Published 1988
| Version v1
Miscellaneous
On the strong coupling constant αs, determined from e+e- total cross-section data
Description
The published data on quark pair final states in the continuum in e+e- annihilation are analyzed in a self consistent way to study the behaviour of the strong coupling constant, αs and the associated scale parameter ΛMS-bar(4). The best fit results are αs=0.135±0.012±0.010 at s=Q2=1000 GeV2 or from an alternative fit, |αs|=0.137±0.015±0.010. These fits provide a good description of the R continuum from Q2=7 GeV2 all the way through two distinct quark thresholds to Q2=2704 GeV2. By including terms up to 3rd order in αs, it is shown that these 3rd order terms have a considerable effect and that 4th order corrections may be needed. (author). 4 figs., 3 tabs., 27 refs
Additional details
Publishing Information
- Imprint Title
- Hadron interactions
- Imprint Pagination
- 445 p.
- Journal Page Range
- p. 124-137.
- Report number
- INIS-mf--12642
Conference
- Title
- International symposium Hadron interactions - theory and phenomenology.
- Dates
- 26 Jun - 1 Jul 1988.
- Place
- Bechyne (Czechoslovakia).
INIS
- Country of Publication
- Serbia and Montenegro
- Country of Input or Organization
- Serbia and Montenegro
- INIS RN
- 21061021
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference, Numerical Data
- Descriptors DEI
- ANNIHILATION; CORRECTIONS; COUPLING CONSTANTS; ELECTRON-POSITRON INTERACTIONS; GEV RANGE 01-10; GEV RANGE 10-100; HADRONS; PARTICLE PRODUCTION; QUARK MODEL; STRONG INTERACTIONS; THEORETICAL DATA; TOTAL CROSS SECTIONS
- Descriptors DEC
- BASIC INTERACTIONS; COMPOSITE MODELS; CROSS SECTIONS; DATA; ELEMENTARY PARTICLES; ENERGY RANGE; GEV RANGE; INFORMATION; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; MATHEMATICAL MODELS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE MODELS