11–13 Sept 2024
Institute for Nuclear Physics -- Polish Academy of Sciences (IFJ PAN)
Europe/Warsaw timezone

Functional renormalisation of UV-safe gauge theories coupled to matter

12 Sept 2024, 13:20
20m
Aula (Institute for Nuclear Physics -- Polish Academy of Sciences (IFJ PAN))

Aula

Institute for Nuclear Physics -- Polish Academy of Sciences (IFJ PAN)

Institute of Nuclear Physics -- Polish Academy of Sciences (IFJ PAN) ul. Radzikowskiego 152, 31-342 Kraków
Talk Particle Physics [Early Career] ECR

Speaker

Daniele Rizzo (National Center for Nuclear Research (NCBJ), Warsaw, Poland)

Description

Certain types of large-$N$ gauge theories coupled to matter offer interacting UV fixed points that are under strict perturbative control, beyond the paradigm of asymptotic freedom. In this work, we derive and investigate functional RG equations for the quantum effective potential of the theory to leading order in a derivative expansion. We thereby find the RG flows, fixed points, and scaling dimensions of infinitely many canonically irrelevant interaction monomials to leading order in the small Veneziano parameter. We also find that results can be resummed into closed expressions. Implications for vacuum stability and the size of the conformal window, links with RG studies in the MS bar scheme, and extensions towards larger Veneziano parameters are indicated.

Primary authors

Daniel Litim (University of Sussex (GB)) Daniele Rizzo (National Center for Nuclear Research (NCBJ), Warsaw, Poland)

Presentation materials