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arXiv · hep-ph/9610446

Top Decay in Topcolor-Assisted Technicolor

B. Balaji
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Abstract

Conventional technicolor models with light charged technipions ($π^{\pm} _T$) lead to an unacceptably large contribution to $t\ra {π^+_T} b$ decay rate. Topcolor-assisted technicolor models also have additional PGBs called top-pions ($π^{\pm}_t$) 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 $t\ra {π^+_{t,T}} b$ decay rate in such models can be within experimental limits due to a combination of heavy top-pion and small $π_t - π_T$ mixing.

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B. Balaji. 1996-10-22. Top Decay in Topcolor-Assisted Technicolor. https://doi.org/10.1016/s0370-2693(96)01606-1

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