Towards a NNLO calculation in hadronic heavy hadron production

Jürgen G. Körner, Zakaria Merebashvili, Mikhail Rogal

We calculate the Laurent series expansion up to $\mathcal{O}({\epsilon }^2)$ for all scalar one-loop one-, two-, three- and four-point integrals that are needed in the calculation of hadronic h…