Investigation of the role of shell structure in quasi-fission mass   distributions
  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. 
D. J. Hinde, R. du Rietz, R. G. Thomas, M. Dasgupta, C. Simenel, M. L.   Brown, M. Evers, D. H. Luong, L. R. Gasques, R. Raf...
nucl-ex