a/c Theorem: Old and New Results

by Hugh Osborn (DAMTP, Cambridge)

Wednesday 22 Apr 2015, 14:30 → 15:30 Europe/Berlin

build. 2a, SR 2 (DESY Hamburg)

The a-theorem and its role in quantum field theories is reviewed. The approach to a proof for four dimensional theories based in introducing a dilaton is described with a view to analysing possible weaknesses. Some comments on higher dimensions are also made.