HADES

The study of strongly interacting matter under extreme conditions in terms of temperature and pressure has moved more and more in the focus of high energy physics over the last decades. These conditions can be created in the collision of heavy-ions at various facilities around the world, together covering a broad range of collision energies starting in the GeV region and ranging up to energies of several TeV. [...]

Sensors for high rate charge particle tracking have to withstand the harsh radiation doses deposited by the particles to be sensed. This holds particularly for the novel CMOS Monolithic Active Pixel Sensors, which are considered a promising sensor technology for future vertex detectors due to their very light material budget and excellent spatial resolution. [...]

The global polarization of {\Lambda} hyperons along the total orbital angular momentum of a relativistic heavy-ion collision is presented based on the high statistics data samples collected in Au+Au collisions at \sqrt{s_{NN}} = 2.4 GeV and Ag+Ag at 2.55 GeV with the High-Acceptance Di-Electron Spectrometer (HADES) at GSI, Darmstadt. This is the first measurement below the strangeness production threshold in nucleon-nucleon collisions. [...]