${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit K}_{{{1}}}{(1270)}^{\pm}}{{\mathit K}^{\mp}}$  Decay Mode Summary INSPIRE   PDGID:
M070.131
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level
P(MeV/c)  
$\Gamma_{102}$ ${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit K}_{{{1}}}{(1270)}^{\pm}}{{\mathit K}^{\mp}}$ $<3.0 \times 10^{-3}$ CL= 90% 1240
Category: Decays involving hadronic resonances
The following data is related to the above value: