Evaluation of QCD sum rules for HADES
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QCD sum rules are evaluated at finite nucleon densities and temperatures to determine the change of pole mass parameters for the lightest vector mesons $ρ$, $ω$ and $ϕ$ in a strongly interacting medium at conditions relevant for the starting experiments at HADES. The role of the four-quark condensate is highlighted. A few estimates (within a fire ball model and BUU calculations) of dilepton spectra in heavy-ion collisions at 1 AGeV are presented.
contribution to the XL International Winter Meeting on Nuclear Physics, Bormio (Italy), January 20 - 26, 2002
contribution to the XL International Winter Meeting on Nuclear Physics, Bormio (Italy), January 20 - 26, 2002