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DISSERTATIONEN - MASTERARBEITEN - BACHELORARBEITEN 2015
[PUBDB-2015-01440]
Report/Dissertation / PhD Thesis
Study of Field-Limiting Defects in Superconducting RF Cavities for Electron-Accelerators
[DESY-THESIS-2015-004]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 1-139 (2015) [10.3204/DESY-THESIS-2015-004] = Universität Hamburg, Diss., 2015
Superconducting radio-frequency resonators made from niobium are an integral part ofmany accelerator projects. Their main advantage are the low ohmic losses resulting inthe possibility for a long pulse structure and high duty cycles up to continous wave (cw)operation. [...]
OpenAccess: desy-thesis-15-004 - PDF; desy-thesis-15-004.title - PDF PDF (PDFA); External link: Fulltext
[PUBDB-2015-02211]
Report/Dissertation / PhD Thesis
Linear Acoustic Waves Induced in a Cylindrical Solid Target by Particle Beam in $e^{-} - e^{+}$ Colliders
[DESY-THESIS-2015-020]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 178 pp. (2015) [10.3204/DESY-THESIS-2015-020] = Universität Hamburg, Diss., 2015
A future high energy lepton collider will demand high luminosities to achieve its physics goals. For the electron-positron linear collider, the generation of the desired amount of positrons is a non-trivial problem: the positron production target has to survive huge amounts of energy deposited by the bombardment of intense beams of electrons or photons. [...]
OpenAccess: desy-thesis-15-020.title - PDF PDF (PDFA); oadeyemiPhDThesis-pdfA - PDF; oadeyemiPhDThesis - PDF;
[PUBDB-2015-03095]
Dissertation / PhD Thesis
Texture and stress characterization of a copper tube by neutron, synchrotron and electron diffraction
OpenAccess: PDF PDF (PDFA);
[PUBDB-2015-00983]
Master Thesis
High ecient Terahertz Generation using Pulse Front Tilt Schemes
Intense ultrafast THz fields are of great interest for: electron acceleration, beam manipulation and measurement, and pump-probe experiments with coherent X-ray sources. Moreover, acceleration at THz frequencies has an advantage over RF, it can access high electric field gradients, and the beam delivery can be treated quasi-optically [...]
OpenAccess: PDF PDF (PDFA);
[PUBDB-2015-01955]
Report/Dissertation / PhD Thesis
On the cosmological propagation of high energy particles in magnetic fields
[DESY-THESIS-2015-013]
Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 187 pp. (2015) [10.3204/DESY-THESIS-2015-013] = Universität Hamburg, Diss., 2015
OpenAccess: RafaelAlvesBatista-PhD_Thesis - PDF PDF (PDFA); desy-thesis-15-013.title - PS; desy-thesis-15-013.print - PDF PDF (PDFA);
[PUBDB-2015-05499]
Master Thesis
Erstellung eines Programms zur Simulation einer zeitlichen Strahlformung mittels doppelbrechender Kristalle ausgehend von gaußförmigen Laserimpulsen.
OpenAccess: PDF PDF (PDFA);
[PUBDB-2014-04070]
Master Thesis
sparc - ein Programm zur Analyse von Strahlungsphänomenen in von Particle-in-Cell-Codes simulierten Plasma-Wakefield-Beschleunigungsszenarien. - (sparc - a Program for the Analysis of Radiation Phenomena in Plasma Wakefield Acceleration Scenarios simulated by Particle-in-Cell Codes.)
AbstractPlasma-Wakeeld Accelerators are seen as a promising future technology for the generationof high-energy electron bunches at acceleration lengths which are much shorter thanthe ones needed for conventional linear accelerators. The main mechanism for this methodis based on the observation that plasma can sustain very high eld gradients, whichcan be excited by a high-intensity laser and then used for the acceleration of electrons.The prevalent method for the modelling of these processes are Particle-in-Cell simulations(PIC-Simulations), which oer an accurate depiction of the associated physical propertieswithin their numerical boundaries. [...]
Restricted: PDF PDF (PDFA);
[PUBDB-2015-03226]
Dissertation / PhD Thesis
Phase transformation kinetics during continuous heating of $\alpha$+$\beta$ and metastable β titanium alloys
The progress of environmental as well as performance targets that must be guaranteed by the transportation sector is highly conditioned to the availability of materials that can offer structural weight savings and improve engine performance. Titanium alloys are key materials in this regard owing to their superior specific strength with respect to other structural alloys and excellent corrosion resistance up to ~ 500 °C. [...]
Restricted: PDF PDF (PDFA);
[PUBDB-2015-03212]
Report/Dissertation / PhD Thesis
Associated top-quark-pair and b-jet production in the dilepton channel at $\sqrt{s}$ = 8 TeV as test of QCD and background to tt+Higgs production
[DESY-THESIS-2015-035]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 312 pp. (2015) [10.3204/DESY-THESIS-2015-035] = Universität Hamburg, Diss., 2015
[PUBDB-2017-08514]
Dissertation / PhD Thesis
; ; Entfaltung von Röntgenfluoreszenzbildern mittels Ptychographie
132 pp. (2015) [10.3204/PUBDB-2017-08514] = Dissertation, University of Hamburg, 2015
Die Röntgenfluoreszenzbildgebung ist eine der sensitivsten Methoden zur Bestimmung der Elementzusammensetzung einer Probe. Die erreichbare räumliche Auflösung der Röntgenfluoreszenzbildgebung ist experimentell meist durch die Größe des Röntgenfokus und die verfügbare Röntgendosis bestimmt. [...]
OpenAccess: PDF;
[PUBDB-2016-00202]
Master Thesis
Charge Asymmetries in $\pi{+} \pi^{-}$ Photoproduction in a Model for Soft High Energy Scattering and Detector Asymmetry Measurements at the H1 Experiment
Charge asymmetries in$\pi{+} \pi^{-}$ photoproduction are studied in a model for soft high energy scattering processes. $\pi{+} \pi^{-}$ photoproduction at high center of mass energies is dominated by the exchange of the pomeron with even charge conjugation quantum number C. [...]
[PUBDB-2015-03246]
Master Thesis/Internal Report
Selection of Vector Boson Fusion Events in the $H→γγ$ Decay Channel Using an Inclusive Event Shape
[CERN-THESIS-2015-037]
Present-day measurements of the signal strength of the Higgs-boson production modevector boson fusion tend to suffer from large theoretical uncertainties on the gluon fusioncontamination in the vector boson fusion selection. The measurements are still limited by thestatistical uncertainties, but as more data will be recorded, the statistical uncertainties will bereduced. [...]
OpenAccess: PDF;
[PUBDB-2017-153876]
Dissertation / PhD Thesis
Color and TMD universality in hadronic interactions = Kleur en TMD universaliteit in hadronische interacties
External link: full text
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[PUBDB-2015-04727]
Dissertation / PhD Thesis
Towards an Ytterbium based optical waveform synthesizer
Hamburg 15 - 193 (2015) [10.3204/PUBDB-2015-04727] = Dissertation, Universität Hamburg, 2015
Molecular and atomic structures and dynamics have been unraveled with the development of ultrafast, high-energy optical lasers, delivering pulses from the infra-red to the X-rays. Soft X-Rays attosecond pulses can be generated via high-harmonic generation from an optical high-energy, single-cycle laser. [...]
OpenAccess: PDF;
[PUBDB-2015-03802]
Report/Dissertation / PhD Thesis
; ; ; et al Search for a Heavy Neutral Higgs Boson decaying into Tau Pairs with the CMS Experiment at the LHC
[DESY-THESIS-2015-038]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 158 pp. (2015) [10.3204/DESY-THESIS-2015-038] = Universität Hamburg, Diss., 2015
A search for a heavy MSSM Higgs boson is performed in the $\phi \rightarrow \tau\tau \rightarrow e\mu$ decay channel, using data corresponding to an integrated luminosity of $19.7$fb$^{-1}$ at a p-p center of mass energy of $8$TeV, collected by the CMS experiment at the Large Hadron Collider. The search is optimized for Higgs boson masses between $300$ and $1000$GeV and makes the use of Boosted Decision Trees for an improved selection of signal events. [...]
OpenAccess: published_version_v002 - PDF PDF (PDFA); desy-thesis-15-038.title - PDF PDF (PDFA); External link: Fulltext
[PUBDB-2015-01771]
Dissertation / PhD Thesis
; Advances towards the Development of Compact Relativistic Electron and Bright X-Ray Sources
102 pp. (2015) [10.3204/PUBDB-2015-01771] = Dissertation, Universität Hamburg, 2015
Compact brilliant attosecond electron and x-ray sources promise to bring wide-spread access to groundbreaking scientific, technological, and medical tools. In the pursuit of such visionary technology, this thesis describes in detail three key scientific and technological feasibility advances towards the development of novel electron and x-ray sources based entirely on optical lasers. [...]
OpenAccess: PDF PDF (PDFA);
[PUBDB-2015-05411]
Report/Dissertation / PhD Thesis
Development and characterization of electron sources for diffraction applications
[DESY-THESIS-2015-051]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 134 pp. (2015) [10.3204/DESY-THESIS-2015-051] = Universität Hamburg, Diss., 2015
The dream to control chemical reactions that are essential to life is now closer than ever to gratify. Recent scientific progress has made it possible to investigate phenomena and processes which deploy at the angstroms scale and at rates on the order femtoseconds. [...]
OpenAccess: desy-thesis-15-051.title - PDF PDF (PDFA); Development and characterization of electron sources for diffraction applications - PDF;
[PUBDB-2015-02094]
Dissertation / PhD Thesis
Ni/Ti Reactive Multilayers for Joining
Reactive multilayers are interesting for a variety of applications, including near-net shape form- ing of parts/systems of intermetallic compounds, dissimilar/similar joining, ignition origin and as highly localised heat sources. In the last decade, the production of intermetallic compounds, from multilayer thin films, became a widespread process. [...]
Restricted: PDF PDF (PDFA);
[PUBDB-2015-05425]
Report/Dissertation / PhD Thesis
Silicon Sensors for the Upgrades of the CMS Pixel Detector
[DESY-THESIS-2015-052]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 141 pp. (2015) [10.3204/DESY-THESIS-2015-052] = Universität Hamburg, Diss., 2015
[PUBDB-2016-05711]
Dissertation / PhD Thesis
Generation and control of super-octave-spanning spectra
167 pp. (2015) [10.3204/PUBDB-2016-05711] = University of Hamburg, Diss., 2016
Continued progress in photon science demands advances in light source technology. For this purpose, this dissertation presents the generation and control of super-octave-spanning optical pulses based on dielectric chirped mirrors.The generation of isolated attosecond XUV pulses and exploration of attosecond physics would strongly benefit from the availability of intense phase-stable optical waveforms custom-sculpted on the time scale of the light period. [...]
OpenAccess: PDF PDF (PDFA);
[PUBDB-2016-05557]
Master Thesis
; ; Compensation of Steerer Crosstalk between FLASH1 and FLASH2
The free-electron laser in Hamburg (FLASH) is a user facility, delivering soft X-ray radiation for photon science since 2005. Starting from 2014, a second beam line for user operation, FLASH2, has been commissioned. [...]
OpenAccess: PDF;
[PUBDB-2017-05203]
Master Thesis
Carbon Monoxide Adsorption on Graphene Supported Platinum and Rhodium Nanoparticles
[PUBDB-2017-11590]
Dissertation / PhD Thesis
; ; ; et al Search for multiple neutrino flares from Active Galactic Nuclei with the IceCube detector
Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät 133 pp. (2015) [10.18452/17611] = Dissertation, Humboldt Universität, 2015
Active Galactic Nuclei are among the best candidate sources for high-energy cosmic rays. High-energy neutrinos are expected to be produced in these sources via interactions of cosmic rays with matter or photon fields present in the source vicinity. [...]
OpenAccess: PDF PDF (PDFA);
[PUBDB-2015-01298]
Dissertation / PhD Thesis
; ; ; et al Studies of Active Galactic Nuclei with the MAGIC Telescopes
Berlin : Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät 165 pp. (2015) [10.18452/17179] = Dissertation, Humboldt-Universität zu Berlin, 2015
Schwerpunkt dieser Arbeit ist die Emission von hochenergetischer Gammastrahlung aus Aktiven Galaxienkernen, anhand von Beobachtungen mit den MAGIC Teleskopen. Aktive Galaxien entstehen durch die Freisetzung von Gravitationsenergie der Stellarmaterie, die in das zentrale Schwarze Loch fällt. [...]
OpenAccess: PDF;
[PUBDB-2016-00091]
Master Thesis
Implementierung eines hochstabilen Phasendetektors zwischen Mikrowellensignalen und optischen Pulszügen
Diese Arbeit behandelt die Theorie, Simulation und den Aufbau eines Balanced Optical Microwave Phase Detector (BOMPD) zur Messung der Phase zwischen Mikrowellensignalen und optischen Pulszügen. Ein Entwurf der Mikrowellenkomponenten auf einer Keramik-Leiterplatte wurde realsiert. [...]
Restricted: PDF PDF (PDFA);
[PUBDB-2015-05768]
Master Thesis
Zeitaufgelöste Photoelektronenspektroskopie am Schwere-Fermionen-System YbInCu4 und Präparation magnetischer Substrate
[PUBDB-2015-01396]
Report/Dissertation / PhD Thesis
Differential Cross Section Measurement of Drell-Yan Production and associated Jets with the CMS Experiment at the LHC
[DESY-THESIS-2015-002]
Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 242 pp. (2015) [10.3204/DESY-THESIS-2015-002] = Universität Hamburg, Diss., 2015
A measurement of the Drell-Yan differential cross section in proton-proton collisionsat a centre-of-mass energy of 7 TeV is presented. The results are obtained using Z$^0$/$\gamma$ $r\rightarrow$ $\mu^+$$\mu^-$ decays in a data sample collected with the CMS detector correspondingto an integrated luminosity of 4.9 fb$^{-1}$. [...]
OpenAccess: PDF PDF (PDFA);
[PUBDB-2015-02621]
Report/Dissertation / PhD Thesis
Development of Silicon Detectors for the High Luminosity LHC
[DESY-THESIS-2015-024]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 215 pp. (2015) [10.3204/DESY-THESIS-2015-024] = Universität Hamburg, Diss., 2015
[PUBDB-2015-03011]
Book/Report/Dissertation / PhD Thesis
Highly-Ordered Magnetic Nanostructures on Self-Assembled $\mathrm{\alpha-Al_2O_3}$ and Diblock Copolymer Templates
[DESY-THESIS-2015-031]
Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 250 pp. (2015) [10.3204/DESY-THESIS-2015-031] = Dissertation, Universität Hamburg, 2015
[PUBDB-2015-03479]
Book/Dissertation / PhD Thesis
Interference effects in new physics processes at the LHC
[DESY-THESIS-2015-037]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 188 pp. (2015) [10.3204/DESY-THESIS-2015-037] = Dissertation, Universität Hamburg, 2015
Interference effects between nearly mass-degenerate particles are ad-dressed in this thesis, comprising higher-order calculations, a model-independent method to calculate interference terms efficiently and aphenomenological application to current Higgs searches at the LHC.Predictions of cross sections and decay widths can be severelyaffected by interference terms between quasi-degenerate states arising inmodels beyond the Standard Model. We formulate a generalisation ofthe narrow-width approximation (NWA) which allows for a consistenttreatment of such effects by factorising the interference term into on-shellmatrix elements of the production and decay parts, optionally furtherapproximated as simple interference weight factors, incorporating one-loop and real corrections in a UV- and IR-finite way. [...]
[PUBDB-2015-04606]
Dissertation / PhD Thesis
Phasing using high intensity free-electron laser radiation
X-ray free-electron lasers (XFELs) provide extremely bright X-ray pulses of femtosecond duration, that promise to revolutionize structural biology, as they can be used to collect diffraction data from micrometer-sized crystals while outrunning ra- diation damage. The high fluence of the XFEL pulses induces severe electronic radiation damage to the sample, and especially the heavy atoms are strongly ion- ized by the X-ray radiation. [...]
OpenAccess: PDF PDF (PDFA);
[PUBDB-2015-04278]
Report/Dissertation / PhD Thesis
Precision Predictions of Exclusive Jet Cross Sections at the LHC
[DESY-THESIS-2015-042]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 159 pp. (2015) [10.3204/DESY-THESIS-2015-042] = Universität Hamburg, Diss., 2015
With the discovery of the Higgs boson, a central objective of the LHC Higgs program is to study its properties in detail by exploring different production and decay channels. This requires precise theoretical predictions of inclusive cross sections as well as differential and exclusive cross sections. [...]
[PUBDB-2015-04624]
Dissertation / PhD Thesis
Data processing and analysis in serial crystallography at advanced X-ray sources
In the recent past a tremendous effort has been devoted to designing X-ray sources producing radiation pulses with unique properties. With the advent of X-ray Free-Electron Lasers (XFELs), inherent limits of bioimaging can be overcome by delivering X-ray pulses short enough to outrun conventional radiation damage processes and to allow probing of timescales which were previously unthinkable to investigate. [...]
OpenAccess: PDF PDF (PDFA);
[PUBDB-2015-06052]
Dissertation / PhD Thesis
Monolithische, anorganisch-organische Hybridmaterialien auf Sol-Gel-Basis für die Anwendung als Wärmedämmung
[PUBDB-2015-01456]
Bachelor Thesis
Optoelektronische Sensorschaltung zur Positionsbestimmung ultrakurzer Laserpulse
Hamburg : Hochschule für Angewandte Wissenschaften Hamburg 1 - 76 (2015) = Hochschule für Angewandte Wissenschaften Hamburg, Bachelorarbeit, 2015
In dieser Arbeit wurde eine Sensorschaltung zum Auslesen einer Quadrantenfotodiode entwickelt. Dabei wurde das Anwendungsumfeld eingehend analysiert und charakterisiert und verschiedene Möglichkeiten der Realisierung gegenübergestellt. [...]
OpenAccess: PDF PDF (PDFA);
[PUBDB-2015-05122]
Report/Dissertation / PhD Thesis
Synchronization and Sequencing of Data Acquisition and Control Electronics at the European X-Ray Free Electron Laser
[DESY-THESIS-2015-049]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 120 pp. (2015) [10.3204/DESY-THESIS-2015-049] = Technische Universität Hamburg-Harburg, Diss., 2015
The European XFEL will generate repetitive bursts of short x-ray laser pulses to several experiment stations, which will allow in-depth research in various scientific fields. In order to accurately synchronize and sequence all control and data acquisition electronics a time reference system is required. [...]
OpenAccess: Dissertation_Gessler_final - PDF PDF (PDFA); desy-thesis-15-049.title - PDF PDF (PDFA); External link: Fulltext
[PUBDB-2015-01451]
Report/Dissertation / PhD Thesis
Probing Supersymmetry based on Precise Jet Measurements at the CMS Experiment
[DESY-THESIS-2015-003]
Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 211 pp. (2015) [10.3204/DESY-THESIS-2015-003] = Universität Hamburg, Diss., 2015
The search for new physics beyond the standard model of particle physics is one of the main goals of the CMS experiment at the CERN Large Hadron Collider. Many theories, for instance supersymmetry, involve the possible production of new coloured particles which feature jets as their experimental signature. [...]
OpenAccess: PDF PDF (PDFA);
[PUBDB-2015-01470]
Report/Dissertation / PhD Thesis
Photoinduced Charge Transfer in a Transition Metal Complex Investigated by Time-Resolved X-ray Absorption Fine Structure Spectroscopy: Setup and Experiment
[DESY-THESIS-2015-008]
OpenAccess: Dissertation_Dennis_Goeries_Veroeffentlichung - PDF PDF (PDFA); desy-thesis-15-008.title - PS;
[PUBDB-2016-04605]
Master Thesis
; In the Pursuit of a High-Performance and Inexpensive Magnetic Material
[PUBDB-2017-153961]
Dissertation / PhD Thesis
Die ‚gläserne Decke‛ im Arbeitsrecht – Die Regelungen des AGG im Hinblick auf ihre Effektivität bezüglich der Diskriminierung von Frauen auf dem Weg in die Führungspositionen von Unternehmen
HH Diss. A Gse Find similar...
[PUBDB-2015-02100]
Report/Dissertation / PhD Thesis
Comparison of Iron and Tungsten Absorber Structures for an Analog Hadron Calorimeter
[DESY-THESIS-2015-018]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 169 pp. (2015) [10.3204/DESY-THESIS-2015-018] = Universität Hamburg, Diss., 2015
Future electron-positron-collider experiments will require unprecedented jet-energy resolution to complete their physics programs. This can only be achieved with novel approaches to calorimetry. [...]
OpenAccess: Doktorarbeit_toBePublished - PDF PDF (PDFA); desy-thesis-15-018.title - PS; External link: Fulltext
[PUBDB-2015-01489]
Report/Dissertation / PhD Thesis
Study of double parton scattering using four-jet scenarios in proton-proton collisions at $\sqrt{s}$ = 7 TeV with the CMS experiment at the Large Hadron Collider
[DESY-THESIS-2015-010]
Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 296 pp. (2015) [10.3204/DESY-THESIS-2015-010] = University of Hamburg and University of Antwerpen, Diss., 2015
[PUBDB-2015-02760]
Report/Dissertation / PhD Thesis
Dissecting CFT Correlators and String Amplitudes: Conformal Blocks and On-Shell Recursion for General Tensor Fields
[DESY-THESIS-2015-026]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 115 pp. (2015) [10.3204/DESY-THESIS-2015-026] = Universität Hamburg, Diss., 2015
This thesis covers two main topics: the tensorial structure of quantum field theory correlators in general spacetime dimensions and a method for computing string theory scattering amplitudes directly in target space.In the first part tensor structures in generic bosonic CFT correlators and scattering amplitudes are studied. To this end arbitrary irreducible tensor representations of $SO(d)$ (traceless mixed-symmetry tensors) are encoded in group invariant polynomials, by contracting with sets of commuting and anticommuting polarization vectors which implement the index symmetries of the tensors. [...]
OpenAccess: desy-thesis-15-026.title - PDF PDF (PDFA) (additional files); thesis - PDF PDF (PDFA) (additional files);
[PUBDB-2019-02785]
Master Thesis
Yb$^{3+}$:CaAlGdO$_4$ für fs-lasergeschriebene Wellenleiterlaser und modengekoppelte Laser
[PUBDB-2017-05209]
Dissertation / PhD Thesis
Operando Characterization of Supported Alloy Nanoparticles during Catalytic CO Oxidation by Surface Sensitive X-Ray Diffraction
[PUBDB-2015-03860]
Report/Dissertation / PhD Thesis
Measuring Hadronic Jets at the ILC - From Particle Flow Calorimetry to the Higgs Self-Coupling
[DESY-THESIS-2015-039]
[PUBDB-2016-04669]
Dissertation / PhD Thesis
Integrative taxonomy and conservation status of amphibians in western Panama with an emphasis on the highlands of the Cordillera Central
[PUBDB-2017-09563]
Dissertation / PhD Thesis
Erforschung von Prozessen an nanostrukturierten Oberflächen mit Röntgenkleinwinkelstreuung unter streifendem Einfall
[PUBDB-2015-03078]
Report/Dissertation / PhD Thesis
Femtosecond Electron Diffraction: Next generation electron sources for atomically resolved dynamics
[DESY-THESIS-2015-032]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 238 pp. (2015) [10.3204/DESY-THESIS-2015-032] = Universität Hamburg, Diss., 2015
Three instruments for femtosecond electron diffraction (FED) experiments were erected, partially commissioned and used for first diffraction experiments. The Relativistic Electron Gun for Atomic Exploration (REGAE) was completed by beamline elements including supports, a specimen chamber and dark current or electron beam collimating elements such that the commissioning process, including first diffraction experiments in this context, could be started. [...]
OpenAccess: desy-thesis-15-032.title - PDF PDF (PDFA); Dissertation-Julian-Hirscht - PDF PDF (PDFA);
[PUBDB-2015-01471]
Report/Dissertation / PhD Thesis
Production Cavity and Central Optics for a Light Shining through a Wall Experiment
[DESY-THESIS-2015-005]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 145 pp. (2015) [10.3204/DESY-THESIS-2015-005] = Universität Hamburg, Diss., 2015
The unexplained nature of dark matter and dark energy is a prominent reason for investigating physicsbeyond the standard model of particle physics (SM). Some extensions of the SM propose weaklyinteracting slim particles (WISPs). [...]
OpenAccess: PDF PDF (PDFA);
[PUBDB-2016-01826]
Report/Dissertation / PhD Thesis
Search for vector-like T' quarks using tools for the analysis of jet substructure with the CMS experiment
[DESY-THESIS-2015-001]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 193 pp. (2015) [10.3204/DESY-THESIS-2015-001] = Universität Hamburg, Diss., 2015
A search for pairs of vector-like T' quark produced in proton-proton collisions recorded with the CMS experiment at p s = 8 TeV is presented. The search is optimized for decays of T' quarks to top quarks and Higgs bosons, where the top quarks and Higgs bosons decay hadronically [...]
[PUBDB-2015-01537]
Bachelor Thesis/Report
Tests and measurements with a thermal VXD mock-up for BELLE II
[DESY-THESIS-2015-009]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS i-55 (2015) [10.3204/DESY-THESIS-2015-009] = Universität Hamburg, Bachelorarbeit, 2015
As part of the Belle detector upgrade, located at the KEK in Tsukuba, Japan, a CO2 cooling system willbe added. Using new detector components, which are easily damageable or influenced by heat, makethis step necessary. [...]
[PUBDB-2014-04146]
Report/Dissertation / PhD Thesis
Development of Beam Halo Monitors for the European XFEL using radiation hard sensors and demonstration of the technology at FLASH
[DESY-THESIS-2015-016]
Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 109 pp. (2015) [10.3204/DESY-THESIS-2015-016] = Brandenburgische Technische Universität Cottbus-Senftenberg, Diss., 2015
The European X-Ray Free-Electron Laser (E-XFEL), currently under construction in Hamburg, Germany, is intended to be an international linear accelerator (linac) based user facility. Its electron beam can carry maximal average power of 600 kW. [...]
[PUBDB-2017-09144]
Book/Dissertation / PhD Thesis
; Insights into Protein Dynamics by Time-resolved X-ray Scattering
[PUBDB-2017-09476]
Book/Dissertation / PhD Thesis
Insights into protein dynamics by time-resolved X-ray scattering
[PUBDB-2015-02982]
Diploma Thesis
Analysis of Diffractive Open Charm Photoproduction with a Leading Proton at HERA
The diffractive open charm production is studied using data from 2006-2007, when the leading proton measurement by H1 Very Forward Proton Spectrometer was provided. The charm production is tagged by the decay products of D∗ meson [...]
[PUBDB-2015-04946]
Report/Dissertation / PhD Thesis
Nonlinear ionization of many-electron systems over a broad photon-energy range
[DESY-THESIS-2015-046]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 182 pp. (2015) [10.3204/DESY-THESIS-2015-046] = Universität Hamburg, Diss., 2015
[PUBDB-2017-08765]
Dissertation / PhD Thesis
; Engineering strong-field phenomena : from attosecond pulse characterization to nanostructured electron emitters
Massachusetts Institute of Technology 1 - 149 (2015) = Massachusetts Institute of Technology, Diss., 2015
Strong-field phenomena are a driving force behind the latest innovations in ultrafast science. As ultrafast laser sources improve in terms of peak pulse energy and wavelength tunability, applications that utilize high peak electromagnetic field strengths to generate attosecond pulses of both photons and electrons are becoming readily available. [...]
[PUBDB-2016-00291]
Report/Dissertation / PhD Thesis
Measurement of Top-Quark Pair Production Cross Sections and Calibration of the Top-Quark Monte-Carlo Mass using LHC Run I Proton-Proton Collision Data at $\sqrt{s}=$ 7 and 8 TeV with the CMS Experiment.
[DESY-THESIS-2015-054]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 166 pp. (2015) [10.3204/DESY-THESIS-2015-054] = Universität Hamburg, Diss., 2015
OpenAccess: DESY-THESIS-2015-054_Kieseler - PDF PDF (PDFA); desy-thesis-15-054.title - PDF PDF (PDFA);
[PUBDB-2015-04548]
Report/Dissertation / PhD Thesis
Incorporating space charge in the transverse phase-space matching and tomography at PITZ
[DESY-THESIS-2015-044]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 138 pp. (2015) [10.3204/DESY-THESIS-2015-044] = Universität Hamburg, Diss., 2015
The ever-expanding achievements in the field of particle accelerators push their specifications to very demanding levels. The performance of many modern applications depends on their ability to be operated with high bunch charges confined in small volumes. [...]
OpenAccess: PhD thesis Kourkafas Georgios - PDF PDF (PDFA); desy-thesis-15-044.title - PDF PDF (PDFA); External link: Fulltext
[PUBDB-2019-02998]
Bachelor Thesis
Berechnung und Messung von Bauteilen mitunterschiedlichen Wärmeausdehnungskoezientenmittels Optical Deformation Measurement setup (ODM)
123 pp. (2015) [10.3204/PUBDB-2019-02998] = Bachelorarbeit, Fachhochschule Kiel, 2015
OpenAccess: PDF;
[PUBDB-2017-11984]
Book/Dissertation / PhD Thesis
; Cone-beam x-ray phase-contrast tomography for the observation of single cells in whole organs
Göttingen : Göttingen University Press, Göttingen Series in X-ray Physics 223 pp. (2015) [10.3204/PUBDB-2017-11984] = Dissertation, University of Goettingen, 2015
X-ray imaging enables the nondestructive investigation of interior structures in otherwise opaque samples. In particular the use of computed tomography (CT) allows for arbitrary virtual slices through the object and 3D information about intricate structures can be obtained. [...]
[PUBDB-2015-05719]
Dissertation / PhD Thesis
In-operando-Röntgenspektroskopie von oxidischen Materialien und Grenzflächen
OpenAccess: PDF PDF (PDFA);
[PUBDB-2015-03841]
Master Thesis
The FEL-Simulator Imaging Nano-Particle Injectors Using Strong-Field-Ionisation Time-Of-Flight Mass-Spectrometry
1-45 (2015) [10.3204/PUBDB-2015-03841] = Imperial College, London, Masterarbeit, 2015
[PUBDB-2015-02335]
Report/Dissertation / PhD Thesis
QCD analysis of Isolated Photon and Jet Data from $ep$, $pp$, and $p\overline{p}$ Collisions and Tests of $\alpha_s$ Running
[DESY-THESIS-2015-022]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 196 pp. (2015) [10.3204/DESY-THESIS-2015-022] = Universität Hamburg, Diss., 2015
OpenAccess: Thesis_for_Publication_Oleg_Kuprash - PDF PDF (PDFA); desy-thesis-15-022.title - PDF PDF (PDFA);
[PUBDB-2015-05767]
Bachelor Thesis
Inbetriebnahme eines Rastertunnelmikroskops am Beispiel der Präparation und Charakterisierung einer Gold(111)-Oberfläche
[PUBDB-2016-06714]
Dissertation / PhD Thesis
; ; Temporal Control of Laser-Electron Interaction at High-Gain Free-Electron Lasers
High-gain free-electron lasers (FELs) generate ultra-short photon pulses with unparalleled intensities at wavelengths down to the sub-angström range. The exponential amplification process in these devices is initiated by spontaneous undulator radiation emitted by the electron bunch at the beginning of the undulator. [...]
[PUBDB-2015-05197]
Report/Dissertation / PhD Thesis
Timing Calibration of the Trigger System for the Drift Tube Detector of the OPERA Neutrino Oscillation Experiment
[DESY-THESIS-2015-048]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 160 pp. (2015) [10.3204/DESY-THESIS-2015-048] = Universität Hamburg, Diss., 2015
The OPERA experiment searches for muon neutrino to tau neutrino oscillations in an almost pure muon neutrino beam. The goal is to observe the oscillations in appearance mode by using a large-scale lead/emulsion target to resolve individual tau neutrino interactions. [...]
[PUBDB-2017-145003]
Dissertation / PhD Thesis
CP violation in $B_s^0 \rightarrow J/\psi \phi$ decays: Measured with the collider detector at Fermilab
Cham : Springer, Springer theses 137 pages (2015) [10.1007/978-3-319-07929-5] = University of Pisa, Diss., 2012
We report on the final measurement of the CP-violating $B^0_s$ mixing phase β J/ψφ s in √s = 1.96 TeV proton-antiproton collisions collected with the Collider Detector at the Fermilab Tevatron collider. Using a sample corresponding to 9.6 $fb^{− 1}$ of integrated luminosity, we fit the decay-time evolution of $B_0^s$ → J/ψ ( → μ$^+$ μ$^−$) φ ( → K$^+$ K$^−$ ) decays in which the b-quark content at production and the CP parity of the final state are identified. [...]
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539.
72162
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[PUBDB-2015-03465]
Dissertation / PhD Thesis
Phase transformations and stress evolution during laser beamwelding and post heat treatment of TiAl-alloys
γ-TiAl material is an attractive alternative candidate for aerospace and automotiveapplications because of its low density, high specific yield strength and high creep andoxidation resistance. It has been used successfully in the manufacture of low-pressureturbine blades in the GEnxTM engine, which represents a major advance in propulsionefficiency, with a 20% reduction in fuel consumption, a 50% reduction in noise, and an 80%reduction in NOx emissions compared with prior engines of the same class. [...]
Restricted: PDF PDF (PDFA);
[PUBDB-2016-00985]
Dissertation / PhD Thesis/Book
Colloidal crystals of spheres and cubes in real and reciprocal space
Colloidal suspensions, consisting of nano to micro-meter sized particles dispersed in a liquid, are ubiquitous in daily life. Examples are milk, blood and paint [...]
OpenAccess: PDF PDF (PDFA);
[PUBDB-2015-04740]
Dissertation / PhD Thesis/Book
Radiation characteristics of extreme UV and soft X-ray sources
Göttingen : Univ.-Verl. Göttingen, Göttingen series in x-ray physics Online-Ressource (PDF-Datei: 154 S., ca. 5 MB) : zahrl. Ill., graph. Darst. (2015) = University of Göttingen, Diss., 2015
Electromagnetic radiation in the extreme UV and soft x-ray spectral range is of steadily increasing importance in fundamental research and industrial applications. For instance, the molecular structure of certain proteins and viruses has become accessible by coherent imaging techniques and already today, lithographic processes for the microchip production are being adapted to that wavelength range. [...]
[PUBDB-2017-150616]
Dissertation / PhD Thesis
Radiation characteristics of extreme UV and soft X-ray sources
Göttingen : Univ.-Verl. Göttingen, Göttingen series in X-ray physics 15, 131 pages (2015) = University of Göttingen, Diss., 2014
External link: full text
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[PUBDB-2015-03614]
Book/Dissertation / PhD Thesis
Theory of Terahertz Pumping of Chemical Environments in the Condensed Phase
[DESY-THESIS-2015-055]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 152 pp. (2015) [10.3204/DESY-THESIS-2015-055] = Dissertation, Universität Hamburg, 2015
OpenAccess: desy-thesis-15-055.title - PDF PDF (PDFA); Pankaj-Kumar-Mishra-Dissertation - PDF PDF (PDFA);
[PUBDB-2015-03015]
Book/Dissertation / PhD Thesis
Search for a Light NMSSM Higgs Boson in the b-Quark Final State at the LHC
[DESY-THESIS-2015-029]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 201 pp. (2015) [10.3204/DESY-THESIS-2015-029] = Dissertation, Universität Hamburg, 2015
A search for a light neutral Higgs boson decaying into a pair of b quarks is presented. Such Higgs bosons are predicted by certain scenarios of the Next-to-Minimal Supersymmetric Standard Model (NMSSM), whose Higgs sector has two complex Higgs doublets and an additional Higgs singlet. [...]
[PUBDB-2017-11587]
Dissertation / PhD Thesis
; ; ; et al Characterizing cosmic neutrino sources
Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät 233 p. (2015) [10.18452/17377] = Humboldt Universität, Dissertation, 2015
The IceCube Neutrino Observatory is a km$^3$-sized neutrino telescope located at the geographical South Pole. Its primary purpose is the detection of high-energy cosmic neutrinos. [...]
OpenAccess: PDF PDF (PDFA);
[PUBDB-2015-03014]
Book/Report/Dissertation / PhD Thesis
Operation of CdZnTe Semiconductor Detectors in Liquid Scintillator for the COBRA Experiment
[DESY-THESIS-2015-030]
Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 168 pp. (2015) [10.3204/DESY-THESIS-2015-030] = Dissertation, Universität Hamburg, 2015
COBRA, the Cadmium-Zinc-Telluride O-neutrino double-Beta Research Apparatus, is an experiment aiming for the measurement of the neutrinoless double beta decay with several isotopes, in particular Cd-116, Cd-106 and Te-130. A highly granular large scale experiment with about 400 kg of CdZnTe semiconductor detectors is currently under development. [...]
[PUBDB-2015-01472]
Master Thesis
Aufbau und Charakterisierung eines Gas Targets zur Demonstration der kontrollierten Injektion durch negativen Dichtegradient
Plasma-based accelerators support very high accelerating fields whichare at least 2- 3 orders of magnitude stronger than the ones achievablein conventional radio-frequency cavities. Therefore, it is possibleto accelerate the particle to ultra-relativistic energies in much smalleraccelerating distances. [...]
OpenAccess: PDF PDF (PDFA);
[PUBDB-2015-02194]
Bachelor Thesis
A study on the feasibility of a plasma wakefield acceleration based FEL at the FLASHForward facility, DESY - Eine Durchführbarkeitsstudie eines auf Plasma-Wakefield Beschleunigung basierten FELs an der FLASHForward Anlage, DESY
In this thesis, the feasibility of a plasma wakefield acceleration based free-electronlaser at the FLASHForward facility, DESY is examined. For this purpose, beamparameters which are expected for wakefield-induced ionization injection serve as reference.Even though the electron bunch provides a high current, the large slice energyspread is challenging.It is analyzed under which conditions the former Tesla-Test-Facility undulators aresuitable to demonstrate a sufficiently large gain in power. [...]
OpenAccess: PDF PDF (PDFA);
[PUBDB-2017-08766]
Dissertation / PhD Thesis
; ; Sub-femtosecond optical timing distribution for next-generation light sources
Massachusetts Institute of Technology 154 pp. (2015) = Dissertation, Massachusetts Institute of Technology, 2015
Precise timing distribution is critical for realizing a new regime of light control in next-generation X-ray free-electron lasers. These facilities aim to generate sub-femtosecond (fs) X-ray pulses with unprecedented brightness to realize the long-standing scientific dream to capture chemical and physical reactions with atomic-level spatiotemporal resolution. [...]
Restricted: PDF PDF (PDFA);
[PUBDB-2015-02189]
Report/Dissertation / PhD Thesis
Phenomenology of non-minimal supersymmetric models at linear colliders
[DESY-THESIS-2015-021]
Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 152 pp. (2015) [10.3204/DESY-THESIS-2015-021] = Universität Hamburg, Diss., 2015
OpenAccess: Stefano -Porto - PhD Thesis - PDF PDF (PDFA); desy-thesis-15-021.title - PDF PDF (PDFA);
[PUBDB-2017-08769]
Dissertation / PhD Thesis
; ; Strong-field physics with ultrafast optical resonators
Cambridge, Mass. : Massachusetts Institute of Technology 178 pp. (2015) [10.3204/PUBDB-2017-08769] = Massachusetts Institute of Technology, Diss., 2015
Light fields from modern high-intensity, femtosecond laser systems can produce electrical forces that rival the binding forces in atomic and solid-state systems. In this strong-field regime, conventional non-linear optics gives way to novel phenomena such as the production of attosecond bursts of electrons and photons. [...]
[PUBDB-2015-03043]
Report/Dissertation / PhD Thesis
; Jet energy calibration and a search for supersymmetry with vector boson fusion channel like sign di-$\tau_{\textrm{h}}$ final states
[DESY-THESIS-2015-028]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 316 pp. (2015) [10.3204/DESY-THESIS-2015-028] = Universität Hamburg, Diss., 2015
At the LHC, the production of jets has the highest cross section out of all processes. Therefore, jets are important objects for calibration, reconstruction and identification at the CMS experiment. [...]
[PUBDB-2015-02552]
Report/Dissertation / PhD Thesis
Ultrafast Desorption by Impulsive Vibrational Excitation (DIVE): Applications in Laser Surgery, Mass Spectrometry and Towards Ultimate Limits in Biodiagnosis
[DESY-THESIS-2015-023]
Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 109 pp. (2015) [10.3204/DESY-THESIS-2015-023] = Universität Hamburg, Diss., 2015
The prospects for minimally invasive surgery, spatial imaging with mass spectrometry and rapid high throughput biodiagnosis require new means of tissue incision and biomolecule extraction with conserved molecular structure. Towards this aim, a laser ablation process is utilized in this dissertation, which is capable of performing precise tissue incision with minimal collateral damage and extracting intact biological entities with conserved biological functions. [...]
[PUBDB-2015-05769]
Master Thesis
Photoelektronenspektroskopie der lichtinduzierten Spin-Übergänge einer Eisen(II)-Komplexverbindung auf Gold
[PUBDB-2015-03019]
Dissertation / PhD Thesis
Experimental study of hadron properties of photon interactions in the H1 detector at the HERA collider
[PUBDB-2015-05500]
Master Thesis
Aufbau und Optimierung einer Laser-Beamline für den Ionisationslaser des Plasmabeschleunigungsexperiments bei PITZ.
OpenAccess: PDF PDF (PDFA);
[PUBDB-2015-03458]
Book/Dissertation / PhD Thesis
Boosted Searches For New Physics At The LHC
[DESY-THESIS-2015-036]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 121 pp. (2015) [10.3204/DESY-THESIS-2015-036] = Dissertation, Universität Hamburg, 2015
During the first run of the LHC, no apparent signs of new physics beyond the StandardModel were discovered, but rather the Standard Model-like properties of the Higgs particleconfirmed. Therefore, new and powerful methods are needed to disclose the traces of newphysics, which is expected to be at the TeV scale in order to solve the hierarchy problem.In this thesis, we propose two complementary strategies for the quest for new physics atthe LHC. [...]
[PUBDB-2015-04797]
Habil / Postdoctoral Thesis (Non-german Habil)
Complex semiconductors: From atomic-scale structure to band gap bowing
[PUBDB-2017-11588]
Dissertation / PhD Thesis
; ; ; et al Investigation of all-flavour neutrino fluxes with the IceCube detector using the cascade signature
Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät 140 pp. (2015) [10.18452/17514] = Humboldt Universität, Dissertation, 2015
This thesis presents a search for the diffuse astrophysical neutrino flux in 335 days of IceCube data. IceCube is a 1 km$^{3}$ neutrino detector located at the South Pole, consisting of 86 strings, each equipped with 60 Digital Optical Photomultipliers (DOMs), frozen in the ice. [...]
OpenAccess: PDF PDF (PDFA);
[PUBDB-2015-02099]
Report/Master Thesis
Simulation of Particle Fluxes at the DESY-II Test Beam Facility
[DESY-THESIS-2015-017]
Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 100 pp. (2015) [10.3204/DESY-THESIS-2015-017] = Karlsruher Institut für Technologie (KIT), Masterarbeit, 2015
In the course of this Master's thesis "Simulation of Particle Fluxes at the DESY-II Test Beam Facility'' the test beam generation for the DESY test beam line was studied in detail and simulated with the simulation software SLIC. SLIC uses the Geant4 toolkit for realistic Monte Carlo simulations of particles passing through detector material.After discussing the physics processes relevant for the test beam generation and the principles of the beam generation itself, the software used is introduced together with a description of the functionality of the Geant4 Monte Carlo simulation. [...]
[PUBDB-2015-03093]
Report/Dissertation / PhD Thesis
; ; Precise measurement of the top-quark mass at the CMS experiment using the ideogram method
[DESY-THESIS-2015-034]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 203 pp. (2015) [10.3204/DESY-THESIS-2015-034] = Universität Hamburg, Diss., 2015
The mass of the top quark is measured using a sample of ttbar candidate events with one electron or muon and at least four jets in the final state, collected by CMS in proton-proton collisions at sqrt{s}=8 TeV at the LHC. The candidate events are selected from data corresponding to an integrated luminosity of 19.7 fb^-1. [...]
[PUBDB-2015-04348]
Report/Dissertation / PhD Thesis
Design and Optimization of the Grating Monochromator for Soft X-Ray Self-Seeding FELs
[DESY-THESIS-2015-043]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 143 pp. (2015) [10.3204/DESY-THESIS-2015-043] = Universität Hamburg, Diss., 2015
The emergence of Free Electron Lasers (FEL) as a fourth generation of light sources is a breakthrough. FELs operating in the X-ray range (XFEL) allow one to carry out completely new experiments that probably most of the natural sciences would benefit. [...]
[PUBDB-2015-05308]
Report/Dissertation / PhD Thesis
Coherent X-ray diffraction studies of mesoscopic materials
[DESY-THESIS-2015-053]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 135 pp. (2015) [10.3204/DESY-THESIS-2015-053] = Universität Hamburg, Diss., 2015
This thesis is devoted to three separate projects, which can be considered as independent. First, the dynamical scattering effects in the Coherent X-ray Diffractive Imaging (CXDI) method are discussed. [...]
OpenAccess: Dissertation_AnatolyShabalin - PDF PDF (PDFA); desy-thesis-15-053.title - PDF PDF (PDFA);
[PUBDB-2015-01676]
Book/Dissertation / PhD Thesis
; ; Exchange Interactions and Induced $Eu^{3+}$ Magnetic Order in $RMnO_{3}$ Investigated Using Resonant X-ray Diffraction
[DESY-THESIS-2015-011]
Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 137 pp. (2015) [10.3204/DESY-THESIS-2015-011] = Dissertation, Universität Hamburg, 2015
The so-called multiferroics, materials that concomitantly exhibit more than one ferroic order, have in recent years attracted much attention owing totheir possible applications in high density data storage, high sensitivity ac magnetic field sensors and novel spintronic devices. In particular, multifer-roics with strong magnetoelectric coupling are more attractive. [...]
[PUBDB-2015-04615]
Report/Dissertation / PhD Thesis
Quantum effects in nonresonant x-ray scattering
[DESY-THESIS-2015-045]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 176 pp. (2015) [10.3204/DESY-THESIS-2015-045] = Universität Hamburg, Diss., 2015
Due to their versatile properties, x rays are a unique tool to investigate the structure and dynamics of matter. X-ray scattering is the fundamental principle of many imaging techniques. [...]
OpenAccess: Slowik_J_M_Quantum_effects_in_nonresonant_x-ray_scattering - PDF PDF (PDFA); desy-thesis-15-045.title - PDF PDF (PDFA);
[PUBDB-2015-05802]
Dissertation / PhD Thesis
Surface-phase transitions in the charge-density-wave systems 1T-TaSe2 and 1T-TiSe2
[PUBDB-2017-08767]
Dissertation / PhD Thesis
; ; Analog integrated photonics
Cambridge, Mass. : Massachusetts Institute of Technology 1 - 198 (2015) = Massachusetts Institute of Technology, Diss., 2015
Silicon photonics promises to revolutionize the field of optics by allowing for cheap, compact, low-power and low-noise optical systems on chip. In the past decade and a half, the basic functionality and acceptable performance of many individual integrated photonic components have been demonstrated, particularly in the digital regime. [...]
[PUBDB-2015-03518]
Master Thesis
Characterisation of non-irradiated and irradiated diamond sensors before and after application at LHC
Single crystal diamond sensors are used in the Beam Radiation Instrumentation and Luminosity(BRIL) project of the CMS experiment. For the upgrade of the Fast Beam Conditions Monitor (BCM1F)diamond sensors are installed. [...]
[PUBDB-2015-01457]
Report/Dissertation / PhD Thesis
; Liquid Jets for Experiments on Complex Fluids
[DESY-THESIS-2015-007]
[PUBDB-2017-11589]
Dissertation / PhD Thesis
; ; ; et al A search for particle showers at the edge of IceCube’s instrumented volume
Humboldt-Universität zu Berlin 212 pp. (2015) [10.18452/18124] = Dissertation, Humboldt Universität, 2015
Among the analysis strategies used in IceCube, searches for neutrinoinduced particle showers, so called cascades, provide good energy resolution and a relative low atmospheric background. Therefore, they provide large sensitivity to the extraterrestrial neutrino flux. [...]
OpenAccess: PDF PDF (PDFA);
[PUBDB-2017-11668]
Dissertation / PhD Thesis
; ; ; et al VHE Gamma-ray sources at the resolution limit of H.E.S.S
Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät 131 pp. (2015) [10.18452/17517] = Humboldt Universität, Dissertation, 2015
Very-high-energy (VHE)γ-ray astronomy deals with the ground-based detection of pho-tons with energies of a few tens of GeV to∼100 TeV by employing the Imaging Air Cherenkov Technique (IACT). This method uses the atmosphere as a detector for VHE γ-rays, exploiting that photons in that energy range produce particle showers by inter-acting with atmospheric particles. [...]
OpenAccess: PDF;
[PUBDB-2015-05810]
Dissertation / PhD Thesis
Development of radiation hard pixel modules employing planar n-in-p siliconsensors with active edges for the ATLAS detector at HL-LHC
ATLAS is one of the two main experiments at LHC with the purpose of investigating the microscopic properties of matter to address the most fundamental questions of particle physics. After the achievements of the first years of running, the potential reach for new discoveries and precise measurements at LHC is being extended by pushing further the energy and luminosity frontiers through three upgrades of the accelerator culminating in the High Luminosity Large Hadron Collider (HL-LHC). [...]
[PUBDB-2015-04954]
Report/Dissertation / PhD Thesis
Studien seltener neutroneninduzierter Prozesse und Koinzidenzanalysen zur Bestimmung und Reduktion von Untergrundbeiträgen im COBRA-Experiment
[DESY-THESIS-2015-047]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 130 pp. (2015) [10.3204/DESY-THESIS-2015-047] = Universität Hamburg, Diss., 2015
[PUBDB-2015-01952]
Report/Dissertation / PhD Thesis
Spectra of Conformal Sigma Models
[DESY-THESIS-2015-015]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 129 pp. (2015) [10.3204/DESY-THESIS-2015-015] = Universität Hamburg, Diss., 2015
In this thesis the spectra of conformal sigma models defined on (generalized) symmetric spaces are analysed. The spaces where sigma models are conformal without the addition of a Wess-Zumino term are supermanifolds, in other words spaces that include fermionic directions. [...]
[PUBDB-2015-01957]
Report/Dissertation / PhD Thesis
Propagation of ultra-high-energy cosmic rays and their secondaries with CRPropa
[DESY-THESIS-2015-014]
Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 153 pp. (2015) [10.3204/DESY-THESIS-2015-014] = Universität Hamburg, Diss., 2014
Due to experiments like the Pierre Auger Observatory (Auger) and the Telescope Array (TA), high-statistics data is becoming available on the energy spectrum, the composition and the arrival directions of ultra-high-energy cosmic rays (UHECRs, cosmic rays with energies above $\sim 10^{17}$ eV). To interpret this data in terms of actual astrophysical parameters, or to test astrophysical models against the measured data, dedicated simulations of the propagation of UHECRs from their sources to Earth are needed. [...]
[PUBDB-2020-01446]
Dissertation / PhD Thesis
; ; Dual scale flow during vacuum infusion of composites: experiments and modelling
110 pp. (2015) [10.3204/PUBDB-2020-01446] = Dissertation, Universidad Carlos III de Madrid. Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Química, 2016
Vacuum-assisted resin infusion has emerged in recent years as one of the most promising techniques to manufacture fiber-reinforced polymer-matrix composites. This open mold process uses vacuum as the driving force to infitrate resin through a bagged fiber preform, leading to reduced tooling costs, as compared with the traditional closed mold process (resin transfer molding) [...]
OpenAccess: PDF PDF (PDFA);
[PUBDB-2015-04372]
Dissertation / PhD Thesis/Internal Report
Highly time- and size-resolved ambient trace element analysis and source apportionment
[Diss.; Eidgenössische Technische Hochschule ETH Zürich; Nr. 22520]
Zürich : Zürich, ETH-Zürich 1-163 (2015) [10.3929/ethz-a-010444260] = ETH Zürich, Diss., 2015
[PUBDB-2015-06310]
Master Thesis
Untersuchung der temperatur- und konzentrationsabhängigen Röntgenkleinwinkelstreuung an Mikrogelen
[PUBDB-2015-02685]
Report/Dissertation / PhD Thesis
Phenomenology of Dark Matter from Radio to Gamma Ray Frequencies
[DESY-THESIS-2015-027]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 133 pp. (2015) [10.3204/DESY-THESIS-2015-027] = Universität Hamburg, Diss., 2015
Multiwavelength astronomical observations have been proven to be of crucial relevance in understanding the most fundamental questions in physics. One of the biggest mysteries of nature is the existence of a (still) unidentified type of matter that makes up most of the material universe. [...]
[PUBDB-2016-02802]
Report/Dissertation / PhD Thesis
Resonant Magnetic Scattering Studies Using Synchrotron Radiation and Laser-Generated Extreme Ultraviolet Light
[FZJ-2015-03167]
[PUBDB-2015-06051]
Dissertation / PhD Thesis
Ermittlung des Zusammenhangs zwischen mechanischer Steifigkeit und Wärmetransport über das Festkörpergerüst bei hochporösen Materialien
OpenAccess: PDF PDF (PDFA);
[PUBDB-2015-04152]
Book/Dissertation / PhD Thesis/Internal Report
Propagation and Scattering of High-Intensity X-Ray Pulses in Dense Atomic Gases and Plasmas
[DESY-THESIS-2015-041]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 153 pp. (2015) = Universität Hamburg, Diss., 2015
Nonlinear spectroscopy in the x-ray domain is a promising technique to explore the dynamicsof elementary excitations in matter. X-rays provide an element specificity that allows themto target individual chemical elements, making them a great tool to study complex molecules.The recent advancement of x-ray free electron lasers (XFELs) allows to investigate non-linearprocesses in the x-ray domain for the first time. [...]
[PUBDB-2015-02719]
Book/Dissertation / PhD Thesis
Automated Surface Classification of SRF Cavities for the Investigation of the Influence of Surface Properties onto the Operational Performance
[DESY-THESIS-2015-025]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 174 pp. (2015) [10.3204/PUBDB-2015-02719] = Dissertation, Universität Hamburg, 2015
Superconducting niobium radio-frequency cavities are fundamental for the European XFEL and the International Linear Collider. To use the operational advantages of superconducting cavities, the inner surface has to fulfill quite demanding requirements. [...]
[PUBDB-2017-00594]
Bachelor Thesis
Methodische Konzeptentwicklung und Gestaltung eines Robotergreifers
76 pp. (2015) [10.3204/PUBDB-2017-00594] = Hochschule für Angewandte Wissenschaften Hamburg, Bachelorarbeit, 2015
[PUBDB-2015-03148]
Book/Dissertation / PhD Thesis
Stability of Extra Dimensions in the Inflating Early Universe
[DESY-THESIS-2015-033]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 118 pp. (2015) = Dissertation, Universität Hamburg, 2015
Cosmic inflation is an attractive paradigm to explain the initial conditions of the uni-verse. It can be conveniently described by the dynamics of a single scalar field withinN = 1 supergravity. [...]
[PUBDB-2016-00020]
Master Thesis
Study of nozzle designs for solvated sample delivery at XFEL experiments
Liquid jets are a very good way to deliver crystals of biomolecules into the X-rayinteraction region for Serial Femtosecond Crystallography experiments. The mostpressing improvement for this sample delivery approach is to reduce the flow rateneeded to form a jet. [...]
Restricted: PDF;
[PUBDB-2017-13333]
Dissertation / PhD Thesis
Particle-in-Cell Simulations of PerpendicularSupernova Shock Fronts
96 pp. (2015) [10.3204/PUBDB-2017-13333] = Dissertation, Universität Potsdam, 2015
OpenAccess: PDF;
[PUBDB-2017-11983]
Book/Dissertation / PhD Thesis
; Coherent X-ray diffractive imaging on the single-cell-level of microbial samples
Göttingen : Göttingen University Press, Göttingen Series in X-ray Physics 238 pp. (2015) [10.3204/PUBDB-2017-11983] = Dissertation, University of Goettingen, 2014
Since its first experimental demonstration in 1999, Coherent X-Ray Diffractive Imaging has become one of the most promising high resolution X-Ray imaging techniques using coherent radiation produced by brilliant synchrotron storage rings. The ability to directly invert diffraction data with the help of advanced algorithms has paved the way for microscopic investigations and wave-field analyses on the spatial scale of nanometres without the need for inefficient imaging lenses. [...]
[PUBDB-2015-03937]
Report/Dissertation / PhD Thesis
$O(\alpha_s^3)$ contributions to the heavy flavor Wilson coefficients of the structure function $F_2(x, Q^2)$ at $Q^2 \gg m^2$
[DESY-THESIS-2015-040]
[PUBDB-2015-03619]
Bachelor Thesis
Generation of ultrashort UV pulses and R2PI measurements of deflected molecules
Hamburg 65 pp. (2015) [10.3204/PUBDB-2015-03619] = Universität Hamburg, Bachelorarbeit, 2015
This thesis is about the generation and characterization of ultrashort ultraviolet (UV) laser pulses, resonance-enhanced two photon ionization (R2PI) measurements of indole and the electrostatic deflection of indole.UV pulses are generated from a 39 fs Ti:Sapphire Laser with a central wavelength of 800 nm and a bandwidth of 60 nm. To generate UV pulses, the nonlinear process of harmonic generation in a beta-barium-borate (BBO)-crystal is used. [...]
[PUBDB-2015-02126]
Book/Dissertation / PhD Thesis/Internal Report
Measurement of Neutral Current Drell-Yan production using ATLAS data collected at $\sqrt{s}=8$ TeV
[DESY-THESIS-2015-019]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 170 pp. (2015) = Universität Hamburg, Diss., 2015
This dissertation presents measurements of the pp → Z/γ* → e+e- + X production cross-section and of the Forward-Backward asymmetry, A_{FB}, of dielectron pairs with the ATLAS experiment at the Large Hadron Collider. Both measurements use the dataset collected in 2012 at a center-of-mass energy of √s=8 TeV corresponding to an integrated luminosity of 20.1 fb-1. [...]
[PUBDB-2015-01445]
Dissertation / PhD Thesis/Internal Report
Investigation of transverse-momentum-dependent functions (TMD) in azimuthal spin asymmetries of semi-inclusive deep inelastic nucleon scattering.
[DESY-THESIS-2015-006]
[PUBDB-2015-01688]
Book/Dissertation / PhD Thesis/Internal Report
Charm Production and QCD Analysis at HERA and LHC
[DESY-THESIS-2015-012]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 355 pp. (2015) = Universität Hamburg, Diss., 2015
In this thesis the study of charm production in \ep and \pp collisions is presented. The heavy-quark masses provide a hard scale, allowing the application of perturbative QCD.\newlineA measurement of $D^{+}$-meson production in deep inelastic scattering with the ZEUS detector at HERA is presented. [...]
OpenAccess: ozphdthesis - PDF PDF (PDFA) (additional files); desy-thesis-15-012.title - PS (additional files);
[PUBDB-2015-04732]
Dissertation / PhD Thesis
In Situ Tensile Investigations on AA 7020-T6 Using Synchrotron Diffraction for Texture, Lattice Strain and Defect Density Studies
The present work deals with the texture, dislocation and lattice strain evolution under uniaxial tension. The in situ experiments were carried out using high-energy X-ray diffraction and a 20 kN universal tensile machine. [...]
[PUBDB-2015-05316]
Book/Report/Dissertation / PhD Thesis
; Experimental and Theoretical Studies in Non-Linear Optical Applications: Fiber Oscillators, Regenerative Amplifiers, Simulations on White-Light Generation
[DESY-THESIS-2015-050]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 163 pp. (2015) = Universität Hamburg, Diss., 2015
Compact and stable ultrafast laser sources for electron diffraction experiments are the first step in accomplishing the dream experiment of producing a molecular movie. This thesis work focuses on developing new robust laser sources to enable arbitrary scaling in laser repetition rate, pulse energy, duration and stability as needed to provide sufficient integrated detected electrons for high quality diffraction patterns that can be inverted to real space movies. [...]
OpenAccess: Zia, Haider: Phd Thesis (corrected) - PDF PDF (PDFA); desy-thesis-15-050.title - PDF PDF (PDFA);