Investigating medium and heavy mass heavy-ion fusion reactions and barrier distributions with coupled-channel analyzes

Abstract

The fusion process is the effect of a one-dimensional barrier penetration model that incorporates scattering potential as a combination of Coulomb and proximity potentials. Heavy-ion fusion reactions were performed with coupled-channel (CC) calculations. In heavy-ion fusion reactions, CC formalism is carried through the under-barrier energy. Here, fusion cross sections were calculated and investigated for the O-16+Ge-70,Ge-72,Ge-74,Ge-76, O-16+Sm-148,Sm-150,Sm-152,Sm-154, Ne-20+Zr-90,Zr-92,Zr-94,Zr-96, Ne-20+Sn-112,Sn-114,Sn-116,Sn-118,Sn-120, Si-28+Mo-90,Mo-96, Si-28+Mg-24,Mg-26, Si-28+Ni-58,Ni-64, Si-28+Zr-90,Zr-94,Zr-96, S-32+Zr-90,Zr-96, S-36+Pb-204,Pb-206,Pb-208,Pb-210, Ar-40+Hf-176,Hf-178,Hf-180 in the framework of CC calculations (CCFULL, NRV) and Wong's formula. Fusion cross sections were analyzed in detail by CC calculations considering 2(+) and 3(-) excitation modes for the projectile and the target. The calculated cross-section results were compared with the experimental data. The calculations were found to produce reliable data compared to experimental data. Fusion barrier distributions (D-fus) for all reactions have been investigated below and above the Coulomb barrier using the coupled-channel method with CCFULL, NRV codes and second derivative of Wong's formula. The harmony among these calculations was examined and it was determined that the models were in harmony with each other.