Low Energy Antiproton Ring
E761912
The Low Energy Antiproton Ring (LEAR) was a CERN storage ring designed to decelerate and store antiprotons at low energies for precision experiments in antimatter physics.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Low Energy Antiproton Ring canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T8831988 — 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: Low Energy Antiproton Ring Context triple: [LEAR, fullName, Low Energy Antiproton Ring]
-
A.
Extra Low ENergy Antiproton ring
The Extra Low ENergy Antiproton (ELENA) ring is a deceleration and storage facility at CERN designed to slow antiprotons to very low energies for precision antimatter experiments.
-
B.
Antiproton Accumulator
The Antiproton Accumulator was a storage and cooling ring at CERN designed to collect, cool, and accumulate antiprotons for high-energy proton–antiproton collision experiments.
-
C.
Antiproton Decelerator
The Antiproton Decelerator is a specialized CERN facility that slows down antiprotons to low energies for precision experiments in antimatter physics.
-
D.
SPEAR storage ring
The SPEAR storage ring is an electron storage ring at SLAC National Accelerator Laboratory that historically served as both a particle physics collider and a synchrotron radiation source, forming the basis for later upgrades like SPEAR3.
-
E.
PEP-II storage ring
The PEP-II storage ring was an asymmetric-energy electron–positron collider at SLAC designed to produce large numbers of B mesons for precision studies of CP violation and other aspects of particle physics.
- 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: Low Energy Antiproton Ring Target entity description: The Low Energy Antiproton Ring (LEAR) was a CERN storage ring designed to decelerate and store antiprotons at low energies for precision experiments in antimatter physics.
-
A.
Extra Low ENergy Antiproton ring
The Extra Low ENergy Antiproton (ELENA) ring is a deceleration and storage facility at CERN designed to slow antiprotons to very low energies for precision antimatter experiments.
-
B.
Antiproton Accumulator
The Antiproton Accumulator was a storage and cooling ring at CERN designed to collect, cool, and accumulate antiprotons for high-energy proton–antiproton collision experiments.
-
C.
Antiproton Decelerator
The Antiproton Decelerator is a specialized CERN facility that slows down antiprotons to low energies for precision experiments in antimatter physics.
-
D.
SPEAR storage ring
The SPEAR storage ring is an electron storage ring at SLAC National Accelerator Laboratory that historically served as both a particle physics collider and a synchrotron radiation source, forming the basis for later upgrades like SPEAR3.
-
E.
PEP-II storage ring
The PEP-II storage ring was an asymmetric-energy electron–positron collider at SLAC designed to produce large numbers of B mesons for precision studies of CP violation and other aspects of particle physics.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
particle accelerator
ⓘ
scientific research facility ⓘ storage ring ⓘ |
| beamEnergyRange | about 5 MeV to about 200 MeV ⓘ |
| commissioned | 1982 ⓘ |
| convertedInto | Antiproton Decelerator infrastructure NERFINISHED ⓘ |
| country | Switzerland ⓘ |
| designedFor |
internal target experiments
ⓘ
slow extraction of antiprotons ⓘ |
| endOfOperation | 1996 ⓘ |
| fedBy |
Antiproton Accumulator
NERFINISHED
ⓘ
Proton Synchrotron NERFINISHED ⓘ |
| field |
antimatter physics
ⓘ
particle physics ⓘ |
| fullName | Low Energy Antiproton Ring NERFINISHED ⓘ |
| function |
deceleration of antiprotons
ⓘ
storage of low-energy antiprotons ⓘ |
| hasAcronym | LEAR NERFINISHED ⓘ |
| locatedIn |
CERN
ⓘ
Geneva region NERFINISHED ⓘ Meyrin NERFINISHED ⓘ |
| notableResult |
contributions to antihydrogen research groundwork
ⓘ
high-precision measurements of antiproton-proton interactions ⓘ |
| operatedBy | CERN NERFINISHED ⓘ |
| partOf | CERN accelerator complex NERFINISHED ⓘ |
| predecessor | Antiproton Accumulator NERFINISHED ⓘ |
| primaryBeamType | antiproton ⓘ |
| purpose |
precision experiments in antimatter physics
ⓘ
study of antiproton interactions at low energy ⓘ tests of fundamental symmetries ⓘ |
| startOfOperation | early 1980s ⓘ |
| status | decommissioned ⓘ |
| successor | Antiproton Decelerator NERFINISHED ⓘ |
| usedForExperiment |
PS200
NERFINISHED
ⓘ
PS201 NERFINISHED ⓘ PS202 NERFINISHED ⓘ PS203 ⓘ PS205 NERFINISHED ⓘ PS206 NERFINISHED ⓘ PS207 NERFINISHED ⓘ PS208 NERFINISHED ⓘ PS209 NERFINISHED ⓘ PS210 NERFINISHED ⓘ PS211 NERFINISHED ⓘ PS212 NERFINISHED ⓘ PS213 NERFINISHED ⓘ PS214 NERFINISHED ⓘ PS215 NERFINISHED ⓘ PS216 NERFINISHED ⓘ PS217 NERFINISHED ⓘ PS218 NERFINISHED ⓘ PS219 NERFINISHED ⓘ |
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: Low Energy Antiproton Ring Description of subject: The Low Energy Antiproton Ring (LEAR) was a CERN storage ring designed to decelerate and store antiprotons at low energies for precision experiments in antimatter physics.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.