experiments at the Sudbury Neutrino Observatory
E537890
Experiments at the Sudbury Neutrino Observatory were groundbreaking studies of solar neutrinos that provided key evidence for neutrino oscillations and the existence of neutrino mass.
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
neutrino experiment series
ⓘ
particle physics experiment ⓘ solar neutrino experiment ⓘ |
| carriedOutAt | Sudbury Neutrino Observatory NERFINISHED ⓘ |
| collaboratingCountry |
Canada
NERFINISHED
ⓘ
United Kingdom NERFINISHED ⓘ United States NERFINISHED ⓘ |
| collaborationSize | about 100 scientists ⓘ |
| constrainedParameter |
mass-squared difference Δm²21
ⓘ
solar neutrino mixing angle θ12 ⓘ |
| dataTakingStart | 1999 ⓘ |
| dataUsedFor | global fits of neutrino oscillation parameters ⓘ |
| depthBelowSurface | about 2 kilometers underground ⓘ |
| depthInMetersWaterEquivalent | about 6000 meters water equivalent ⓘ |
| designFeature |
deep underground location to reduce cosmic-ray background
ⓘ
ultra-low background materials and shielding ⓘ |
| detectedNeutrinoFlavor |
electron neutrinos
ⓘ
muon neutrinos ⓘ tau neutrinos ⓘ |
| detectedNeutrinoSource | solar neutrinos from the Sun ⓘ |
| firstResultsPublished | early 2000s ⓘ |
| fundedBy |
Natural Sciences and Engineering Research Council of Canada
NERFINISHED
ⓘ
Particle Physics and Astronomy Research Council (UK) NERFINISHED ⓘ United States Department of Energy NERFINISHED ⓘ |
| impactOnAstrophysics | confirmed standard solar model predictions for total neutrino flux ⓘ |
| impactOnPhysics | established that the Standard Model must be extended to include neutrino mass ⓘ |
| keyResult |
demonstrated flavor transformation of solar neutrinos
ⓘ
measured electron neutrino flux lower than total active neutrino flux ⓘ measured total active solar neutrino flux consistent with solar model predictions ⓘ resolved the solar neutrino problem ⓘ |
| locatedIn | Creighton Mine, near Sudbury, Ontario, Canada NERFINISHED ⓘ |
| measuredInteractionType |
charged-current interactions on deuterons
ⓘ
elastic scattering on electrons ⓘ neutral-current interactions on deuterons ⓘ |
| operatedBy | SNO Collaboration NERFINISHED ⓘ |
| primaryGoal |
investigate neutrino oscillations
ⓘ
study solar neutrinos ⓘ test solar neutrino flux predictions ⓘ |
| providedEvidenceFor |
neutrino oscillations
ⓘ
non-zero neutrino mass ⓘ |
| recognizedBy | 2015 Nobel Prize in Physics to Arthur B. McDonald NERFINISHED ⓘ |
| relatedExperiment |
Homestake experiment
NERFINISHED
ⓘ
Super-Kamiokande NERFINISHED ⓘ |
| successorExperiment | SNO+ NERFINISHED ⓘ |
| supportedTheory |
Mikheyev–Smirnov–Wolfenstein (MSW) effect
NERFINISHED
ⓘ
three-flavor neutrino oscillation framework ⓘ |
| usedDetectorType | heavy water Cherenkov detector ⓘ |
| usedTargetMass | about 1000 tonnes of heavy water ⓘ |
| usedTargetMaterial | heavy water (D2O) ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.