Fusion, breakup and scattering of weakly bound nuclei

20th International School on Nuclear Physics, Neutron Physics and Applications

Gomes, P.R.S.^1 ; Lubian, J.^1

Instituto de Física, Universidade Federal Fluminense, Av. Litorânea s/n, Niterói, R.J.

24210-340, Brazil^1

关键词: Barrier energy;    Coulomb barrier;    Energy dependence;    Optical potential;    Reaction cross-sections;    Threshold anomalies;    Weakly bound nucleus;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/533/1/012029/pdf
DOI  :  10.1088/1742-6596/533/1/012029

来源: IOP

【 摘 要 】

We discuss the systematic results reached in the investigation of the breakup of weakly bound nuclei, at near barrier energies, and its effects on fusion cross sections, elastic scattering and reaction cross sections. Particularly we show that the complete fusion of weakly bound systems are suppressed by dynamic breakup effects at energies above the Coulomb barrier and enhanced at sub-barrier energies. We also show that the energy dependence of the optical potential obtained in the elastic scattering of weakly bound projectiles corresponds to the so-called Breakup Threshold Anomaly (BTA).