USMEFT as a tool for discovery of universal new physics at high luminosity LHC

TL;DR

This paper demonstrates that the Universal SMEFT framework can effectively identify and characterize new physics in dilepton production at the high-luminosity LHC, with stable results across different EFT truncations.

Contribution

It introduces a method using the Universal SMEFT to discover and analyze universal new physics in Drell-Yan processes at the LHC.

Findings

Fits can unveil new physics and extract its properties accurately.

Results are stable regardless of EFT truncation order.

Pseudo-data analysis supports the method's effectiveness.

Abstract

We analyze the potential of the Universal SMEFT as a tool to study universal new physics in the neutral and charged Drell-Yan processes at the high-luminosity LHC. In order to do so, we generated pseudo-data containing the contributions of beyond the standard model vector bosons to the dilepton production. Our results show that fits with the minimal theoretical bias can be used not only to unveil the existence of new physics but also to accurately extract its properties. Moreover, the results are rather stable with respect to the order of truncation of the effective field theory.