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- Title
The measurement of ... from event shapes with the DELPHI detector at the highest LEP energies.
- Authors
Abdallah, J.; Abreu, P.; Adam, W.; Adzic, P.; Albrecht, I.; Alderweireld, T.; Alemany-Fernandez, R.; Allmendinger, T.; Allport, P.; Amaldi, U.; Amapane, N.; Amato, S.; Anashkin, E.; Andreazza, A.; Andringa, S.; Anjos, N.; Antilogus, P.; Apel, W-D.; Arnoud, Y.; Ask, S.
- Abstract
Hadronic event shape distributions are determined from data in e+e- collisions between 183 and 207 GeV. From these the strong coupling α3 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.
- Subjects
HADRONS; PARTICLES (Nuclear physics); PARTONS; COUPLING constants; NUCLEAR physics; ELECTRIC generators
- Publication
European Physical Journal C -- Particles & Fields, 2004, Vol 37, Issue 1, p1
- ISSN
1434-6044
- Publication type
Article
- DOI
10.1140/epjc/s2004-01889-x