Ph.D. Theses

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2025-03-13
11:12
[PUBDB-2025-01037] Dissertation / PhD Thesis
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Performance Evaluationof the FASTPIX Silicon Pixel SensorTechnology Demonstrator for High-PrecisionTracking and Timing
185 pp. () = Dissertation, University of Hamburg, 2024  GO
The advancement of particle physics through current and future collider facilities pushes theboundaries of technology in HEP instrumentation. Experiments at the energy and intensityfrontier focus on high-precision measurements of Standard Model physics and searches forphysics beyond the Standard Model. [...]
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2025-03-12
10:37
OpenAccess [PUBDB-2025-01019] Book/Dissertation / PhD Thesis
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Test Beam Studies of Prototype Module and Test Measurements of MaPSA for the CMS Outer Tracker Phase-2 Upgrade
[DESY-THESIS-2025-005]
Hamburg : Verlag Deutsches Elektronen-Synchrotron DESY, DESY-THESIS 174 pp. () [10.3204/PUBDB-2025-01019] = Dissertation, Universität Hamburg, 2025  GO
The High-Luminosity Large Hadron Collider (HL-LHC) represents a significant leap inthe pursuit of fundamental physics. Scheduled to operate at a center-of-mass energy of14 TeV and a peak instantaneous luminosity up to 7. [...]
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2025-03-05
09:48
[PUBDB-2025-00932] Dissertation / PhD Thesis
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Unfolding the top: Measuring the quantum interference between singly and doubly resonant top-quark production at $\sqrt{s} = 13$ TeV with the ATLAS detector
[CERN-THESIS-2024-330]
184 pp. () = Dissertation, Humboldt University, Berlin, 2024  GO
The production of top-quark pairs $t\bar{t}$ is extensively studied at the Large Hadron Collider (LHC) due to its importance in probing fundamental parameters of the Standard Model (SM) and its role as a background in various searches for physics Beyond the Standard Model (BSM). In particular in conjunction with ttbar, single-top is also an important process in measurements and searches, but less studied and more challenging to treat theoretically. [...]
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2025-02-26
21:12
[PUBDB-2025-00835] Dissertation / PhD Thesis

Understanding the Solubility and Mechanical Elastic Properties of Ti–B–N Thin Films
TU Wien 126 pages () [10.34726/HSS.2024.122523] = Dissertation, TU Wien, 2024  GO
Keramische Hartstoffschichten sind zu einer Notwendigkeit geworden, um die die Eigenschaften von Werkzeugen und Bauteilen zu verbessern und damit deren Lebensdauer zu verlängern. Besonders hervorzuheben ist die Klasse der Übergangsmetallnitride, wobei kubisch flächenzentriertes (kfz) Titannitrid (TiN) als das am häufigsten verwendete und untersuchte Schichtmaterial einen Spezialfall darstellt. [...]
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2025-02-26
12:10
OpenAccess [PUBDB-2025-00829] Book/Dissertation / PhD Thesis
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Search for dark matter using heavy object tagging and angular correlations with missing momentum with one electron or muon with Run 2 data of the CMS Experiment
[DESY-THESIS-2025-004]
Hamburg : Verlag Deutsches Elektronen-Synchrotron DESY, DESY-THESIS 165 pp. () [10.3204/PUBDB-2025-00829] = Dissertation, RWTH Aachen University, 2024  GO
This thesis presents a search for supersymmetry using 138 fb−1 of proton-proton collisionat center-of-mass energy of √s = 13 TeV. The data was collected by the CMS detectorat the LHC at CERN in 2016–2018. [...]
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2025-02-25
12:00
OpenAccess [PUBDB-2025-00811] Book/Dissertation / PhD Thesis
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Development of a Tree-Based Model for the Fast Generation of Large Point Clouds Representing Particle Showers in Calorimeters
[DESY-THESIS-2025-003]
Hamburg : Verlag Deutsches Elektronen-Synchrotron DESY, DESY-THESIS 233 pp. () [10.3204/PUBDB-2025-00811] = Dissertation, RWTH Aachen University, 2025  GO
In High-Energy Physics, detailed and time-consuming simulations are neededto describe particle showers in calorimeters. These particle showers arerecorded as energy deposits (hits) in the cells of the detector. [...]
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2025-02-19
10:56
OpenAccess [PUBDB-2025-00758] Book/Dissertation / PhD Thesis
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From detectors to data: Thermal Characterization of CMS Outer Tracker modules and Measurement of the top quark mass using tt+ jet events
[DESY-THESIS-2025-002]
Hamburg : Verlag Deutsches Elektronen-Synchrotron DESY, DESY-THESIS 248 pp. () [10.3204/PUBDB-2025-00758] = Dissertation, Bergische Universität Wuppertal, 2025  GO
This thesis addresses key challenges in modern particle physics by contributing to threecritical areas: the development of particle detectors, their calibration and the analysis ofdata collected in particle physics experiments. Contributions to these areas are presentedin the context of the Compact Muon Solenoid (CMS) experiment at the Large HadronCollider (LHC).The first part of this work focuses on the development and characterization of a temperaturetest system (Burn-in) for silicon modules, essential components of the CMS OuterTracker Upgrade, a central part of the preparation of CMS for the forthcoming High LuminosityLHC running [...]
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2025-02-07
13:05
[PUBDB-2025-00677] Dissertation / PhD Thesis
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Lamellar gratings for reflective split-and-delay unit in XUV spectral range
UB HSU 1 - 99 () [10.24405/17105] = Dissertation, Helmut-Schmidt-Universität, 2024  GO
Gegenstand dieser Arbeit ist die hochpräzise Herstellung von Silizium-Lamellengitterspiegeln für die reflektierende Split-and-Delay-Unit (SDU) im extremen Ultraviolett- und weichen Röntgenbereich (Photonenenergien von 10 eV bis ~1 keV). Um die gute Reflektivität der Spiegel zu gewährleisten, war es notwendig, eine gute Oberflächenqualität zu erhalten, um die geringe Rauheit zu bewahren und die auftretenden Verformungen zu minimieren. [...]
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2025-02-07
11:48
[PUBDB-2025-00673] Dissertation / PhD Thesis
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Interferometry on small quantum systems at short wavelength
1 - 138 () = Dissertation, University of Hamburg, 2016  GO
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2025-02-07
11:32
[PUBDB-2025-00671] Dissertation / PhD Thesis
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Helium droplets in intense laser fields studied with XUV fluorescence spectroscopy
1 - 92 () = Dissertation, University of Hamburg, 2023  GO
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