Documents in process

When an electronically excited atom or molecule is embedded in a chemical environment as, e.g., in a liquid or a loosely bound cluster, it can de-excite through mechanisms where neighboring atoms or molecules are actively participating in the decay: either by donating or accepting energy or electrons. For such nonlocal decay channels, nuclear dynamics play a crucial role as they have a direct impact on the decay efficiency itself. [...]

Advances in X-ray and neutron sources, as well as in area-detector technologies, enable the recording of several terabytes of raw two-dimensional detector data in a single experiment. While several efficient integration and conversion tools are available for data collected in transmission geometry, analogous solutions for grazing-incidence diffraction (including grazing-incidence X-ray diffraction and grazing-incidence wide-angle X-ray scattering) experiments have not yet achieved the same level of efficiency. [...]

Simplified Template Cross Sections (STXS) have been adopted by the LHC experiments as a common framework for Higgs measurements. Their purpose is to reduce the theoretical uncertainties that are directly folded into the measurements as much as possible, while at the same time allowing for the combination of the measurements between different decay channels as well as between experiments. [...]

We review lattice results related to pion, kaon, D-meson, B-meson, and nucleon physics with the aim of making them easily accessible to the nuclear and particle physics communities. More specifically, we report on the determination of the light-quark masses, the form factor f+(0) arising in the semileptonic K→π transition at zero momentum transfer, as well as the decay-constant ratio fK/fπ and its consequences for the Cabibbo–Kobayashi–Maskawa (CKM) matrix elements Vus and Vud. [...]

High-pressure high-temperature synthesis in laser-heated diamond anvil cells provides a direct pathway tostabilize polymeric and oligomeric nitrogen units, often inaccessible under ambient conditions due to the stability of theN2 molecule. Here we report the high-pressure reactivity of antimony with molecular nitrogen, leading to the discoveryof two distinct binary nitrides [...]

The side channels that occur during percussion drilling in stainless steel with ultrafast lasers with linear or circular polarization were observed using high-speed X-ray imaging, capturing the dynamic process in real-time and thus providing primary insights into their formation dynamics. We identified two distinct phenomena directly linked to the formation of side channels: (1) deflection of the borehole tip and (2) melt-induced obstructions that alter the propagation of the laser radiation. [...]

The demand for metal alloys that can perform at extreme temperatures above1100 °C while remaining manufacturable has sparked renewed interest inprintable oxide dispersion strengthened (ODS) alloys. Recently, NASA devel-oped an ODS alloy designed for additive manufacturing, known as GRX-810,which has demonstrated exceptional tensile and creep performance at tem-peratures of 1093 °C and higher [...]

The modern way to understand symmetries of a quantum field theory is via its topological defects in various dimensions. In this contribution to the proceedings, we focus on line defects in 2dQFT and we point out that topological defects naturally embed into a larger class, namely, translation invariant defects. [...]