Three-loop anomalous dimension of the heavy-light quark current in HQET

被引：74
|
作者：
Chetyrkin, KG
Grozin, AG
机构：
[1] Univ Freiburg, D-79104 Freiburg, Germany
[2] Univ Karlsruhe, Inst Theoret Teilchenphys, Karlsruhe, Germany
[3] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia
[4] Budker Inst Nucl Phys, Novosibirsk 630090, Russia
来源：
NUCLEAR PHYSICS B | 2003年 / 666卷 / 1-2期
关键词：
heavy quark effective theory; radiative corrections;
D O I：
10.1016/S0550-3213(03)00490-5
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：
The anomalous dimension of the heavy-light quark current in HQET is calculated with three-loop accuracy, as well as the renormalized heavy-quark propagator. The NNL perturbative correction to f(B)/f(D) is obtained. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：289 / 302
页数：14
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