| Issue |
EPJ Web of Conferences
Volume 35, 2012
Heavy Ion Accelerator Symposium on Fundamental and Applied Science 2012
|
|
|---|---|---|
| Article Number | 05008 | |
| Number of page(s) | 4 | |
| Section | Nuclear Reactions and Superheavy Elements | |
| DOI | https://doi.org/10.1051/epjconf/20123505008 | |
| Published online | 30 October 2012 | |
https://doi.org/10.1051/epjconf/20123505008
Quasifission and Shell Effects in Reactions Forming 266Sg
1 Department of Nuclear Physics, Research School of Physics and Engineering, Australian National University, Canberra, Australian Capital Territory 0200, Australia
2 CEA, Centre de Saclay, IRFU/Service de Physique Nuclaire, F-91191 Gif-sur-Yvette, France
a e-mail: aditya.wakhle@anu.edu.au
The role of shell effects in reactions forming the heavy element 266Sg was investigated using the Mass Angle Distribution technique. For the 34S + 232Th reaction the doubly magic shell closure at 208Pb was found to strongly influence asymmetric quasifission, the exit channel at sub barrier energies. The evolution of the dinuclear system is arrested as it passes through this mass region. Mass splits corresponding to AL/AH ≈ 58/208 are seen for a large range of angles indicating a long timescale for this process. The more mass asymmetric 28Si + 238U reaction has a much smaller quasifission cross section. Therefore the shell effects around 208Pb are not dominant here.
© Owned by the authors, published by EDP Sciences, 2012
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