${{\mathit \Upsilon}_{{2}}{(1D)}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \Upsilon}{(1S)}}$   Decay Mode Summary INSPIRE   PDGID:
M177.3
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{3}$ ${{\mathit \Upsilon}_{{2}}{(1D)}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \Upsilon}{(1S)}}$ not seen 426
The following data is related to the above value:
$\Gamma($ ${{\mathit \Upsilon}_{{2}}{(1D)}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \Upsilon}{(1S)}}$ $)/\Gamma($ ${{\mathit \Upsilon}_{{2}}{(1D)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \Upsilon}{(1S)}}$ $)$
$\Gamma_{3}/\Gamma_{1}$