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Flavour changing effects on e^+ e^- -> H b \bar{s}, H \bar{b} s in the MSSM

W. Hollik·S. Penaranda·M. Vogt
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Abstract

Flavour changing effects originating from the exchange of scalar particles in the processes e^+ e^- -> H b \bar{s}, H \bar{b} s, with H = h^0, H^0, A^0, are investigated in the Minimal Supersymmetric Standard Model with non-minimal flavour violation at the one-loop level. The dominating SUSY-QCD contributions with squark--gluino loops are calculated and discussed. We consider the SUSY scenario with non-minimal flavour mixing in the down-type squark-mass matrix. The flavour-changing cross sections are derived, and we discuss the dependence on the MSSM parameters and the strength of flavour mixing. The values for the cross section can reach 10^{-4} pb for the production of the heavy Higgs boson H^0 or A^0, and only 10^{-7} pb for the light Higgs boson h^0. Non-decoupling behaviour occurs for both h^0, H^0 production in the case of a common heavy SUSY mass scale.

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W. Hollik, S. Penaranda, M. Vogt. 2007-07-20. Flavour changing effects on e^+ e^- -> H b \bar{s}, H \bar{b} s in the MSSM. https://doi.org/10.1140/epjc%2Fs2006-02526-6

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