Z′ bosons
E129805
Z′ bosons are hypothetical heavy neutral gauge bosons predicted by various extensions of the Standard Model, often associated with additional U(1) symmetries and searched for as resonances in high-energy collider experiments.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Z′ bosons canonical | 1 |
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
beyond Standard Model particle
ⓘ
gauge boson ⓘ hypothetical particle ⓘ neutral gauge boson ⓘ |
| associatedWith |
extended gauge sector
ⓘ
extra U(1) gauge symmetry ⓘ |
| constrainedBy |
LEP measurements
ⓘ
LHC resonance searches ⓘ electroweak precision tests ⓘ |
| couplesTo |
Standard Model fermions
ⓘ
leptons ⓘ quarks ⓘ |
| couplingType |
axial-vector couplings
ⓘ
vector couplings ⓘ |
| decayMode |
electron–positron pairs
ⓘ
muon–antimuon pairs ⓘ neutrino pairs ⓘ quark–antiquark pairs ⓘ tau–antitau pairs ⓘ |
| electricCharge | 0 ⓘ |
| massProperty | heavier than the Standard Model Z boson ⓘ |
| massScale | TeV scale or higher ⓘ |
| mayMixWith |
Z boson
ⓘ
surface form:
Standard Model Z boson
photon ⓘ |
| phenomenology |
modifications of electroweak precision observables
ⓘ
narrow resonance in invariant mass distributions ⓘ possible flavor non-universal couplings ⓘ |
| predictedBy |
E6-inspired models
ⓘ
Grand Unified Theories ⓘ U(1)′ extensions of the Standard Model ⓘ left-right symmetric models ⓘ sequential Standard Model extensions ⓘ string-inspired models ⓘ |
| role | mediator of additional gauge interaction ⓘ |
| searchChannel |
dijet resonances
ⓘ
dilepton resonances ⓘ missing energy plus jets or leptons ⓘ top–antitop resonances ⓘ |
| searchedAt |
ATLAS
ⓘ
surface form:
ATLAS experiment
CMS experiment ⓘ Large Hadron Collider ⓘ Tevatron ⓘ |
| spin | 1 ⓘ |
| statistics | boson ⓘ |
| status | not yet observed experimentally ⓘ |
| theoreticalMotivation |
anomaly cancellation in extended gauge theories
ⓘ
dark sector portals in some models ⓘ unification of forces ⓘ |
| usedToExplain |
anomalies in B-meson decays in some models
ⓘ
possible lepton flavor universality violation in some models ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.