RADIATIVE-CORRECTIONS TO TOP-QUARK DECAY

被引：82
|
作者：
EILAM, G
MENDEL, RR
MIGNERON, R
SONI, A
机构：
[1] UNIV WESTERN ONTARIO,DEPT APPL MATH,LONDON N6A 5B9,ONTARIO,CANADA
[2] BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973
来源：
PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 24期
关键词：
D O I：
10.1103/PhysRevLett.66.3105
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We calculate all radiative corrections to one-loop order for the main decay of the top quark, t --> b + W, in the standard model, retaining exact dependence on all masses. For m(t) = 150 GeV and M(H) = 100 GeV we find a -2.9% ( -6.9%) correction with a very weak dependence on the Higgs-boson mass, in renormalization schemes that use alpha, G(F), and M(Z) (G(F), M(W), and M(Z) as input parameters. Out of the above results, -8.5% is due to QCD. The m(t), and M(H) dependence is given up to 300 and 1000 GeV, respectively. The inadequacy of a leading m(t) calculation is pointed out.
引用
收藏
页码：3105 / 3108
页数：4
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