LEPTONIC DECAY CONSTANTS OF D-S, AND B-S, MESONS FROM QCD SUM-RULES

被引：14
|
作者：
DOMINGUEZ, CA
PAVER, N
机构：
[1] UNIV TRIESTE,DIPARTIMENTO FIS TEOR,TRIESTE,ITALY
[2] IST NAZL FIS NUCL,TRIESTE,ITALY
来源：
PHYSICS LETTERS B | 1993年 / 318卷 / 04期
关键词：
D O I：
10.1016/0370-2693(93)90465-T
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The leptonic decay constants of D-s and B-s mesons are determined in the framework of relativistic Hilbert moments and Laplace transform QCD sum rules. When normalized to the corresponding sum rules for f(D) and f(B), we obtain the stable results: f(Ds)/f(D) = 1.21 +/- 0.06, and f(Bs)/f(B) = 1.22 +/- 0.02, essentially independent of the type of sum rule and of the value of the heavy quark mass.
引用
收藏
页码：629 / 634
页数：6
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