Belle II detector
E137090
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.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Belle II detector canonical | 2 |
| Belle II Collaboration | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1166203 — 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: Belle II detector Context triple: [Electromagnetic Calorimeter, partOf, Belle II detector]
-
A.
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.
-
B.
DØ detector
The DØ detector is a large particle physics experiment at Fermilab’s Tevatron collider designed to study high-energy proton–antiproton collisions and probe fundamental particles and forces.
-
C.
DUNE experiment
The DUNE experiment is a major international neutrino physics project designed to study neutrino oscillations, matter–antimatter asymmetry, and proton decay using intense neutrino beams and massive underground detectors.
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D.
Compact Muon Solenoid
The Compact Muon Solenoid (CMS) is a large general-purpose particle detector at CERN’s Large Hadron Collider designed to investigate a wide range of high-energy physics phenomena, including the Higgs boson and potential new particles.
-
E.
ASACUSA experiment
The ASACUSA experiment is a CERN-based research project that studies the properties of antiprotons and antihydrogen to test fundamental symmetries in 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: Belle II detector Target entity description: 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.
-
A.
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.
-
B.
DØ detector
The DØ detector is a large particle physics experiment at Fermilab’s Tevatron collider designed to study high-energy proton–antiproton collisions and probe fundamental particles and forces.
-
C.
DUNE experiment
The DUNE experiment is a major international neutrino physics project designed to study neutrino oscillations, matter–antimatter asymmetry, and proton decay using intense neutrino beams and massive underground detectors.
-
D.
Compact Muon Solenoid
The Compact Muon Solenoid (CMS) is a large general-purpose particle detector at CERN’s Large Hadron Collider designed to investigate a wide range of high-energy physics phenomena, including the Higgs boson and potential new particles.
-
E.
ASACUSA experiment
The ASACUSA experiment is a CERN-based research project that studies the properties of antiprotons and antihydrogen to test fundamental symmetries in physics.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
B-factory detector
ⓘ
flavor physics experiment ⓘ particle physics detector ⓘ |
| aimsToConstrain | new physics energy scales ⓘ |
| aimsToMeasure |
CKM matrix elements
ⓘ
rare decay branching fractions ⓘ |
| builtFor | high-luminosity B physics ⓘ |
| centerOfMassEnergy | around 10.58 GeV ⓘ |
| collaborationCountries | over 25 countries ⓘ |
| collaborationSize | more than 1000 scientists ⓘ |
| collisionType | electron-positron collisions ⓘ |
| constructionStart | around 2010 ⓘ |
| dataFormat | electron-positron collision events ⓘ |
| dataTakingStart | 2019 ⓘ |
| designedLuminosity | 8×10^35 cm^-2 s^-1 ⓘ |
| designedToStudy |
B-meson decays
ⓘ
charm hadron decays ⓘ tau lepton decays ⓘ |
| hasSubsystem |
K_L and muon detector
ⓘ
aerogel RICH counter ⓘ central drift chamber ⓘ electromagnetic calorimeter ⓘ particle identification system ⓘ silicon vertex detector ⓘ superconducting solenoid magnet ⓘ time-of-propagation counter ⓘ vertex detector ⓘ |
| hostInstitution |
High Energy Accelerator Research Organization (KEK)
ⓘ
surface form:
High Energy Accelerator Research Organization KEK
|
| integratedLuminosityGoal | about 50 ab^-1 ⓘ |
| locatedIn |
Ibaraki Prefecture
NERFINISHED
ⓘ
Japan ⓘ High Energy Accelerator Research Organization (KEK) ⓘ
surface form:
KEK
Tsukuba ⓘ |
| magneticFieldStrength | about 1.5 T ⓘ |
| operatedAt |
SuperKEKB B-factory
ⓘ
surface form:
SuperKEKB accelerator
|
| operatedBy |
Belle II detector
self-linksurface differs
ⓘ
surface form:
Belle II Collaboration
|
| optimizedFor | Υ(4S) resonance ⓘ |
| partOf |
High Energy Accelerator Research Organization (KEK)
ⓘ
surface form:
SuperKEKB experiment
|
| predecessorExperiment |
Belle detector at KEK B-factory
ⓘ
surface form:
KEKB B-factory
|
| relatedTo | SuperKEKB B-factory ⓘ |
| researchFocus |
CP violation in the B-meson system
ⓘ
flavor-changing neutral currents ⓘ lepton flavor violation ⓘ rare B decays ⓘ search for physics beyond the Standard Model ⓘ |
| studies |
radiative B decays
ⓘ
semileptonic B decays ⓘ time-dependent CP asymmetries ⓘ |
| successorOf |
Belle detector at KEK B-factory
ⓘ
surface form:
Belle detector
|
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: Belle II detector Description of subject: 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.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Belle II Collaboration