In the first part (~ 3 lectures) I will discuss the basics of renormalization (basic ideas, renormalized Lagrangian, calculation of one-loop graphs in scalar theory, on-shell and MSbar scheme, renormalization group). In the second part (~ 3 lectures), I will discuss renormalization of QED (power counting, on-shell renormalization, calculation of tensor integrals). If time allows, I will give a brief introduction to infrared divergences. In the exercises, we will learn how to calculate one-loop scalar and tensor integrals, and calculate the renormalization group evolution in a simple scalar theory.
- Lehrende:r: Joachim Moritz Brod
- Lehrende:r: Emmanuel Stamou