TTP05-07 Pseudo-scalar Higgs production at next-to-leading order SUSY-QCD

The production rate of the CP-odd Higgs boson in the Minimal Supersymmetric Standard Model is evaluated through next-to-leading order in the strong coupling constant. The divergent integrals are regulated using Dimensional Reduction, with a straightforward implementation of $\gamma_5$. The well-known Standard Model result is recovered in this scheme through a cancellation between the quark and squark contributions as the masses of the supersymmetric particles tend to infinity.