Investigation of the role of shell structure in quasi-fission mass distributions
D. J. HindeResearch School of Physics and Engineering , The Australian National University , Canberra , ACT 0200 , AustraliaR. du RietzR. G. ThomasM. DasguptaC. SimenelInstitut de Recherche sur les Lois Fondamentales de l'UniversBrown, M. L.M. EversResearch School of Physics and Engineering , The Australian National University , Canberra , ACT 0200 , AustraliaD. H. LuongResearch School of Physics and Engineering , The Australian National University , Canberra , ACT 0200 , AustraliaL. R. GasquesR. RafieiA. Wakhle
2011en
ABI
Annotatsiya
Systematic measurements of mass-ratio distributions for fission following collisions of $^{48}$Ti projectiles with even-even target nuclei from $^{144}$Sm to $^{208}$Pb have been made at sub-barrier energies. They show the presence of quasifission, and depend strongly on target nucleus deformation and the fissility of the composite nucleus. A new framework to analyse systematic mass-ratio measurements allows direct comparison with the trends expected from shell structure, independent of assumptions or fits. This indicates that quasi-fission mass distributions show trends consistent with low energy mass-asymmetric fission of the same actinide elements.
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