Lifetime difference of Bs mesons -: theory status

被引：28

作者：

Beneke, M

Lenz, A

机构：

[1] Rhein Westfal TH Aachen, Inst Theoret Phys, D-52074 Aachen, Germany

[2] Univ Regensburg, Fak Phys, D-93040 Regensburg, Germany

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2001年 / 27卷 / 06期

关键词：

D O I：

10.1088/0954-3899/27/6/319

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We give an update on the lifetime difference of B-s mesons which accounts for recent lattice bag parameter results, and obtain (Delta Gamma/Gamma )B-s = (9.3(-4.6)(+3.4))%. We then review the current theoretical uncertainties and conclude with a pessimistic perspective on further improvements.

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收藏

页码：1219 / 1224

页数：6

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