Books

The European X-ray Free-Electron Laser is currently under construction at theDeutsches ElektronenSynchrotron in Hamburg, Germany. This linear accelerator, with a length of 3.4 km,will generate extremely intense and short X-ray laser light pulses with a duration in the femtosecondrange and wavelengths down to 0.05 nm. [...]

Non-perturbative aspects of N = 2 supersymmetric field theories of class S are deeply encoded in the algebra of functions on moduli spaces M-flat of flat SL(N)-connections on Riemann surfaces. Expectation values of Wilson and ’t Hooft supersymmetric line operators are related to holonomies of flat connections, while expectation values of line operators in the low energy effective theory are related to Fock-Goncharov coordinates on M-flat. [...]

The International Linear Collider (ILC) is a proposed linear electron positron collider with a center-of-mass energy of 250 GeV in its first stage. After the discovery of the Higgs boson at the Large Hadron Collider (LHC) at CERN in 2012, the physics goals of the ILC include the measurements of the Higgs boson properties and its interactions, but also measurements of the top quark and searches beyond the Standard Model are part of the ILC program in the different ILC stages. [...]

A measurement of the double differential cross section for inclusive $b$ jet production in proton-proton collisions as well as fraction of $b$ jets in the inclusive jet production is presented as a function of the transverse momentum $p_T$ and the absolute rapidity $|y|$.The data samples were collected in the CMS experiment at LHC during 2016 and correspond to an integrated luminosity of $35.2\,\text{fb}^{-1}$ at a centre-of-mass energy of $13\,\text{TeV}$.The jets are selected with $p_T > 74\,\text{GeV}$ and $|y| < 2.4$; the $b$ jets must contain a $B$ hadron.The measurement has significant statistics up to $p_T \sim \mathcal{O}(\text{TeV})$.Advanced methods of unfolding are performed to extract the signal.It is found that fixed-order calculations with underlying event describe the measurement well..

High-gain Free-Electron Lasers (FEL) constitute a powerful source of intense, short radiation pulses in the XUV and X-ray range that are used in a wide variety of research fields. They typically work in the Self-Amplified Spontaneous Emission (SASE) Mode. [...]

This thesis presents studies investigating the use of adhesives on the active area of silicon strip sensors for the construction of silicon strip detector modules for the ATLAS Phase-II Upgrade. 60 ATLAS07 miniature sensors were tested using three UV cure glues in comparison with the current baseline glue (a non-conductive epoxy).The impact of irradiation on the chemical composition of all adhesives under investigation was studied using three standard methods for chemical analysis: quadrupole time-of-flight mass spectroscopy, gel permeability chromatography and gas chromatography combined with mass spectrometry (GC-MS). [...]

Measurements of the inclusive dijet and trijet production in neutral current deep inelastic ep scattering (DIS) and the inclusive dijet photoproduction (PHP) are presented. The results are based on data from the ZEUS detector at HERA ep collider collected in 2004–2007 and corresponding to integrated luminosities of 295 and 300 inverse pb, respectively..

Thomson scattering, or inverse Compton scattering, is a technique holding the potentialfor the generation of X-radiation of high brilliance on the basis of the photon emission byrelativistic electrons in optical laser fields. When combined with laser-plasma accelerators,purely laser-driven X-ray sources can be realised on a small scale compared to conventionalaccelerator-based sources. [...]

In this thesis, we discuss two different approaches to physics beyond the Standard Model.First, we study a model-independent Effective Field Theory formalism. In particular, wefocus on bosonic CP-even six-dimensional operators. [...]