# Limits on MASSES of Heavy Stable Right-Handed ${{\boldsymbol \nu}}$ (with necessarily suppressed interaction strengths) INSPIRE search

VALUE (GeV) DOCUMENT ID TECN  COMMENT
• • • We do not use the following data for averages, fits, limits, etc. • • •
$>10$ 1
 1982
COSM $\mathit G_{\mathit R}/\mathit G_{\mathit F}$ $<$0.1
$>100$ 1
 1982
COSM $\mathit G_{\mathit R}/\mathit G_{\mathit F}$ $<$0.01
1  These results apply to heavy Majorana neutrinos and are summarized by the equation: ${\mathit m}_{{{\mathit \nu}}}$ $>$1.2 GeV ($\mathit G_{\mathit F}/\mathit G_{\mathit R}$). The bound saturates, and if $\mathit G_{\mathit R}$ is too small no mass range is allowed.
References:
 OLIVE 1982
PR D25 213 Cosmological Bounds on the Masses of Stable, Righthanded Neutrinos