17–24 Jul 2024
Prague
Europe/Prague timezone

Electroweak corrections from Sudakov logarithms in the SMEFT

20 Jul 2024, 17:54
18m
Club E

Club E

Parallel session talk 04. Top Quark and Electroweak Physics Top Quark and Electroweak Physics

Speaker

Claudio Severi (University of Manchester)

Description

Accurate predictions for Standard Model and Beyond the Standard Model phenomena are fundamental to collider experiments. In this context, electroweak corrections, enhanced by Sudakov logarithms, emerge as the dominant higher-order effect at the TeV scale and beyond. We computed Sudakov EW corrections in the high-energy limit for the dimension-6 SMEFT operators that maximally grow with energy. In this talk, I will explore the phenomenology for the illustrative process of top quark pair production at the LHC incorporating these new operators. In particular, I will present the impact of EW corrections on the tails of differential distributions, and address the limitations of applying a simple $k$-factor approach in accurately representing the underlying physics.

Alternate track 03. Beyond the Standard Model
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Authors

Claudio Severi (University of Manchester) Davide Pagani (Universita e INFN, Bologna (IT)) Eleni Vryonidou (University of Manchester (GB)) Hesham El Faham (The University of Manchester) Ken Mimasu (University of Southampton) Marco Zaro (Università degli Studi e INFN Milano (IT))

Presentation materials