The rare decays B→K(*)K?(*) and R-parity violating supersymmetry |
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Authors: | RM Wang GR Lu E-K Wang Y-D Yang |
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Institution: | (1) Institute of Particle Physics, Huazhong Normal University, Wuhan, Hubei, 430070, P.R. China;(2) Department of Physics, Henan Normal University, XinXiang, Henan, 453007, P.R. China |
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Abstract: | We study the branching ratios, the direct CP asymmetries in B→K(*)K̄(*) decays and the polarization fractions of B→K*K̄* decays by employing the QCD factorization in the minimal supersymmetric standard model with R-parity violation. We derive
the new upper bounds on the relevant R-parity violating couplings from the latest experimental data of B→K(*)K̄(*), and some of these constraints are stronger than the existing bounds. Using the constrained parameter spaces, we predict
the R-parity violating effects on the other quantities in B→K(*)K̄(*) decays which have not been measured yet. We find that the R-parity violating effects on the branching ratios and the direct
CP asymmetries could be large; nevertheless their effects on the longitudinal polarizations of B→K*K̄* decays are small. Near future experiments can test these predictions and shrink the parameter spaces.
PACS 12.60.Jv; 12.15.Mm; 12.38.Bx; 13.25.Hw |
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