Top-quark pair production at 2 loops
Andreas von Manteuffel (Universitaet Zuerich)

At the LHC, top-quark pair production is an important process to test the

Standard Model and search for new physics. For the gluon fusion channel,

I present an analytical calculation of the leading colour and light fermionic

virtual corrections at NNLO in QCD. This includes a discussion of technical

solutions employed in the calculation, such as a fully parallelised computer

program for the reduction of Feynman integrals to master integrals and methods

to solve the master integrals.