BOSE-EINSTEIN CORRELATIONS FROM RANDOM-WALK MODELS

We argue that strong final state rescattering among the secondary part icles created in relativistic heavy ion collisions is essential to und erstand the measured Bose-Einstein correlations. The recently suggeste d ''random walk models'' which contain only initial state scattering a re unable to reproduce the measured magnitude and K-perpendicular to-d ependence of R-perpendicular to in Pb + Pb collisions and the increase of R-l with increasing size of the collision system. (C) 1998 Elsevie r Science B.V. All rights reserved.