Effective asymptotic safety and its predictive power: Gauge-Yukawa theories

by Aaron Held (Imperial College London)

Tuesday 7 Jul 2020, 16:00 → 17:30 Europe/Berlin

Scale symmetry, just like any other symmetry, enhances the predictive
power of field theories. Underlying this predictivity, are infrared-attractive Renormalization Group fixed points and associated asymptotically free or safe trajectories. I will give a pedagogical
introduction to these concepts for single fixed points and then discuss effective predictivity in the presence of multiple fixed points. The fixed-point structure of gauge-Yukawa theories will serve as a
sufficiently rich but perturbatively controlled example.