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

2002/11/30 by Alain J. Brizard, Sarah L. McGregor, S. L. McGregor · 6 citations
Physics and Astronomy · #Astrophysics #Astrophysics and Cosmic Phenomena #Dark Matter and Cosmic Phenomena #Electron #Electron neutrino #Neutrino #Neutrino Physics Research #Neutrino oscillation #Nuclear physics #Particle physics #Physics #Plasma #Positron #Symmetry (geometry) #Universe #astro-ph

paper · pdf · doi:10.1088/1367-2630/4/1/397

published in New Journal of Physics 4, 97 (IOP Publishing) · 17 pages, revised version with corrections, to appear in New Journal of Physics

arxiv created 2002/12/06 · openalex publication_date 2002/12/11 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

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.

Citations

• Measuring the Cosmological Lepton Asymmetry through the Cosmic Microwave Background Anisotropy
• Constraints on Neutrino Oscillations Using 1258 Days of Super-Kamiokande Solar Neutrino Data
• New CMBR data and the cosmic neutrino background
• Origin of galactic and extragalactic magnetic fields
• Magnetic field generation from self-consistent collective neutrino-plasma interactions