Lambda baryon
E674922
The Lambda baryon is a neutral strange baryon composed of up, down, and strange quarks, notable for its role in studying weak interactions and hadron structure in particle physics.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
baryon
ⓘ
baryon resonance ⓘ fermion ⓘ |
| belongsTo | baryon octet ⓘ |
| containsQuark |
down quark
ⓘ
strange quark ⓘ up quark ⓘ |
| decaysTo |
pi- meson
ⓘ
proton ⓘ |
| decaysViaInteraction | weak interaction ⓘ |
| hasAntiparticle | anti-Lambda baryon ⓘ |
| hasBaryonNumber | 1 ⓘ |
| hasChargeConjugationParity | not defined (non-self-conjugate) ⓘ |
| hasDiscoveryEra | 1940s ⓘ |
| hasDownQuarkCount | 1 ⓘ |
| hasElectricCharge | 0 e ⓘ |
| hasFamily | strange baryons ⓘ |
| hasHypercharge | 0 ⓘ |
| hasIsospin | 0 ⓘ |
| hasMeanLifetime | ≈2.632×10^-10 s ⓘ |
| hasParity | +1 ⓘ |
| hasPDGID | 3122 ⓘ |
| hasQuarkContent | uds ⓘ |
| hasQuarkModel | three-quark state ⓘ |
| hasQuarkModelClassification | octet baryon ⓘ |
| hasRestMass | ≈1115.683 MeV/c^2 ⓘ |
| hasSpin | 1/2 ⓘ |
| hasStrangeness | -1 ⓘ |
| hasStrangeQuarkCount | 1 ⓘ |
| hasSymbol | Λ ⓘ |
| hasTotalAngularMomentumJ | 1/2 ⓘ |
| hasUpQuarkCount | 1 ⓘ |
| isColorSinglet | true ⓘ |
| isGroundStateOf | Lambda baryon family NERFINISHED ⓘ |
| isNeutral | true ⓘ |
| isStudiedIn |
hadron spectroscopy
ⓘ
particle physics ⓘ weak interaction physics ⓘ |
| isUsedToStudy |
CP violation (indirectly via hyperon decays)
ⓘ
SU(3) flavor symmetry ⓘ baryon structure ⓘ nonleptonic weak decays ⓘ |
| obeysStatistics | Fermi–Dirac statistics NERFINISHED ⓘ |
| participatesInInteraction |
electromagnetic interaction
ⓘ
strong interaction ⓘ weak interaction ⓘ |
| wasFirstObservedIn |
bubble chamber experiments
ⓘ
cosmic ray experiments ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.