Abstract
Previous authors have used the present mass density of the universe to constrain the masses of stable, left-handed neutrinos. We generalize these arguments to constrain the masses of stable, right-handed neutrinos which interact with strength GGF. Light neutrinos (1 MeV) are constrained to be less massive than 100 eV-2 keV, depending upon G and whether they are of the Dirac or Majorana type. Heavy neutrinos must be more massive than (GFG) GeV, and less massive than about 10 TeV.
Original language | English (US) |
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Pages (from-to) | 213-216 |
Number of pages | 4 |
Journal | Physical Review D |
Volume | 25 |
Issue number | 1 |
DOIs | |
State | Published - 1982 |
Bibliographical note
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