Homestake experiment
E727970
The Homestake experiment was a pioneering underground neutrino observatory that first detected solar neutrinos and revealed the solar neutrino problem, profoundly influencing particle physics and astrophysics.
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
neutrino observatory
ⓘ
solar neutrino experiment ⓘ underground physics experiment ⓘ |
| alsoKnownAs |
Davis experiment
NERFINISHED
ⓘ
Homestake Mine experiment NERFINISHED ⓘ |
| argonCountingMethod | low-background proportional counters ⓘ |
| associatedLaureate | Raymond Davis Jr. NERFINISHED ⓘ |
| collaborator | John N. Bahcall NERFINISHED ⓘ |
| dataCollectionMethod | periodic extraction of argon-37 ⓘ |
| depth | about 1,478 meters underground ⓘ |
| detectedParticle | electron neutrino ⓘ |
| detectedSource | Sun NERFINISHED ⓘ |
| detectionReaction | ν_e + 37Cl → 37Ar + e− ⓘ |
| endDateApprox | 1990s ⓘ |
| endYearApprox | 1994 ⓘ |
| fundedBy |
U.S. Department of Energy
NERFINISHED
ⓘ
U.S. National Science Foundation NERFINISHED ⓘ |
| hostRock | gold mine ⓘ |
| inferredPhenomenon |
neutrino flavor change
ⓘ
neutrino oscillations ⓘ |
| influenced |
GALLEX experiment
NERFINISHED
ⓘ
Kamiokande experiment NERFINISHED ⓘ SAGE experiment NERFINISHED ⓘ Sudbury Neutrino Observatory NERFINISHED ⓘ Super-Kamiokande NERFINISHED ⓘ |
| legacy | established solar neutrino astronomy as a field ⓘ |
| locatedIn |
Homestake Mine
NERFINISHED
ⓘ
Lead, South Dakota NERFINISHED ⓘ |
| locatedInCountry |
United States of America
ⓘ
surface form:
United States
|
| measuredQuantity | solar neutrino flux ⓘ |
| measuredUnit | solar neutrino units (SNU) ⓘ |
| nobelPrizeConnection | contributed to 2002 Nobel Prize in Physics ⓘ |
| notableResult |
discovery of solar neutrino deficit
ⓘ
first detection of solar neutrinos ⓘ formulation of the solar neutrino problem ⓘ |
| observedFluxRelativeToTheory | about one-third of predicted value ⓘ |
| principalInvestigator | Raymond Davis Jr. NERFINISHED ⓘ |
| purpose | to detect solar electron neutrinos via inverse beta decay on chlorine ⓘ |
| researchField |
astroparticle physics
ⓘ
neutrino physics ⓘ solar physics ⓘ |
| startDate | late 1960s ⓘ |
| startYearApprox | 1967 ⓘ |
| tankContent | perchloroethylene cleaning fluid ⓘ |
| tankVolume | about 380,000 liters ⓘ |
| theoreticalModelCompared | standard solar model ⓘ |
| usedDetectorType | chlorine-based radiochemical detector ⓘ |
| usedTargetIsotope | chlorine-37 ⓘ |
| usedTargetMaterial | perchloroethylene ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.