Determination of alpha_s(M_Z^2) from hadronic event shape observables in e+e- annihilation
High Energy Physics - Experiment
2007-05-23 v1
Abstract
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.
Keywords
Cite
@article{arxiv.hep-ex/9612008,
title = {Determination of alpha_s(M_Z^2) from hadronic event shape observables in e+e- annihilation},
author = {P. N. Burrows},
journal= {arXiv preprint arXiv:hep-ex/9612008},
year = {2007}
}
Comments
9 pages and 2 figures in eps format. tar-ed, gzip-ed and uuencode-ed. To appear in proceedings ICHEP96.