BARYONIC SUM RULES IN THE NEXT-TO-LEADING ORDER IN α<sub>s</sub>

A.A. Ovchinnikov, Levan R. Surguladze

International Journal of Modern Physics A · 1991 · 44 citations · 0 references

Concepts

Abstract

The perturbative corrections of order α s to the coefficient functions of the operator product expansion for the baryonic correlator are calculated. These corrections change considerably the numerical values of the mass and residue for the proton extracted from the sum rules and improve the agreement between the theoretical estimates and experimental data.