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

How this entity was disambiguated

Statements (70)

Predicate Object
instanceOf elementary particle
gauge boson
vector boson
weak interaction mediator
constrains Standard Model parameters
couplesTo Higgs boson
W boson
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
linked to: W boson

W- boson
linked to: 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
electroweak theory
linked to: Standard Model

How these facts were elicited

Referenced by (29)

Full triples — surface form annotated when it differs from this entity's canonical label.

CERN discovered W boson
W boson hasVariant W+ boson
linked to: W boson
W boson hasVariant W- boson
linked to: W boson
W boson couplesTo W boson
Z boson relatedParticle W+ boson
linked to: W boson
Higgs boson givesMassTo W boson
Standard Model predicts W boson
Z boson isRelatedTo W+ boson
subject linked to: Z
linked to: W boson
Z boson isRelatedTo W- boson
subject linked to: Z
linked to: W boson
UA1 experiment researchArea W boson
Higgs field givesMassTo W boson
Higgs mechanism givesMassTo W boson
boson includesExample W boson
DØ detector contributedToMeasurementOf W boson mass
linked to: W boson
Salam–Weinberg model hasGaugeBoson W^+ boson
linked to: W boson
W− boson hasChargeConjugate W+ boson
subject linked to: W^-
linked to: W boson
W− boson isAntiparticleOf W+ boson
subject linked to: W^-
linked to: W boson
W′ bosons areCounterpartOf W bosons
linked to: W boson
W′ bosons areDistinctFrom Standard Model W bosons
linked to: W boson
CDF studied W boson
studied W boson
CDF Collaboration studies W boson
Boson includes W boson