Köln 2004 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 14: Poster Session: Heavy Ions

HK 14.5: Poster

Dienstag, 9. März 2004, 13:30–15:30, Foyer

Dilepton Analysis in the HADES Spectrometer for C+C at 2 AGeV Data — •J. Otwinowski — II. Physikalisches Institut, Universität Gießen

The light meson dilepton analysis in the HADES detection system is based on an invariant mass reconstruction of their decay into e⁺e⁻. Methods of the dilepton signal reconstr uction in the HADES spectrometer will be presented. Particulary important is the reduction of a huge combinat orial background coming out from wrong combinations of positrons and electrons. A purity of the signal recons truction is determind by using the GEANT simulation with a realistic HADES geometry and detector response.