O(αs) corrections to polarized top quark decay into a charged Higgs boson:: t(↑)→H++b

被引：0
|
作者：
Kadeer, A. [1 ]
Koerner, J. G. [1 ]
Mauser, M. C. [1 ]
机构：
[1] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany
来源：
EUROPEAN PHYSICAL JOURNAL C | 2008年 / 54卷 / 02期
关键词：
D O I：
10.1140/epjc/s10052-007-0510-5
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We calculate the O(alpha(s)) radiative corrections to polarized top quark decay into a charged Higgs boson and a massive bottom quark in two variants of the two-Higgs-doublet model. The radiative corrections to the polarization asymmetry of the decay may become as large as 25%. We provide analytical formulae for the unpolarized and polarized rates for m(b)not equal 0 and for m(b)=0. For m(b)=0 our closed-form expressions for the unpolarized and polarized rates become rather compact.
引用
收藏
页码：175 / 185
页数：11
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