QCD CORRECTIONS TO CHARGED HIGGS-MEDIATED B-]C-TAU-NU DECAY

被引：55

作者：

GROSSMAN, Y

HABER, HE

NIR, Y

机构：

[1] CERN,DIV TH,CH-1211 GENEVA 23,SWITZERLAND

[2] UNIV CALIF SANTA CRUZ,INST PARTICLE PHYS,SANTA CRUZ,CA 95064

来源：

PHYSICS LETTERS B | 1995年 / 357卷 / 04期

关键词：

D O I：

10.1016/0370-2693(95)00946-I

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate the O(alpha(s)) corrections to the charged Higgs mediated inclusive semi-tauonic B decay. By working in the Landau gauge, we demonstrate how to obtain the charged Higgs contributions (both direct and interference terms) from the known QCD corrections to t --> bH(+). Combining our results with O(1/m(b)(2)) corrections to the spectator model and comparing the theoretical prediction with the recent experimental measurements, we find a model-independent 2 sigma upper bound on the ratio of Higgs vacuum expectation values, tan beta < 0.52 (m(H)/1 GeV).

引用

页码：630 / 636

页数：7

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