Modification of surface energy in nuclear multifragmentation

Details Modification of surface energy in nuclear multifragmentation Modification of surface energy in nuclear multifragmentation

2006-06-29

arxiv.org/abs/nucl-th/0606060v1

Phys.Rev.C74:044609,2006

Physics

Nuclear Physics

Nuclear Theory

11 pages with 13 figures

Scientific paper

10.1103/PhysRevC.74.044609

Within the statistical multifragmentation model we study modifications of the surface and symmetry energy of primary fragments in the freeze-out volume. The ALADIN experimental data on multifragmentation obtained in reactions induced by high-energy projectiles with different neutron richness are analyzed. We have extracted the isospin dependence of the surface energy coefficient at different degrees of fragmentation. We conclude that the surface energy of hot fragments produced in multifragmentation reactions differs from the values extracted for isolated nuclei at low excitation. At high fragment multiplicity, it becomes nearly independent of the neutron content of the fragments.

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