EXTRACTING ALPHA(S) FROM ELECTRON-POSITRON ANNIHILATION AROUND 10 GEV

Citation
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
Citations number
18
Categorie Soggetti
Physics, Particles & Fields
ISSN journal
05562821
Volume
56
Issue
5
Year of publication
1997
Pages
3011 - 3018
Database
ISI
SICI code
0556-2821(1997)56:5<3011:EAFEAA>2.0.ZU;2-R
Abstract
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.