Study of the azimuthal asymmetry of jets in neutral current deep inelastic scattering at HERA

TL;DR

This study investigates the azimuthal distribution of jets in high-Q^2 deep inelastic e+p scattering at HERA, confirming QCD predictions with experimental data.

Contribution

It provides the first detailed measurement of azimuthal asymmetry of jets in this scattering process and compares results with next-to-leading-order QCD calculations.

Findings

Azimuthal distribution matches NLO QCD predictions.

Structure observed in the azimuthal distribution.

Results support QCD modeling of jet production.

Abstract

The azimuthal distribution of jets produced in the Breit frame in high-Q**2 deep inelastic e+p scattering has been studied with the ZEUS detector at HERA using an integrated luminosity of 38.6 pb-1. The measured azimuthal distribution shows a structure that is well described by next-to-leading-order QCD predictions over the Q**2 range considered, Q**2>125 GeV**2.