Precision Physics in Finite and Infinite Volume

The Standard Model (SM) of particle physics has had great success in its many predictions, but in certain casesthere appears to be tension with experimental measurements.

These discrepancies could be hints of physicshitherto unknown, so it is of great importance to discover all flaws in the model.

In this three-year project I willdo timely and ambitious low-energy SM calculations needed for precision tests that in the future can guide in thesearch for a new model.This project is divided in two areas.

The first focusses on flavour physics where quark interactions lead tocharge-parity violation, a phenomenon connected to the matter-antimatter asymmetry of the Universe.

I willhere study kaon decays using state-of-the art numerical lattice simulations, performed in a finite-volumespacetime, including electromagnetic corrections. A major focus point will be how to analytically convert thefinite-volume lattice results to a physical prediction.

A two-year visit to the University of Edinburgh is planned forthis part, where I will benefit greatly from the local expertise on numerical lattice studies.

This will expand theresearch span of the host of this project, Lund University.The second focus area concerns the muon magnetic moment for which a possible discrepancy with experimentshas been discovered.

The main focus here will be on analytical calculations to reduce the error on the SMprediction, and this will be performed in collaboration with Edinburgh and Lund.