${{\mathit \eta}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$   Decay Mode Summary INSPIRE   PDGID:
S014.14
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{32}$ ${{\mathit \eta}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ $<5 \times 10^{-6}$ CL= 90% 210
Category: Charge conjugation ($\mathit C$), Parity ($\mathit P$), Charge conjugation ${\times }$ Parity ($\mathit CP$), or Lepton Family number ($\mathit LF$) violating modes
Note: (C) CHARGE CONJUGATION ($\mathit C$) INVARIANCE
Note: $\mathit C$ parity forbids this to occur as a single-photon process.
The following data is related to the above value:
$\Gamma($ ${{\mathit \eta}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{32}/\Gamma$