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arXiv · hep-ph/0011278

Isospin Symmetry Breaking and the $ρ-ω$-System

H. Fritzsch·A. S. Muller
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Abstract

Simple quark models for the low lying vector mesons suggest a mixing between the u- and d-flavors and a violation of the isospin symmetry for the $ρ-ω$- system much stronger than observed. It is shown that the chiral dynamics, especially the QCD anomaly, is responsible for a restoration of the isospin symmetry in the $ρ-ω$-system.

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H. Fritzsch, A. S. Muller. 2000-11-22. Isospin Symmetry Breaking and the $ρ-ω$-System. https://doi.org/10.1016/s0920-5632(01)01141-0

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