Collider Phenomenology for Supersymmetry at Large $tan\beta$

Abstract

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 SUSY may be detectable via new signals involving $\tau$'s or $b$'s in the final state.

Comments: 8 page REVTEX file with 2 EPS figures