Antimatter Experiment: Gravity, Interferometry, Spectroscopy
E210171
Antimatter Experiment: Gravity, Interferometry, Spectroscopy (AEgIS) is a CERN-based physics experiment designed to precisely measure how antimatter, particularly antihydrogen, responds to gravity using advanced interferometric and spectroscopic techniques.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Antimatter Experiment: Gravity, Interferometry, Spectroscopy canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T1889348 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Antimatter Experiment: Gravity, Interferometry, Spectroscopy Context triple: [AEgIS experiment, fullName, Antimatter Experiment: Gravity, Interferometry, Spectroscopy]
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A.
Muon g-2 experiment
The Muon g-2 experiment is a high-precision particle physics experiment that measures the anomalous magnetic moment of the muon to test the limits of the Standard Model and search for signs of new physics.
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B.
Ives–Stilwell experiment
The Ives–Stilwell experiment is a classic test of special relativity that measured the relativistic Doppler effect to confirm time dilation for fast-moving ions.
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C.
Kennedy–Thorndike experiment
The Kennedy–Thorndike experiment is a classic test of special relativity that examined the constancy of the speed of light using an interferometer with unequal arm lengths and varying laboratory velocity.
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D.
AMS-02 experiment
The AMS-02 experiment is a state-of-the-art particle physics detector mounted on the International Space Station to study cosmic rays and search for dark matter and antimatter in space.
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E.
ALPHA experiment
The ALPHA experiment is a CERN-based research project that studies antihydrogen atoms to test fundamental symmetries between matter and antimatter.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Antimatter Experiment: Gravity, Interferometry, Spectroscopy Target entity description: Antimatter Experiment: Gravity, Interferometry, Spectroscopy (AEgIS) is a CERN-based physics experiment designed to precisely measure how antimatter, particularly antihydrogen, responds to gravity using advanced interferometric and spectroscopic techniques.
-
A.
Muon g-2 experiment
The Muon g-2 experiment is a high-precision particle physics experiment that measures the anomalous magnetic moment of the muon to test the limits of the Standard Model and search for signs of new physics.
-
B.
Ives–Stilwell experiment
The Ives–Stilwell experiment is a classic test of special relativity that measured the relativistic Doppler effect to confirm time dilation for fast-moving ions.
-
C.
Kennedy–Thorndike experiment
The Kennedy–Thorndike experiment is a classic test of special relativity that examined the constancy of the speed of light using an interferometer with unequal arm lengths and varying laboratory velocity.
-
D.
AMS-02 experiment
The AMS-02 experiment is a state-of-the-art particle physics detector mounted on the International Space Station to study cosmic rays and search for dark matter and antimatter in space.
-
E.
ALPHA experiment
The ALPHA experiment is a CERN-based research project that studies antihydrogen atoms to test fundamental symmetries between matter and antimatter.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
CERN experiment
ⓘ
antimatter experiment ⓘ physics experiment ⓘ |
| aim |
develop interferometric techniques for antihydrogen
ⓘ
measure gravitational acceleration of antihydrogen ⓘ perform precision spectroscopy of antihydrogen ⓘ test the weak equivalence principle with antimatter ⓘ test whether antimatter falls like matter in Earth’s gravitational field ⓘ |
| collaborationType | international collaboration ⓘ |
| country | Switzerland ⓘ |
| dataType |
annihilation position distributions
ⓘ
time-of-flight distributions of antihydrogen ⓘ |
| field |
antimatter physics
ⓘ
gravitational physics ⓘ particle physics ⓘ |
| goalPrecision | percent-level measurement of antihydrogen gravitational acceleration ⓘ |
| hasAcronym | AEgIS ⓘ |
| hostInstitution | CERN ⓘ |
| locatedAt | Antiproton Decelerator ⓘ |
| locatedIn | CERN ⓘ |
| measures | vertical deflection of antihydrogen in Earth’s gravity ⓘ |
| organizationType | scientific collaboration ⓘ |
| produces | antihydrogen in a vacuum environment ⓘ |
| relatedTo |
ALPHA experiment
ⓘ
ATRAP experiment ⓘ BASE experiment ⓘ GBAR experiment ⓘ |
| researchArea |
CPT symmetry tests
ⓘ
antihydrogen ⓘ gravity ⓘ interferometry ⓘ spectroscopy ⓘ weak equivalence principle ⓘ
linked to:
equivalence principle
|
| studies |
antihydrogen atoms
ⓘ
antiprotons ⓘ positrons ⓘ |
| testsPrinciple | equivalence principle ⓘ |
| testsTheory |
general relativity
ⓘ
standard model of particle physics ⓘ |
| usesFacility |
CERN Antiproton Decelerator
ⓘ
linked to:
Antiproton Decelerator
|
| usesMethod |
Moire deflectometer
ⓘ
linked to:
Moiré deflectometer
Paul trap ⓘ Penning trap ⓘ
linked to:
Penning traps
Rydberg excitation of antihydrogen ⓘ cold antihydrogen formation ⓘ laser spectroscopy ⓘ matter-wave interferometry ⓘ pulsed production of antihydrogen ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Antimatter Experiment: Gravity, Interferometry, Spectroscopy Description of subject: Antimatter Experiment: Gravity, Interferometry, Spectroscopy (AEgIS) is a CERN-based physics experiment designed to precisely measure how antimatter, particularly antihydrogen, responds to gravity using advanced interferometric and spectroscopic techniques.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.