The asymmetry between matter and antimatter remains one of the greatest puzzles in particle physics and cosmology. The Standard Model of particle physics describes all known particles and their interactions and is in perfect agreement with many experimental tests. It can, however, not explain why everything in our universe – galaxies, planets, people – consists of matter and not of antimatter. New physics beyond the Standard Model is necessary to understand the baryogenesis process, that is, the creation of the matter- antimatter asymmetry. Electroweak baryogenesis is an attractive framework to generate the asymmetry, as it takes place at a relatively low scale. As a consequence, the new physics that is necessary for successful baryogenesis can be probed in experiments.
There will be a lot of progress on the experimental side in the coming years: the Large Hadron Collider will be updated, the measurements of electric dipole moments are improving, and gravitational wave observatories are an exciting upcoming probe. In this workshop, we want to assess the feasibility of the framework from the theory side, by discussing the most promising models, and improving the accuracy of the computations of e.g. the bubble wall velocity and the transport equations.
This is the rescheduled workshop of 2020