GBAR experiment
E41835
The GBAR experiment is a physics research project at CERN designed to study the behavior of antihydrogen in Earth's gravitational field to test the equivalence principle with antimatter.
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
CERN experiment
→
antimatter experiment → gravitational experiment → physics experiment → |
| acronym |
GBAR
→
|
| aimsToDetermine |
magnitude of the gravitational acceleration of antihydrogen
→
sign of the gravitational acceleration of antihydrogen → |
| collaborationType |
international collaboration
→
|
| countryOfHostInstitution |
Switzerland
→
|
| fullName |
Gravitational Behaviour of Antihydrogen at Rest
→
|
| hasEnvironment |
cryogenic conditions
→
ultra-high vacuum → |
| hostedAt |
Antiproton Decelerator
→
ELENA ring → |
| locatedIn |
CERN
→
Geneva → Switzerland → |
| measuresQuantity |
free-fall time of antihydrogen
→
gravitational acceleration of antihydrogen → |
| proposalDate |
early 2010s
→
|
| relatedTo |
AEgIS experiment
→
ALPHA experiment → ATRAP experiment → BASE experiment → |
| researchField |
antimatter physics
→
gravitation → particle physics → |
| researchObjective |
to measure the free-fall acceleration of antihydrogen
→
to study the behavior of antihydrogen in Earth’s gravitational field → to test the weak equivalence principle with antimatter → |
| sponsor |
CERN
→
|
| startDate |
2010s
→
|
| status |
data-taking preparation
→
under development → |
| testsPrinciple |
equivalence principle
→
weak equivalence principle → |
| testsTheory |
CPT symmetry
→
general relativity with antimatter → |
| usesFacility |
Antiproton Decelerator
→
ELENA → |
| usesModel |
general relativity
→
|
| usesParticle |
antihydrogen
→
antiproton → positron → |
| usesTechnique |
antihydrogen ion production
→
laser cooling → time-of-flight measurement → trapping of charged particles → ultracold antihydrogen production → |
Referenced by (5)
| Subject (surface form when different) | Predicate |
|---|---|
|
AEgIS experiment
→
ALPHA experiment → |
relatedTo |
|
ELENA ring
→
|
connectedTo |
|
Antiproton Decelerator
→
|
feeds |
|
Antiproton Decelerator
→
|
providesBeamTo |