Impact of CP phases on the search for top and bottom squarks

Abstract

We study the decays of top squarks (~t_{1,2}) and bottom squarks (~b_{1,2}) in the Minimal Supersymmetric Standard Model (MSSM) with complex parameters A_t, A_b, mu and M_1. We show that including the corresponding phases strongly affects the branching ratios of ~t_{1,2} and ~b_{1,2} decays in a large domain of the MSSM parameter space. This could have an important impact on the search for ~t_{1,2} and ~b_{1,2} and the determination of the underlying MSSM parameters at future colliders.

6 pages, 1 figure, Invited talk presented by K. Hidaka in The 12th International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY04), June 17-23, 2004, Tsukuba, Japan