Abstract
The isoscaling parameter , from the fragments produced in the multifragmentation of , and reactions at 30, 40 and , was compared with that predicted by the antisymmetrized molecular dynamic calculation based on two different nucleon-nucleon effective forces, namely the Gogny and Gogny-AS interaction. The results show that the data agree better with the choice of Gogny-AS effective interaction, resulting in a symmetry energy of . The observed value indicates that the fragments are formed at a reduced density of .
- Received 7 May 2004
DOI:https://doi.org/10.1103/PhysRevC.70.011601
©2004 American Physical Society