Kg. Chetyrkin et al., EXTRACTING ALPHA(S) FROM ELECTRON-POSITRON ANNIHILATION AROUND 10 GEV, Physical review. D. Particles and fields, 56(5), 1997, pp. 3011-3018
The total cross section for electron-positron annihilation into hadron
s is calculated in the region just below the B meson threshold. QCD co
rrections up to third order, quark mass effects, initial state radiati
on, the running of alpha(QED), and the tails of the Y resonances are i
ncluded in the prediction. For a given alpha(s) the prediction is accu
rate to 0.5%. An experimental measurement with the corresponding preci
sion would allow us to determine alpha(s) with a high accuracy at inte
rmediate energies.