Seminarium Teorii Oddziaływań Elementarnych

Guided by the insight from statistical physics I will argue that if the fundamental theory is finite, the effective theory describing physics below the Planck scale should have a built-in real UV cutoff. Consequently I will describe our recent work on renormalization of gauge theories regularized with the help of a a concrete gauge symmetry breaking momentum cutoff. I will show how the RG appears and leads to the definition of the bare action. Using these results I will speculate on a possible way in which the hierarchy problem might be avoided.