J-PARC
E566987
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.
All labels observed (7)
| Label | Occurrences |
|---|---|
| J-PARC canonical | 8 |
| Japan Proton Accelerator Research Complex | 3 |
| J-PARC (Japan Proton Accelerator Research Complex) | 1 |
| J-PARC (jointly with JAEA) | 1 |
| J-PARC Main Ring | 1 |
| J-PARC Main Ring synchrotron | 1 |
| J-PARC site in Tokai | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6010097 — 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: J-PARC Context triple: [T2K, nearDetectorsLocation, J-PARC]
-
A.
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.
-
B.
High Energy Accelerator Research Organization (KEK)
The High Energy Accelerator Research Organization (KEK) is Japan’s premier national laboratory for particle physics and accelerator science, conducting fundamental research into the structure of matter and the universe.
-
C.
MAX IV Laboratory
MAX IV Laboratory is a world-leading Swedish synchrotron radiation facility in Lund that provides extremely bright X-ray and ultraviolet light for cutting-edge research in physics, chemistry, materials science, and life sciences.
-
D.
LBNF neutrino beamline
The LBNF neutrino beamline is a high-intensity, long-baseline facility designed to produce and direct neutrino beams from Fermilab to the DUNE detectors for precision studies of neutrino properties and fundamental physics.
-
E.
Fermilab Booster
Fermilab Booster is a rapid-cycling synchrotron at Fermilab that accelerates protons to intermediate energies before sending them to higher-energy accelerators and experiments.
- 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: J-PARC Target entity description: 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.
-
A.
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.
-
B.
High Energy Accelerator Research Organization (KEK)
The High Energy Accelerator Research Organization (KEK) is Japan’s premier national laboratory for particle physics and accelerator science, conducting fundamental research into the structure of matter and the universe.
-
C.
MAX IV Laboratory
MAX IV Laboratory is a world-leading Swedish synchrotron radiation facility in Lund that provides extremely bright X-ray and ultraviolet light for cutting-edge research in physics, chemistry, materials science, and life sciences.
-
D.
LBNF neutrino beamline
The LBNF neutrino beamline is a high-intensity, long-baseline facility designed to produce and direct neutrino beams from Fermilab to the DUNE detectors for precision studies of neutrino properties and fundamental physics.
-
E.
Fermilab Booster
Fermilab Booster is a rapid-cycling synchrotron at Fermilab that accelerates protons to intermediate energies before sending them to higher-energy accelerators and experiments.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
proton accelerator facility
ⓘ
research complex ⓘ scientific research infrastructure ⓘ |
| beamType | high-intensity proton beam ⓘ |
| collaborationBetween |
JAEA
ⓘ
linked to:
Japan Atomic Energy Agency
KEK ⓘ |
| constructionStartDate | 2001 ⓘ |
| coordinates | 36.463°N 140.566°E ⓘ |
| country | Japan ⓘ |
| energyRange | up to 50 GeV ⓘ |
| firstBeamDate | 2006 ⓘ |
| fullName |
Japan Proton Accelerator Research Complex
ⓘ
linked to:
J-PARC
|
| fundedBy | Government of Japan ⓘ |
| hasComponent |
3 GeV rapid cycling synchrotron
ⓘ
400 MeV proton linear accelerator ⓘ 50 GeV main ring synchrotron ⓘ Hadron Experimental Facility ⓘ Materials and Life Science Experimental Facility ⓘ Muon Science Facility ⓘ Neutrino Experimental Facility ⓘ |
| locatedIn |
Honshu
ⓘ
Ibaraki Prefecture ⓘ Japan ⓘ Tokai village ⓘ Tokai, Ibaraki Prefecture ⓘ |
| notableExperiment |
T2K neutrino experiment
ⓘ
linked to:
T2K
|
| officialStartOfOperation | 2009 ⓘ |
| operatedBy |
High Energy Accelerator Research Organization
ⓘ
JAEA ⓘ
linked to:
Japan Atomic Energy Agency
Japan Atomic Energy Agency ⓘ KEK ⓘ |
| primaryPurpose | high-intensity proton acceleration ⓘ |
| provides |
hadron beams
ⓘ
muon beams ⓘ neutrino beams ⓘ neutron beams ⓘ |
| researchField |
hadron physics
ⓘ
life sciences ⓘ materials science ⓘ muon science ⓘ neutrino physics ⓘ neutron science ⓘ nuclear physics ⓘ particle physics ⓘ |
| sendsNeutrinoBeamTo |
Super-Kamiokande
ⓘ
linked to:
Super-Kamiokande neutrino observatory
|
| usedFor |
applied materials research
ⓘ
fundamental physics research ⓘ life science experiments ⓘ |
| usesAcceleratorType |
linear accelerator
ⓘ
proton synchrotron ⓘ |
| website | https://j-parc.jp/ ⓘ |
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: J-PARC Description of subject: 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.
Referenced by (16)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: J-PARC
High Energy Accelerator Research Organization
→
hasFacility
→
J-PARC (Japan Proton Accelerator Research Complex)
ⓘ
subject linked to:
High Energy Accelerator Research Organization (KEK)
linked to: J-PARC
subject linked to:
High Energy Accelerator Research Organization (KEK)
linked to: J-PARC
linked to: J-PARC
linked to: J-PARC
linked to: J-PARC
linked to: J-PARC