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

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

2003-07-09

arxiv.org/abs/hep-ph/0307126v2

Eur.Phys.J. C32 (2004) 245-252

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages,4 ps files, to appear in EPJC

Scientific paper

10.1140/epjc/s2003-01391-1

In supersymmetric see-saw model, the large flavor mixings of sleptons induce the lepton flavor violating (LFV) interactions $\ell_I \bar\ell_J V$ ($V=\gamma, Z$), 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 $\ell_J\to\ell_I\gamma$, these LFV $Z$-decays are found to be sizable, among which the largest-rate channel $Z\to \tau \bar{\mu}$ can ocuur with a branching ratio of $10^{-8}$ and may be accessible at the LHC or GiagZ experiment.

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