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12–14 Jun 2024
Bologna
Europe/Zurich timezone

Loop-corrected Fierz Identities and Evanescent shifts

12 Jun 2024, 12:30
10m
Aula Prodi - Complesso di S. Giovanni in Monte (Bologna)

Aula Prodi - Complesso di S. Giovanni in Monte

Bologna

Piazza San Giovanni in Monte 2 Bologna, Italy

Speaker

Marko Pesut (University of Zürich)

Description

In Effective Field Theories, evanescent operators are introduced to compensate for the breakdown of four-dimensional Dirac identities (e.g. Fierz Identities) when used in combination with dimensional regularization.

In this talk, we provide an alternative approach where contributions of evanescent operators are viewed as corrections to d=4 Dirac relations. This new perspective not only simplifies computations but provides a clearer understanding of the treatment of these evanescent contributions in the context of NLO change of operator bases.

Primary author

Marko Pesut (University of Zürich)

Presentation materials