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Relic neutrino asymmetry evolution from first principles
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The exact Quantum Kinetic Equations for a two-flavour active-sterile neutrino system are used to provide a systematic derivation of approximate evolution equations for the relic neutrino asymmetry. An extension of the adiabatic approximation for matter-affected neutrino oscillations is developed which incorporates decoherence due to collisions. Exact and approximate expressions for the decoherence and repopulation functions are discussed. A first pass is made over the exact treatment of multi-flavour partially incoherent oscillations.
Forward citations
Cited by 5 Pith papers
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Sterile Neutrino Dark Matter as a Probe of Inflationary Reheating
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Non-adiabatic transitions in the density matrix formalism
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