${{\boldsymbol \Upsilon}{(2S)}}$ $\rightarrow$ ${{\boldsymbol \psi}{(2S)}}{{\boldsymbol \eta}_{{c}}}$ INSPIRE search

$\Gamma($ ${{\mathit \Upsilon}{(2S)}}$ $\rightarrow$ ${{\mathit \psi}{(2S)}}{{\mathit \eta}_{{c}}}$ $)/\Gamma_{\text{total}}$
$\Gamma_{19}/\Gamma$
M052R60