${{\mathit \Upsilon}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$  Decay Mode Summary INSPIRE   JSON  (beta) PDGID:
M049.70
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{75}$ ${{\mathit \Upsilon}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ ($6.3$ $\pm1.8$) $ \times 10^{-5}$ 4728
Category: Radiative decays
The following data is related to the above value:
$\Gamma({{\mathit \Upsilon}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}})/\Gamma_{\text{total}}$
$\Gamma_{75}/\Gamma$