Xi- baryon
E676228
The Xi- baryon is a negatively charged strange baryon composed of one down quark and two strange quarks, playing a key role in studies of hyperon structure and weak decays.
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
baryon
ⓘ
hyperon ⓘ |
| belongsToMultiplet | baryon octet NERFINISHED ⓘ |
| decaysVia | weak decay ⓘ |
| hasAlternativeName |
Xi minus
NERFINISHED
ⓘ
Xi- hyperon NERFINISHED ⓘ cascade minus NERFINISHED ⓘ |
| hasBaryonNumber | +1 ⓘ |
| hasChargeConjugate | Xi+ baryon NERFINISHED ⓘ |
| hasCParity | not defined ⓘ |
| hasDiscoveryYear | 1959 ⓘ |
| hasDownQuarkCount | 1 ⓘ |
| hasElectricCharge | -1 e ⓘ |
| hasFamily | Xi baryons NERFINISHED ⓘ |
| hasGParity | not defined ⓘ |
| hasHeavierExcitedStates | Ξ(1530) ⓘ |
| hasIsospin | 1/2 ⓘ |
| hasIsospinProjection | -1/2 ⓘ |
| hasLifetime | approximately 1.64e-10 s ⓘ |
| hasParity | +1 ⓘ |
| hasPDGParticleID | 3312 ⓘ |
| hasPrimaryDecayMode | Λ0 + π- ⓘ |
| hasQuark |
down quark
ⓘ
strange quark ⓘ |
| hasQuarkContent | dss NERFINISHED ⓘ |
| hasRestMass | approximately 1321 MeV/c^2 ⓘ |
| hasRoleIn |
studies of hyperon structure
ⓘ
studies of weak decays ⓘ |
| hasSecondaryDecayChain | Λ0 → p + π- ⓘ |
| hasSpin | 1/2 ⓘ |
| hasStrangeness | -2 ⓘ |
| hasStrangeQuarkCount | 2 ⓘ |
| hasSymbol | Ξ- NERFINISHED ⓘ |
| isColorCharged | true ⓘ |
| isComposedOf | three valence quarks ⓘ |
| isFermion | true ⓘ |
| isGroundStateOf | Xi- family ⓘ |
| isStudiedIn |
hadron spectroscopy
ⓘ
particle physics ⓘ |
| isSubjectOf | hyperon decay experiments ⓘ |
| isUsedToTest |
CP symmetry in baryon decays
ⓘ
flavor SU(3) symmetry ⓘ |
| participatesInInteraction |
electromagnetic interaction
ⓘ
strong interaction ⓘ weak interaction ⓘ |
| wasDiscoveredAt | Brookhaven National Laboratory NERFINISHED ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.