Synergies of Drell-Yan, top and beauty in global SMEFT fits

TL;DR

This paper performs a comprehensive global fit of Drell-Yan, top, and beauty physics data within the SMEFT framework, linking multiple energy scales to improve bounds on Wilson coefficients.

Contribution

It introduces a combined analysis of diverse flavor and energy sector data using RG evolution and matching, enhancing constraints on SMEFT parameters.

Findings

Combined data sets significantly tighten bounds on Wilson coefficients.

Incorporating low-energy FCNCs improves the sensitivity of the fit.

Connecting different energy scales via RG evolution enhances the analysis.

Abstract

We present a global fit of Drell-Yan, top-quark and beauty-physics data in the Standard Model Effective Field Theory framework using the Minimal Flavor Violation ansatz for the quark-flavor structure. The different energy scales are thereby connected by applying the renormalization group equation and matching onto the Weak Effective Theory in order to incorporate $b\to s$ FCNCs at low energies into the fit. We find that the combination of the different sectors greatly improves the bounds on the Wilson coefficients.