Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1995-07-29
Nucl.Phys. A596 (1996) 329-354
Physics
Nuclear Physics
Nuclear Theory
15 pages. LaTeX with iopconf.sty style file. Submitted to Nuclear Physics A. 25 figures not included here. PostScript version
Scientific paper
10.1016/0375-9474(95)00394-0
A detailed understanding of complete fusion cross sections in heavy-ion collisions requires a consideration of the effects of the deformation of the projectile and target. Our aim here is to show that deformation and orientation of the colliding nuclei have a very significant effect on the fusion-barrier height and on the compactness of the touching configuration. To facilitate discussions of fusion configurations of deformed nuclei, we develop a classification scheme and introduce a notation convention for these configurations. We discuss particular deformations and orientations that lead to compact touching configurations and to fusion-barrier heights that correspond to fairly low excitation energies of the compound systems. Such configurations should be the most favorable for producing superheavy elements. We analyse a few projectile-target combinations whose deformations allow favorable entrance-channel configurations and whose proton and neutron numbers lead to compound systems in a part of the superheavy region where alpha half-lives are calculated to be observable, that is, longer than 1 microsecond.
Iwamoto Akira
Moller Peter
Nix Rayford J.
Sagawa Hiroyuki
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