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

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

2002-04-14

arxiv.org/abs/hep-ph/0204153v1

Phys.Lett. B536 (2002) 67-71

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex files, 11 pages and 4 figure

Scientific paper

10.1016/S0370-2693(02)01832-4

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 $Z\to \tau\mu$ and $Z\to \tau e$ can approach the experimental upper limits. The indirect bound on the process $Z\to \mu e$ can give a severe constraint on the flavor-universal TC2 models.

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