Isospin effects on fragmentation mechanisms

Journal Article · Fri Oct 14 00:00:00 EDT 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2114700· OSTI ID:20719421

Colonna, M; Di Toro, M; Lionti, R ^[1]; Baran, V ^[1]; NIPNE-HH, ^[2]

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1. Laboratori Nazionali del Sud INFN, via S.Sofia 62, I-95123 Catania (Italy)
2. Romania

We discuss fragmentation mechanisms, in neutron-rich systems, occurring in central and mid-peripheral collisions at Fermi energies. The most relevant isospin effects are the distillation mechanism, that leads to to the formation of more symmetric fragments, surrounded by a neutron-rich gaseous phase, in central collisions, and isospin transport mechanisms that are responsible for the neutron enrichment of the overlap (neck) region in mid-peripheral collisions, where fragments are formed. The origin of fluctuations in the isotopic composition of fragments and the link to the low density properties of the symmetry energy are discussed.

• OSTI ID: 20719421
• Journal Information: AIP Conference Proceedings, Vol. 791, Issue 1; Conference: 2. Argonne/MSU/JINA/INT RIA workshop on reaction mechanisms for rare isotope beams, East Lansing, MI (United States), 9-12 Mar 2005; Other Information: DOI: 10.1063/1.2114700; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ISOSPIN
ISOTOPE RATIO
NEUTRON-RICH ISOTOPES
NEUTRONS
NUCLEAR FRAGMENTATION
PERIPHERAL COLLISIONS
SYMMETRY