B decay and the Y mass

被引：194

作者：

Hoang, AH ^{[1
]}

Ligeti, Z ^{[1
]}

Manohar, AV ^{[1
]}

机构：

[1] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.82.277

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Theoretical predictions for inclusive semileptonic B decay rates are rewritten in terms of the Y(1S) meson mass instead of the b quark mass, using a modified perturbation expansion. This method gives theoretically consistent and phenomenologically useful results. Perturbation theory is well behaved, and the largest theoretical error in the predictions coming from the uncertainty in the quark mass is eliminated. The results are applied to the determination of \V-cb\, \Vub\, and lambda(1).

引用

页码：277 / 280

页数：4

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