SMEFT-Tools 2022

Session

Session

14 Sept 2022, 16:00

University of Zürich

7. Towards a global SMEFT likelihood

Peter Stangl (University of Bern)

14/09/2022, 16:00

I will report on recent developments concerning the Python package smelli, which implements a global likelihood function in the space of dimension-six Wilson coefficients in the Standard Model Effective Field Theory and the Weak Effective Theory above and below the electroweak scale, respectively. This likelihood can serve as a basis either for model-independent fits or for testing dynamical models.

8. SMEFT operators in MadGraph

Ken Mimasu

14/09/2022, 16:45

I will review the status and prospects for the implementation of SMEFT operators in UFO models for MadGraph5_aMC@NLO.

21. HighPT: a tool for Drell-Yan tails beyond the Standard Model

Lukas Allwicher

14/09/2022, 17:30

The high-pT tails in Drell-Yan processes can provide useful complementary information to low-energy and electroweak observables when investigating the flavour structure beyond the Standard Model. The Mathematica package HighPT allows to compute Drell-Yan cross sections for dilepton and monolepton final states at the LHC. The observables can be computed at tree-level in the SMEFT, including the...

11. Finite counterterms in chiral gauge theories

Luca Vecchi

15/09/2022, 16:00

We discuss the finite one-loop counterterm required to restore the Ward Identities broken by the regularization scheme in chiral gauge theories. As a concrete application, we work out the finite counterterm in the Standard Model, within dimensional regularization and the Breitenlohner-Maison-'t Hooft-Veltman prescription for the $\gamma_5$ matrix.

18. Lepton Flavour Violation in the SMEFT

Marco Ardu

15/09/2022, 16:45

I will discuss an Effective Field Theory parametrisation of Lepton Flavour Violation (LFV). I will present a bottom-up analysis of LFV observables in WET and SMEFT, and I will discuss the challenges that the SMEFT calculations present.