Dynamical Collective Potential Energy Landscape: Its Impact on the Competition Between Fusion and Quasi-fission in a Heavy Fusing System
- Department of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200 (Australia)
A realistic microscopically-based quantum approach to the competition between fusion and quasi-fission in a heavy fusing system is applied to several reactions leading to 256No. Fusion and quasi-fission are described in terms of a diffusion process of nuclear shapes through a dynamical collective potential energy landscape which is initially diabatic and gradually becomes adiabatic. The microscopic ingredients of the theory are obtained with a realistic two-center shell model based on Woods-Saxon potentials. The results indicate that (i) the diabatic effects play a very important role in the onset of fusion hindrance for heavy systems, and (ii) very asymmetric reactions induced by closed shell nuclei seem to be the best suited to synthesize the heaviest compound nuclei.
- OSTI ID:
- 20888140
- Journal Information:
- AIP Conference Proceedings, Vol. 853, Issue 1; Conference: FUSION06: International conference on reaction mechanisms and nuclear structure at the Coulomb barrier, Venice (Italy), 19-23 Mar 2006; Other Information: DOI: 10.1063/1.2338382; (c) 2006 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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