Measurements of Event and Jet Shapes at HERA
Thomas Kluge
TL;DR
This paper presents measurements of event and jet shapes at HERA, comparing experimental data with QCD predictions and Monte Carlo models, and determines the strong coupling constant from subjet multiplicities.
Contribution
It provides new experimental data on event and jet shapes at HERA and extracts the strong coupling constant from these measurements.
Findings
Measurements agree with QCD calculations within uncertainties.
Monte Carlo models describe the data reasonably well.
The strong coupling constant is determined with improved precision.
Abstract
Event shapes and jet shapes in neutral current deep inelastic scattering and photoproduction are studied with the H1 and ZEUS detectors at HERA. The measurements are compared to next-to-leading-order QCD calculations and Monte Carlo models. The strong coupling constant is determined from subjet multiplicities.
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