Bestimmung der Protonstrukturfunktion $F_2$ bei großen Impulsüberträgen am H1-Experiment bei HERA
| Autor: | Lipinski, Jörg |
|---|---|
| Přispěvatelé: | Büßer, Schmidt-Parzefall |
| Jazyk: | němčina |
| Rok vydání: | 1996 |
| Předmět: |
electron p: deep inelastic scattering
high [momentum transfer] thesis bibliography weak interaction: effect structure function [p] momentum transfer [dependence] kinematics: data analysis method positron p: colliding beams colliding beams [positron p] DGLAP equation DESY HERA Stor electron p: colliding beams dependence: momentum transfer structure function: x-dependence x-dependence [structure function] deep inelastic scattering [electron p] H1 data analysis method [kinematics] p: structure function momentum transfer: high colliding beams [electron p] effect [weak interaction] experimental results |
| DOI: | 10.3204/PUBDB-2023-02045 |
| Popis: | 118 pp. (1996). In this thesis a determination of the proton structure function $F_2(x, Q^2)$ at large momentum transfers in the kinematical domain $150GeV^2 \leq Q^2 \leq 5000GeV^2$ and $3 \cdot 10^{-3} \leq x \leq 3 \cdot 10^{-1}$ is presented. The data for this analysis was taken by the HERA experiment H1 in 1994 and corresponds to an integrated luminosity $\mathcal{L} = 2557 nb^{-1}$. The events are characterized by an electron, which was scattered at a large angle by a constituent quark of the proton. The selection of the events was mainly based on the detection of the scattered electron in the H1 calorimeter. Two different procedures were used for reconstruction of the kinematical variables $x, y$ and $Q^2$. The Electron Method is based on the energy and the angle of the scattered electron, while the $\sum$-Method in addition uses information of the final hadronic state. The main topics of this thesis were the reconstruction of the energy and the angle of the scattered electron, the efficiency of the selection and the determination of the remaining background in the selected data. The influence of the weak interaction was investigated. Both reconstruction methods gave results for $F_2 (x, Q^2)$ which are in good agreement within the errors. A section of the results together with other H1 results in the kinematical domain of low momentum transfers $Q^2$ were taken for a NLO-QCD-Fit, which was based on the DGLAP equations. This NLO-QCD-Fit, which described the data well within the errors, was recently published by the H1 Collaboration. |
| Databáze: | OpenAIRE |
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