Corpus ID: 233169090

Neutrino collective effects during their decoupling era in the early universe

@inproceedings{Sawyer2021NeutrinoCE,
  title={Neutrino collective effects during their decoupling era in the early universe},
  author={R. Sawyer},
  year={2021}
}
There is an accepted approach to calculation of the neutrino flavor density-matrix in the halo of a supernova, in which neutrino amplitudes, not cross-sections, need to be followed carefully in the region above the region of frequent scatterings. The same reasoning and techniques, applied to the evolution of neutrino flavors and energy distributions in the early universe in the era of neutrino decoupling, leads to radical changes in the predictions of the effects of the neutrino-neutrino… Expand

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