2001/09/18 by A. D. Dolgov, Dolgov, A. D.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0109155
30 pages, 7 figures; talk at XV Rencontres de Physique de La Vallee d'Aoste, March, 2001
arxiv created 2001/10/01 · arxiv updated 2009/11/30
The role of neutrinos in big bang nucleosynthesis is reviewed. Neutrino oscillations in the early universe both in resonance and non-resonance case are briefly discussed. BBN and supernova limits on heavy sterile neutrinos with the mass in 10-100 MeV range are presented and compared with direct experimental bounds.