On the absence and presence of pole(s) in fermion propagator in the simple model with mass generation

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/127875Within the Pauli-Villars regularization technique the fermion propagator is studied in the framework of Schwinger-Dyson equations in the Euclidean space. Making the generalization of Fukuda and Kugo proposals, the analytical continuation is performed into the timelike region of fourmomenta. The massive gauge boson kernel is considered and the fermion propagator pole structure is discussed in detail.13 pp, references changed, introductory part condensed, results unchangedHigh Energy Physics - PhenomenologyOn the absence and presence of pole(s) in fermion propagator in the simple model with mass generationtext