Higgs boson decay to top quarks at O(alpha(2)(s))

被引：35
|
作者：
Harlander, R [1 ]
Steinhauser, M [1 ]
机构：
[1] MAX PLANCK INST PHYS & ASTROPHYS, WERNER HEISENBERG INST, D-80805 MUNICH, GERMANY
来源：
PHYSICAL REVIEW D | 1997年 / 56卷 / 07期
关键词：
D O I：
10.1103/PhysRevD.56.3980
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Three-loop corrections to the scalar and pseudoscalar current correlator are calculated. By applying the large momentum, expansion mass terms up to order (m(2)/q(2))(4) are evaluated analytically. As an application O(alpha(s)(2)) corrections to the decay of a scalar and pseudoscalar Higgs boson into top quarks are considered. It is shown that for a Higgs mass dot far above the <t(t)over bar> threshold these higher order mass corrections are necessary to get reliable results.
引用
收藏
页码：3980 / 3990
页数：11
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