Polarization in semileptonic B→Xτ decays

被引：0

作者：

Urban, P ^{[1
]}

机构：

[1] Silesian Univ, Inst Phys, Dept Field Theory & Particle Phys, PL-40007 Katowice, Poland

来源：

ACTA PHYSICA POLONICA B | 1998年 / 29卷 / 05期

关键词：

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Recently the one-loop perturbative QCD correction to the longitudinal polarization of tau lepton in semileptonic B decays has been found. Its smallness suggests that the higher order perturbative corrections are generally insignificant as far as the polarization is concerned. Prompted by the experimental need, I give here the polarization with respect to the W boson direction in Born approximation.

引用

页码：1429 / 1435

页数：7