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

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

2003-12-10

arxiv.org/abs/hep-ph/0312135v2

Phys.Rev. D69 (2004) 075009

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 25 pages, 12 figures. Text improved and References added. Version to appear in Phys.Rev.D

Scientific paper

10.1103/PhysRevD.69.075009

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 $\tan \beta$ 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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