ATRAP experiment
E42515
The ATRAP experiment is a particle physics project at CERN dedicated to trapping and studying antihydrogen atoms and other antimatter systems to test fundamental symmetries and the properties of antimatter.
All labels observed (2)
| Label | Occurrences |
|---|---|
| ATRAP experiment canonical | 9 |
| ATHENA experiment | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T327804 — 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: ATRAP experiment Context triple: [Antiproton Decelerator, providesBeamTo, ATRAP experiment]
-
A.
ALPHA experiment
The ALPHA experiment is a CERN-based research project that studies antihydrogen atoms to test fundamental symmetries between matter and antimatter.
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B.
UA1 experiment
The UA1 experiment was a high-energy physics collaboration at CERN’s Super Proton Synchrotron that became famous for providing the first experimental evidence of the W and Z bosons, key carriers of the weak nuclear force.
-
C.
ATLAS
ATLAS is a major particle physics experiment and detector at the Large Hadron Collider that investigates fundamental particles and forces, including the Higgs boson.
-
D.
GBAR experiment
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.
-
E.
CMS experiment
The CMS experiment is a major general-purpose particle physics detector at CERN’s Large Hadron Collider designed to investigate a wide range of phenomena including the Higgs boson, dark matter candidates, and physics beyond the Standard Model.
- 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: ATRAP experiment Target entity description: The ATRAP experiment is a particle physics project at CERN dedicated to trapping and studying antihydrogen atoms and other antimatter systems to test fundamental symmetries and the properties of antimatter.
-
A.
ALPHA experiment
The ALPHA experiment is a CERN-based research project that studies antihydrogen atoms to test fundamental symmetries between matter and antimatter.
-
B.
UA1 experiment
The UA1 experiment was a high-energy physics collaboration at CERN’s Super Proton Synchrotron that became famous for providing the first experimental evidence of the W and Z bosons, key carriers of the weak nuclear force.
-
C.
ATLAS
ATLAS is a major particle physics experiment and detector at the Large Hadron Collider that investigates fundamental particles and forces, including the Higgs boson.
-
D.
GBAR experiment
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.
-
E.
CMS experiment
The CMS experiment is a major general-purpose particle physics detector at CERN’s Large Hadron Collider designed to investigate a wide range of phenomena including the Higgs boson, dark matter candidates, and physics beyond the Standard Model.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
CERN experiment
ⓘ
antimatter experiment ⓘ particle physics experiment ⓘ physics research project ⓘ |
| aimsToMeasure |
antihydrogen spectral lines
ⓘ
antimatter properties with high precision ⓘ |
| basedAt | Geneva ⓘ |
| collaboratesWith |
ALPHA experiment
ⓘ
other CERN AD experiments ⓘ |
| dataSource |
antiprotons from Antiproton Decelerator
ⓘ
positrons from radioactive sources or positron accumulators ⓘ |
| field |
antimatter physics
ⓘ
atomic physics ⓘ particle physics ⓘ |
| focus | precision comparison of matter and antimatter ⓘ |
| goal |
compare hydrogen and antihydrogen spectra
ⓘ
investigate gravitational behavior of antimatter ⓘ study properties of antihydrogen ⓘ test CPT symmetry with antimatter ⓘ trap antihydrogen atoms ⓘ |
| hostOrganization | CERN ⓘ |
| locatedIn |
Antiproton Decelerator
ⓘ
CERN ⓘ |
| motivation |
search for deviations from Standard Model predictions
ⓘ
understand matter–antimatter asymmetry in the universe ⓘ |
| produces | cold antihydrogen ⓘ |
| researchArea |
CPT symmetry tests
ⓘ
antihydrogen ⓘ antimatter trapping ⓘ antiprotons ⓘ fundamental symmetries ⓘ matter–antimatter comparison ⓘ positrons ⓘ precision spectroscopy ⓘ |
| studies |
antihydrogen atoms
ⓘ
antiproton charge-to-mass ratio ⓘ antiproton–positron systems ⓘ magnetic moment of antiprotons ⓘ |
| tests |
CPT invariance
ⓘ
Standard Model symmetries ⓘ |
| uses |
Penning trap
ⓘ
cryogenic techniques ⓘ laser spectroscopy ⓘ magnetic traps ⓘ |
| usesFacility |
Antiproton Decelerator
ⓘ
surface form:
CERN Antiproton Decelerator
|
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: ATRAP experiment Description of subject: The ATRAP experiment is a particle physics project at CERN dedicated to trapping and studying antihydrogen atoms and other antimatter systems to test fundamental symmetries and the properties of antimatter.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
ATHENA experiment