V_cs
E815590
V_cs is the element of the Cabibbo–Kobayashi–Maskawa (CKM) quark-mixing matrix that quantifies the weak-interaction coupling between charm and strange quarks.
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
CKM matrix element
ⓘ
quark-mixing matrix element ⓘ |
| appearsIn | Standard Model of particle physics NERFINISHED ⓘ |
| closeTo | cos(Cabibbo angle) ⓘ |
| constrainedBy |
experimental measurements of charm decays
ⓘ
global CKM fits ⓘ |
| couplesQuarkFlavor |
charm quark
ⓘ
strange quark ⓘ |
| dependsOn | CKM parametrization (e.g. Wolfenstein, standard PDG) ⓘ |
| describes | weak-interaction coupling between charm and strange quarks ⓘ |
| dominates | charm to strange charged-current transitions ⓘ |
| elementOf | second generation quark mixing sector ⓘ |
| hasMagnitudeApproximately | 0.973 ⓘ |
| hasMagnitudeLessThan | 1 ⓘ |
| hasMagnitudeUncertaintyApprox | 0.0001–0.0002 ⓘ |
| hasPhase | small CP-violating phase in standard CKM parametrizations ⓘ |
| isComplexNumber | true ⓘ |
| matrixPosition | second row, second column of CKM matrix ⓘ |
| partOf |
CKM matrix
NERFINISHED
ⓘ
Cabibbo–Kobayashi–Maskawa matrix NERFINISHED ⓘ |
| relatedTo | Cabibbo angle NERFINISHED ⓘ |
| satisfies | unitarity constraints of CKM matrix ⓘ |
| suppressesRelativeTo | V_cd in c→d transitions ⓘ |
| symbolOf | |V_cs| for its magnitude ⓘ |
| usedIn |
calculations of charm quark weak decays
ⓘ
leptonic D_s meson decay analyses ⓘ semileptonic D meson decay analyses ⓘ tests of CKM unitarity ⓘ |
| usedToTest |
Standard Model flavor structure
NERFINISHED
ⓘ
lepton–quark universality via charm decays ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.