Z boson
E3755
The Z boson is a neutral elementary particle that mediates the weak nuclear force and plays a central role in the electroweak theory of particle physics.
Aliases (1)
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
elementary particle
→
gauge boson → neutral weak boson → vector boson → |
| associatedWithScientist |
Carlo Rubbia
→
Simon van der Meer → |
| baryonNumber |
0
→
|
| chargeConjugationEigenstate |
yes
→
|
| colorCharge |
0
→
|
| couplesTo |
all charged leptons
→
all neutrino flavors → all quark flavors → |
| cParity |
-1
→
|
| decayMode |
lepton-antilepton pairs
→
neutrino-antineutrino pairs → quark-antiquark pairs → |
| decayWidth |
~2.4952 GeV
→
|
| discoveredAt |
Super Proton Synchrotron
→
|
| discoveredBy |
CERN
→
UA1 experiment → UA2 experiment → |
| discoveryYear |
1983
→
|
| doesNotCoupleTo |
gluon
→
photon → |
| electricCharge |
0
→
|
| gaugeGroup |
SU(2)_L × U(1)_Y
→
|
| interactionMediated |
neutral current interaction
→
weak interaction → |
| isospin |
1
→
|
| isOwnAntiparticle |
true
→
|
| leptonNumber |
0
→
|
| lifetime |
~3.0×10^-25 s
→
|
| mass |
~91.1876 GeV/c^2
→
|
| massUncertainty |
~0.0021 GeV/c^2
→
|
| measuredAt |
LEP
→
SLD → |
| mediates |
flavor-conserving weak interactions
→
|
| namedAfter |
zero electric charge
→
|
| originatesFrom |
mixing of W3 and B gauge fields
→
|
| parity |
-1
→
|
| partOfModel |
Standard Model of particle physics
→
|
| partOfTheory |
electroweak theory
→
|
| productionMechanism |
electron-positron annihilation
→
proton-proton collisions → |
| relatedParticle |
W+ boson
→
W- boson → photon → |
| spin |
1
→
|
| statistics |
boson
→
|
| symbol |
Z
→
|
| usedFor |
precision tests of the Standard Model
→
|
| weakIsospinThirdComponent |
0
→
|
Referenced by (14)
| Subject (surface form when different) | Predicate |
|---|---|
|
Higgs boson
→
Higgs field → Higgs mechanism → |
givesMassTo |
|
SLD
→
UA2 experiment → |
studiedParticle |
|
Standard Model
→
|
containsParticle |
|
W boson
→
|
couplesTo |
|
CERN
→
|
discovered |
|
SU(2)_L
("Z boson (in combination with U(1)_Y)")
→
|
gaugeBosonsAfterSymmetryBreaking |
|
boson
→
|
includesExample |
|
W boson
→
|
isPartnerOf |
|
Drell–Yan processes
→
|
mediatedBy |
|
Standard Model
→
|
predicts |
|
UA1 experiment
→
|
researchArea |