The top-quark decay vertex in standard model extensions

被引：0
作者：
Werner Bernreuther
Patrick González
Martin Wiebusch
机构：
[1] RWTH Aachen University,Institut für Theoretische Physik
来源：
The European Physical Journal C | 2009年 / 60卷
关键词：
11.30.Er; 12.60.-i; 14.65.Ha;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
New physics interactions can affect the strength and structure of the tbW vertex. We investigate the magnitudes and phases of “anomalous” contributions to this vertex in a two-Higgs doublet and the minimal supersymmetric extension of the standard model, and in a top-color assisted technicolor (TC2) model. While the magnitudes of the anomalous couplings remain below 1 percent in the first two models, TC2 interactions can reduce the left-chiral coupling fL by several percent.
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页码：197 / 211
页数：14
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