CORRECTIONS OF ORDER O(G(F)M(T)(2)ALPHA(2)(S)) TO THE RHO-PARAMETER

Authors
CHETYRKIN KG KUHN JH STEINHAUSER M
Citation
Kg. Chetyrkin et al., CORRECTIONS OF ORDER O(G(F)M(T)(2)ALPHA(2)(S)) TO THE RHO-PARAMETER, Physics letters. Section B, 351(1-3), 1995, pp. 331-338
Citations number
40
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
351
Issue
1-3
Year of publication
1995
Pages
331 - 338
Database
ISI
SICI code
0370-2693(1995)351:1-3<331:COOOTT>2.0.ZU;2-2
Abstract
The three-loop QCD corrections to the rho parameter from top and botto m quark loops are calculated. The result differs from the one recently calculated by Avdeev et al. As function of the pole mass the numerica l value is given by delta rho = 3G(F)M(1)(2)/8 root 2 pi(2) (1-2.8599 alpha(s)/pi - 14.594(alpha(s)/pi)(2)).