Untersuchung zur Rekonstruktion von D*+- -Mesonen in Photoproduktion am H1-Detektor bei HERA
type: CreativeWork
description: In electron-proton collisions at the HERA collider ring of DESY charmed particles, especially charged excited D-mesons, are produced via the process of boson gluon fusion, their decay particles being detected in the H1 detector. In this thesis the cross section for the production of these charmed mesons is determined, which leads to a better understanding of the gluon density in the proton. In order to calculate the cross section, the following decay channel is analysed: The charged excited D-Meson decays into an uncharged D-Meson and a slow charged pion. The first decays into an uncharged K-Meson and two pions of opposite charge. The K-Meson itself decays into another pair of pions of opposite charge, so that all together five charged pions are produced. The charged excited D-Meson is reconstructed from these five pions. This analysis is based on the data of the H1 detector collected in the running periods of the years 1997, 1999 and 2000. The data is compared to predictions of the Monte Carlo generator AROMA 2.2, which offers a good description of the underlying generation processes as well as the decay processes.
abstract: In electron-proton collisions at the HERA collider ring of DESY charmed particles, especially charged excited D-mesons, are produced via the process of boson gluon fusion, their decay particles being detected in the H1 detector. In this thesis the cross section for the production of these charmed mesons is determined, which leads to a better understanding of the gluon density in the proton. In order to calculate the cross section, the following decay channel is analysed: The charged excited D-Meson decays into an uncharged D-Meson and a slow charged pion. The first decays into an uncharged K-Meson and two pions of opposite charge. The K-Meson itself decays into another pair of pions of opposite charge, so that all together five charged pions are produced. The charged excited D-Meson is reconstructed from these five pions. This analysis is based on the data of the H1 detector collected in the running periods of the years 1997, 1999 and 2000. The data is compared to predictions of the Monte Carlo generator AROMA 2.2, which offers a good description of the underlying generation processes as well as the decay processes.
author: Höting, Peter
language: ger
keywords: info:eu-repo/classification/ddc/530, Elektron-Proton-Streuung, D-Stern-Meson, Photoproduktion, H1 <Teilchendetektor>, Physik, D, -Meson, charm, H1, HERA
date published: 2004
date modified: 2026-07-30T19:42:48Z
provider: RWTH Aachen University
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: Publikationsserver der RWTH Aachen University