From Models to SMEFT and Back?

TL;DR

This paper performs a comprehensive global analysis of the Higgs and electroweak sectors within the SMEFT framework, matched to a specific UV model, emphasizing the importance of one-loop matching and theory uncertainties.

Contribution

It introduces a one-loop matching of SMEFT to a triplet extension UV model using functional methods, highlighting the interplay between model-specific and effective field theory analyses.

Findings

Demonstrates the impact of one-loop matching on SMEFT parameters.

Highlights the role of theory uncertainties in global fits.

Shows the complementarity between SMEFT and UV model analyses.

Abstract

We present a global analysis of the Higgs and electroweak sector, in the SMEFT framework and matched to a UV-completion. As the UV-model we use the triplet extension of the electroweak gauge sector. The matching is performed at one loop, employing functional methods. In the SFitter analysis, we pay particular attention to theory uncertainties arising from the matching. Our results highlight the complementarity between SMEFT and model-specific analyses.