Refinements of the Bottom and Strange MSSM Higgs Yukawa Couplings at NNLO.
We extend the already existing two-loop calculation of the effective bottom-Yukawa coupling in the MSSM. In addition to the resummation of the dominant corrections for large values of tg$\beta$, we include the subleading terms induced by the trilinear Higgs coupling $A_b$. This calculation has been extended to the NNLO corrections to the MSSM strange-Yukawa coupling. Our analysis leads to residual theoretical uncertainties at the per-cent level.
Publisher URL: http://arxiv.org/abs/1711.02555
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