2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/141299In this talk, we investigate Lepton Flavor Violating (LFV) tau decay by R-Parity Violating (RPV) operators controlled by a non-Abelian discrete $Q_6$ family symmetry. We assume that only a family symmetry determines the whole flavor structure of a model, and the model indicates specific predictions of LFV tau decay processes by RPV operators. We predict $BR(τ\to 3e)/BR(τ\to 3 μ) \sim 4 m_μ^2/m_τ^2$ in a $Q_6$ family symmetric model.3 pages. Talk given at Summer Institute 2007, Aug. 3-10, 2007, Fuji-Yoshida, JapanHigh Energy Physics - Phenomenologytext