The Faculty of Mathematics and Natural Sciences: Search
Now showing items 341-350 of 404
Strukturwandel von Chalkogen-Polykationen unter Druck
(2019-08-29)
Im Rahmen dieser Arbeit wurden die strukturellen Umwandlungen von Tellur- und Selen-Polykationen führenden Festkörpern unter dem Einfluss von hohem Druck untersucht. Einkristalle der zu untersuchenden Substanzen in geeigneter ......
Structural change of chalcogen polycations under pressure
This study is about high pressure phase transitions of mostly tellurium polycationic structures. Single crystals of roughly 0,1 mm size were ......
Structural change of chalcogen polycations under pressure
This study is about high pressure phase transitions of mostly tellurium polycationic structures. Single crystals of roughly 0,1 mm size were ......
Top-quark pair production in association with a Z boson in the final state with four charged leptons
(2019-10-29)
The production cross section of a top-quark pair in association with a Z boson is measured in the channel with four reconstructed leptons, using 36.1 fb-1 of proton–proton collisions, collected with the ATLAS ......
Radio Continuum of Galaxies with H2O-Megamaser-Disks
(2019-11-08)
Galaxies with H2O-megamaser-disks are low luminosity active galaxies where 22GHz H2O-maser emission is detected in their accretion disk surrounding the central supermassive black hole (SMBH). Furthermore, ...
Can the halo model describe 2nd- and 3rd-order correlation functions of gravitational lensing consistently?
(2019-11-07)
To understand and model the distribution of and the relation between baryonic and dark matter in the Universe is one of the key challenges in contemporary astrophysics. A well-established theoretical description is given ......
Strong Coupling between Small Atomic Ensembles and an Open Fiber Cavity
(2018-04-12)
In this work I present the experimental realization of a versatile platform for the interplay between light and matter at the single-quanta level. In particular, I demonstrate the high cooperativity of small ensembles of ......
Design eines neuen Lichtpulsersystems sowie Aufbau und Inbetriebnahme der neuen APD Auslese für das Crystal-Barrel-Kalorimeter
(2018-02-21)
Um ein tieferes Verständnis von der Struktur der Nukleonen sowie der starken Wechselwirkung zu erhalten, werden am CBELSA/TAPS-Experiment Doppelpolarisationsmessungen in der Meson-Photoproduktion durchgeführt. Die ...
Nuclear Lattice Investigations of Fundamental Symmetries
(2018-04-10)
Fundamental symmetries (and their violations) play a significant role in active experimental searches of Beyond the Standard Model (BSM) signatures. An example of such phenomena is the neutron Electric Dipole Moment (EDM), ......
EPR distance measurements using triaryl methyl radicals and EPR investigation of electron transfer processes in organic radicals
(2018-04-17)
EPR is a valuable tool for the investigation of biological structures. Most EPR-based distance measurements rely on the site directed spin labeling of the investigated biomolecule, since most biomolecular structures do not ...
Nucleon-nucleon scattering process in Lattice Chiral Effective Field Theory approach up to next-to-next-to-next-to-leading order
(2018-04-23)
We carry out a comprehensive analysis of the neutron-proton interaction up to the third order in the scheme of chiral effective field theory on the lattice. The complete two-pion exchange potential is taken into account ...
Exploration of advanced CMOS technologies for new pixel detector concepts in High Energy Physics
(2018-04-19)
This thesis presents the author’s original concepts for the development of radiation hard monolithic pixel sensors that can replace hybrid pixel sensors in high energy physics experiments. It presents one of the first ...