E-Dissertationen: Search
Now showing items 1-10 of 37
Search for Neutral Higgs Bosons of the MSSM decaying to τhad τhad in proton-proton collisions at √s = 8 TeV with the ATLAS detector
(2016-11-21)
A search for the neutral Higgs bosons predicted by the Minimal Supersymmetric Standard Model, h, H and A, is presented in this thesis. It is based on a data sample with an integrated luminosity of Lint = 19:5 ......
Physical processes behind the periodic radio and gamma-ray emission from the X-ray binary LS I +61°303
(2016-07-21)
X-ray binaries are binary stars composed of a normal star and a compact object which, via Roche-lobe overflow or wind accretion, accretes matter from the companion. X-ray emission from these objects can be either thermal ...
The evolution of low-metallicity massive stars
(2016-08-11)
Massive star evolution taking place in astrophysical environments consisting almost entirely of hydrogen and helium – in other words, low-metallicity environments – is responsible for some of the most intriguing and energetic ...
Messung der Doppelpolarisationsobservable G in der Reaktion γ p → p η mit dem Crystal-Barrel/TAPS-Experiment an ELSA
(2016-08-10)
Im Rahmen dieser Arbeit wurden Experimente mit linear polarisierten Photonen an einem longitudinal polarisierten Butanoltarget durchgeführt und über Schnitte an die Messdaten wurde die Reaktion γ p → p η ......
Ultrakalte Erbiumatome in einer CO2-Laser Dipolfalle
(2016-09-06)
Mit Hilfe ultrakalter Gase sind in der Physik zahlreiche neue Forschungsgebiete erschlossen worden, es gelang beispielsweise die Realisierung atomarer Bose-Einstein Kondensate und atomarer quantenentarteter Fermigase oder ...
Prompt Production of Hadronic Molecules and Rescattering of Final States in Heavy Hadron Decays
(2016-07-29)
The $B$ factories and high energy hadron colliders have accumulated unprecedented data samples in the past decade, and a dramatic progress has been made in hadron spectroscopy. The discovery of many new unexpected states ...
Quantensimulation von relativistischen Effekten mit ultrakalten Atomen in variablen optischen Gitterpotentialen
(2016-09-13)
In dieser Arbeit werden ultrakalte Rubidiumatome (87Rb) in variablen eindimensionalen Gitterpotentialen untersucht, was die Realisierung einer Veselago-Linse für Materiewellen sowie die direkte Beobachtung topologisch ...
Dispersive analysis of charmed meson decays
(2016-08-09)
The Standard Model comprises most of today's knowledge of particle physics and is overall well tested and understood. However the dynamics of strong interactions, given by Quantum Chromodynamics (QCD), are still a challenge ...
The data acquisition for the BGO-OD experiment
(2016-07-07)
The BGO-OD experiment at ELSA was constructed to study meson-photoproduction.A main focus of the experiment is on associated strangeness and vector meson production.As these reactions are dominated by t-channel contributions ...
Measurement of the Associated Production of a Single Top Quark and a W Boson in Single-Lepton Events with the ATLAS Detector
(2016-06-10)
The production of a single top quark in association with a W boson (Wt) is measured with the ATLAS detector using proton-proton collision events with one lepton, three jets and missing transverse energy at √s = 8 TeV. ...