LEP energy calibration and [ital M][sub [ital Z]]
Conference
·
· AIP Conference Proceedings (American Institute of Physics); (United States)
OSTI ID:5602548
- Deutsches Elektronen-Synchrotron (DESY), Notkestr. 85, 2000 Hamburg 52 (Germany)
This report describes the calibration of the beam energy of the Large Electron-Positron Collider (LEP) at CERN for the 1991 running period. An intensive program of investigations and the utilization of resonant de-polarization of transversely polarized electron beams led to improved measurements of the mass, [ital M][sub [ital Z]], and the width, [Gamma][sub [ital Z]], of the [ital Z][sup 0] boson. The [ital preliminary] results are: [ital M][sub [ital Z]]=(91.187[plus minus]0.0035[plus minus]0.0063) GeV and [Gamma][sub [ital Z]]=(2.492[plus minus]0.0053[plus minus]0.0045) GeV, where the first error is statistical and the second arises from the uncertainties of the energy calibration.
- OSTI ID:
- 5602548
- Report Number(s):
- CONF-920837--
- Conference Information:
- Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Journal Volume: 272:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
662310* -- Weak & Electromagnetic Interactions of Leptons-- (1992-)
662440 -- Properties of Other Particles Including Hypothetical Particles-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
BASIC INTERACTIONS
BEAMS
BOSONS
CALIBRATION
CROSS SECTIONS
DIMENSIONS
ELECTROMAGNETIC INTERACTIONS
ELECTRON BEAMS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
GEV RANGE
GEV RANGE 10-100
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
LEP STORAGE RINGS
LEPTON BEAMS
LEPTON-LEPTON INTERACTIONS
MASS
MATHEMATICAL MODELS
PARTICLE BEAMS
PARTICLE INTERACTIONS
PARTICLE MODELS
POLARIZED BEAMS
STANDARD MODEL
STORAGE RINGS
TIME DEPENDENCE
UNIFIED GAUGE MODELS
WIDTH
Z NEUTRAL BOSONS
662440 -- Properties of Other Particles Including Hypothetical Particles-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
BASIC INTERACTIONS
BEAMS
BOSONS
CALIBRATION
CROSS SECTIONS
DIMENSIONS
ELECTROMAGNETIC INTERACTIONS
ELECTRON BEAMS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
GEV RANGE
GEV RANGE 10-100
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
LEP STORAGE RINGS
LEPTON BEAMS
LEPTON-LEPTON INTERACTIONS
MASS
MATHEMATICAL MODELS
PARTICLE BEAMS
PARTICLE INTERACTIONS
PARTICLE MODELS
POLARIZED BEAMS
STANDARD MODEL
STORAGE RINGS
TIME DEPENDENCE
UNIFIED GAUGE MODELS
WIDTH
Z NEUTRAL BOSONS