SuperKEKB B-factory
E571566
The SuperKEKB B-factory is a high-luminosity electron–positron collider in Japan designed to produce large numbers of B mesons for precision studies of CP violation and searches for physics beyond the Standard Model.
All labels observed (2)
| Label | Occurrences |
|---|---|
| SuperKEKB B-factory canonical | 1 |
| SuperKEKB accelerator | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6146516 — 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: SuperKEKB B-factory Context triple: [Belle II detector, relatedTo, SuperKEKB B-factory]
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A.
Belle detector at KEK B-factory
The Belle detector at the KEK B-factory is a high-energy physics experiment in Japan designed to study B-meson decays and CP violation in the quark sector using electron-positron collisions.
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B.
J-PARC
J-PARC (Japan Proton Accelerator Research Complex) is a high-intensity proton accelerator facility in Japan used for cutting-edge research in particle and nuclear physics, materials science, and related fields.
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C.
J-PARC neutrino beamline
The J-PARC neutrino beamline is a high-intensity neutrino production facility in Japan that generates and directs neutrino beams for long-baseline experiments such as T2K.
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D.
BaBar detector
The BaBar detector was a large particle physics experiment at the SLAC National Accelerator Laboratory designed to study B-meson decays and CP violation in high-energy electron–positron collisions.
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E.
Belle II detector
The Belle II detector is a large, sophisticated particle physics experiment at the SuperKEKB accelerator in Japan, designed to study rare processes in B-meson, charm, and tau decays to probe 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: SuperKEKB B-factory Target entity description: The SuperKEKB B-factory is a high-luminosity electron–positron collider in Japan designed to produce large numbers of B mesons for precision studies of CP violation and searches for physics beyond the Standard Model.
-
A.
Belle detector at KEK B-factory
The Belle detector at the KEK B-factory is a high-energy physics experiment in Japan designed to study B-meson decays and CP violation in the quark sector using electron-positron collisions.
-
B.
J-PARC
J-PARC (Japan Proton Accelerator Research Complex) is a high-intensity proton accelerator facility in Japan used for cutting-edge research in particle and nuclear physics, materials science, and related fields.
-
C.
J-PARC neutrino beamline
The J-PARC neutrino beamline is a high-intensity neutrino production facility in Japan that generates and directs neutrino beams for long-baseline experiments such as T2K.
-
D.
BaBar detector
The BaBar detector was a large particle physics experiment at the SLAC National Accelerator Laboratory designed to study B-meson decays and CP violation in high-energy electron–positron collisions.
-
E.
Belle II detector
The Belle II detector is a large, sophisticated particle physics experiment at the SuperKEKB accelerator in Japan, designed to study rare processes in B-meson, charm, and tau decays to probe physics beyond the Standard Model.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
B-factory
ⓘ
particle accelerator ⓘ |
| accelerates |
electrons
ⓘ
positrons ⓘ |
| aimsToProbe | new physics ⓘ |
| aimsToTest | Standard Model NERFINISHED ⓘ |
| collaborationInvolves | international collaboration ⓘ |
| collisionType | electron–positron ⓘ |
| country | Japan ⓘ |
| designedFor |
high-statistics data samples
ⓘ
precision measurements ⓘ |
| designedToProduce |
B mesons
ⓘ
large integrated luminosity ⓘ |
| energyRegime | asymmetric energy ⓘ |
| facilityType |
circular accelerator
ⓘ
collider ⓘ |
| focusesOn |
B meson system
NERFINISHED
ⓘ
CP violation in the B sector ⓘ |
| hasComponent |
electron ring
ⓘ
interaction region ⓘ positron ring ⓘ |
| hostsExperiment | Belle II NERFINISHED ⓘ |
| locatedAt | KEK High Energy Accelerator Research Organization NERFINISHED ⓘ |
| locatedIn |
Asia
ⓘ
Honshu ⓘ Ibaraki Prefecture NERFINISHED ⓘ Tsukuba NERFINISHED ⓘ |
| locatedOnSiteOf | KEK Tsukuba campus NERFINISHED ⓘ |
| luminosityDesign | super-high luminosity ⓘ |
| operatedBy | KEK NERFINISHED ⓘ |
| physicsGoal |
measurements of the CKM matrix
ⓘ
precision flavor physics ⓘ precision studies of CP violation ⓘ searches for physics beyond the Standard Model ⓘ studies of B meson decays ⓘ studies of charm and tau physics ⓘ |
| predecessor | KEKB NERFINISHED ⓘ |
| primaryObservable |
CP-violating asymmetries
ⓘ
lepton flavor universality tests ⓘ rare B decays ⓘ |
| relatedTo | Belle II experiment NERFINISHED ⓘ |
| researchField |
flavor physics
ⓘ
high-energy physics ⓘ particle physics ⓘ |
| successorTo | KEKB B-factory NERFINISHED ⓘ |
| usesDetector | Belle II 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: SuperKEKB B-factory Description of subject: The SuperKEKB B-factory is a high-luminosity electron–positron collider in Japan designed to produce large numbers of B mesons for precision studies of CP violation and searches for physics beyond the Standard Model.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
SuperKEKB accelerator