Modification of surface energy in nuclear multifragmentation

Journal Article · Sun Oct 15 00:00:00 EDT 2006 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.74.044609· OSTI ID:20863867

Botvina, A S ^[1]; Buyukcizmeci, N; Erdogan, M ^[2]; Lukasik, J ^[1]; Mishustin, I N ^[3]; Ogul, R ^[1]; Trautmann, W ^[1]

---

1. Gesellschaft fuer Schwerionenforschung mbH, D-64291 Darmstadt (Germany)
2. Department of Physics, University of Selcuk, TR-42079 Konya (Turkey)
3. Frankfurt Institute for Advanced Studies, J.W. Goethe University, D-60438 Frankfurt (Germany)

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.

• OSTI ID: 20863867
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 74, Issue 4; Other Information: DOI: 10.1103/PhysRevC.74.044609; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
EXCITATION
ISOSPIN
MULTIPLICITY
NEUTRONS
NUCLEAR FRAGMENTATION
NUCLEAR FRAGMENTS
NUCLEI
SURFACE ENERGY
SYMMETRY