Search for High-Mass Resonances Decaying into Leptons of Different Flavor

We present a search for high-mass resonances decaying into two leptons of different flavor: $e\mu$, $e\tau$ and $\mu\tau$. These resonances are predicted by several models beyond the Standard Model, such as the R-parity-violating MSSM. The search is based on 1~$\rm fb^{-1}$ of Tevatron Run II data collected with the CDF detector at $\sqrt{s}$ = $1.96$ TeV in proton anti-proton collisions.