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SUSY-electroweak one-loop contributions to Flavour-Changing Higgs-Boson Decays

A. M. Curiel·M. J. Herrero·W. Hollik·F. Merz·S. Penaranda
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Abstract

The SUSY-EW one-loop quantum contributions to flavour-changing MSSM Higgs-boson decays into $b \bar s$ and $s \bar b$ are computed and discussed. We use the full diagrammatic approach that is valid for all $\tan β$ values and do not rely on the mass-insertion approximation for the characteristic flavour-changing parameter. We analyze in full detail the dependence of these flavour-changing partial widths on all the relevant MSSM parameters and also study the non-decoupling behaviour of these widths with the SUSY mass parameters. We find that these contributions are sizable as compared to the SM ones, and together with the SUSY-QCD contributions they can be very efficient as an indirect method in the future search for Supersymmetry.

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A. M. Curiel, M. J. Herrero, W. Hollik, F. Merz, S. Penaranda. 2004-02-11. SUSY-electroweak one-loop contributions to Flavour-Changing Higgs-Boson Decays. https://doi.org/10.1103/physrevd.69.075009

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