E-Dissertationen: Browsing E-Dissertationen by Classification (DDC) "ddc:530"
Now showing items 21-40 of 757
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Analysierstärke und Spinkorrelationsparameter der elastischen Proton-Proton-Streuung im Energiebereich von 0,5 bis 2,5 GeV
Ulbrich, Kay (2005)Das <b>EDDA</b>-Experiment ist ein interner Meßaufbau zur Messung von Anregungsfunktionen und Winkelverteilungen von Observablen der elastischen Proton-Proton-Streuung im Energiebereich 0,5-2,5 GeV (entsprechend dem ... -
Analysis of inclusive semileptonic B meson decays with τ lepton final states at the Belle experiment
Hasenbusch, Jan (2018-06-15)In this thesis, the measurement of the inclusive branching fraction of B→Xτν decays at the Belle experiment is presented. Previous measurements of the inclusive semileptonic b-hadron branching fraction BR(b→Xτν) in ... -
Analysis of pixel systematics and space point reconstruction with DEPFET PXD5 matrices using high energy beam test data
Reuen, Lars (2011-03-04)To answer the current questions in particle physics vertex-detectors, the innermost sub-detector system of a multipurpose particle detector, with brilliant spatial resolution and at the same time with as little sensor ... -
Analysis of the Higgs boson decay in the H → τhadτhad channel and CP properties with √s = 13 TeV collisions at the ATLAS detector
Yuen, Stephanie P. Y. (2019-11-08)In 2012, the last unobserved particle predicted by the Standard Model of particle physics (SM), the Higgs boson, was discovered by the ATLAS and CMS collaborations in a number of its bosonic decay channels. This has been ... -
Analysis tools for precision studies of hadronic three-body decays and transition form factors
Schneider, Sebastian Philipp (2013-03-04)Due to the running coupling constant of Quantum Chromodynamics one of the pillars of the Standard Model, the strong interactions, is still insufficiently understood at low energies. In order to describe the interactions ... -
Anomalous transport in spin-half chains
Sánchez, Ramsés J. (2018-08-15)We study quantum spin transport in clean anisotropic spin-half chains, at and away from integrability. Using exact diagonalization, a set of exact sum-rule moment relations and a memory function Ansatz we investigate the ... -
Anomaly-Free Discrete Gauge Symmetries in Froggatt-Nielsen Models
Luhn, Christoph (2006)Discrete symmetries can forbid dangerous <i>B</i>- and <i>L</i>-violating operators in the supersymmetric Lagrangian. Due to the violation of global discrete symmetries by quantum gravity effects, the introduced discrete ... -
Anordnung und Test der Detektor-Submodul-Komponenten für die Vorwärts-Endkappe des PANDA-EMC
Rossbach, Merlin (2019-07-16)Ein großer Schritt zum besseren Verständnis des Standardmodells der Teilchenphysik ist die Beschreibung der Quantenchromodynamik (QCD) im Bereich der nicht störungstheoretisch berechenbaren Energieüberträge. In diesem ... -
Antisymmetrisation in a Jacobi coordinate based no-core shell model approach
Liebig, Susanna (2013-06-13)The theory of the strong interaction, Quantum Chromodynamics (QCD), provides the generally accepted description of strongly interacting processes. Due to the confinement of the fundamental degrees of freedom of QCD, the ... -
Anwendung effektiver Feldtheorie auf Kernmaterie und Neutronenmaterie
Saviankou, Pavel (2009-06-03)In der Arbeit wird die Effektive Feldtheorie in der Ordnung NLO und NNLO angewandt.<br /> Die Ordnung NLO kennt noch keine Dreiteilchenkräfte. Die Theorie liefert jedoch bereits in dieser Ordung das Sättigungsverhalten von ... -
Anwendung immersiver Visualisierungssysteme zur Exploration geophysikalischer und geologischer Daten
Zehner, Björn (2002)Bei der dreidimensionalen Erkundung des geologischen Untergrundes mit Hilfe von geophysikalischen Methoden stellt sich die Frage, wie möglichst schnell ein Überblick über die Daten gewonnen werden kann. Wenn 3D-Modelle am ... -
Arterial-Spin-Labeling-Sequenzentwicklung zur Optimierung der 3T- & 7T-Perfusionsbildgebung und zur Permeabilitätsmodellierung
Schidlowski, Martin (2022-04-04)<strong>Arterial spin labeling sequence development for optimization of 3T & 7T perfusion imaging and for permeability modeling</strong> <br />Pseudo-continuous arterial spin labeling (pCASL) is a magnetic resonance technique ... -
Aspects of Fibers, Fibrations and their Non-Compact Limits in F-theory and Topological String Theory
Schimannek, Thorsten (2018-07-13)This thesis presents results about F-theory and topological string theory on genus one fibered Calabi-Yau manifolds and their non-compact limits.<br /> In the first part we work in the fiber based approach to F-theory and ... -
Aspects of Grand Unification in Higher Dimensions
Wingerter, Akin Achim (2005)We consider various aspects of string phenomenology in the context of heterotic orbifold constructions, where special emphasis is laid on the connection between GUT models in extra dimensions and their relation to string ... -
Associated Production of a Top Quark and a Z Boson in pp Collisions at √s = 13 TeV Using the ATLAS Detector
Cioară, Irina Antonela (2018-09-26)The production of a top quark in association with an <i>Z</i> boson is studied using 36.1 fb<sup>-1</sup> of proton-proton collision data collected by the ATLAS experiment at the LHC in 2015 and 2016 at a centre-of-mass ... -
An atom-sorting machine
Miroshnychenko, Yevhen (2006)In this thesis I present the realization of a technique for building strings of neutral atoms stored in a standing wave optical dipole trap with any desired interatomic separations atom by atom. As the first application ... -
Atomarer Transport und die Kontrolle von Transportresonanzen in optischen Gitterpotentialen
Grossert, Christopher (2015-07-29)Der Ratscheneffekt erlaubt es, eine gerichtete Teilchenbewegung mittels einer im zeitlichen Mittel ungerichteten Kraft zu erzeugen. Da die Transporteffizienz und die Transportrichtung eines klassischen Ratschensystems oft ... -
Atomic-resolution studies of In2O3-ZnO compounds on aberration-corrected electron microscopes
Yu, Wentao (2009-11-02)<p>In this work, inversion domain microstructures of In<sub>2</sub>O<sub>3</sub>(ZnO)<sub>30</sub> compounds were investigated by aberration-corrected Transmission Electron Microscopy (TEM). Both phase contrast and Z-contrast ... -
Atoms in the lowest Landau level of a synthetic erbium quantum Hall system
Röll, Roberto Vittorio (2022-11-30)This thesis presents results on an experimental realisation of a synthetic Landau like system using ultracold erbium atoms in a two-dimensional quantum Hall ribbon geometry. The scheme used to realise artificial magnetic ... -
Aufbau eines Experiments zur Rückstreupolarisationsmessung an ELSA
Becker, Maximilian (2015-05-05)Das BGO-OD-Experiment am Bonner Elektronenbeschleuniger ELSA wurde für die Detektion von geladenen Teilchen unter kleinen Winkeln in Vorwärtsrichtung bei der Photoproduktion von leichten Mesonen an einem flüssigen ...