Cabibbo–Kobayashi–Maskawa matrix
E234496
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.
All labels observed (5)
| Label | Occurrences |
|---|---|
| CKM matrix | 6 |
| Cabibbo–Kobayashi–Maskawa matrix canonical | 6 |
| Jarlskog invariant | 2 |
| Cabibbo angle | 1 |
| Cabibbo–Kobayashi–Maskawa theory | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2104950 — 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.
Target entity: Cabibbo–Kobayashi–Maskawa matrix Context triple: [Toshihide Maskawa, knownFor, Cabibbo–Kobayashi–Maskawa matrix]
-
A.
Gell-Mann–Nishijima formula
The Gell-Mann–Nishijima formula is a key relation in particle physics that connects a particle’s electric charge to its isospin and hypercharge, helping classify hadrons within the quark model.
-
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.
Gell-Mann matrices
Gell-Mann matrices are a set of eight 3×3 traceless Hermitian matrices that serve as the generators of the SU(3) Lie algebra in quantum chromodynamics and other areas of particle physics.
-
D.
Weinberg angle
The Weinberg angle, also known as the weak mixing angle, is a fundamental parameter in the electroweak theory that quantifies the mixing of electromagnetic and weak forces and determines the relative strengths of their interactions.
-
E.
Salam–Weinberg model
The Salam–Weinberg model is the electroweak theory that unifies the electromagnetic and weak nuclear forces within the Standard Model of particle physics.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Cabibbo–Kobayashi–Maskawa matrix Target entity description: 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.
-
A.
Gell-Mann–Nishijima formula
The Gell-Mann–Nishijima formula is a key relation in particle physics that connects a particle’s electric charge to its isospin and hypercharge, helping classify hadrons within the quark model.
-
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.
Gell-Mann matrices
Gell-Mann matrices are a set of eight 3×3 traceless Hermitian matrices that serve as the generators of the SU(3) Lie algebra in quantum chromodynamics and other areas of particle physics.
-
D.
Weinberg angle
The Weinberg angle, also known as the weak mixing angle, is a fundamental parameter in the electroweak theory that quantifies the mixing of electromagnetic and weak forces and determines the relative strengths of their interactions.
-
E.
Salam–Weinberg model
The Salam–Weinberg model is the electroweak theory that unifies the electromagnetic and weak nuclear forces within the Standard Model of particle physics.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
concept in the Standard Model of particle physics
ⓘ
flavor mixing matrix ⓘ unitary matrix ⓘ |
| accountsFor | CP violation in the quark sector ⓘ |
| appliesTo |
down, strange, bottom quarks
ⓘ
three generations of quarks ⓘ up, charm, top quarks ⓘ |
| constrains | unitarity triangles ⓘ |
| describes |
charged-current weak interaction couplings of quarks
ⓘ
quark flavor mixing ⓘ quark mixing in weak interactions ⓘ |
| generalizes | Cabibbo angle description of quark mixing ⓘ |
| hasApproximateMagnitudePattern |
|V_cb|, |V_ts| of order 0.04
ⓘ
|V_ub|, |V_td| much smaller than 1 ⓘ |V_ud|, |V_cs|, |V_tb| close to 1 ⓘ |V_us|, |V_cd| of order 0.22 ⓘ |
| hasDimension | 3×3 ⓘ |
| hasElement |
V_cb
ⓘ
V_cd ⓘ V_cs ⓘ V_tb ⓘ V_td ⓘ V_ts ⓘ V_ub ⓘ V_ud ⓘ V_us ⓘ |
| hasParameter |
one CP-violating phase
ⓘ
three mixing angles ⓘ |
| hasParameterization |
Wolfenstein parameterization
ⓘ
standard PDG parameterization ⓘ |
| hasProperty |
complex phases
ⓘ
nontrivial CP-violating phase ⓘ unitarity ⓘ |
| introducedBy |
Makoto Kobayashi
NERFINISHED
ⓘ
Nicola Cabibbo ⓘ Toshihide Maskawa ⓘ |
| namedAfter |
Makoto Kobayashi
NERFINISHED
ⓘ
Nicola Cabibbo ⓘ Toshihide Maskawa ⓘ |
| partOf |
Standard Model
ⓘ
surface form:
Standard Model of particle physics
|
| relatedTo |
Cabibbo–Kobayashi–Maskawa matrix
self-linksurface differs
ⓘ
surface form:
Jarlskog invariant
|
| relates |
down-type quarks
ⓘ
mass eigenstates of quarks ⓘ up-type quarks ⓘ weak interaction eigenstates of quarks ⓘ |
| symbol | V_CKM ⓘ |
| usedIn |
B meson physics
ⓘ
D meson physics ⓘ K meson physics ⓘ calculation of weak decay rates of hadrons ⓘ |
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.
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.
Subject: Cabibbo–Kobayashi–Maskawa matrix Description of subject: 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.
Referenced by (16)
Full triples — surface form annotated when it differs from this entity's canonical label.