LEPTONS

Heavy Neutral Leptons, Searches for INSPIRE search

(A) Heavy Neutral Leptons
Stable Neutral Heavy Lepton MASS LIMITS
Mass $\mathit m$ $>39.5$ GeV  CL=95.0%
Heavy Neutral Lepton MASS LIMITS
Astrophysical Limits on Neutrino MASS for ${\mathit m}_{{{\mathit \nu}}}$ $>$ 1 GeV
(B) Other Bounds from Nuclear and Particle Decays
Limits on $\vert \mathit U_{{{\mathit e}}\mathit x}\vert ^2$ as Function of ${\mathit m}_{{{\mathit \nu}_{{x}}}}$
Peak and kink search tests $<1 \times 10^{-7}$   CL=90.0%
Kink search in nuclear ${{\mathit \beta}}$ decay
Searches for Decays of Massive ${{\mathit \nu}}$
Limits on Coupling of ${{\mathit \mu}}$ to ${{\mathit \nu}_{{x}}}$ as Function of ${\mathit m}_{{{\mathit \nu}_{{x}}}}$
Peak search test
Peak search test
Peak Search in Muon Capture
Searches for Decays of Massive ${{\mathit \nu}}$
Limits on $\vert \mathit U_{{{\mathit \tau}}\mathit x}\vert ^2$ as a Function of ${\mathit m}_{{{\mathit \nu}_{{x}}}}$
Limits on $\vert \mathit U_{\mathit a\mathit x}\vert ^2$
Limits on $\vert \mathit U_{1\mathit j}{\times }\mathit U_{2\mathit j}\vert $ as Function of ${\mathit m}_{{{\mathit \nu}_{{j}}}}$