Published September 2004
| Version v1
Journal article
The measurement of αs from event shapes with the DELPHI detector at the highest LEP energies
- 1. Paris-6 Univ. (France). LPNHE
- 2. FCUL, Lisboa (Portugal). LIP
- 3. Oesterreichische Akademie der Wissenschaften, Vienna (Austria). Inst. fuer Hochenergiephysik
Description
Hadronic event shape distributions are determined from data in e+e - collisions between 183 and 207 GeV. From these the strong coupling αs is extracted in O(αs2), NLLA and matched O(αs2)+NLLA theory. Hadronisation corrections evaluated with fragmentation model generators as well as an analytical power ansatz are applied. Comparing these measurements to those obtained at and around MZ allows a combined measurement of αs from all DELPHI data and a test of the energy dependence of the strong coupling. (orig.)
Availability note (English)
Available from: http://dx.doi.org/10.1140/epjc/s2004-01889-xAdditional details
Identifiers
Publishing Information
- Journal Title
- European Physical Journal. C
- Journal Volume
- 37
- Journal Issue
- 1
- Journal Page Range
- p. 1-23
- ISSN
- 1434-6044
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 35088220
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ANNIHILATION; CORRECTIONS; COUPLING CONSTANTS; ELECTRON-POSITRON INTERACTIONS; ENERGY DEPENDENCE; EXPERIMENTAL DATA; GEV RANGE 100-1000; HADRONS; MULTIPLE PRODUCTION; PERTURBATION THEORY; QUANTUM CHROMODYNAMICS; STRONG INTERACTIONS
- Descriptors DEC
- BASIC INTERACTIONS; DATA; ELEMENTARY PARTICLES; ENERGY RANGE; FIELD THEORIES; GEV RANGE; INFORMATION; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; QUANTUM FIELD THEORY
Optional Information
- Collaborations
- DELPHI Collaboration