Asymptotics of the perturbative series for fB*/fB

被引：13

作者：

Campanario, F ^{[1
]}

Grozin, AG ^{[1
]}

Mannel, T ^{[1
]}

机构：

[1] Univ Karlsruhe, Inst Theoret Teilchenphys, Karlsruhe, Germany

来源：

NUCLEAR PHYSICS B | 2003年 / 663卷 / 1-2期

关键词：

heavy quark effective theory; renormalons;

D O I：

10.1016/S0550-3213(03)00354-7

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We investigate the structure of the leading IR renormalon singularity in the QCD/HQET matching coefficients for heavy-light quark currents beyond the large-beta(0) limit. From this result, we derive the large-order behaviour of the perturbative series for these coefficients, and for ratios of meson matrix elements, such as f(B)*/f(B). (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：280 / 318

页数：39

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