Abt, I;
Aggarwal, R;
Aushev, V;
Behnke, O;
Bertolin, A;
Bloch, I;
Brock, I;
... Zenaiev, O; + view all
(2023)
Measurement of jet production in deep inelastic scattering and NNLO determination of the strong coupling at ZEUS.
European Physical Journal C
, 83
(11)
, Article 1082. 10.1140/epjc/s10052-023-12180-9.
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Abstract
A new measurement of inclusive-jet cross sections in the Breit frame in neutral current deep inelastic scattering using the ZEUS detector at the HERA collider is presented. The data were taken in the years 2004–2007 at a centre-of-mass energy of 318GeV and correspond to an integrated luminosity of 347pb-1 . The jets were reconstructed using the kt -algorithm in the Breit reference frame. They have been measured as a function of the squared momentum transfer, Q2 , and the transverse momentum of the jets in the Breit frame, p⊥ , Breit . The measured jet cross sections are compared to previous measurements and to perturbative QCD predictions. The measurement has been used in a next-to-next-to-leading-order QCD analysis to perform a simultaneous determination of parton distribution functions of the proton and the strong coupling, resulting in a value of αs(MZ2)=0.1142±0.0017(experimental/fit)-0.0007+0.0006(model/parameterisation)-0.0004+0.0006(scale) , whose accuracy is improved compared to similar measurements. In addition, the running of the strong coupling is demonstrated using data obtained at different scales.
| Type: | Article |
|---|---|
| Title: | Measurement of jet production in deep inelastic scattering and NNLO determination of the strong coupling at ZEUS |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1140/epjc/s10052-023-12180-9 |
| Publisher version: | http://dx.doi.org/10.1140/epjc/s10052-023-12180-9 |
| Language: | English |
| Additional information: | This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10184233 |
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