Measurement of the Strong Coupling alpha s from Four-Jet Observables in e+e- Annihilation
| dc.creator | The OPAL Collaboration | |
| dc.creator | Abbiendi, G. | |
| dc.date | 2006-01-31 | |
| dc.date.accessioned | 2026-07-07T12:24:57Z | |
| dc.date.available | 2026-07-07T12:24:57Z | |
| dc.description | Data from e+e- annihilation into hadrons at centre-of-mass energies between 91 GeV and 209 GeV collected with the OPAL detector at LEP, are used to study the four-jet rate as a function of the Durham algorithm resolution parameter ycut. The four-jet rate is compared to next-to-leading order calculations that include the resummation of large logarithms. The strong coupling measured from the four-jet rate is alphas(Mz0)= 0.1182+-0.0003(stat.)+-0.0015(exp.)+-0.0011(had.)+-0.0012(scale)+-0.0013(mass) in agreement with the world average. Next-to-leading order fits to the D-parameter and thrust minor event-shape observables are also performed for the first time. We find consistent results, but with significantly larger theoretical uncertainties. | |
| dc.description | 25 pages, 15 figures, Submitted to Euro. Phys. J. C | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0601048 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0601048 | |
| dc.identifier | Eur.Phys.J.C47:295-307,2006 | |
| dc.identifier | doi:10.1140/epjc/s2006-02581-y | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/214483 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurement of the Strong Coupling alpha s from Four-Jet Observables in e+e- Annihilation | |
| dc.type | text |