Invariant mass distributions of $\Lambda$ candidates in events with a trigger hadron for the lower ($1.5 < \pt < 2.5$ GeV/$c$, left) and higher ($2.5 < \pt < 4.0$ GeV/$c$, right) associated momentum ranges. A double-sided Crystal Ball + linear background function is used to fit the data. The signal and side-band (SB) regions are highlighted in green and orange, respectively. The SB region is used to subtract the combinatorial background from the correlation distributions.