TL;DR
This paper investigates the infrared behavior of the fermion propagator using spectral representation, leading to a non-perturbative propagator that demonstrates confinement and dynamical mass generation.
Contribution
It introduces a non-perturbative fermion propagator derived from spectral analysis, explicitly showing confinement and mass generation phenomena.
Findings
Demonstrates confinement in the fermion propagator
Shows dynamical mass generation explicitly
Provides a non-perturbative spectral function evaluation
Abstract
Infrared behaviour of the fermion propagator is examined by spectral representation.Assuming asymptotic states and using LSZ reduction formula we evaluate the the lowest order spectral function by definition.After exponentiation of it we derive the non perturbative propagator.It shows confinement and dynamical mass generation explicitly.
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