Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2005-07-11
Eur.Phys.J.C45:547-568,2006
Physics
High Energy Physics
High Energy Physics - Experiment
40 pages, 17 figures, Submitted to Euro. Phys. J. C
Scientific paper
10.1140/epjc/s2005-02417-4
Hadronic events produced in e+e- collisions by the LEP collider and recorded by the OPAL detector were used to form distributions based on the number of reconstructed jets. The data were collected between 1995 and 2000 and correspond to energies of 91 GeV, 130-136 GeV and 161-209 GeV. The jet rates were determined using four different jet-finding algorithms (Cone, JADE, Durham and Cambridge). The differential two-jet rate and the average jet rate with the Durham and Cambridge algorithms were used to measure alpha(s) in the LEP energy range by fitting an expression in which order alpah_2s calculations were matched to a NLLA prediction and fitted to the data. Combining the measurements at different centre-of-mass energies, the value of alpha_s (Mz) was determined to be alpha(s)(Mz)=0.1177+-0.0006(stat.)+-0.0012$(expt.)+-0.0010(had.)+-0.0032(theo.) \.
Abbiendi Giovanni
The OPAL Collaboration
No associations
LandOfFree
Determination of alpha_s using Jet Rates at LEP with the OPAL detector does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Determination of alpha_s using Jet Rates at LEP with the OPAL detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determination of alpha_s using Jet Rates at LEP with the OPAL detector will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-404468