EPJ Web of Conferences
Volume 35, 2012Heavy Ion Accelerator Symposium on Fundamental and Applied Science 2012
|Number of page(s)||4|
|Section||Nuclear Reactions and Superheavy Elements|
|Published online||30 October 2012|
Reconstructing breakup at sub-barrier energies
Department of Nuclear Physics, Research School of Physics and Engineering, Australian National University, Canberra, Australian Capital Territory 0200, Australia
a e-mail: huy.luongeanu.edu.au
Using a position sensitive detector array, back-angle coincidence measurements of breakup fragments at sub-barrier energies has enabled the complete characterisation of the breakup processes in the reactions of 6,7Liw ith 208PbB. reakup processes and their time-scales are identified through the reaction Q-values and the relative energy of the captured breakup fragments. The majority of breakup processes fast enough (~10-22s) to affect fusion are triggered by transfer of a neutron from 6Li, and of a proton to 7Li. These breakup mechanisms should therefore have a major contribution to the ~30% suppression of complete fusion observed at above-barrier energies.
© Owned by the authors, published by EDP Sciences, 2012
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