| Issue |
EPJ Web Conf.
Volume 204, 2019
XXIV International Baldin Seminar on High Energy Physics Problems “Relativistic Nuclear Physics and Quantum Chromodynamics” (Baldin ISHEPP XXIV)
|
|
|---|---|---|
| Article Number | 10004 | |
| Number of page(s) | 6 | |
| Section | Polarization Phenomena, Spin Physics | |
| DOI | https://doi.org/10.1051/epjconf/201920410004 | |
| Published online | 03 April 2019 | |
https://doi.org/10.1051/epjconf/201920410004
Neutrino propagator in media: spin properties and spectral representation
1 Irkutsk State University, K. Marx str., 1, 664003, Irkutsk, Russia
2 Joint Institute for Nuclear Research, 141980, Dubna, Russia
* e-mail: kaloshin@physdep.isu.ru
** e-mail: dmitry.m.voronin@gmail.com
Published online: 3 April 2019
We have found that in case of propagation of neutrino in the moving matter or external magnetic field there is a fixed 4-axis of polarization, which corresponds to spin projectors commute with a propagator. It means that, states with the definite spin projection on this axis in media have a definite dispersion law. The presence of this axis essentially simplifies the eigenvalue problem and allows one to build spectral representation of the propagator in media.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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