Mathematisch-Naturwissenschaftliche Fakultät: Suche
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Studying Galaxy-Galaxy Lensing and Higher-Order Galaxy-Mass Correlations Using the Halo Model
(2009-06-22)
In recent years, the distribution of galaxies in the Universe could be measured up to large distances and over a significant part of the sky. The analysis of this large-scale structure contains a wealth of cosmological ...
Multi-scale chiral dynamics
(2009-07-21)
In this work, we examine two possible extensions of the low-energy effective field theory of quantum chromodynamics (QCD), called chiral perturbation theory (ChPT). Both those extensions are related to the presence of ...
Phenomenological Aspects of Mirage Mediation
(2009-03-03)
We consider the possibility that string theory vacua with spontaneously broken supersymmetry and a small positive cosmological constant arise due to hidden sector matter interactions, known as F-uplifting/F-downlifting. ...
High-Spin γ-Ray Spectroscopy of 124Ba, 124Xe and 125Xe
(2009-08-27)
Rotational spectra had been observed for the first time in excited atomic nuclei in 1938. This observation was attributed to the deviation from spherical shape. In quantum mechanics, when a perfectly spherical system ...
Reformulation of the Hermitean 1-Matrix Model as an Effective Field Theory
(2009-07-22)
The formal Hermitean 1-matrix model is shown to be equivalent to an effective field theory. The correlation functions and the free energy of the matrix model correspond directly to the correlation functions and the free ...
Measurement of neutral current deep inelastic e+ p scattering cross sections with longitudinally polarized positrons with ZEUS at HERA
(2009-09-02)
Measurements of neutral current deep inelastic scattering of protons colliding with longitudinally polarized positrons, performed with data recorded in years 2006 and 2007 with the ZEUS detector, corresponding to an ...
Oberflächencharakterisierung von III-V MOCVD-Filmen aus heterozyklischen Single Source Precursoren
(2009-09-03)
Oberflächencharakterisierung von III-V MOCVD-Filmen aus heterozyklischen Single Source Precursoren In vielen mikro- und optoelektronischen Bauteilen finden Antimon-haltige Verbindungshalbleiter Verwendung. Insbesondere ist ...
Wasserstoffeinlagerung an Ermüudungsrissen der Aluminiumlegierung 6013 unter korrosiver Umgebung
(2009-08-25)
Das Ziel der vorliegenden Arbeit besteht im ortsaufgelösten Nachweis einer erhöhten Wasserstoffkonzentration im plastisch deformierten Bereich von Ermüdungsrissen einer unter korrosiver Umgebung zyklisch verformten ...
A controlled one and two atom-cavity system
(2009-10-08)
In this thesis I present an experimental realization of controlled systems consisting of trapped neutral atoms strongly coupled to a high-finesse optical resonator. These systems enable the exploration of atom-light ...
Efficient sub-Doppler Transverse Laser Cooling of an Indium Atomic Beam
(2009-09-10)
Laser cooled atomic gases and atomic beams are widely studied samples in experimental research in atomic and optical physics. For the application of ultra cold gases as model systems for e.g. quantum many particle systems, ...