Properties of predictive formulation of the Nambu-Jona-Lasinio model and ghost problem

Abstract

Recently proposed by Battistel et al. "predictive formulation of the NJL model" is discussed and its connection with the differential regularization is noted. The principal problem of this formulation is a non-physical singularity (Landau pole) in meson propagators. A modification of the formulation, which is free of the Landau pole and conserves main features of the approach, is proposed.

arXiv commentJournal version (8 pages, no figures)

References in corpus (5)

• Consistency in Regularizations of the Gauged NJL Model at One Loop Level
• Searching for Quantum Solitons in a 3+1 Dimensional Chiral Yukawa Model
• Extension of the Nambu--Jona-Lasinio model at high densities and temperatures by using an implicit regularization scheme
• Elimination of the Landau Ghost from Chiral Solitons
• A predictive formulation of the Nambu--Jona-Lasinio model

Cited by in corpus (1)

• From scale properties of physical amplitudes to a predictive formulation of the Nambu-Jona-Lasinio model