Benjamin Pecjak (Durham): EW corrections in SMEFT

Dienstag, 19. März 2024 16:15

Ort: Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock

Standard Model Effective Field Theory (SMEFT) is not only a practical tool for searching for small deviations from SM expectations in data, but is also a well-defined quantum field theory.
In this talk I focus on interesting field-theoretical features involved in calculations of EW corrections in SMEFT. Compared to the SM, these include subtleties in Higgs-Z mixing, electric charge renormalisation, gauge fixing, and the treatment of tadpoles when using hybrid renormalisation schemes where some parameters are renormalised in the MS-bar scheme and some in the on-shell scheme.


Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock