|
IHEP 99 - 15
| |
|---|---|---|
| A.I. Alekseev | ||
| Nonperturbative Power Corrections in anti-alpha s(q2) of Two-Loop Analytization Procedure | ||
| Protvino, 1999.- p.8, refs.:11. | ||
The analytization procedure which allows one to remove nonphysical singularities of the QCD running coupling constant $\bar\alpha_s(q^2)$ in the infrared region is applied to standard as well as to iterative solutions of the two-loop renormalization group equation. Non-leading at large momentum nonperturbative contributions in $\bar\alpha_s(q^2)$ are obtained in an explicit form. The coefficients of nonperturbative contributions expansions in inverse powers of the squared Euclidean momentum are calculated. For both cases considered there appear convergent at $q^2>\Lambda^2$ power series of negative terms with different dependence on term numbers.
 |
ZIPped PostScript | |
|---|
Preprints'99 list
|
Support team
|
