Jet Cross-Sections and alphas in DIS at HERA

Measurements of inclusive-jet and dijet cross-sections in high-Q2 deep-inelastic scattering are presented together with a short overview of extractions of the strong coupling parameter alpha_S from jets. The data samples used were collected with the ZEUS detector at HERA-1 and HERA-2. The measured d...

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Bibliographic Details
Published in:arXiv.org 2007-07
Main Author: Thomas Schoerner-Sadenius
Format: Article
Language:English
Subjects:
Coupling
Cross-sections
Inelastic scattering
Online Access:Get full text
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Summary:Measurements of inclusive-jet and dijet cross-sections in high-Q2 deep-inelastic scattering are presented together with a short overview of extractions of the strong coupling parameter alpha_S from jets. The data samples used were collected with the ZEUS detector at HERA-1 and HERA-2. The measured distributions are compared to QCD calculations in next-to-leading order which describe the data very well. The various determinations of alpha_S give a consistent picture, have competitive uncertainties and clearly demonstrate the running of the coupling predicted by QCD.
ISSN:2331-8422