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hep-ph2016
Instantaneous Bethe-Salpeter Kernel for the Lightest Pseudoscalar Mesons
Wolfgang Lucha, Franz F. Schöberl
Starting from a phenomenologically successful, numerical solution of the Dyson-Schwinger equation that governs the quark propagator, we reconstruct in detail the interaction kernel…
hep-ph2016
Analytic Bethe-Salpeter Description of the Lightest Pseudoscalar Mesons
Wolfgang Lucha, Franz F. Schöberl
Within the Bethe-Salpeter formalism for instantaneous interactions, we describe, along a totally analytic route, the lightest pseudoscalar mesons by quark-antiquark bound states wh…