Direct CP violation in B decays in R-parity violating models

Abstract

In the standard model, CP asymmetries in the $B^{\pm }\to {\pi }^{\pm }K$ channels are about 2% based on perturbative calculation. Rescattering effects might enhance it to at most (20-25)%. We show that lepton-number-violating ${\lambda }^{\prime }$ couplings in supersymmetric models are capable of enhancing it to as large as 100%. Upcoming B factories will test this scenario.

7 pages, Latex, requires iopconf1.sty which is included. Invited talk presented at `Beyond the Desert 1999', Castle Ringberg, Tegernsee, Germany, 6-12 June 1999