Role of four-quark operators in the inclusive Lambda(b) decays

被引：45

作者：

Colangelo, P ^{[1
]}

De Fazio, F ^{[1
]}

机构：

[1] UNIV BARI, DIPARTMENTO FIS, BARI, ITALY

来源：

PHYSICS LETTERS B | 1996年 / 387卷 / 02期

关键词：

D O I：

10.1016/0370-2693(96)01049-0

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We compute by QCD sum rules the matrix elements of the relevant four-quark operators appearing in the expression of the Lambda(b) inclusive decay rates at the order 1/m(b)(3). The results suggest that 1/m(b)(3) corrections are not responsible of the observed difference between the lifetime of Lambda(b) and B-d.

引用

页码：371 / 378

页数：8

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