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The Off Shell $ρ$-$ω$ Mixing in the QCD Sum Rules

T. Hatsuda·E. M. Henley·Th. Meissner·G. Krein
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Abstract

The $q^2$ dependence of the $ρ-ω$ mixing amplitude is analyzed with the use of the QCD sum rules and the dispersion relation. Going off shell the mixing decreases, changes sign at $q^2 \simeq 0.4 m_ρ^2 > 0$ and is negative in the space like region. Implications of this result to the isospin breaking part of the nuclear force are discussed.

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T. Hatsuda, E. M. Henley, Th. Meissner, G. Krein. 1993-04-26. The Off Shell $ρ$-$ω$ Mixing in the QCD Sum Rules. https://doi.org/10.1103/physrevc.49.452

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