CP asymmetries in scalar bottom quark decays

We propose CP asymmetries based on triple product correlations in the decayssbottom_m -> top chargino_j with subsequent decays of top and chargino_j. Forthe subsequent chargino_j decay into a leptonic final state l^- \nuneutralino_1 we consider the three possible decay chains chargino_j -> l^-sneutrino -> l^- \nu neutralino_1, chargino_j -> slepton_n \nu -> l^- \nuneutralino_1 and chargino_j -> W^- neutralino_1 -> l^- \nu neutralino_1. Weconsider two classes of CP asymmetries. In the first class it must be possibleto distinguish between different leptonic chargino_j decay chains, whereas inthe second class this is not necessary. We consider also the 2-body decaychargino_j -> W^- neutralino_1, and we assume that the momentum of the W bosoncan be measured. Our framework is the minimal supersymmetric standard modelwith complex parameters. The proposed CP asymmetries are non-vanishing due tonon-zero phases for the parameters \mu and/or A_b. We present numerical resultsand estimate the observability of these CP asymmetries.Comment: 27 page