Linear wave spectrum associated with collective neutrino-plasma interactions in the early universe

Details Linear wave spectrum associated with collective neutrino-plasma interactions in the early universe Linear wave spectrum associated with collective neutrino-plasma interactions in the early universe

2002-11-05

arxiv.org/abs/astro-ph/0211087v2

NewJ.Phys.4:97,2002

Astronomy and Astrophysics

Astrophysics

17 pages, revised version with corrections, to appear in New Journal of Physics

Scientific paper

10.1088/1367-2630/4/1/397

The effects of collective neutrino-plasma interactions on the linear wave spectrum supported by a magnetized electron-positron plasma in the presence of a neutrino-antineutrino medium are investigated. When a pair-symmetric background neutrino-plasma medium is perturbed by space-charge waves (electrostatic waves associated with electron-positron charge separation), our analysis shows that the neutrino and antineutrino fluids also separate and the pair symmetry of the background medium is broken. The cosmological implications of this pair-symmetry breaking mechanism are briefly discussed.

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