Heidelberg 2022 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 32: QCD (Exp.) 1
T 32.1: Vortrag
Dienstag, 22. März 2022, 16:15–16:30, T-H17
Measurement and QCD analysis of inclusive jet production in deep inelastic scattering at ZEUS — •Florian Lorkowski — DESY, Hamburg, Germany
The cross sections of deep inelastic scattering processes at the electron-proton collider HERA are a well established tool to test perturbative QCD predictions. Additionally, they can be used to determine the non-perturbative parton distribution functions of the proton. Measurements of jet production cross sections are particularly well suited to also constrain the strong coupling constant.
In this talk, a measurement of inclusive jet cross sections in neutral current deep inelastic scattering using the ZEUS detector at the HERA collider is presented. The data was taken in the years 2003 to 2007 at a center of mass energy of 318 GeV and corresponds to an integrated luminosity of 344 pb−1. Massless jets, reconstructed using the k⊥-algorithm in the Breit reference frame, are 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 cross sections are compared to previous measurements as well as NNLO theory predictions. The consistency of the measurement is demonstrated by a simultaneous determination of parton distribution functions and the strong coupling constant.