Determination of alpha_s(M_Z^2) from hadronic event shape observables in e+e- annihilation

Details Determination of alpha_s(M_Z^2) from hadronic event shape observables in e+e- annihilation Determination of alpha_s(M_Z^2) from hadronic event shape observables in e+e- annihilation

1996-12-11

arxiv.org/abs/hep-ex/9612008v1

Physics

High Energy Physics

High Energy Physics - Experiment

9 pages and 2 figures in eps format. tar-ed, gzip-ed and uuencode-ed. To appear in proceedings ICHEP96.

Scientific paper

The determination of alpha_s(M_Z^2) using O(alpha_s^2) calculations of hadronic event observables in e+e- annihilation is reviewed. The large scatter among alpha_s(M_Z^2) values determined from different observables may be interpreted as arising from the effect of uncalculated higher-order contributions. The application of `optimised' perturbation theory and Pade approximants in an attempt to reduce this effect is discussed.

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