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Huge right-handed current effects in B->K*(K pi)l+l- in supersymmetry
Transverse asymmetries in the decay B->K*(K pi)l+l- are an extremely
sensitive probe of right-handed flavour-changing neutral currents. We show how
to include the contribution from the chiral partner of the electromagnetic
operator on the transverse asymmetries at NLO in QCD factorization. We then
consider supersymmetric models with non-minimal flavour violation in the
down-squark sector. We include all the relevant experimental constraints and
present a numerical formula for B->Xs gamma that takes into account the most
recent NNLO calculations. We show that the flavour-changing parameters of these
models are poorly constrained by present data and allow for large effects on
the transverse asymmetries that we consider.Comment: 12 pages, 4 figures, version to appear on JHE
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