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HK: Fachverband Physik der Hadronen und Kerne

HK 34: Postersitzung

HK 34.72: Poster

Donnerstag, 13. März 2008, 14:00–16:00, Poster C3

QCD Sum Rules for the D-Meson at finite Density — •Thomas Hilger¹, Ronny Thomas², and Burkhard Kämpfer^1,2 — ¹Institut für Theoretische Physik, TU Dresden, 01062 Dresden, Germany — ²Forschungszentrum Dresden-Rossendorf, PF 510119, 01314 Dresden, Gemany

We consider the D-meson in nuclear matter at finite density and zero temperature in view of the future experiments within the CBM and PANDA projects at FAIR. Therefore QCD sum rules are applied to the heavy-light pseudoscalar current of the D-meson. This extends our investigations of light vector mesons [1] and nucleons [2]. While for these hadrons four-quark condensates play a significant role for density modifications of spectral densities, the D-meson properties also depend strongly on the chiral condensate (in QCD sum rules for light vector mesons the chiral condensate is suppressed by the light quark mass). The importance of the large charm quark mass as a new scale and amplifier of the chiral condensate and the impact of various condensates (which mix under renormalization) on the D-meson mass are discussed.