Measurement of multi-jets and vector boson plus jets production in ATLAS

TL;DR

This paper presents recent ATLAS measurements of multi-jet and vector boson plus jets production at the LHC, providing critical tests of QCD and improving the understanding of strong interactions.

Contribution

It offers new high-precision measurements of jet and vector boson production, enhancing the validation of QCD predictions and the determination of the strong coupling constant.

Findings

Measurements agree with state-of-the-art QCD predictions

Insights into jet substructure and heavy-flavor contributions

Improved constraints on the strong coupling constant

Abstract

The production of multiple jets or vector bosons in association with jets at the LHC provides a unique testing ground for Quantum Chromodynamics (QCD) in the high-energy regime. With the increasing precision of the ATLAS measurements, detailed studies have become possible on observables that probe different aspects of QCD, such as the topological configurations between vector bosons and jets, jet substructure features, and heavy-flavor jet contributions. These measurements also play a key role in improving the precision of the determination of the strong coupling constant. Recent ATLAS results in these areas are presented, offering new insights into QCD dynamics and the performance of state-of-the-art theoretical predictions.