A DERIVATION OF THE HEAVY QUARK EFFECTIVE LAGRANGIAN FROM QCD

被引:178
作者
MANNEL, T [1 ]
ROBERTS, W [1 ]
RYZAK, Z [1 ]
机构
[1] DESY,W-2000 HAMBURG 52,GERMANY
基金
美国国家科学基金会; 加拿大自然科学与工程研究理事会;
关键词
D O I
10.1016/0550-3213(92)90204-O
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 show how to derive the heavy quark effective theory from QCD by carrying out the usual steps for the construction of an effective theory. Using functional methods we first integrate out heavy degrees of freedom and then give the expansion of the resulting nonlocal action functional in powers of 1/m(Q), m(Q) being the mass of the heavy quark.
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收藏
页码:204 / 217
页数:14
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