Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1850284 | Physics Letters B | 2016 | 4 Pages |
Considering the present limitation of the need for external parameters to describe the nucleus–nucleus potential and the couplings in the coupled-channels calculations, this work introduces an improved method without adjustable parameter to overcome the limitation and then sort out the positive Q -value neutron transfers (PQNT) effects based on the CCFULL calculations. The corresponding analysis for Ca+CaCa+Ca, S,Ca+SnS,Ca+Sn, and S,Ca+ZrS,Ca+Zr provides a reliable proof and a quantitative evaluation for the residual enhancement (RE) related to PQNT. In addition, the RE for S32,Ca40+Zr94 shows an unexpected larger enhancement than S32,Ca40+Zr96 despite the similar multi-neutron transfer Q-values. This method should rather strictly test the fusion models and be helpful for excavating the underlying physics.