  The space-time evolution of the source of particles formed in the collision
of nuclei can be studied through particle correlations. The STAR experiment is
dedicated to study ultra-relativistic heavy ions collisions and allows to
measure non-identical strange particle correlations. The source size can be
extracted by studying $p-\Lambda$, $\bar{p}-\bar{\Lambda}$, $\bar{p}-\Lambda$
and $p-\bar{\Lambda}$ correlation functions. Strong interaction potential has
been studied for these systems using an analytical model. Final State
Interaction (FSI) parameters have been determined and has shown a significant
annihilation process present in $\bar{p}-\Lambda$ and $p-\bar{\Lambda}$ systems
not present in $p-\Lambda$ and $\bar{p}-\bar{\Lambda}$.
