Top decay in topcolor-assisted technicolor

被引：25

作者：

Balaji, B

机构：

[1] Physics Department, Boston University, Boston, MA 02215

来源：

PHYSICS LETTERS B | 1997年 / 393卷 / 1-2期

关键词：

model; technicolor; decay; topquark;

D O I：

10.1016/S0370-2693(96)01606-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Conventional technicolor models with light charged technipions (pi(T)(+/-)) lead to an unacceptably large contribution to t --> pi(T)(+)b decay rate. Topcolor-assisted technicolor models also have additional PGBs called top-pions (pi(t)(+/-)) which may contribute to this decay. We study the potentially dangerous mixing of charged top-pion and technipions in toy models of 'natural' topcolor-assisted technicolor. We find that the t --> pi(t,T)(+)b decay rate in such models can be within experimental limits due to a combination of heavy top-pion and small pi(t) --> pi(T) mixing.

引用

页码：89 / 93

页数：5

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