"Figure 2 from Methods" of "Measuring spin correlation between quarks during QCD confinement"

Relative contribution to $\Lambda\bar{\Lambda}$ hyperon pair feed-down from PYTHIA 8.2 event generator events, which are simulated through the STAR detector. The individual bins correspond to different $\Lambda\bar{\Lambda}$ hyperon pair parent particle combinations - (1) Both primary, (2) Primary + $\Sigma^0$, (3) Primary + Other heavier hyperon, (4) Both $\Sigma^0$, (5) $\Sigma^0$ + Other heavier hyperon, and (6) Both from other heavier hyperon.