Production of new neutron-rich heavy nuclei
- Flerov Laboratory of Nuclear Reaction, JINR, Dubna, Moscow Region (Russian Federation)
- Frankfurt Institute for Advanced Studies, J.W. Goethe-Universitaet, Frankfurt (Germany)
A new way is found to discover and examine unknown neutron-rich heavy nuclei at the 'north-east' part of the nuclear map. This 'blank spot' of the nuclear map can be reached neither in fusion--fission reactions nor in fragmentation processes. The present limits of the upper part of the nuclear map are very close to stability while the unexplored area of heavy neutron-rich nuclides along the neutron closed shell N = 126(to the east of the stability line) is extremely important for nuclear astrophysics investigations and, in particular, for the understanding of the r-process of astrophysical nucleogenesis. A novel idea is proposed for the production of these nuclei via low-energy multi-nucleon transfer reactions with stable beams. The estimated yields of neutron-rich nuclei are found to be rather high in such reactions and several tens of new nuclides can be produced, for example, in the near-barrier collision of {sup 136}Xe with {sup 208}Pb. This finding may spur new studies at heavy-ion facilities and should have significant impact on future experiments.
- OSTI ID:
- 21289481
- Journal Information:
- AIP Conference Proceedings, Vol. 1098, Issue 1; Conference: FUSION08: International conference on new aspects of heavy ion collisions near the Coulomb barrier, Chicago, IL (United States), 22-26 Sep 2008; Other Information: DOI: 10.1063/1.3108849; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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