Abstract
The role of neutron transfers is investigated in the fusion process below the Coulomb barrier by analyzing 32S+90Zr and 32S+96Zr as benchmark reactions. A full coupled-channel calculation of the fusion excitation functions has been performed for both systems by using multi-neutron transfer coupling for the more neutron-rich reaction. The enhancement of fusion cross sections for 32S+96Zr is well reproduced at sub-barrier energies by NTFus code calculations including the coupling of the neutron-transfer channels following the Zagrebaev semiclassical model. We found similar effects for 40Ca+90Zr and 40Ca+96Zr fusion excitation functions.
Highlights
Heavy-ion fusion reactions with colliding neutron-rich nuclei at bombarding energies at the vicinity and below the Coulomb barrier have been widely studied [1,2,3,4,5,6,7,8,9,10]
We present the analysis of excitation functions of evaporation residues (ER) cross sections recently measured with high precision
The differential cross sections of quasi-elastic scattering (QEL) at backward angles were previously measured by the CIAE group [9]
Summary
Heavy-ion fusion reactions with colliding neutron-rich nuclei at bombarding energies at the vicinity and below the Coulomb barrier have been widely studied [1,2,3,4,5,6,7,8,9,10]. Experimental results have already shown such enhancement of the sub-barrier fusion cross sections due to the neutron-transfer channels with positive Q-values [2,5].
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
