QCD sum rules for D and B mesons in nuclear matter

QCD sum rules for D and B mesons in nuclear matter

Hilger, T.; Thomas, R.; Kämpfer, B.

QCD sum rules for D and B mesons embedded in cold nuclear matter are evaluated. We quantify the mass splitting of D - D-bar and B - B-bar mesons as a function of the nuclear matter density; extrapolated to saturation density it is in the order of 60 and 130 MeV driven essentially by the condensates , and . The genuine chiral condensate , 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 umerically smaller and opposite effect for the Ds - Ds-bar mass splitting.

  • Physical Review C 79(2009), 025202
  • Lecture (Conference)
    XLVII International Winter Meeting on Nuclear Physics, 26.-30.01.2009, Bormio, Italien
  • Lecture (Conference)
    40. Arbeitstreffen Kernphysik in Schleching, 02.-06.03.2009, Schleching, Deutschland
  • Lecture (Conference)
    DPG Spring Meeting 2009 (Hadronic and Nuclear Physics) in conjunction with the European Nuclear Physics Conference (EuNPC) (Nuclear Physics Board of the European Physical Society (EPS)), 16.-20.03.2009, Bochum, Deutschland

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Publ.-Id: 12468