Determinations of alpha_S at sqrt{s}= 14 to 44 GeV using Resummed Calculations
Abstract
The strong coupling constant alpha_S is determined using recently reanalysed e+e annihilation data collected by the JADE experiment at sqrt{s}= 14 to 44 GeV. The measurements are based on O(alpha_S**2)+NLLA predictions for various event shape observables. The calculations are found to describe reliably data at the lowest energies of the e+e continuum where nonperturbative contributions become important. The results for alpha_S are in good agreement with the QCD expectation for the running of the strong coupling constant. This is the first determination of alpha_S at sqrt{s}= 14 and 22 GeV based on resummed QCD predictions.
 Publication:

arXiv eprints
 Pub Date:
 May 2002
 arXiv:
 arXiv:hepex/0205014
 Bibcode:
 2002hep.ex....5014M
 Keywords:

 High Energy Physics  Experiment
 EPrint:
 4 pages, 5 .epsfigures, LaTeX 2.09, LaTeX2e, uses moriond.sty (included). Contribution to XXXVIIth Rencontres de Moriond: QCD and High Energy Hadronic Interactions, March 16th  23rd, 2002, Les Arcs, France