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Lepton flavor violating $Z\to l_il_j$ in flavor-universal topcolor-assisted technicolor

Chongxing Yue·Hong Li·Yanming Zhang·Yong Jia
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Abstract

In the context of flavor-universal topcolor-assisted technicolor (TC2) models, we calculate the lepton flavor violating (LFV) $Z\to l_il_j$ decays. We find that the extra U(1) gauge boson $Z^{\prime}$ can give significant contributions to these LFV processes. With reasonable values of the parameters, the branching ratios of the processes $Z\to τμ$ and $Z\to τe$ can approach the experimental upper limits. The indirect bound on the process $Z\to μe$ can give a severe constraint on the flavor-universal TC2 models.

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Chongxing Yue, Hong Li, Yanming Zhang, Yong Jia. 2002-04-14. Lepton flavor violating $Z\to l_il_j$ in flavor-universal topcolor-assisted technicolor. https://doi.org/10.1016/s0370-2693(02)01832-4

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