K+ (charged kaon)
E24268
K⁺ (charged kaon) is a positively charged meson containing an up quark and an anti-strange quark, notable for its role in probing weak interactions and testing the Standard Model through rare decay processes.
Aliases (1)
- K⁺ ×49
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
charged kaon
→
meson → pseudoscalar meson → |
| belongsTo |
strange mesons
→
|
| hasAntiquark |
s̄
→
|
| hasBaryonNumber |
0
→
|
| hasChargeConjugateState |
K⁻
→
|
| hasCParity |
not defined
→
|
| hasDecayMode |
μ⁺ ν_μ
→
π⁰ e⁺ ν_e → π⁰ μ⁺ ν_μ → π⁺ π⁰ → π⁺ π⁺ π⁻ → |
| hasDominantDecayBranchingRatio |
≈63.5%
→
|
| hasDominantDecayMode |
μ⁺ ν_μ
→
|
| hasElectricCharge |
+1 e
→
|
| hasGParity |
not defined
→
|
| hasIsospin |
1/2
→
|
| hasIsospinThirdComponent |
+1/2
→
|
| hasLeptonNumber |
0
→
|
| hasLifetimeCategory |
long-lived meson
→
|
| hasMass |
≈493.677 MeV/c²
→
|
| hasMeanLifetime |
≈1.238×10⁻⁸ s
→
|
| hasParity |
-1
→
|
| hasQuantumNumber |
I=1/2
→
J^P=0⁻ → S=+1 → |
| hasQuark |
u
→
|
| hasQuarkContent |
anti-strange quark
→
up quark → |
| hasRestEnergy |
≈493.677 MeV
→
|
| hasSecondLargestDecayBranchingRatio |
π⁺ π⁰
→
|
| hasSpin |
0
→
|
| hasStrangeness |
+1
→
|
| hasSymbol |
K⁺
→
|
| hasValenceQuarks |
u s̄
→
|
| interactsVia |
electromagnetic interaction
→
strong interaction → weak interaction → |
| isAntiparticleOf |
K⁻
→
|
| isDescribedBy |
Standard Model of particle physics
→
|
| isPartOf |
kaon family
→
|
| isProducedIn |
cosmic-ray interactions
→
high-energy hadron collisions → |
| isSubjectOf |
CP-violation studies in kaon sector
→
|
| isUsedIn |
flavor physics experiments
→
rare decay searches → |
| isUsedToProbe |
weak interactions
→
|
| isUsedToTest |
Standard Model
→
|
Referenced by (1)
| Subject (surface form when different) | Predicate |
|---|---|
|
NA62
→
|
studiesParticle |