Inclusive B-decay spectra and IR renormalons

被引：0

作者：

Gardi, E ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

来源：

CONTINUOUS ADVANCES IN QCD 2004, PROCEEDINGS | 2004年

关键词：

D O I：

10.1142/9789812702326_0012

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

I illustrate the role of infrared renormalons in computing inclusive B-decay spectra. I explain the relation between the leading ambiguity in the definition of Sudakov form factor similar to exp(N Lambda/M) and that of the pole mass, and show how these ambiguities cancel out between the perturbative and non-perturbative components of the b-quark distribution in the meson.

引用

页码：139 / 149

页数：11

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