DSEs, the pion, and related matters
A. Krassnigg, C. D. Roberts
Abstract
We recapitulate on aspects of Dyson-Schwinger equation studies relevant to pseudoscalar mesons: lattice confirmation of the DSE prediction that propagators are nonperturbatively dressed in the infrared; and exact results, e.g., in the chiral limit the leptonic decay constant vanishes for every pseudoscalar meson except the pion.
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