0000000000235214

AUTHOR

K. Mcconnel

showing 2 related works from this author

Evidence for Muon Neutrino Oscillation in an Accelerator-Based Experiment

2005

We present results for muon neutrino oscillation in the KEK to Kamioka (K2K) long-baseline neutrino oscillation experiment. K2K uses an accelerator-produced muon neutrino beam with a mean energy of 1.3 GeV directed at the Super-Kamiokande detector. We observed the energy dependent disappearance of muon neutrino, which we presume have oscillated to tau neutrino. The probability that we would observe these results if there is no neutrino oscillation is 0.0050% (4.0 sigma).

Particle physicsPhysics::Instrumentation and DetectorsAstrophysics::High Energy Astrophysical PhenomenaGeneral Physics and AstronomyFOS: Physical sciencesddc:500.201 natural sciences7. Clean energyHigh Energy Physics - ExperimentNuclear physicsHigh Energy Physics - Experiment (hep-ex)0103 physical sciencesMuon neutrino010306 general physicsNeutrino oscillationPhysicsTamura Norio010308 nuclear & particles physicsOscillationDetectorHigh Energy Physics::PhenomenologySigmaFísicaSolar neutrino problemK2K experimentPhysics::Accelerator Physics田村 詔生High Energy Physics::ExperimentBeam (structure)
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Search for coherent charged pion production in neutrino-carbon interactions

2005

We report the result from a search for charged-current coherent pion production induced by muon neutrinos with a mean energy of 1.3 GeV. The data are collected with a fully active scintillator detector in the K2K long-baseline neutrino oscillation experiment. No evidence for coherent pion production is observed and an upper limit of $0.60 \times 10^{-2}$ is set on the cross section ratio of coherent pion production to the total charged-current interaction at 90% confidence level. This is the first experimental limit for coherent charged pion production in the energy region of a few GeV.

Particle physicsMesonPhysics::Instrumentation and DetectorsNeutrino-nucleus reactionsFOS: Physical sciencesGeneral Physics and Astronomyddc:500.201 natural sciences7. Clean energyHigh Energy Physics - ExperimentNuclear physicsHigh Energy Physics - Experiment (hep-ex)PionExperiment-HEP0103 physical sciencesNuclear Experiment (nucl-ex)010306 general physicsNeutrino oscillationNuclear ExperimentNuclear ExperimentCharged currentPhysicsMuonTamura Norio010308 nuclear & particles physicsNeutrino oscillationsFísica田村 詔生Production (computer science)High Energy Physics::ExperimentNeutrinoLepton
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