HADES
Like the CBM experiment, the dilepton spectrometer HADES (High Acceptance DiElectron Spectrometer) at GSI in Darmstadt is used to study hadron properties in nuclear matter. The main difference from CBM lies in the energy range of the heavy-ion collisions and thus in the temperature and baryon density of the produced matter, as well as in the high acceptance and the associated possibilities for reconstructing and measuring very rare particle species. HADES is used to study compressed, comparatively cool nuclear matter in heavy-ion collisions at beam energies of 1 to 2 GeV per nucleon.
Our research group is involved in data analysis. For example, we identify and reconstruct dielectron, pion, and proton tracks, and use these findings to draw conclusions about collision properties such as temperature and density. To do this, we use the experiment’s software framework, which is based on C++ and CERN ROOT. In addition to analyzing experimental data, various types of simulations are also used to determine the efficiency and acceptance of the HADES detector and to estimate the systematic uncertainties in an analysis.
In addition to our analytical work, our research group is actively involved in the operation of the RICH detector. We are particularly busy before and during beam times, preparing the detector for experiments and operating it during beam times.