Acceptance, efficiency, acceptance x efficiency in pp collisions at a center-of-mass energy of 5.02 TeV at midrapidity ($|y_\omega| < 0.8$) as a function of omega transverse momentum ($p_{\rm T}$).

Acceptance is defined as: $N_{\omega, acc.}$/$N_{\omega, gen.}$ and efficiency is defined as $N_{\omega, rec.}$/$N_{\omega, acc.}$.
$N_{\omega, gen.}$: Number of generated $\omega$ mesons within the $|y|< 0.8$ window which decays into ee pairs.
$N_{\omega, acc.}$: Number of $\omega$ mesons within the $|y|< 0.8$ window which decays into ee pairs and for which the decay electrons and positrons are within the fiducial detector acceptance: and dielectron decay ($\omega \to ee$) and the daughter particles ($ee$) within fiducial acceptance: $|\eta_{e}|< 0.8$ \& \pte$> 0.2$ \GeVc.
$N_{\omega, rec.}$: Number of $\omega$ (within $|y|< 0.8$) reconstructed from the daughter particles that are within the fiducial acceptance: $|\eta_{e}|< 0.8$ \& \pte$> 0.2$ \GeVc and passed the track