QCD sum rules for D and B mesons in nuclear matter

We consider D and B mesons embedded in cold nuclear matter in view of future CBM and PANDA experiments at FAIR. QCD sum rules are applied to pseudoscalar currents with heavy-light quark contents. The impact of various condensates is discussed. The mass splitting of D- anti D and B- anti B mesons as a function of the nuclear matter density is quantified: extrapolated to saturation density it is in the order of 60 and 130 MeV. The genuine chiral condensate q- anti q, amplified by heavy-quark masses, enters the Borel transformed sum rules for the mass splitting beyond linear density dependence. Including strange quark condensates reveals a numerically smaller and opposite effect for the Ds- anti Ds-bar mass splitting. Weinberg type sum rules for the difference of pseudoscalar and scalar spectral moments are discussed.