Inclusive Jet Production in DIS at High Q^2 and Extraction of the Strong Coupling

TL;DR

This paper reports on measurements of inclusive jet production in high-Q^2 deep-inelastic scattering, demonstrating the running of the strong coupling constant and extracting its value at the Z boson mass scale.

Contribution

It provides new experimental data on jet production at high Q^2 and confirms the running of alpha_s using next-to-leading order QCD calculations.

Findings

Measurements agree with NLO QCD predictions

Demonstration of the running of alpha_s

Precise extraction of alpha_s(M_Z)

Abstract

Inclusive jet production is studied in neutral current deep-inelastic positron-proton scattering at large four momentum transfer squared Q^2>150 GeV^2 with the H1 detector at HERA. The measurements are found to be well described by calculations at next-to-leading order in perturbative QCD. The running of the strong coupling is demonstrated and the value of alpha_s(M_Z) is determined.