SuperKEKB B-factory

E571566

B-factory particle accelerator

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.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (10)

Label	Occurrences
SuperKEKB accelerator	3
KEKB collider	2
B-factories	1
KEK B-factory	1
KEKB	1
KEKB accelerator	1
SuperKEKB (as successor facility context)	1
SuperKEKB B-factory canonical	1
SuperKEKB collider	1
high-luminosity operation at SuperKEKB	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]

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
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 ⓘ
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 ⓘ linked to: B meson CP violation in the B sector ⓘ
hasComponent	electron ring ⓘ interaction region ⓘ positron ring ⓘ
hostsExperiment	Belle II ⓘ linked to: Belle II detector
locatedAt	KEK High Energy Accelerator Research Organization ⓘ linked to: High Energy Accelerator Research Organization (KEK)
locatedIn	Asia ⓘ Honshu ⓘ Ibaraki Prefecture ⓘ Tsukuba ⓘ
locatedOnSiteOf	KEK Tsukuba campus ⓘ linked to: High Energy Accelerator Research Organization (KEK)
luminosityDesign	super-high luminosity ⓘ
operatedBy	KEK ⓘ linked to: High Energy Accelerator Research Organization (KEK)
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 ⓘ linked to: SuperKEKB B-factory
primaryObservable	CP-violating asymmetries ⓘ lepton flavor universality tests ⓘ rare B decays ⓘ
relatedTo	Belle II experiment ⓘ linked to: Belle II detector
researchField	flavor physics ⓘ high-energy physics ⓘ particle physics ⓘ
successorTo	KEKB B-factory ⓘ
usesDetector	Belle II ⓘ linked to: Belle II detector