CHARMED SEMILEPTONIC B-MESON EXCLUSIVE DECAYS IN A RELATIVISTIC POTENTIAL MODEL

被引：7
|
作者：
COLANGELO, P [1 ]
NARDULLI, G [1 ]
TEDESCO, L [1 ]
机构：
[1] UNIV BARI,DIPARTMENTO FIS,I-70126 BARI,ITALY
来源：
PHYSICS LETTERS B | 1991年 / 272卷 / 3-4期
关键词：
D O I：
10.1016/0370-2693(91)91841-I
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A QCD-inspired relativistic potential model is applied to the computation of the form factors of the decays B --> Dl-nu and B --> D*l-nu. The value of the Kobayashi-Maskawa matrix element V(cb) is determined (V(cb) congruent-to 0.04), as well as the branching ratios and the asymmetry parameter alpha = 2-GAMMA-L(B --> D*l-nu)/GAMMA-T(B -->D*l-nu)-1. The results are in agreement with the experimental data.
引用
收藏
页码：344 / 352
页数：9
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