Limits on Coupling of ${{\mathit \mu}}$ to ${{\mathit \nu}_{{x}}}$ as Function of ${\mathit m}_{{{\mathit \nu}_{{x}}}}$

Limits on $\vert \mathit U_{\mathit a\mathit x}\vert ^2$

INSPIRE   PDGID:
S077UAJ
Where $\mathit a$ = ${{\mathit e}}$, ${{\mathit \mu}}$ from $\rho $ parameter in ${{\mathit \mu}}$ decay.
VALUE CL% DOCUMENT ID TECN  COMMENT
• • We do not use the following data for averages, fits, limits, etc. • •
$<0.01$ 68
SHROCK
1981B
 THEO ${\mathit m}_{{{\mathit \nu}_{{x}}}}$=10 GeV
$<2 \times 10^{-3}$ 68
SHROCK
1981B
 THEO ${\mathit m}_{{{\mathit \nu}_{{x}}}}$=40 MeV
$<0.04$ 68
SHROCK
1981B
 THEO ${\mathit m}_{{{\mathit \nu}_{{x}}}}$=70 MeV
References:
SHROCK 1981B
PR D24 1275 General Theory of Weak Processes Involving Neutrinos. 2. Pure Leptonic Decays