Regular Article - Theoretical Physics
Investigation of dynamic effects on fusion cross sections for reactions O + Sn
School of Physics and Microelectronics, Zhengzhou University, 450001, Zhengzhou, China
Accepted: 15 August 2022
Published online: 24 August 2022
The dynamic effects on fusion cross sections for O + Sn are investigated by using the universal fusion function prescription and the empirical coupled-channel (ECC) model. An examination of the reduced fusion excitation functions shows that the sub-barrier fusion cross sections of O + Sn exhibit an extra enhancement as compared to those of O + Sn. Then the enhancements of fusion cross sections due to couplings to inelastic excitation channels and positive Q-value neutron transfer channel are evaluated separately by using the ECC model. The results show that the data of O + Sn are described well by the ECC model. In addition, it is found that the effect of coupling to positive Q-value neutron transfer channel is necessary to reproduce the sub-barrier fusion cross sections of the reactions O + Sn. While for O + Sn, the effect of coupling to neutron transfer channel with positive Q value can be neglected.
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