for nu(mu) oscillation in the KEK to Kamioka (K2K) long-baseline neutrino oscillation experiment. K2K uses an accelerator-produced nu(mu) beam with a mean energy of 1.3 GeV directed at the Super-Kamiokande detector. We observed the energy-dependent disappearance of nu(mu), which we presume have oscillated to nu(tau). The probability that(More)
We present a search for nonzero 13 and deviations of sin 2 23 from 0.5 in the oscillations of atmospheric neutrino data from Super-Kamiokande I, II, and III. No distortions of the neutrino flux consistent with nonzero 13 are found and both neutrino mass hierarchy hypotheses are in agreement with the data. The data are best fit at Ám 2 ¼ 2:1 Â 10 À3 eV 2 ,(More)