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Lepton flavor violating Z-decays in supersymmetric see-saw model

Junjie Cao·Zhaohua Xiong·Jin Min Yang
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Abstract

In supersymmetric see-saw model, the large flavor mixings of sleptons induce the lepton flavor violating (LFV) interactions $\ell_I \bar\ell_J V$ ($V=γ, Z$), which give rise to various LFV processes. In this work we examine the induced LFV decays $Z\to\ell_I \bar\ell_J$. Subject to the constraints from the existing neutrino oscillation data and the experimental bounds on the decays $\ell_J\to\ell_Iγ$, these LFV $Z$-decays are found to be sizable, among which the largest-rate channel $Z\to τ\barμ$ can ocuur with a branching ratio of $10^{-8}$ and may be accessible at the LHC or GiagZ experiment.

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Junjie Cao, Zhaohua Xiong, Jin Min Yang. 2003-10-06. Lepton flavor violating Z-decays in supersymmetric see-saw model. https://doi.org/10.1140/epjc%2Fs2003-01391-1

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