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.
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
NERFINISHED
ⓘ
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 NERFINISHED ⓘ |
| extendedTo | three-generation quark mixing ⓘ |
| field |
particle physics
ⓘ
weak interaction theory ⓘ |
| frameworkFor | classification of weak hadronic decays ⓘ |
| generalizedBy | Cabibbo–Kobayashi–Maskawa matrix NERFINISHED ⓘ |
| 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 NERFINISHED ⓘ |
| predicts | universality of weak interactions up to mixing angle ⓘ |
| proposedBy | Nicola Cabibbo NERFINISHED ⓘ |
| quarkBasis |
mass eigenstates of down-type quarks
ⓘ
weak interaction eigenstates ⓘ |
| relatedConcept |
Cabibbo-favored decay
NERFINISHED
ⓘ
Cabibbo-suppressed decay NERFINISHED ⓘ doubly Cabibbo-suppressed decay ⓘ |
| relatedTo |
CP violation via its CKM generalization
ⓘ
SU(3) flavor symmetry ⓘ |
| typicalCabibboAngleValue |
approximately 13 degrees
GENERATED
ⓘ
sin θ_C ≈ 0.22 GENERATED ⓘ |
| usesConcept |
flavor eigenstate
ⓘ
mass eigenstate ⓘ unitary transformation between quark flavors ⓘ weak charged current ⓘ |
| usesParameter | Cabibbo angle NERFINISHED ⓘ |
| yearProposed | 1963 ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.