  In low energy SUSY theories exchange of gluino and squark with left-right
mixing can produce a large gluonic dipole interaction. In this paper we study
the effects of this interaction on $B\to K \pi$ using QCD improved
factorization method. The Standard Model predicts a smaller branching ratio for
$B^0 \to \bar K^0 \pi^0$ than experimental measured one. We find that within
the parameter space allowed from $B\to \gamma X_s$ constraint, the SUSY dipole
interaction can enhance this branching ratio to agree with the experimental
measurement. Combining recent data for all the four $\bar B^0 \to K^- \pi^+,
\bar K^0 \pi^0$ and $B^- \to K^- \pi^0, \bar K^0 \pi^-$ decay modes, we find
that the allowed parameter space is reduced significantly compared with that
using $B\to X_s \gamma$ data alone. It is found that even with these
constraints, the predictions for CP violation in these modes can be
dramatically different from those of the SM predictions.

High Energy Physics - Phenomenology