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

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

1998-07-13

arxiv.org/abs/hep-ph/9807350v1

Phys.Rev. D59 (1999) 095005

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, latex, 3 figures

Scientific paper

10.1103/PhysRevD.59.095005

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

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