The 6Li exclusive breakup on 28Si at 13 MeV

Recent Results on Fusion and Direct Reactions with Weakly Bound Stable Nuclei

“…Thus for 6 Li + 198 Pt, the CC calculations successfully explain the fusion excitation function along with the average angular momentum, consistently implying absence of the fusion hindrance at deep sub-barrier energies. These measurements that extend down to E cm = 19.8 MeV, were well below the threshold energy for observing the fusion hindrance computed from both the approaches (sudden model and adiabatic model) [10].…”

“…This unexpected observation together with astrophysical interest shows importance of accurate measurements of fusion cross section at energies deep below the barrier with different entrance channels to understand the phenomenon of fusion hindrance. The fusion of weakly bound nuclei, which is a subject of current interest, has recently been investigated at energies far below the barrier for the weakly bound projectile 6 Li (S α/t = 1.45 MeV) on 198 Pt [10]. This system incidentally also has a positive Q-value (8.5 MeV).…”

“…Fig. 1 shows fusion cross-sections for 6 Li+ 198 Pt. The sum of individual cross-sections for residues formed after d-capture ( 198−200 Au) are also plotted in Fig.…”

“…In case of elastic scattering, optical model analysis shows presence of repulsive component in the real part of the potential at near barrier energies [3]. Study of projectile breakup vs transfer followed by breakup [4][5][6], breakup fusion mechanism [7][8][9] and phenomenon of fusion hindrance [2,10] are the topics of current interest with weakly bound nuclei.…”

“…First section deals with deep sub-barrier fusion cross-section measurement for 6,7 Li + 198 Pt followed by the study of fragment capture reaction in case of 7 Li + 198 Pt.…”