Effects of nuclear deformation and neutron transfer in capture processes, and fusion hindrance at deep sub-barrier energies

Abstract

The roles of nuclear deformation and neutron transfer in sub-barrier capture process are studied within the quantum diffusion approach. The change of the deformations of colliding nuclei with neutron exchange can crucially influence the sub-barrier fusion. The comparison of the calculated capture cross section and the measured fusion cross section in various reactions at extreme subbarrier energies gives us information about the fusion and quasifission.

Fusion of40Ca+40Caand otherCa+Casystems near and below the ba

“…[18,19], where the dynamics of the two touching and overlapping nuclei is calculated at very low energies. Very recently, also the role of quasi-fission at extreme sub-barrier energies has been emphasized [20]. , although present, were of minor importance since their fusion evaporation products could be discriminated thanks to the mass identification of the detector set-up.…”

Microscopic dynamics simulations of heavy-ion fusion reactions induced by neutron-rich nuclei

“…The synthesis of super-heavy nuclei and heavy-ion fusion reactions induced by neutronrich nuclei have attracted much attention in recent years [1][2][3][4][5][6][7]. The calculations of the fusion (capture) excitation functions are of significant importance for the study of the nuclear structure and test of the models.…”

Effect of nuclear matter incompressibility on theO16+Pb208system

“…Fusion in heavy-ion reactions has been one of the most extensively studied topics in nuclear physics over the last decades [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. Various attempts have been made to explain this phenomenon by using a variety of theoretical models based on different assumptions.…”