Low Energy Constants from High Energy Theorems

Preprint

28 October 1999

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/9910525

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.

Keywords

LOW ENERGY CONSTANTS
PERTURBATION THEORY
CHIRAL PERTURBATION
ENERGY THEOREMS
CHIRAL SYMMETRY
THEOREMS NEW
SATURATION
QCD

All Related Versions

Version 1, 1999-10-28, ArXiv
Published version: Physical Review D, 61 (11), 116005.

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