Abstract
Large higher-order corrections enter the Higgs boson sector of the MSSM via Higgs-boson self-energies. Their effects have to be taken into account for the correct treatment of loop-corrected Higgs-boson mass eigenstates as external (on-shell) or internal particles in Feynman diagrams. We review how the loop corrections, including momentum dependence and imaginary contributions, are correctly taken into account for external (on-shell) Higgs boson and how effective couplings can be derived. The procedures are implemented in the code FeynHiggs2.4.
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Hahn, T., Heinemeyer, S., Hollik, W. et al. Higher-order corrected Higgs bosons in FeynHiggs2.4. Pramana - J Phys 69, 861–869 (2007). https://doi.org/10.1007/s12043-007-0196-0
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DOI: https://doi.org/10.1007/s12043-007-0196-0