Project

To search for new physics at the Large Hadron Collider (LHC), it is important to have precise theoretical predictions of collider processes. The biggest challenge in this context is the computation of the effect of the strong interaction described by Quantum Chromo-Dynamics (QCD). For sufficiently inclusive observables, the QCD effects can be calculated in an expansion in the strong coupling constant. However, for quantities involving disparate scales, large logarithms of scale ratios can spoil this expansion. The goal of this project is to obtain precision predictions for electroweak boson production processes at the LHC by using effective field theory methods to resum logarithmically enhanced contributions to all orders. In particular, we will improve the theoretical predictions for W, Z and Higgs boson production both at small and at large transverse momentum. A second goal is to extend the effective theory methods to more exclusive observables, in particular to jet cross sections.