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Article
Open AccessPhenomenology of superheavy decaying dark matter from string theory
We study the phenomenology of superheavy decaying dark matter with mass around 1010 GeV which can arise in the low-energy limit of string compactifications. Generic features of string theory setups (such as high ...
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Article
Open AccessDirect numerical simulation of the turbulent flow around a Flettner rotor
The three-dimensional turbulent flow around a Flettner rotor, i.e. an engine-driven rotating cylinder in an atmospheric boundary layer, is studied via direct numerical simulations (DNS) for three different rot...
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Article
Open AccessOn the potential of transfer entropy in turbulent dynamical systems
Information theory (IT) provides tools to estimate causality between events, in various scientific domains. Here, we explore the potential of IT-based causality estimation in turbulent (i.e. chaotic) dynamical...
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Article
Open AccessConstraining light thermal inelastic dark matter with NA64
A vector portal between the Standard Model and the dark sector is a predictive and compelling framework for thermal dark matter. Through co-annihilations, models of inelastic dark matter (iDM) and inelastic Di...
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Article
Open AccessIndirect dark-matter detection with MadDM v3.2 – Lines and Loops
Automated tools for the computation of particle physics’ processes have become the backbone of phenomenological studies beyond the standard model. Here, we present MadDM v3.2. This release enables the fully autom...
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Chapter and Conference Paper
Interface Discontinuities in Spectral-Element Simulations with Adaptive Mesh Refinement
We investigate the discontinuities arising at non-conforming (or non-conformal) interfaces in spectral element method (SEM) simulations. The derivate terms are by definition discontinuous and interface instabi...
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Article
Open AccessIn situ visualization of large-scale turbulence simulations in Nek5000 with ParaView Catalyst
In situ visualization on high-performance computing systems allows us to analyze simulation results that would otherwise be impossible, given the size of the simulation data sets and offline post-processing ex...
