Contribution to a book

The large moment method can be used to compute a large number of moments of physical quantities that are described by coupled systems of linear differential equations. Besides these systems the algorithm requires a certain number of initial values as input, that are often hard to derive in a preprocessing step. [...]

We present results for the heavy-fermionic corrections to the non-singlet heavy-quark form factors at three-loop order recently obtained..

The discovery of a diffuse flux of high energy neutrinos has opened a new era in the field of neutrino astronomy. Up to now only one high energy neutrino has an identified astrophysical counterpart, the blazar TXS 0506+056. [...]

We report on a recent calculation of inclusive Z boson production in proton-lead collisions at theLHC taking into account the transverse momenta of the initial partons [1]. In the calculation the frameworkof $k_T$-factorization has been used. [...]

We explore the possibility to include small-x dynamics effects in the parton branching (PB) approach to transverse momentum dependent (TMD) parton distribution functions. To this end, we first revisit the PB method at leading order, presenting a new fit to inclusive-DIS precision data, and performing a numerical study of the dynamic soft-gluon resolution scale. [...]

Penetration lengths in the millimetre range make hard x-rays above 60 keV a well-suited tool for non-invasive probing of small specimens buried deep inside their surroundings, and enable studying individual components inside assembled, complex devices (solar cells, batteries etc.). The real-space resolution of typical imaging modalities like fluorescence mapping, scanning SAXS and WAXS depend on the available beam size. [...]

The Göttingen Instrument for Nano-Imaging with X-ray (GINIX) is a holography endstation located at the P10 coherence beamline at PETRA III, designed and operated by the University of Göttingen in close collaboration with DESY Photon science Hamburg [1-2]. GINIX is designed as a waveguide based holography experiment with a Kirkpatrick-Baez nanofocus. [...]

The aim of this study is to investigate the internal damage of tire rubber materials due to cavitation. The formation and the growth of cavities (= defects, holes, voids) is induced by multiaxial stress situations, which occur, for instance, in rubber parts with inhomogeneous strain distribution, such as for deflected tire treads. [...]

The three-dimensional (3D) architecture of organs, tissues and cells together with the spatial distribution of specific molecules, both enables and drives the close interactions between hosts and microbes. To image the 3D anatomy and molecular composition of an animal-microbe system at a single cell scale we developed a correlative workflow combining phase-contrast synchrotron radiation based micro-computed tomography (PC-SRμCT) and mass spectrometry imaging (MSI). [...]

Microtomography using synchrotron radiation has proven to be a valuable tool for characterizing samples within biology, medical science, paleontology and materials science. A variety of attenuation contrast and phase-contrast imaging techniques were established to focus on spatial resolution, density resolution, and temporal resolution. [...]