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Higgs-mediated FCNC in Supersymmetic Models with Large $\tanβ$

C. Hamzaoui·M. Pospelov·M. Toharia
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Abstract

In the supersymmetric models with nontrivial flavour structure in the soft-breaking sector the exchange of neutral Higgses mediates $ΔF=2$ transitions. This mechanism is studied for $ΔS, ΔB=2$ processes and for a generic form of the soft-breaking terms. We find that Higgs-mediated FCNC amplitudes increase very rapidly with $\tanβ$ and can exceed $SUSY$ box contribution by up to two orders of magnitude when $\tanβ\sim m_t/m_b$.

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C. Hamzaoui, M. Pospelov, M. Toharia. 1998-07-13. Higgs-mediated FCNC in Supersymmetic Models with Large $\tanβ$. https://doi.org/10.1103/physrevd.59.095005

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