QCD sum rule description of nucleons in asymmetric nuclear matter

We calculate the nucleon parameters in isospin asymmetric nuclear matter using the QCD sum rules. The nucleon self-energies ${\ensuremath{\Sigma}}_{v}$ and ${\ensuremath{\Sigma}}_{s}^{*}$ are expressed in terms of the in-medium values of QCD condensates. Simple approximate expressions for the self-energies are obtained in terms of these condensates. The relation between successive inclusion of the condensates and meson-exchange picture of the nucleon interaction with medium is analyzed. The values of the self-energies and symmetry energy agree with those obtained by the methods of nuclear physics.

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