Continuous emission versus freeze-out via HBT
  The effect of the continuous emission hypothesis on the two-pion Bose-Einstein correlation function is discussed and compared with the corresponding results based on the usual freeze-out. Sizeable differences in the correlation function appear in these different descriptions of the decoupling process. This means that, when extracting properties of the hot matter formed in high-energy heavy-ion collisions from the data, completely different conclusions may be reached according to the description of the particle emission process adopted. 
Frederique Grassi, Yogiro Hama, Sandra S. Padula and Otavio Socolowski   Jr