Systematic study of the isotopic dependence of fusion dynamics for neutron- and proton-rich nuclei using a proximity formalism

Abstract

The behaviors of barrier characteristics and fusion cross sections are analyzed by changing neutron over wide range of colliding systems. For this purpose, we have extended our previous study (Eur. Phys. J. A \textbf{48}, 21 (2012), it is devoted to the colliding systems with neutron-rich nuclei) to 125 isotopic systems with condition of $0.5\le N/Z\le 1.6$ for their compound nuclei. The AW 95, Bass 80, Denisov DP and Prox. 2010 potentials are used to calculate the nuclear part of interacting potential. The obtained results show that the trend of barrier heights $V_B$ and positions $R_B$ as well as nuclear $V_N$ and Coulomb $V_C$ potentials (at $R=R_B$) as a function of ($N/Z-1$) quantity are non-linear (second-order) whereas the fusion cross sections follow a linear-dependence.

13 pages, 7 figures, 4 tables

References in corpus (7)

• A systematic study of the fusion barriers using different proximity type potentials for $N=Z$ colliding nuclei : New extensions
• The role of surface energy coefficients and nuclear surface diffuseness in the fusion of heavy-ions
• Isospin effects on the energy of vanishing flow in heavy-ion collisions
• Sensitivity of the transverse flow towards symmetry energy
• Isospin effects in the disappearance of flow as a function of colliding geometry
• The systematic study of the influence of neutron excess on the fusion cross sections using different proximity-type potentials
• On the sensitivity of the energy of vanishing flow towards mass asymmetry of colliding nuclei