Sakata model of hadrons
E601092
The Sakata model of hadrons is an early composite model in particle physics that treated hadrons as bound states of a few fundamental baryons, serving as a precursor to the quark model.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sakata model of hadrons canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6618184 — 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: Sakata model of hadrons Context triple: [Shoichi Sakata, notableIdea, Sakata model of hadrons]
-
A.
Yukawa meson theory
Yukawa meson theory is an early quantum field theory that models the strong nuclear force as being mediated by massive mesons, introducing the concept of a short-range Yukawa potential between nucleons.
-
B.
Gell-Mann–Okubo mass formula
The Gell-Mann–Okubo mass formula is a relation in particle physics that predicts the mass patterns of hadrons within SU(3) flavor symmetry multiplets, providing quantitative support for the quark model and the Eightfold Way classification.
-
C.
Nambu–Jona-Lasinio model
The Nambu–Jona-Lasinio model is a theoretical framework in quantum field theory that illustrates spontaneous chiral symmetry breaking and mass generation for fermions, analogous to mechanisms in superconductivity.
-
D.
quark model
The quark model is a fundamental framework in particle physics that explains hadrons as composite particles made of quarks bound together by the strong force.
-
E.
Kobayashi–Maskawa theory
The Kobayashi–Maskawa theory is a fundamental framework in particle physics that explains CP violation in the Standard Model through a three-generation quark mixing matrix (the CKM matrix).
- 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: Sakata model of hadrons Target entity description: The Sakata model of hadrons is an early composite model in particle physics that treated hadrons as bound states of a few fundamental baryons, serving as a precursor to the quark model.
-
A.
Yukawa meson theory
Yukawa meson theory is an early quantum field theory that models the strong nuclear force as being mediated by massive mesons, introducing the concept of a short-range Yukawa potential between nucleons.
-
B.
Gell-Mann–Okubo mass formula
The Gell-Mann–Okubo mass formula is a relation in particle physics that predicts the mass patterns of hadrons within SU(3) flavor symmetry multiplets, providing quantitative support for the quark model and the Eightfold Way classification.
-
C.
Nambu–Jona-Lasinio model
The Nambu–Jona-Lasinio model is a theoretical framework in quantum field theory that illustrates spontaneous chiral symmetry breaking and mass generation for fermions, analogous to mechanisms in superconductivity.
-
D.
quark model
The quark model is a fundamental framework in particle physics that explains hadrons as composite particles made of quarks bound together by the strong force.
-
E.
Kobayashi–Maskawa theory
The Kobayashi–Maskawa theory is a fundamental framework in particle physics that explains CP violation in the Standard Model through a three-generation quark mixing matrix (the CKM matrix).
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf | particle physics model ⓘ |
| aimsToExplain |
baryon multiplets
ⓘ
hadron spectrum ⓘ meson multiplets ⓘ |
| approximateProposalYear | 1956 ⓘ |
| assumes |
compositeness of mesons
ⓘ
compositeness of non-fundamental baryons ⓘ |
| category |
subatomic physics
ⓘ
theoretical physics ⓘ |
| classificationSchemeFor | hadrons ⓘ |
| countryOfOrigin | Japan ⓘ |
| describes | hadrons as composite systems ⓘ |
| field | particle physics ⓘ |
| fundamentalBaryonSet | p, n, Λ ⓘ |
| hasConceptualSuccessor | constituent quark model NERFINISHED ⓘ |
| historicalContext | pre-QCD era ⓘ |
| historicalInfluenceOn | Japanese school of particle physics ⓘ |
| historicalRole | step toward understanding internal structure of hadrons ⓘ |
| influenced |
development of flavor SU(3)
ⓘ
early SU(3) classification of hadrons ⓘ |
| inspired |
eightfold way
NERFINISHED
ⓘ
quark model ⓘ |
| involves |
baryon number conservation
ⓘ
baryon–antibaryon bound states ⓘ strangeness quantum number ⓘ symmetry multiplets of hadrons ⓘ |
| limitation |
cannot naturally accommodate all observed hadron states
ⓘ
lacks underlying quark degrees of freedom ⓘ |
| motivated | search for more fundamental constituents of hadrons ⓘ |
| namedAfter | Shoichi Sakata NERFINISHED ⓘ |
| precursorOf | quark model NERFINISHED ⓘ |
| proposedBy | Shoichi Sakata NERFINISHED ⓘ |
| publicationDecade | 1950s ⓘ |
| relatedTo | Gell-Mann–Nishijima scheme NERFINISHED ⓘ |
| replacedBy | quark model NERFINISHED ⓘ |
| status | historical ⓘ |
| treatsAsFundamental |
Lambda baryon
NERFINISHED
ⓘ
neutron ⓘ proton ⓘ |
| treatsBaryonsAs | composite states of fundamental baryons ⓘ |
| treatsMesonsAs | bound states of fundamental baryons and antibaryons ⓘ |
| usedToInterpret | early strange particle data ⓘ |
| usesConcept |
SU(3) flavor symmetry precursor
ⓘ
isospin symmetry ⓘ |
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: Sakata model of hadrons Description of subject: The Sakata model of hadrons is an early composite model in particle physics that treated hadrons as bound states of a few fundamental baryons, serving as a precursor to the quark model.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.