Shuquan Nie

B → X s l + l − in the left-right supersymmetric model

We analyze the flavor changing neutral current semileptonic decay

b ---> s gamma in the left-right supersymmetric model

\stackrel{\ensuremath{\rightarrow}}{B}{X}_{s}{l}^{+}{l}^{\ensuremath{-}}

Large electric dipole moments of heavy neutrinos

in a fully left-right supersymmetric model. We give explicit expressions for all the amplitudes involved in the process, and compare the numerical results with experimental bounds, in both the constrained case (where the only flavor violation comes from the Cabibbo-Kobayashi-Maskawa matrix) and the unconstrained case (including soft breaking supersymmetry terms). Stringent constraints on the parameter space of the model are obtained. We also include constraints from

ΔMKandεKin the left-right supersymmetric model

\stackrel{\ensuremath{\rightarrow}}{b}s\ensuremath{\gamma}.

b → s in the left-right supersymmetric model

The rare decay

d mixing and the Bd → J/ Ks asymmetry in the left-right supersymmetric model

b \to s \gamma

Chargino contributions to ǫ ' /ǫ in the left-right supersymmetric model

is studied in the left-right supersymmetric model. We give explicit expressions for all the amplitudes associated with the supersymmetric contributions coming from gluinos, charginos and neutralinos in the model to one-loop level. The branching ratio is enhanced significantly compared to the standard model and minimal supersymmetric standard model values by contributions from the right-handed gaugino and squark sector. We give numerical results coming from the leading order contributions. If the only source of flavor violation comes from the CKM matrix, we constrain the scalar fermion-gaugino sector. If intergenerational mixings are allowed in the squark mass matrix, we constrain such supersymmetric sources of flavor violation. The decay

Chargino contributions to ϵ′/ϵ in the left–right supersymmetric model

b \to s \gamma

Chargino contributions to / in the left–right supersymmetric model

sets constraints on the parameters of the model and provides distinguishing signs from other supersymmetric scenarios.