Heavy-ion fusion cross sections of weakly bound ${}^9$Be on ${}^{27}$Al, ${}^{64}$Zn and tightly bound ${}^{16}$O on ${}^{64}$Zn target using Coulomb and proximity potential

Abstract

The total fusion cross sections for the fusion of weakly bound ${}^9$Be on ${}^{27}$Al and ${}^{64}$Zn targets at near and above the barrier have been calculated using one dimensional barrier penetration model, taking scattering potential as the sum of Coulomb and proximity potential and the calculated values are compared with experimental data. For the purpose of comparison of the fusion of weakly bound projectiles and strongly bound projectiles, the total fusion cross sections for the reaction of tightly bound nucleus ${}^{16}$O on ${}^{64}$Zn have also been computed using a similar procedure. The calculated values of total fusion cross sections in all cases are compared with coupled channel calculations using the code CCFULL. The computed cross sections using Coulomb and proximity potential explain the fusion reactions well in both cases of weakly bound and strongly bound projectiles. Reduced reaction cross sections for the systems ${}^9$Be + ${}^{27}$Al, ${}^9$Be+ ${}^{64}$Zn and ${}^{16}$O + ${}^{64}$Zn have also been described.

Comments: 12 pages, 5 figures. Nuclear Physics A (2013)