First measurement of $\sigma(p\bar{p}) \cdot Br(Z \rightarrow \tau^+$

We present the first measurement of the cross-section for Z production in its decay mode to tau leptons in $p\bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV with D{\O} detector. With the sample corresponding to an integrated luminosity of 226 pb$^{-1}$ we obtain $\sigma \cdot Br(Z \rightarrow \tau^+ \tau^-) = 237 \pm 15 (stat) \pm 18 (sys) \pm 15 (lum)$ pb, in agreement with the standard model prediction. Gained understanding of the $\tau^+\tau^-$ final state at hadronic collider opens up new possibilities for searches for new physics phenomena.