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paper

Elimination of the Landau Ghost from Chiral Solitons

arXiv:hep-ph/9410263 · doi:10.1103/PhysRevC.50.3088

Abstract

We show a practical way based on the Källén-Lehmann representation for the two-point functions to eliminate the instability of the vacuum against formation of small sized meson configurations in the chiral $σ$ model.

14 pages, Latex, figures available upon request, submitted to Phys.Rev. C#