W boson
E1916
The W boson is a massive elementary particle that mediates the weak nuclear force and is responsible for processes like beta decay in the Standard Model of particle physics.
All labels observed (7)
| Label | Occurrences |
|---|---|
| W boson canonical | 18 |
| W+ boson | 5 |
| W- boson | 2 |
| Standard Model W bosons | 1 |
| W boson mass | 1 |
| W bosons | 1 |
| W^+ boson | 1 |
Statements (70)
| Predicate | Object |
|---|---|
| instanceOf |
elementary particle
ⓘ
gauge boson ⓘ vector boson ⓘ weak interaction mediator ⓘ |
| constrains | Standard Model parameters ⓘ |
| couplesTo |
Higgs boson
ⓘ
W boson self-link ⓘ Z boson ⓘ left-handed fermions ⓘ leptons ⓘ photon ⓘ quarks ⓘ |
| decaysTo |
lepton + neutrino
ⓘ
quark + antiquark ⓘ |
| doesNotParticipateIn | strong interaction ⓘ |
| hasBranchingRatioToHadrons | about 68% ⓘ |
| hasBranchingRatioToLeptons | about 32% ⓘ |
| hasChargeConjugation | not an eigenstate of C ⓘ |
| hasChargeCurrent | V–A structure ⓘ |
| hasColorCharge | colorless ⓘ |
| hasDiscoveryFacility | Super Proton Synchrotron ⓘ |
| hasElectricCharge |
+1 e
ⓘ
-1 e ⓘ |
| hasHelicity | ±1 ⓘ |
| hasInteraction | weak interaction ⓘ |
| hasIsospin | 1 ⓘ |
| hasMass |
about 1.43×10^-25 kg
ⓘ
about 80.379 GeV/c^2 ⓘ |
| hasNameOrigin | weak force ⓘ |
| hasParity | -1 ⓘ |
| hasRestLifetime | about 3×10^-25 s ⓘ |
| hasSpin | 1 ⓘ |
| hasStatistics | bosonic ⓘ |
| hasSymbol | W ⓘ |
| hasVariant |
W boson
self-linksurface differs
ⓘ
surface form:
W+ boson
W boson self-linksurface differs ⓘ
surface form:
W- boson
|
| hasWeakIsospin | 1 ⓘ |
| hasWidth | about 2.085 GeV ⓘ |
| isChargedCurrentMediator | true ⓘ |
| isComposite | false ⓘ |
| isFundamental | true ⓘ |
| isGaugeBosonOf | SU(2)_L ⓘ |
| isMassive | true ⓘ |
| isPartnerOf | Z boson ⓘ |
| isPartOf | electroweak gauge bosons ⓘ |
| isProducedIn |
electron–positron collisions
ⓘ
proton–antiproton collisions ⓘ proton–proton collisions ⓘ |
| isRelevantFor |
CP violation studies
ⓘ
collider phenomenology ⓘ flavor physics ⓘ |
| isShortLived | true ⓘ |
| isTestedBy | precision electroweak measurements ⓘ |
| mediates | weak nuclear force ⓘ |
| mediatesProcess |
beta decay
ⓘ
lepton flavor changing weak processes ⓘ muon decay ⓘ nuclear beta minus decay ⓘ nuclear beta plus decay ⓘ |
| obeys | Bose–Einstein statistics ⓘ |
| participatesIn | electroweak interaction ⓘ |
| partOf | Standard Model ⓘ |
| wasDiscoveredAt | CERN ⓘ |
| wasDiscoveredBy |
UA1 experiment
ⓘ
UA2 experiment ⓘ |
| wasDiscoveredIn | 1983 ⓘ |
| wasPredictedBy |
Abdus Salam
ⓘ
Sheldon Glashow ⓘ Steven Weinberg ⓘ Standard Model ⓘ
surface form:
electroweak theory
|
Referenced by (29)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
W+ boson
this entity surface form:
W- boson
this entity surface form:
W+ boson
subject surface form:
boson
this entity surface form:
W boson mass
this entity surface form:
W^+ boson
subject surface form:
W− boson
this entity surface form:
W+ boson
subject surface form:
W− boson
this entity surface form:
W+ boson
this entity surface form:
W bosons
this entity surface form:
Standard Model W bosons