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arXiv · hep-ph/9910525

Low Energy Constants from High Energy Theorems

Silas R. Beane
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Abstract

New constraints on resonance saturation in chiral perturbation theory are investigated. These constraints arise because each consistent saturation scheme must map to a representation of the full QCD chiral symmetry group. The low-energy constants of chiral perturbation theory are then related by a set of mixing angles. It is shown that vector meson dominance is a consequence of the fact that nature has chosen the lowest-dimensional nontrivial chiral representation. It is further shown that chiral symmetry places an upper bound on the mass of the lightest scalar in the hadron spectrum.

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Silas R. Beane. 1999-10-27. Low Energy Constants from High Energy Theorems. https://doi.org/10.1103/physrevd.61.116005

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