${{\mathit B}}$ $\rightarrow$ ${{\mathit K}}{{\mathit \nu}}{{\overline{\mathit \nu}}}$   Decay Mode Summary INSPIRE   PDGID:
S049.275
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{134}$ ${{\mathit B}}$ $\rightarrow$ ${{\mathit K}}{{\mathit \nu}}{{\overline{\mathit \nu}}}$ $<1.6 \times 10^{-5}$ CL= 90% 2617
Category: Lepton Family number ($\mathit LF$) violating modes or $\Delta \mathit B$ = 1 weak neutral current ($\mathit B1$) modes
Note: (B1) Allowed by higher-order electroweak interactions.
The following data is related to the above value:
$\Gamma($ ${{\mathit B}}$ $\rightarrow$ ${{\mathit K}}{{\mathit \nu}}{{\overline{\mathit \nu}}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{134}/\Gamma$