QCD CORRECTIONS TO THE CHARGED-HIGGS-BOSON DECAY OF A HEAVY TOP QUARK

被引：21
|
作者：
LIU, J [1 ]
YAO, YP [1 ]
机构：
[1] UNIV MICHIGAN,RANDALL LAB PHYS,ANN ARBOR,MI 48109
来源：
PHYSICAL REVIEW D | 1992年 / 46卷 / 11期
关键词：
D O I：
10.1103/PhysRevD.46.5196
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
It is shown that up to an overall scale the lowest-older QCD corrections to t --> H+b and to t --> W+b are the same in the heavy-top-quark limit. Asymptotically, they are given by - (4alpha(s)/3pi) [pi2/3 - 5/4], resulting in a reduction in the decay rate by about 9%, rather than 6% reported previously in the literature. This is verified explicitly by an analytic calculation. The application of the equivalence theorem to this process is also discussed.
引用
收藏
页码：5196 / 5199
页数：4
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