The bound on the mass of the new gauge boson $Z^{\prime}$ from the process $μ\longrightarrow 3e$

Details The bound on the mass of the new gauge boson $Z^{\prime}$ from the process $μ\longrightarrow 3e$ The bound on the mass of the new gauge boson $Z^{\prime}$ from the process $μ\longrightarrow 3e$

2000-11-10

arxiv.org/abs/hep-ph/0011144v1

Phys.Lett. B496 (2000) 89-92

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex file, 9 Pages 2 eps figures. to be published Phys.Lett.B

Scientific paper

10.1016/S0370-2693(00)01257-0

The new gauge boson $Z^{\prime}$ predicted by the strong top dynamical symmetry breaking models has significant contributions to the lepton flavor changing process $\mu\longrightarrow 3e $. We consider the bound on the mass of the new gauge boson $Z^{\prime}$ from the experimental value of the branching ratio $Br(\mu\longrightarrow 3e)$ in the framework of topcolor assisted technicolor models. We find that the precision experimental value of $Br(\mu\longrightarrow 3e)$ gives a severe bound on the $Z^{\prime}$ mass $M_{Z^{\prime}}$. For $k_1 \leq 1$, $M_{Z^{\prime}}$ must be larger than 1.64 $TeV$.

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