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Fate of QCD sum rules or fate of vector meson dominance in a nuclear medium

Stefan Leupold
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Abstract

A current-current correlator with the quantum numbers of the omega meson is studied in a nuclear medium. Using weighted finite energy sum rules and dispersion relations for the current-nucleon forward scattering amplitude it is shown that strict vector meson dominance and QCD sum rules are incompatible with each other. This implies that at least one of these concepts -- which are both very powerful in the vacuum -- has to fade in the nuclear environment.

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Stefan Leupold. 2006-04-06. Fate of QCD sum rules or fate of vector meson dominance in a nuclear medium. https://arxiv.org/abs/hep-ph/0604055

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