K2K experiment
E861502
The K2K experiment was a long-baseline neutrino experiment in Japan that sent a beam of muon neutrinos from KEK to the Super-Kamiokande detector, providing early accelerator-based evidence for neutrino oscillations.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
long-baseline neutrino experiment
ⓘ
particle physics experiment ⓘ |
| baselineLength | approximately 250 km ⓘ |
| baselineType | long-baseline ⓘ |
| beamEnergyRange | sub-GeV to few-GeV neutrinos ⓘ |
| beamSourceLocation | KEK NERFINISHED ⓘ |
| beamTargetLocation | Super-Kamiokande NERFINISHED ⓘ |
| collaborationType | international collaboration ⓘ |
| confirmedObservationOf | atmospheric neutrino oscillation seen by Super-Kamiokande ⓘ |
| country | Japan ⓘ |
| countryOfFarDetector | Japan NERFINISHED ⓘ |
| countryOfNearDetector | Japan NERFINISHED ⓘ |
| dataTakingPeriod | 1999–2004 ⓘ |
| detectionMedium | water Cherenkov detector ⓘ |
| distanceFromKEKToSuperKamiokande | about 250 km GENERATED ⓘ |
| endYear | 2004 ⓘ |
| evidenceType | accelerator-based evidence for neutrino oscillations ⓘ |
| farDetector | Super-Kamiokande NERFINISHED ⓘ |
| field |
high-energy physics
ⓘ
neutrino physics ⓘ |
| hostInstitution | KEK NERFINISHED ⓘ |
| locatedIn | Japan ⓘ |
| measuredQuantity |
mass-squared difference of atmospheric neutrino oscillation
ⓘ
mixing angle for atmospheric neutrino oscillation ⓘ |
| nearDetector | KEK near detector complex NERFINISHED ⓘ |
| neutrinoBeamDirection | from KEK to Super-Kamiokande ⓘ |
| neutrinoFlavorAtDetection | muon neutrino disappearance ⓘ |
| neutrinoFlavorAtSource | muon neutrino ⓘ |
| neutrinoProductionMethod | decay of secondary mesons produced by protons on target ⓘ |
| oscillationChannelStudied | muon neutrino to tau neutrino ⓘ |
| parentMesonType |
kaon
ⓘ
pion ⓘ |
| pioneeringStatus | first long-baseline accelerator neutrino experiment to confirm atmospheric neutrino oscillation ⓘ |
| primaryProtonEnergy | 12 GeV GENERATED ⓘ |
| producedNeutrinoBeamType | muon neutrino beam ⓘ |
| providedEvidenceFor | neutrino oscillation ⓘ |
| publicationType | results published in peer-reviewed journals ⓘ |
| resultType |
measurement of neutrino oscillation parameters
ⓘ
observation of muon neutrino disappearance ⓘ |
| startYear | 1999 ⓘ |
| status | completed ⓘ |
| studiedPhenomenon | neutrino oscillation ⓘ |
| successorExperiment | T2K experiment NERFINISHED ⓘ |
| usedBeamType | conventional horn-focused neutrino beam ⓘ |
| usedDetectorTechnology |
scintillator and tracking detectors at near site
ⓘ
water Cherenkov detection at far site ⓘ |
| usesAccelerator | KEK proton synchrotron NERFINISHED ⓘ |
| usesDetector | Super-Kamiokande NERFINISHED ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.