Search for High Mass Resonances decaying to $e\mu$, $e\tau$ and $\mu\tau$ at CDF

We present a search for high mass resonances based on 1~$\rm fb^{-1}$ of Tevatron Run II data collected with the CDF detector in $\sqrt{s}$ = $1.96$ TeV proton anti-proton collisions. The search is performed as a blind analysis in final states with two leptons of different flavor, such as $e\mu$, $e\tau$ and $\mu\tau$. We discuss the identification of tau leptons at hadron colliders and assess the sensitivity of the search in several models of physics beyond the Standard Model.