Revised analysis of ${}^{40}$Ca+${}^{96}$Zr fusion reactions

Abstract

Fusion data for ${}^{40}$Ca+${}^{96}$Zr are analyzed by coupled-channels calculations that are based on a standard Woods-Saxon potential and include couplings to multiphonon excitations and transfer channels. The couplings to multiphonon excitations are the same as used in a previous work. The transfer couplings are calibrated to reproduce the measured neutron transfer data. This type of calculation gives a poor fit to the fusion data. However, by multiplying the transfer couplings with a $\sqrt{2}$ one obtains an excellent fit. The scaling of the transfer strengths is supposed to simulate the combined effect of neutron and proton transfer, and the calculated one- and two-nucleon transfer cross sections are indeed in reasonable agreement with the measured cross sections.

20 pages, 7 figures

References in corpus (4)

• Multinucleon transfer reactions in closed-shell nuclei
• Indications of a shallow potential in ${}^{48}$Ca+${}^{96}$Zr fusion reactions
• Influence of multiphonon excitations and transfer on the fusion of Ca+Zr
• Coupled-channels description of multinucleon transfer and fusion reactions at energies near and far below the Coulomb barrier

Cited by in corpus (3)

• Recent experimental results in sub- and near-barrier heavy ion fusion reactions
• Systematics of capture and fusion dynamics in heavy-ion collisions
• Examining empirical evidence of the effect of superfluidity on the fusion barrier