${{\mathit \Upsilon}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$  Decay Mode Summary INSPIRE   JSON  (beta) PDGID:
M049.115
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{124}$ ${{\mathit \Upsilon}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$ $<1.30 \times 10^{-4}$ CL= 90%
Category: Radiative decays
Note: 2${\mathit m}_{{{\mathit \tau}}}<$ M(${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$) $<$ 9.2 GeV
The following data is related to the above value:
$\Gamma({{\mathit \Upsilon}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit A}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \tau}^{+}}{{\mathit \tau}^{-}})/\Gamma_{\text{total}}$
$\Gamma_{124}/\Gamma$