Title: Precision theory for high energy collider physics
Abstract: Benchmark cross sections are measured to high accuracy at the LHC. They provide in-depth information on the underlying particle dynamics, and they can be used for precision determinations of Standard Model parameters and in indirect searches for new physics effects. To match the quality of the experimental data, equally precise theory predictions are needed, which are obtained by going to high orders in perturbation theory. We describe techniques and recent results for precision calculations and discuss their impact for particle phenomenology.