Speaker
Anders Eller Thomsen
(University of Bern)
Description
Recent works have observed spurious divergences in the RG functions of several EFTs. I will show the origin of these divergences and how they can be addressed by including non-minimal source counterterms. Some of the divergences are related to ambiguities introduced by the presence of flavor. I will give an account of how the redundancies in the EFT basis give rise to additional, unphysical RG ambiguities that have to be accounted for when, e.g., comparing RG functions obtained through different calculations.
Author
Anders Eller Thomsen
(University of Bern)