## Journal Club

Seminar Room

### Thursday 10th of February, 2022

presented by Guilherme Guedes

# Simple Rules for Evanescent Operators in One-Loop Basis Transformations

Basis transformations often involve Fierz and other relations which are only valid in D=4 dimensions. In general D space-time dimensions however, evanescent operators have to be introduced, in order to preserve such identities. Such evanescent operators contribute to one-loop basis transformations as well as to two-loop renormalization group running. We present a simple procedure on how to systematically change basis at the one-loop level by obtaining shifts due to evanescent operators. As an example we apply this method to derive the one-loop basis transformation from the BMU basis useful for NLO QCD calculations, to the JMS basis used in the matching to the SMEFT.

presented by Javi Fuentes

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