INSTANTON-INDUCED ASYMPTOTICS OF PERTURBATIVE SERIES FOR RE+E--]HADRONS AND LAMBDA-QCD

被引：33

作者：

BALITSKY, II

机构：

[1] Leningrad Nuclear Physics Institute, Gatchina, SU-188

来源：

PHYSICS LETTERS B | 1991年 / 273卷 / 03期

关键词：

D O I：

10.1016/0370-2693(91)91685-O

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The singularity in the Borel representation of R(alpha(s)) due to the instanton-antiinstanton pair is calculated. The effect of this singularity at the numerical values of the first perturbative coefficients is screened by renormalons so we are not able to improve the standard estimation of LAMBDA(QCD) obtained from the behaviour of R(q2) at large q2. On the contrary, at the intermediate q2 approximately 1 GeV2 the instanton role is crucial which corresponds to LAMBDA(MS)BAR congruent-to 220 MeV.

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页码：282 / 291

页数：10

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