Left: simultaneous fit of the candidate yield (top) and total $\vtwo$ as a function of the candidate invariant mass (bottom) of \Lc baryons in $6 \pt 8~\GeVc$ in \PbPb collisions for the 30--50\% centrality class. The combinatorial background and the total fit functions are depicted as dotted red curves and blue lines, respectively. The BDT-based selection and the corresponding signal \vtwo are reported in the bottom panel. Top right: raw-yield distribution as a function of the minimum threshold on the BDT prompt score of \Lc baryons in $6 \pt 8~\GeVc$ for the 30--50\% centrality class. The prompt and non-prompt populations, along with their sum, are reported in red, blue, and green, respectively. Bottom right: linear fit to the signal $\vtwo$ of \Lc baryons in $6 \pt 8~\GeVc$ for the 30--50\% centrality class as a function of the non-prompt fraction. The blue band represents the $1\sigma$ confidence interval obtained from the fit.
Figure extracted from paper