Abstract

• The role of neutron transfer is investigated in the heavy-ion fusion reactions of 40Ca+48Ca and 40Ca+124Sn systems by using coupled-channel method. The calculated fusion cross sections and barrier distributions are compared with the experimental data. The calculations are performed with the inclusion of vibrational coupling for target nuclei in both systems. The calculated fusion cross sections with channel couplings give better agreement compare with no-coupling calculations. But extracted barrier distributions still deviate from the experimental data. The Q-values of two neutrons transfer reactions 48Ca (40Ca, 42Ca) 46Ca and 124Sn (40Ca, 42Ca) 122Sn show 2.621 MeV and 5.410 MeV, respectively. The inclusion of neutron transfer channel in the calculations reproduces the experimental fusion cross sections and barrier distributions.