Publications database

Single-spin asymmetries observed in polarised deep-inelastic scattering are important probes of hadron structure. The Sivers asymmetry provides information about the transverse momentum of the struck quark and can be related to final-state interactions. [...]

Misfit layered compounds (MLCs) are incommensurate super-lattices made up of two repeating subunits and are promising for different applications due to the possibility of a synergetic combination of the properties of the employed sublayers. A means of fine-tuning a specific MLC is to alloy one of the elements in the system [...]

The interface between the semiconductor light absorberand the metal electrode is critical for facilitating the extraction ofphotogenerated charges in photoelectrodes. Achieving a lattice-matchedsemiconductor/electrode interface with low defect density is highlydesirable but remains a challenge for Ta3N5 photoanodes. [...]

Fragmentation functions (FFs) are essential nonperturbative QCD inputs for predicting hadron production cross sections in high energy scatterings. In this study, we present a joint determination of FFs for light charged hadrons through a global analysis at next-to-leading order (NLO) in QCD. [...]

Over the past two decades, laser plasma accelerators (LPAs) have emerged as a groundbreakingtechnology with immense potential for electron acceleration. Their ability to sustainexceptionally high accelerating gradients, on the order of 100 GV/m, and provide electronbunches with only few femtoseconds duration, promises a compact, cost-effective solutionfor numerous industrial, commercial, and medical applications. [...]

We present the results of the 'Fast Calorimeter Simulation Challenge 2022' - the CaloChallenge. We study state-of-the-art generative models on four calorimeter shower datasets of increasing dimensionality, ranging from a few hundred voxels to a few tens of thousand voxels. [...]

A formula for the loss rate of electrons from a stored beam due to the so-called "Touschek Effect" is derived starting with the exact M~ller scattering crosssection. For rectangular distribution of transverse momentum, this formula is integrated explicitly. [...]

The PETRA IV storage ring is a project planned to upgrade the synchrotron light source PETRA III at DESY. The main aim is to decrease the horizontal emittance as low as 20 pmrad. [...]

A comprehensive insight into ultrafast dynamics of photo-switchable materials is desired for efficient control of material properties through light excitation. Here, we study a polycrystalline spin crossover thin film as a prototypical example and reveal the sequential photo-switching dynamics, from local molecular rearrangement to global lattice deformation. [...]