${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\overline{\mathit \nu}}}{{\mathit \nu}}$  Decay Mode Summary INSPIRE   JSON  (beta) PDGID:
S041.273
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{642}$ ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\overline{\mathit \nu}}}{{\mathit \nu}}$ ($2.3$ $\pm0.7$) $ \times 10^{-5}$ 2617
Category: Lepton Family number ($\mathit LF$) or Lepton number ($\mathit L$) or Baryon number ($\mathit B$) violating modes, or/and $\Delta \mathit B$ = 1 weak neutral current ($\mathit B1$) modes
Note: (B1) Allowed by higher-order electroweak interactions.
The following data is related to the above value:
$\Gamma({{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\overline{\mathit \nu}}}{{\mathit \nu}})/\Gamma_{\text{total}}$
$\Gamma_{642}/\Gamma$