Model-Independent Second-Order Determination of the Strong-Coupling Constant αs
Abstract
With use of the MARK-J detector at s=34.7 GeV 21 000 e+e--->hadron events have been collected. By measurement of the asymmetry in angular energy correlations the strong coupling constant αs=0.13+/-0.01 (statistical)+/-0.02 (systematic) is determined, in complete second order, and independent of the fragmentation models and QCD cutoff values used.
- Publication:
-
Physical Review Letters
- Pub Date:
- June 1983
- DOI:
- 10.1103/PhysRevLett.50.2051
- Bibcode:
- 1983PhRvL..50.2051A
- Keywords:
-
- 13.65.+i;
- 12.35.Eq