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Measurement of Normalised Multi-jet Cross Sections using Regularised Unfolding and Extraction of alphas(MZ) in DIS at High Q2

2012/10/17 by D. Britzger, Daniel Britzger, Britzger, Daniel
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex

paper · pdf · doi:10.48550/arxiv.1210.4723

On behalf of the H1 Collaboration, 4 pages, 1 figures, to be published in the Proceedings of the XX International Workshop on Deep Inelastic Scattering, University of Bonn, 26-30th March 2012

arxiv created 2012/10/17 · openalex publication_date 2012/10/17 · arxiv updated 2012/10/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

New results on normalised inclusive jet, dijet and trijet differential cross sections in neutral current DIS based on a regularised unfolding procedure are presented. Compared to a previously published result on normalised multi-jet cross sections, the new features are an extended range in jet pseudorapidity, an improved hadronic energy scale uncertainty of 1% and the application of an unfolding procedure. The normalised jet cross sections are compared to QCD calculations at NLO. The value of the strong coupling determined from the normalised inclusive jet, dijet and trijet measurements simultaneously is alphas(MZ) = 0.1163 +/- 0.0008 (exp.) +/- 0.0011 (sys.) +0.0044 / -0.0035 (theo.) +/- 0.0014 (PDF).

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