Cabibbo theory
E815596
Cabibbo theory is a framework in particle physics that describes the mixing of down and strange quarks in weak interactions through a single mixing angle, laying groundwork later generalized by the CKM matrix.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Cabibbo angle | 5 |
| Cabibbo theory of weak interactions | 2 |
| Cabibbo theory canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9689358 — 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: Cabibbo theory Context triple: [Kobayashi–Maskawa theory, relatedTo, Cabibbo theory]
-
A.
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).
-
B.
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.
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C.
Cabibbo–Kobayashi–Maskawa matrix
The Cabibbo–Kobayashi–Maskawa matrix is a fundamental component of the Standard Model of particle physics that describes how quarks change flavor via the weak interaction and accounts for CP violation in the quark sector.
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D.
Kobayashi–Maskawa paper on CP violation (1973)
The Kobayashi–Maskawa paper on CP violation (1973) is a landmark theoretical work that extended the quark model to three generations, providing the mechanism for CP violation in the Standard Model and later underpinning the Nobel Prize in Physics for its authors.
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E.
Coleman–Glashow mass formula
The Coleman–Glashow mass formula is a relation in particle physics that predicts mass differences among members of hadron multiplets by incorporating electromagnetic and symmetry-breaking effects.
- 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: Cabibbo theory Target entity description: Cabibbo theory is a framework in particle physics that describes the mixing of down and strange quarks in weak interactions through a single mixing angle, laying groundwork later generalized by the CKM matrix.
-
A.
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).
-
B.
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.
-
C.
Cabibbo–Kobayashi–Maskawa matrix
The Cabibbo–Kobayashi–Maskawa matrix is a fundamental component of the Standard Model of particle physics that describes how quarks change flavor via the weak interaction and accounts for CP violation in the quark sector.
-
D.
Kobayashi–Maskawa paper on CP violation (1973)
The Kobayashi–Maskawa paper on CP violation (1973) is a landmark theoretical work that extended the quark model to three generations, providing the mechanism for CP violation in the Standard Model and later underpinning the Nobel Prize in Physics for its authors.
-
E.
Coleman–Glashow mass formula
The Coleman–Glashow mass formula is a relation in particle physics that predicts mass differences among members of hadron multiplets by incorporating electromagnetic and symmetry-breaking effects.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
flavor mixing theory
ⓘ
theory in particle physics ⓘ |
| addressesProblem | apparent non-universality of weak coupling in strange decays ⓘ |
| appliesTo |
beta decays of strange particles
ⓘ
charged-current weak interactions ⓘ hadronic weak decays ⓘ |
| assumes | two-generation quark model ⓘ |
| basedOn | SU(2) flavor symmetry ⓘ |
| category |
Standard Model phenomenology
ⓘ
quark flavor physics ⓘ |
| compatibleWith | V−A structure of weak interactions ⓘ |
| concernsQuarks |
down quark
ⓘ
strange quark ⓘ up quark ⓘ |
| describes |
flavor-changing weak interactions of quarks
ⓘ
mixing of down and strange quarks ⓘ |
| explains |
relative rates of nuclear beta decay and hyperon decay
ⓘ
suppression of strangeness-changing weak decays ⓘ |
| extendedBy | Makoto Kobayashi and Toshihide Maskawa ⓘ |
| extendedTo | three-generation quark mixing ⓘ |
| field |
particle physics
ⓘ
weak interaction theory ⓘ |
| frameworkFor | classification of weak hadronic decays ⓘ |
| generalizedBy | Cabibbo–Kobayashi–Maskawa matrix ⓘ |
| historicalImportance | first quantitative model of quark flavor mixing ⓘ |
| influenced |
development of the Standard Model of particle physics
ⓘ
formulation of quark mixing matrices ⓘ |
| interactionType | weak interaction ⓘ |
| introduces | single mixing angle between down and strange quarks ⓘ |
| mathematicalForm | rotation in two-dimensional flavor space ⓘ |
| parameterSymbol | θ_C ⓘ |
| predecessorOf |
CKM matrix
ⓘ
linked to:
Cabibbo–Kobayashi–Maskawa matrix
|
| predicts | universality of weak interactions up to mixing angle ⓘ |
| proposedBy | Nicola Cabibbo ⓘ |
| quarkBasis |
mass eigenstates of down-type quarks
ⓘ
weak interaction eigenstates ⓘ |
| relatedConcept |
Cabibbo-favored decay
ⓘ
Cabibbo-suppressed decay ⓘ doubly Cabibbo-suppressed decay ⓘ |
| relatedTo |
CP violation via its CKM generalization
ⓘ
SU(3) flavor symmetry ⓘ |
| typicalCabibboAngleValue |
approximately 13 degrees
ⓘ
sin θ_C ≈ 0.22 ⓘ |
| usesConcept |
flavor eigenstate
ⓘ
mass eigenstate ⓘ unitary transformation between quark flavors ⓘ weak charged current ⓘ |
| usesParameter |
Cabibbo angle
ⓘ
linked to:
Cabibbo theory
|
| yearProposed | 1963 ⓘ |
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: Cabibbo theory Description of subject: Cabibbo theory is a framework in particle physics that describes the mixing of down and strange quarks in weak interactions through a single mixing angle, laying groundwork later generalized by the CKM matrix.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Cabibbo theory
linked to: Cabibbo theory
linked to: Cabibbo theory
linked to: Cabibbo theory
linked to: Cabibbo theory