AD
E41830
AD is a CERN facility that slows down antiprotons so they can be used in precision experiments studying antimatter.
All labels observed (1)
| Label | Occurrences |
|---|---|
| AD canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T327791 — 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: AD Context triple: [Antiproton Decelerator, abbreviation, AD]
-
A.
ADS
ADS is the stock ticker symbol under which the global sportswear company Adidas is traded on the Frankfurt Stock Exchange.
-
B.
PR
PR is the two-letter postal abbreviation commonly used to refer to Puerto Rico, a Caribbean island and unincorporated territory of the United States.
-
C.
Ap
Ap is the commonly used abbreviation for the Norwegian Labour Party, a major social-democratic political party in Norway.
-
D.
AS
AS is the official vehicle registration code assigned to the Indian state of Assam.
-
E.
AS
AS is the two-letter ISO 3166-1 alpha-2 country code assigned to American Samoa.
- 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: AD Target entity description: AD is a CERN facility that slows down antiprotons so they can be used in precision experiments studying antimatter.
-
A.
ADS
ADS is the stock ticker symbol under which the global sportswear company Adidas is traded on the Frankfurt Stock Exchange.
-
B.
PR
PR is the two-letter postal abbreviation commonly used to refer to Puerto Rico, a Caribbean island and unincorporated territory of the United States.
-
C.
Ap
Ap is the commonly used abbreviation for the Norwegian Labour Party, a major social-democratic political party in Norway.
-
D.
AS
AS is the official vehicle registration code assigned to the Indian state of Assam.
-
E.
AS
AS is the two-letter ISO 3166-1 alpha-2 country code assigned to American Samoa.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
CERN facility
ⓘ
decelerator ring ⓘ decelerator ring ⓘ particle accelerator ⓘ |
| abbreviation | AD ⓘ |
| acronymOfPredecessor | LEAR ⓘ |
| beamEnergyRange | from 3.5 GeV/c to about 100 MeV/c ⓘ |
| beamType | antiproton beam ⓘ |
| country | Switzerland ⓘ |
| feeds |
AEgIS experiment
ⓘ
ALPHA experiment ⓘ ASACUSA experiment ⓘ ATRAP experiment ⓘ BASE experiment ⓘ GBAR experiment ⓘ PUMA experiment ⓘ |
| finalKineticEnergy | about 5.3 MeV ⓘ |
| fullName | Antiproton Decelerator ⓘ |
| hasComponent |
electron cooling system
ⓘ
radio-frequency cavities ⓘ stochastic cooling system ⓘ storage ring ⓘ |
| locatedIn |
Geneva
ⓘ
Meyrin ⓘ Switzerland ⓘ |
| locatedNear | France ⓘ |
| location | CERN ⓘ |
| operator | CERN ⓘ |
| particleType | antiproton ⓘ |
| partOf | CERN accelerator complex ⓘ |
| produces | low-energy antiproton bunches ⓘ |
| purpose |
to decelerate antiprotons
ⓘ
to further decelerate antiprotons from the Antiproton Decelerator ⓘ to produce low-energy antiprotons ⓘ to supply antiprotons for antimatter experiments ⓘ |
| replaced |
Low Energy Antiproton Ring
ⓘ
linked to:
Antiproton Decelerator
|
| researchField |
antimatter physics
ⓘ
fundamental interactions ⓘ particle physics ⓘ |
| startOfOperation | 2000 ⓘ |
| status | operational ⓘ |
| studies |
CPT symmetry
ⓘ
antihydrogen ⓘ antiproton properties ⓘ gravity with antimatter ⓘ |
| upgrade | ELENA ring ⓘ |
| usedFor |
precision measurements of antiproton magnetic moment
ⓘ
precision spectroscopy of antihydrogen ⓘ |
| uses | proton beam from Proton Synchrotron ⓘ |
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: AD Description of subject: AD is a CERN facility that slows down antiprotons so they can be used in precision experiments studying antimatter.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
AD