Collider Phenomenology for Supersymmetry with Largetanβ

If the parameter $\tan \beta$ of the minimal supersymmetric model is large, then $b$ and $\tau$ Yukawa interactions are important. These can significantly modify the masses and decays of sparticles. We describe new calculations which allow a reliable exploration of large $\tan \beta$ values, and discuss implications for collider experiments. For large values of $\tan \beta$, charginos and neutralinos may dominantly decay to $\tau$ leptons or $b$ quarks. The usual cross sections for multilepton signatures may be greatly reduced, but supersymmetry may be detectable via new signals involving $\tau$'s or $b$'s in the final state.