LATTICE IMPLEMENTATION OF THE ISGUR-WISE LIMIT

被引：29

作者：

MANDULA, JE ^{[1
]}

OGILVIE, MC ^{[1
]}

机构：

[1] WASHINGTON UNIV, DEPT PHYS, ST LOUIS, MO 63130 USA

来源：

PHYSICAL REVIEW D | 1992年 / 45卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.45.R2183

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We construct the Isgur-Wise limit of QCD in a form appropriate for measurement by lattice-gauge-theory techniques. The coordinate-space fermion propagator in the presence of a background gauge field has a systematic expansion in powers of the inverse quark mass about the Isgur-Wise limit. The formulation permits a calculation of heavy-quark processes even when the momentum transfers are much larger than the inverse lattice spacing. Applications include semileptonic heavy-quark decay and scattering processes, including the computation of the nonperturbative part of the Isgur-Wise universal function.

引用

页码：R2183 / R2187

页数：5

共 16 条

[1] SPIN-DEPENDENT FORCES IN QUANTUM CHROMODYNAMICS [J].