TRANSVERSE TAU-POLARIZATION IN INCLUSIVE (B)OVER-BAR-]TAU(NU)OVER-BARX DECAYS

被引：20

作者：

GROSSMAN, Y ^{[1
]}

LIGETI, Z ^{[1
]}

机构：

[1] CALTECH,PASADENA,CA 91125

来源：

PHYSICS LETTERS B | 1995年 / 347卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(95)00070-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate, in the framework of multi Higgs doublet models, the CP violating transverse tau polarization, P-perpendicular to, in inclusive semileptonic B meson decays. We find that P-perpendicular to diverges at O(1/m(b)(2)) of the heavy quark expansion. We discuss the physical reasons for this divergence and show how to regularize it. We find large 1/m(b)(2) corrections that can suppress the CP asymmetry by as much as 30%. The maximal allowed asymmetry is a(CP) similar to 0.34. We discuss how the allowed range is expected to change in the future.

引用

页码：399 / 404

页数：6

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