Evaluation of QCD sum rules for HADES
S. Zschocke, B. Kampfer, O. P. Pavlenko, Gy. Wolf
Abstract
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.
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