\hline MC & nominator  & den & $\epsilon_{\mathrm{trigger}}$ $\pm \sigma_{stat}}$ \\\hline
  ee & 4719 & 4922 &    0.959 $\pm$ 0.113       \\
  \mu\mu   & 5163 & 4864 &    1.061 $\pm$ 0.543       \\
  e\mu   & 7764 & 8357 &    0.929 $\pm$ 0.093       \\
  && RT    1.086 $\pm$ 0.305  $\pm$ 0.067     \\\hline