Speaker
Description
We present the technical methods for the NLO SUSY-QCD corrections
to the production of the pseudoscalar MSSM Higgs boson in the gluon
fusion channel. While the genuine SUSY-QCD corrections have been cal-
culated in the limit of large SUSY particle masses some while ago, the
finite mass effects are unknown. In this talk, I will present the technical
details of our calculation of the NLO SUSY-QCD corrections including the
full mass dependence of the loop particle masses. Since analytic formulae
for the massive two-loop integrals of the virtual corrections are unknown
the calculation is performed numerically. The details of the computation
will be presented including the treatment of the threshold regions for nu-
merical stability by IBP methods. Our consistent renormalization scheme
worked out for the quark/squark sector and applied in the calculation will
be explained in detail.