Heavy sterile neutrinos: Bounds from big-bang nucleosynthesis and SN 1987A
arXiv:hep-ph/0008138 · doi:10.1016/S0550-3213(00)00566-6
Abstract
Cosmological and astrophysical effects of heavy (10 - 200 MeV) sterile Dirac neutrinos, mixed with the active ones, are considered. The bounds on mass and mixing angle from both supernovae and big-bang nucleosynthesis are presented.
19 pages, 5 figures, 1 table. Some references added