# Measurement of the inclusive cross-section for the production of jets in association with a Z boson in proton-proton collisions at 8 TeV using the ATLAS detector

## TL;DR

This paper measures the production rate of jets associated with Z bosons in proton-proton collisions at 8 TeV, comparing results with advanced theoretical predictions to test the Standard Model.

## Contribution

It provides the first detailed measurement of Z + jets cross-sections at 8 TeV, unfolded to particle level, and compares them with next-to-leading and next-to-next-to-leading order QCD calculations.

## Key findings

- Good agreement with fixed-order QCD calculations.
- Measured jets with transverse momenta up to 1 TeV.
- Results support the accuracy of current Standard Model predictions.

## Abstract

The inclusive cross-section for jet production in association with a Z boson decaying into an electron-positron pair is measured as a function of the transverse momentum and the absolute rapidity of jets using 19.9 fb$^{-1}$ of $\sqrt s = 8$ TeV proton-proton collision data collected with the ATLAS detector at the Large Hadron Collider. The measured Z + jets cross-section is unfolded to the particle level. The cross-section is compared with state-of-the-art Standard Model calculations, including the next-to-leading-order and next-to-next-to-leading-order perturbative QCD calculations, corrected for non-perturbative and QED radiation effects. The results of the measurements cover final-state jets with transverse momenta up to 1 TeV, and show good agreement with fixed-order calculations.