Contributions to a conference proceedings

Heavy ion collisions in the energy region from $0.1A$ to $2A$ GeV are expected to yield information on the Nuclear Equation of State at baryon densities between roughly 1/3 and 3 times the saturation density of cold nuclei. Due to the complexities of heavy ion collision dynamics, the extraction of fundamental nuclear physics from the observables by comparisons with transport model simulations requires a rather complete and accurate systematics of data. [...]

A new theoretical concept of the quantum mechanical processes in spin filter for the separation ofmetastable hydrogen atoms in individual hyperfine substates enables a number of new applications.For example, it is now possible to build a new generation of Lamb-shift polarimeter that canseparate not only 𝛼 but also the 𝛽 substates with mJ=−1/2. This opens up completely newpossibilities for the search of hydrogen atoms in forbidden substates after the bound beta decayof the neutron. [...]