Authors

Document Type

Article

Publication Date

7-1-2010

Keywords

Deep inelastic scattering, Hadron-electron collisions, Jet algorithms, QCD, Renormalization

Abstract

For the first time, differential inclusive-jet cross sections have been measured in neutral current deep inelastic ep scattering using the anti-kT and SIScone algorithms. The measurements were made for boson virtualities Q2>125 GeV2 with the ZEUS detector at HERA using an integrated luminosity of 82 pb-1 and the jets were identified in the Breit frame. The performance and suitability of the jet algorithms for their use in hadron-like reactions were investigated by comparing the measurements to those performed with the kT algorithm. Next-to-leading-order QCD calculations give a good description of the measurements. Measurements of the ratios of cross sections using different jet algorithms are also presented; the measured ratios are well described by calculations including up to O(αs3) terms. Values of αs(MZ) were extracted from the data; the results are compatible with and have similar precision to the value extracted from the kT analysis. © 2010 Elsevier B.V.

Journal Title

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

Volume

691

Issue

3

First Page

127

Last Page

137

DOI

https://doi.org/10.1016/j.physletb.2010.06.015

First Department

Physics

Acknowledgements

Retrieved March 8, 2021 from https://www.sciencedirect.com/science/article/pii/S0370269310007367

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