$B\to X_s{\hat{I}}^3$ in minimal supersymmetric standard model with general flavor mixing

Abstract

We present the results of our analysis on $b\to s{\hat{I}}^3$ in the minimal supersymmetric standard model with a general flavor mixing in the squark sector. We identify the next--to--leading order focusing effect, which considerably reduces the gluino contribution to $b\to s{\hat{I}}^3$ relative to the leading order calculation. We illustrate that $BR(B\to X_s{\hat{I}}^3)$ is still very sensitive to the flavor mixing parameters, $\hat{I}{´}_{ll}^d$ and $\hat{I}{´}_{lr}^d$ so that the lower bound for $m_{1/2}$ obtained in the minimal flavor violation can be easily removed even at $\hat{I}¼<0$, while it is rather stable against $\hat{I}{´}_{rr}^d$ and $\hat{I}{´}_{rl}^d$.

8 pages, 14 figures, talk given at the 10th International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY02) June 17-23, 2002, DESY Hamburg