Correlations induced by quantum statistics are sensitive to the spatio-temporal extent as well as dynamics of particle emitting sources in heavy-ion collisions.

In addition, such correlations can be used to search for the presence of a coherent component of pion production. Two and three-pion correlations of

same and mixed-charge are measured at low relative momentum to estimate the coherent fraction of charged pions in Pb-Pb collisions at sqrt(s_nn}= 2.76 TeV at the LHC with ALICE. The genuine three-pion quantum statistics correlation is found to be suppressed relative to the two-pion correlation based on the assumption of fully chaotic

pion emission. The suppression is observed to decrease

with triplet momentum. The observed suppression at low triplet momentum may correspond to a coherent fraction in

charged pion emission of 22percent +- 12percent.