The neutrino propagator in matter and its spin properties
D.M.Voronin, A.E.Kaloshin
TL;DR
This paper develops a spectral representation of the neutrino propagator in moving matter with constant density, revealing a polarization axis and classifying propagator poles by spin projection.
Contribution
It introduces a novel spectral representation for the neutrino propagator in matter and identifies a polarization axis that classifies the propagator poles.
Findings
Existence of a 4D polarization axis in matter
Classification of propagator poles by spin projection
Spectral representation of the neutrino propagator in matter
Abstract
A spectral representation for the neutrino propagator in a moving matter with constant density is constructed. It is found that in a matter there exists a 4-dimensional axis of complete polarization, all poles of the propagator are classified according to the values of the spin projection onto this axis.
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