# Master Theses

 2020-12-0412:02 [PUBDB-2020-04784] Master Thesis Govoni, P. Search for $\it tZq$ in dilepton final states with Machine Learning techniques 55 pp. (2020) [10.3204/PUBDB-2020-04784] = Masterarbeit, Universit`a degli Studi di Milano - Bicocca, 2020   In this work, events in which a single top quark is produced in association with a Z-boson are investigated. Particular focus is on final states in which two leptons originate from the Z boson and the top quark decays hadronically. [...] OpenAccess: PDF PDF (PDFA); 2020-11-1117:12 [PUBDB-2020-04396] Master Thesis Spitz, L. Substitutional Doping Study on a Skyrmion Lattice with Giant Topological Hall Effect 121 pp. (2020) = Masterarbeit, Technical University of Munich, 2020 2020-11-0511:37 [PUBDB-2020-04239] Master Thesis Hillert, W. Longitudinal Bunch Profile Diagnostics at a Laser-Driven Plasma Wakefield Acceleration Experiment 83 pp. (2020) [10.3204/PUBDB-2020-04239] = Masterarbeit, University of Hamburg, 2020   Plasma wakefield acceleration is a promising technique for the production and/oracceleration of high energy charged particle beams on a centimeter-scale. In suchexperiments, a strong and compact focusing of divergent electron beams can berealized with an active plasma lens. [...] OpenAccess: PDF PDF (PDFA); 2020-10-2619:46 [PUBDB-2020-04032] Master Thesis et al Transverse Momentum Dependent Parton Density Function for the Photon 56 pp. (2020) [10.3204/PUBDB-2020-04032] = Masterarbeit, University of Hamburg, 2020   This thesis examines collinear and transverse momentum dependent parton density functions (PDFs and TMDs) for the photon. To that end, I helped to implement the photoncontribution into the parton evolution programme uPDFevolv. [...] OpenAccess: PDF PDF (PDFA); 2020-09-3018:31 [PUBDB-2020-03615] Master Thesis Hillert, W. Electron beam characterization based on seeded FEL properties 94 pp. (2020) [10.3204/PUBDB-2020-03615] = Masterarbeit, University of Hamburg, 2020   In this thesis a method for electron beam slice diagnostic has been developed.The method is applicable to the drive beam of high-gain FELs operating in seededor SASE mode.It is essentially a time-resolved electron beam parameter estimationbased on experimental data on both projected and time-resolved beam propertiesand a theoretical model implemented in a numerical FEL-simulation code.This approach allows to take into account many independent measurements onelectron bunch (e.g. emittance, energy spread, current), electron optical functions,FEL-amplifier (gain length), and FEL-output radiation(wavelength, power) and deducevarious otherwise experimentally inaccessible quantities like slice parameters,initial bunching, or induced energy modulation. [...] OpenAccess: PDF PDF (PDFA); 2020-08-1116:20 [PUBDB-2020-02988] Master Thesis Ferber, T. Optimization of the $\pi^0$ reconstruction selections for the Belle II experiment [BELLE2-MTHESIS-2020-001] Mainz : Johannes Gutenberg University Mainz 135 pp. (2020) [10.3204/PUBDB-2020-02988] = Masterarbeit, Johannes Gutenberg University, Institute of Nuclear Physics Mainz, 2019   The purpose of this thesis is to provide optimized selections for the $π^0$ reconstruction in the Belle II analysis software framework (basf2). basf2 provides generic selections on photons and on pi0s reconstructed via pi0->gg, which are designed to provide a certain pi0 reconstruction efficiency. [...] OpenAccess: PDF PDF (PDFA); External link: Fulltext 2020-06-2518:43 [PUBDB-2020-02476] Master Thesis Zhang, F. The Performance of Double Cascades Identification in IceCube-Gen2 111 pp. (2020) [10.3204/PUBDB-2020-02476] = Masterarbeit, Humboldt University Berlin, 2020   The IceCube Neutrino Observatory is a cubic-kilometer in-ice Cherenkov detector located at the South Pole. At high energies, the neutrino flux of is expected to be observed in the ratio of 1 : 1 : 1 on Earth. [...] OpenAccess: PDF PDF (PDFA); 2020-01-2615:22 [PUBDB-2020-00551] Master Thesis Klepser, S. Estimating the performance gain achievable by the H. E. S. S. I camera upgrade 79 pp. (2016) = Masterarbeit, University of Potsdam, 2017 The High Energy Stereoscopic System (H.E.S.S.) is an array of four 12-m and one 28-m Imaging Atmospheric Cherenkov Telescopes (IACT) that is used to study the emission of cosmic gamma-rays at very-high energies (100 GeV − 100 TeV). In 2015/2016 the H. [...] Restricted: PDF PDF (PDFA); 2020-01-1717:14 [PUBDB-2020-00398] Master Thesis Ohm, S. Modeling and search of γ-ray emission from Galactic colliding wind binaries 80 pp. (2019) = Masterarbeit, Humboldt University of Berlin, 2019 Colliding wind binaries (CWBs) are unique acceleration sites of cosmicray particles and are known emitters of non-thermal photons. Out of morethan 40 known Galactic CWBs, two have been detected in γ-ray energies, ηCar and γ2 Vel. [...] Restricted: PDF PDF (PDFA); 2019-12-3014:30 [PUBDB-2019-05681] Master Thesis Ganesan, P. Synthesis of Chemical Gradient Multiferroic Crystals: The case of (In, Na)-doped $MnWO_{4}$ solid solutions 1-50 (2019) = Masterarbeit, Ludwig-Maximilians-Univ. München, 2019