Femtoscopy at High m_T in Heavy-Ion Collisions with ALICE

Femtoscopic two-particle correlations carry important information about the particle emitting source. Of particular interest is the m_T dependence of extracted source radii, which is introduced by the dynamics of the system created in heavy-ion collisions. The reach in m_T of the traditional pion-pion correlation measurements is limited by the small rest mass of the examined particles. Thus, it can be extended with the analysis of pairs of heavier particles: kaons and protons, and proton-lambda pairs, being the heaviest system to extract source sizes so far. The excellent particle identification capabilities and high statistics datasets of ALICE allow to extract source radii differentially in transverse mass and provide new constraints on hydrodynamic models.