Faculties of University Bonn: Search
Now showing items 11-20 of 139
Das Elektromagnetische Kalorimeter des P̄ANDA-Detektors: Prototypmessungen und Simulationen
(2022-03-07)
Im Standardmodell der Teilchenphysik beschreibt die Quantenchromodynamik (QCD) die Interaktion von Quarks und Gluonen. Die starke Wechselwirkung erzeugt eine Fülle an Bindungszuständen, die Hadronen. Die meisten der bisher ...
Design and Development of Depleted Monolithic Active Pixel Sensors with Small Collection Electrode for High-Radiation Applications
(2021-09-27)
Depleted monolithic active pixel sensors (DMAPS) have emerged as a low material and low cost alternative to the established hybrid technology. In this thesis, two large scale prototype chips that feature a fast column-drain ...
3D-Silicon and Passive CMOS Sensors for Pixel Detectors in High Radiation Environments
(2020-10-30)
The future upgrade of the Large Hadron Collider to the High-Luminosity LHC demands new pixel detectors that can operate in environments with exceptionally high radiation. This requires investigations into new radiation-tolerant ...
From galaxies to the cosmic web and back: the interplay of different scales in galaxy formation and cosmic reionization
(2020-10-08)
The evolution of the Universe is primarily governed by gravity, that triggers the development of a complex web-like distribution of galaxies. The latter are embedded in larger structures, called haloes, mainly composed by ...
Calabi-Yau Manifolds and Feynman Integral Computations: The Family of Banana Feynman Graphs
(2022-01-17)
In this thesis we use geometrical and string theoretic inspired methods to compute Feynman integrals. We analyze the important family of l-loop banana Feynman graphs. For this we relate the abstract l-loop Feynman integral ...
Measurement of the γn→K0Σ0 photoproduction at the BGOOD experiment and the relation to possible pentaquark states
(2022-04-08)
Hadrons are particles consisting of quarks bound by the strong force. Ground states and lower lying
excitations can be described successfully as mesons consisting of quark-antiquark pairs and baryons
consisting of three ......
Accumulation and Clearing of Ions in Circular Electron Accelerators
(2020-09-02)
Modern sychrotron light sources have to provide stable storage for electron beams with high charge densities to make brilliant synchrotron radiation available to users. Since requirements on the brilliance of the radiation ...
From star formation to regional distribution: Influences on the embedded cluster mass function
(2021-07-02)
In this work we study the embedded cluster mass function (ECMF), meaning the mass distribution
function of embedded clusters. Embedded clusters are fully or partially enclosed in interstellar gas,
dust and molecular ...
Three Pion Scattering at Maximal Isospin from Lattice QCD at Physical Mass
(2021-01-07)
In this work the scattering of two pions in $I = 2$ and three pions in $I = 3$ is analyzed with lattice QCD. The process is computed on three Wilson clover twisted mass ensembles generated by the ETMC with total momentum ...
Messung von Polarisationsobservablen in der 2π0-Photoproduktion mit dem Crystal-Barrel/TAPS-Experiment
(2021-03-17)
Die Theorie der starken Wechselwirkung ist im Energiebereich ihrer Bindungszustände, der Mesonen und Baryonen, nicht störungstheoretisch behandelbar. Durch die Untersuchung des Anregungsspektrums der Baryonen kann ein ......