${{\mathit W}^{+}}$ $\rightarrow$ invisible  Decay Mode Summary INSPIRE   JSON  (beta) PDGID:
S043.11
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{12}$ ${{\mathit W}^{+}}$ $\rightarrow$ invisible ($1.4$ $\pm2.8$) $ \times 10^{-2}$
Note: This represents the width for the decay of the ${{\mathit W}}~$boson into a charged particle with momentum below detectability, p$<200$ MeV.
The following data is related to the above value:
$\Gamma({{\mathit W}^{+}}$ $\rightarrow$ invisible$)$
$\Gamma_{12}$