Multi-pion Bose-Einstein correlations in high energy heavy-ion collisions

Multi-pion correlations and wavepacket size effects on the pion multiplicity distribution, pion momentum distribution and two-pion interferometry are studied. It is shown that multi-pion Bose-Einstein correlations and the wavepacket size cause an abundance of pions at low momentum, increase the mean pion multiplicity and decrease both the apparent radius of the source and the coherent source parameter derived from two-pion interferometry.