Measurement of low-mass e_s16 e- pair production in 1-A-GeV and 2-A-GeV C-C collision with HADES
Keywords
conference: Estes Park 2008/08/18, nucleus nucleus: nuclear reaction, heavy ion: scattering, p p: interaction, quark, jet
Abstract
HADES is a secondary generation experiment operated at GSI Darmstadt with the main goal to study dielectron production in proton, pion and heavy ion induced reactions. The first part of the HADES mission is to reinvestigate the puzzling pair excess measured by the DLS collaboration in C_s16C and Ca_s16Ca collisions at 1AGeV. For this purpose dedicated measurements with the C_s16C system at 1 and 2AGeV were performed. The pair excess above a cocktail of free hadronic decays has been extracted and compared to the one measured by DLS. Furthermore, the excess is confronted with predictions of various model calculations.
