LEAR
E210167
LEAR (Low Energy Antiproton Ring) was a CERN facility designed to store and decelerate antiprotons for precision experiments in antimatter physics.
All labels observed (1)
| Label | Occurrences |
|---|---|
| LEAR canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1889212 — 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: LEAR Context triple: [Antiproton Decelerator, acronymOfPredecessor, LEAR]
-
A.
CLA
The Mercedes-Benz CLA is a compact luxury four-door coupé known for its sleek styling, advanced technology, and entry-level positioning within the brand’s lineup.
-
B.
LC
LC is the second-generation Holden Torana series produced in the late 1960s and early 1970s, notable for introducing six-cylinder performance variants in the compact Australian car lineup.
-
C.
LC
LC is the two-letter ISO 3166-1 alpha-2 country code assigned to Saint Lucia.
-
D.
CL
CL is the common abbreviation for Japan’s professional baseball Central League.
-
E.
DED
DED is the commonly used abbreviation for the ASME Design Engineering Division, a professional group within ASME focused on advancing the field of mechanical design engineering.
- 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: LEAR Target entity description: LEAR (Low Energy Antiproton Ring) was a CERN facility designed to store and decelerate antiprotons for precision experiments in antimatter physics.
-
A.
CLA
The Mercedes-Benz CLA is a compact luxury four-door coupé known for its sleek styling, advanced technology, and entry-level positioning within the brand’s lineup.
-
B.
LC
LC is the two-letter ISO 3166-1 alpha-2 country code assigned to Saint Lucia.
-
C.
LC
LC is the second-generation Holden Torana series produced in the late 1960s and early 1970s, notable for introducing six-cylinder performance variants in the compact Australian car lineup.
-
D.
CL
CL is the common abbreviation for Japan’s professional baseball Central League.
-
E.
DED
DED is the commonly used abbreviation for the ASME Design Engineering Division, a professional group within ASME focused on advancing the field of mechanical design engineering.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
CERN facility
ⓘ
particle accelerator ⓘ storage ring ⓘ |
| acceleratorType | synchrotron storage ring ⓘ |
| acronymFor | Low Energy Antiproton Ring ⓘ |
| associatedWith | Low Energy Ion Ring ⓘ |
| beamType | stored antiproton beam ⓘ |
| commissioned | 1982 ⓘ |
| contributedTo | development of techniques for low-energy antimatter beams ⓘ |
| conversion | converted to LEIR for LHC ion program ⓘ |
| country | Switzerland ⓘ |
| decommissioned | 1996 ⓘ |
| enabledExperiment |
CRYSTAL BARREL
ⓘ
JETSET ⓘ OBELIX ⓘ PS201 ⓘ |
| endOfOperation | 1996 ⓘ |
| energyRange | low-energy antiprotons ⓘ |
| field |
antimatter physics
ⓘ
particle physics ⓘ |
| fullName | Low Energy Antiproton Ring ⓘ |
| geographicRegion |
canton of Geneva
ⓘ
surface form:
Geneva region
|
| hostLaboratory |
Proton Synchrotron
ⓘ
surface form:
CERN Proton Synchrotron complex
|
| infrastructureReuse |
Low Energy Ion Ring
ⓘ
surface form:
converted into Low Energy Ion Ring (LEIR)
|
| locatedIn |
CERN
ⓘ
Meyrin ⓘ Switzerland ⓘ |
| notableFor |
high-precision studies of antiproton interactions
ⓘ
tests of CPT symmetry with antimatter ⓘ |
| operatedBy | CERN ⓘ |
| operationMode |
deceleration
ⓘ
storage ⓘ |
| particleType | antiproton ⓘ |
| partOf |
Antiproton Decelerator
ⓘ
surface form:
CERN Antiproton Decelerator complex
|
| predecessor |
Antiproton Accumulator
ⓘ
surface form:
CERN Antiproton Accumulator
|
| purpose |
deceleration of antiprotons
ⓘ
precision experiments in antimatter physics ⓘ storage of antiprotons ⓘ |
| scientificGoal |
precision spectroscopy of antiprotonic atoms
ⓘ
study of antiproton–proton interactions at low energies ⓘ |
| startOfOperation | 1982 ⓘ |
| status | decommissioned ⓘ |
| successor | Antiproton Decelerator ⓘ |
| typicalMomentumRange | ~100 MeV/c to a few GeV/c ⓘ |
| usesParticle | antiproton ⓘ |
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: LEAR Description of subject: LEAR (Low Energy Antiproton Ring) was a CERN facility designed to store and decelerate antiprotons for precision experiments in antimatter physics.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Antiproton Decelerator