MEASUREMENT OF ALPHA(S) USING NLLA-) ANNIHILATION AT ROOT-S = 58.0 GEV(O(ALPHA(2)(S)) IN E(+)E()

Citation
Dy. Kim et al., MEASUREMENT OF ALPHA(S) USING NLLA-) ANNIHILATION AT ROOT-S = 58.0 GEV(O(ALPHA(2)(S)) IN E(+)E(), Physics letters. Section B, 420(1-2), 1998, pp. 233-240
Citations number
17
Categorie Soggetti
Physics
Journal title
ISSN journal
03702693
Volume
420
Issue
1-2
Year of publication
1998
Pages
233 - 240
Database
ISI
SICI code
0370-2693(1998)420:1-2<233:MOAUNA>2.0.ZU;2-K
Abstract
A measurement of the strong coupling constant alpha(s) is presented us ing hadronic events produced in e(+)e(-) annihilations at root s = 58. 0 GeV from the AMY detector at TRISTAN. The measurement is based an co mparisons of the distributions of thrust, heavy jet mass, total jet br oadening, wide jet broadening, and energy-energy correlations with QCD calculations resummed up to next-to-leading-logarithms matched with t he O(alpha(s)(2)) perturbative calculation. Combining the results of t he individual evaluations, we find alpha(s) (58 GeV) = 0.132 +/- 0.006 . (C) 1998 Elsevier Science B.V.