Origin of the drastic decrease of fusion probability in superheavy mass region

Details Origin of the drastic decrease of fusion probability in superheavy mass region Origin of the drastic decrease of fusion probability in superheavy mass region

2005-09-06

arxiv.org/abs/nucl-th/0509013v1

Nucl.Phys. A764 (2006) 149-159

Physics

Nuclear Physics

Nuclear Theory

14 pages, 7 figures, accepted for publication in Nuclear Physics A

Scientific paper

10.1016/j.nuclphysa.2005.09.008

The fusion-fission process in the superheavy mass region is studied systematically by solving the time evolution of nuclear shape in three-dimensional deformation space using the Langevin equation. By analyzing the trajectory in the deformation space, we identify the critical area when the trajectory's destination is determined to be the fusion or the quasi-fission process. It is also clarified that the potential landscape around the critical area is crucial for estimating the fusion probability, and its dependence on the atomic number is presented.

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