arXiv:hep-ph/9703226·v1·High Energy Physics — Phenomenology
Estimations of Order alpha_s^3 and alpha_s^4 Corrections to Mass-Dependent Observables
K.G. Chetyrkin🇷🇺 · B.A. Kniehl (MPI Munich)🇩🇪 · A. Sirlin (NYU)🇺🇸
Abstract
A simple procedure to estimate O(alpha_s^3) and O(alpha_s^4) corrections to mass-dependent observables is conjectured. The method is tested in a number of cases where the O(alpha_s^3) contribution is exactly known, and reasonable agreement is found.
Comments: 10 pages (Latex)