Non-identical particle femtoscopy in Pb$-$Pb collisions at $\sqrt{{\text{s}}_{\mathrm{NN}}}=2.76$ TeV measured with ALICE

Abstract

Two-particle femtoscopic correlations between non-identical charged particles for different charge combinations are measured in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV with ALICE at the LHC. The three-dimensional two-particle correlation functions are studied in different centrality bins. The femtoscopic source size parameter ($R_{Out}$) and emission asymmetry ($\mu$) are extracted. It is observed that the average source size of the system and emission asymmetry between particles increase from peripheral to central events.

3 pages, 2 figures, Proceedings of XXXIX International Conference on High Energy Physics (ICHEP 2018)