Charged hadrons and leptons identification at HADES

The HADES spectrometer installed at GSI Darmstadt is devoted to the study of the production of di- lepton pairs from vector meson decays in relativistic nucleus-nucleus collisions, as well as proton- and pion-induced reactions. Extraction of rare lepton pairs in high hadron multiplicity events requires an efficient particle identification ( PID). In HADES charged particles momentum is measured by a tracking system surrounding the toroidal super conducting magnet, and velocity and energy loss is provided by a TOF detector. Leptons are identified by a Rich as well as a Shower detector. The particle identification method is using full experimental information from all subdetectors. To demonstrate the method performance, single particle spectra of charged hadrons and leptons from C+C at 2 A GeV will be presented and compared with results of corresponding simulations. The proton and pion yields an m T and rapidity distributions will be compared with existing data. Very preliminary results of lepton analysis will be shown as well.