Differential cross-section measurements of the production of four charged leptons in association with two jets using the ATLAS detector

TL;DR

This paper reports precise measurements of four-lepton production with two jets at the LHC, testing the Standard Model and searching for signs of new physics through effective field theory operators.

Contribution

First measurement of differential cross-sections for four-lepton plus two jets production at 13 TeV with ATLAS, probing electroweak and strong interactions and potential new physics.

Findings

Data agrees with Standard Model predictions

Constraints on anomalous weak-boson self-interactions

Enhanced understanding of vector boson scattering processes

Abstract

Differential cross-sections are measured for the production of four charged leptons in association with two jets. These measurements are sensitive to final states in which the jets are produced via the strong interaction as well as to the purely-electroweak vector boson scattering process. The analysis is performed using proton-proton collision data collected by ATLAS at $\sqrt{s}=13$ TeV and with an integrated luminosity of 140 fb$^{-1}$. The data are corrected for the effects of detector inefficiency and resolution and are compared to state-of-the-art Monte Carlo event generator predictions. The differential cross-sections are used to search for anomalous weak-boson self-interactions that are induced by dimension-six and dimension-eight operators in Standard Model effective field theory.