The $\mathrm{\Lambda }\mathrm{\Lambda }$ Correlation Function in Au+Au collisions at $\sqrt{s_{NN}}=$ 200 GeV

We present $\mathrm{\Lambda }\mathrm{\Lambda }$ correlation measurements in heavy-ion collisions for Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV using the STAR experiment at the Relativistic Heavy-Ion Collider (RHIC). The Lednick'{y}-Lyuboshitz analytical model has been used to fit the data to obtain a source size, a scattering length and an effective range. Implications of the measurement of the $\mathrm{\Lambda }\mathrm{\Lambda }$ correlation function and interaction parameters for di-hyperon searches are discussed.