Refinements of the Bottom and Strange MSSM Higgs Yukawa Couplings at NNLO

2017/11/06 by Ghezzi, Margherita, Glaus, Seraina, Müller, Dario +2 · 1 citation
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.1711.02555

Abstract

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 tgβ, we include the subleading terms related to the trilinear Higgs coupling A_b and contributions induced by the electroweak gauge couplings. This calculation has been extended to the NNLO corrections to the MSSM strange-Yukawa coupling. Our analysis leads to residual theoretical uncertainties of the effective Yukawa couplings at the per-cent level.

Cited by

• Modelling b b H production for the LHC at 13.6 TeV

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