Residual correlation in two-proton interferometry from $\Lambda$-proton strong interactions

We investigate the residual effect of $\Lambda p$ strong interactions in $\mathrm{pp}$ correlations with one proton from $\Lambda$ decays. It is found that the residual correlation is about 10% of the $\Lambda p$ correlation strength, and has a broad distribution centered around $q\approx 40\hspace{0.5em}\mathrm{MeV}/c.\mathrm{}$ The residual correlation cannot explain the observed structure on the tail of the recently measured $\mathrm{pp}$ correlation function in central Pb+Pb collisions by NA49 at the Super Proton Synchrotron.