Determination of. alpha. sub s from a differential jet multiplicity distribution at SLC and PEP
Conference
·
OSTI ID:6803311
We measure the differential jet multiplicity distribution in e{sup {plus}}e{sup {minus}} annihilation with the Mark 2 detector. This distribution is compared with the second order QCD prediction and {alpha}{sub s} is determined to be 0.123 {plus minus} 0.009 {plus minus} 0.005 at {radical}s {approximately} M{sub Z} (at SLC) and 0.149 {plus minus} 0.002 {plus minus} 0.007 at {radical}s = 29 GeV (at PEP). The running of {alpha}{sub s} between these two center of mass energies is consistent with the QCD prediction. The Q{sup 2} dependence of the {Lambda}{sub {ovr MS}} determination is also discussed. 21 refs., 3 figs.
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (USA)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 6803311
- Report Number(s):
- SLAC-PUB-5247; CONF-900135--16; ON: DE90013573
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645204* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATOR FACILITIES
ACCELERATORS
ALGORITHMS
BASIC INTERACTIONS
COUPLING CONSTANTS
ELECTRON-POSITRON INTERACTIONS
INTERACTIONS
JET MODEL
LEPTON-LEPTON INTERACTIONS
LINEAR ACCELERATORS
MATHEMATICAL LOGIC
MATHEMATICAL MODELS
MULTIPLICITY
PARTICLE INTERACTIONS
PARTICLE MODELS
PEP STORAGE RINGS
STANFORD LINEAR COLLIDER
STORAGE RINGS
STRONG INTERACTIONS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATOR FACILITIES
ACCELERATORS
ALGORITHMS
BASIC INTERACTIONS
COUPLING CONSTANTS
ELECTRON-POSITRON INTERACTIONS
INTERACTIONS
JET MODEL
LEPTON-LEPTON INTERACTIONS
LINEAR ACCELERATORS
MATHEMATICAL LOGIC
MATHEMATICAL MODELS
MULTIPLICITY
PARTICLE INTERACTIONS
PARTICLE MODELS
PEP STORAGE RINGS
STANFORD LINEAR COLLIDER
STORAGE RINGS
STRONG INTERACTIONS