${{\mathit \chi}_{{{c1}}}{(3872)}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \eta}}$  Decay Mode Summary INSPIRE   JSON  (beta) PDGID:
M176.34
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{24}$ ${{\mathit \chi}_{{{c1}}}{(3872)}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \eta}}$ $<5 \times 10^{-3}$ CL= 90% 1887
The following data is related to the above value:
$\Gamma({{\mathit \chi}_{{{c1}}}{(3872)}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \eta}})/\Gamma({{\mathit \chi}_{{{c1}}}{(3872)}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit J / \psi}{(1S)}})$
$\Gamma_{24}/\Gamma_{3}$