Measurement of Normalised Multi-jet Cross Sections using Regularised Unfolding and Extraction of $\alpha_{s}$ (MZ) in DIS at High $Q^{2}$

Britzger, Daniel

doi:10.3204/DESY-PROC-2012-02/163

Contribution to a conference proceedings/Internal Report

DESY-2013-01023

Measurement of Normalised Multi-jet Cross Sections using Regularised Unfolding and Extraction of $\alpha_{s}$ (MZ) in DIS at High $Q^{2}$

Britzger, D. (Corresponding author)DESY*

2012
Deutsches Elektronen Synchrotron Hamburg
ISBN: 978-3-935702-67-6

20th International Workshop on Deep-Inelastic Scattering and Related Topics, DIS 2012, Bonn, Germany, 26 Mar 2012 - 30 Mar 2012 Hamburg : Deutsches Elektronen Synchrotron 725-728 (2012) [10.3204/DESY-PROC-2012-02/163]

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Please use a persistent id in citations: doi:10.3204/DESY-PROC-2012-02/163

Report No.: DESY-PROC-2012-02

Abstract: New results on normalised inclusive jet, dijet and trijet dierential cross sections in neutral current DIS based on a regularised unfolding procedure are presented. Compared to apreviously published result on normalised multi-jet cross sections, the new features are an extended range in jet pseudorapidity, an improved hadronic energy scale uncertainty of1% 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 $\alpha_{s}$(MZ) = 0.1163 $\pm$ 0.0008 (exp.) $\pm$ 0.0011 (sys.)$^{+0.0044}_{0.0035}$ (theo.) $\pm$ 0.0014 (PDF).

Note: http://dx.doi.org/10.3204/DESY-PROC-2012-02/163

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