LEP
E24275
LEP (Large Electron–Positron Collider) was a major circular particle accelerator at CERN used to study electroweak interactions and precisely measure properties of particles like the Z boson.
Aliases (2)
- LEP experiments ×2
- LEP2 ×1
Statements (54)
| Predicate | Object |
|---|---|
| instanceOf |
circular accelerator
→
collider → electron–positron collider → particle accelerator → |
| abbreviation |
LEP
→
|
| beamType |
electron
→
positron → |
| builtInTunnel |
LHC tunnel
→
|
| collisionType |
electron–positron
→
|
| constructionStartDate |
1983
→
|
| country |
Switzerland
→
|
| decommissioningDate |
2000
→
|
| energyRegime |
W-pair threshold
→
Z-pole → |
| firstBeamDate |
1989
→
|
| fullName |
Large Electron–Positron Collider
→
|
| fundingBody |
CERN member states
→
|
| hostedExperiment |
ALEPH
→
DELPHI → L3 → OPAL → |
| hostLaboratory |
CERN
→
|
| LEP1EnergyRange |
around 91 GeV centre-of-mass
→
|
| LEP2EnergyRange |
up to about 209 GeV centre-of-mass
→
|
| locatedIn |
CERN
→
Geneva region → Meyrin → Switzerland → |
| locatedNear |
French–Swiss border
→
|
| maximumCentreOfMassEnergy |
around 209 GeV
→
|
| measuredNumberOfLightNeutrinoFamilies |
about 3
→
|
| numberOfMainDetectors |
4
→
|
| operationEndDate |
2000
→
|
| operationStartDate |
1989
→
|
| partiallyInCountry |
France
→
|
| phase |
LEP1
→
LEP2 → |
| predecessor |
SPS
→
|
| primaryPhysicsGoal |
precision measurements of W boson properties
→
precision measurements of Z boson properties → study of electroweak interactions → tests of the Standard Model → |
| scientificContribution |
constraints on Higgs boson mass
→
constraints on number of light neutrino families → precision determination of W boson mass → precision determination of Z boson mass → precision determination of Z boson width → searches for new physics beyond the Standard Model → stringent tests of electroweak theory → |
| successor |
Large Hadron Collider
→
|
| tunnelCircumference |
27 kilometres
→
about 17 miles → |
| tunnelDepth |
about 100 metres underground
→
|
| tunnelReusedBy |
LHC
→
|
Referenced by (4)
| Subject (surface form when different) | Predicate |
|---|---|
|
SLD
("LEP experiments")
→
|
comparedWith |
|
Z boson
→
|
measuredAt |
|
LEP
("LEP2")
→
|
phase |
|
Salam–Weinberg model
("LEP experiments")
→
|
testedBy |