Neutrino propagator in media: spin properties and spectral representation

被引：0
作者：
Kaloshin, Alexander [1 ,2 ]
Voronin, Dmitry [1 ]
机构：
[1] Irkutsk State Univ, K Marx Str 1, Irkutsk 664003, Russia
[2] Joint Inst Nucl Res, Dubna 141980, Russia
来源：
XXIV INTERNATIONAL BALDIN SEMINAR ON HIGH ENERGY PHYSICS PROBLEMS: RELATIVISTIC NUCLEAR PHYSICS AND QUANTUM CHROMODYNAMICS (BALDIN ISHEPP XXIV) | 2019年 / 204卷
关键词：
OSCILLATIONS; MATTER;
D O I：
10.1051/epjconf/201920410004
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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.
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页数：6
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