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Laser–plasma interactions are determined both by plasma dynamics and by the properties of the driving laser pulse. While stimulated Raman scattering has been extensively studied, the influence of spatio-temporal couplings on such instabilities remains largely unexplored. [...]

Accurate mass measurements of proton-rich elements are essential for research in nuclear structure. In the context of the light lanthanide region, nuclear properties are significantly affected by substantial beta-decay Q-values, as well as low or negative proton separation energies, and the confining effects of the Coulomb barrier. [...]

This work presents a new experimental approach for precision x-ray spectroscopy of highly-charged heavy ions in a storage ring. lt deploys novel metallic magnetic microcalorimeters (MMCs) at 0° and 180° on either side of the electron cooler of the recently commissioned CRYRING@ESR at the FAIR/GSI facility. [...]