Multifragmentation of 40Ca+40Ca.

The multifragment emission of completely characterized'' events in the {sup 40}Ca+{sup 40}Ca system at 35 MeV/nucleon has been compared to the predictions of several models. The observed multifragment emission is not in agreement with models based on conventional statistical binary decay, but is in agreement with both a simultaneous multifragmentation model and a sequential emission model in which expansion is treated.