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SUMMARY:Evanescent Operators\, Schemes\, and Prescriptions - Marko Pesut (
 Zurich U.)
DTSTART:20250613T150000Z
DTEND:20250613T160000Z
UID:TALK232060@talks.cam.ac.uk
CONTACT:Terry Generet
DESCRIPTION:In the first part of the talk\, I will introduce the notions o
 f evanescent operators\, evanescent schemes\, and prescriptions in the con
 text of higher-order EFT computations using dimensional regularization. Th
 ese operators play a crucial role in both matching and RGE running computa
 tions\, and their treatment is often cumbersome and challenging. In the se
 cond part of the talk\, I will present recent work aimed at simplifying th
 e treatment of evanescent contributions in EFT. More precisely\, I will sh
 ow how their contributions can be interpreted as loop corrections to four-
 dimensional Dirac identities (shifts)\, and how this perspective significa
 ntly simplifies their treatment\, particularly when changing operator base
 s or evanescent schemes.
LOCATION:Ray Dolby Centre\, Seminar Room - North (Floor: 0 A0.019)
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