Heavy residue excitation functions for the collisions6,7Li+64Zn near the Coulomb barrier

Sub-barrier fusion of weakly bound Li6 with Ni58

“…Fusion studies for that system, where cross sections for the production of heavy residues resulting from the 6 Li + 64 Zn reaction were measured [11], indicate that the observed fusion enhancement at sub-barrier energies also cannot be explained by couplings between elastic and inelastic channels. Evidence was found by comparing with statistical model predictions that, while complete fusion (CF) dominates at energies well above the barrier, nucleontransfer as well as incomplete fusion (ICF) with a deuteron (d) and/or d transfer might be affecting the sub-barrier yields.…”

“…In any case, yield contaminants from either deuteron or single-nucleon transfers do actually seem to be likely candidates to at least partially explain the large subbarrier fusion cross sections reported for the 6 Li + 64 Zn data of Ref. [11]. CDCC calculations including couplings between elastic scattering, breakup and fusion are needed to shed light on this issue.…”

“…We will discuss first the case of clusters α and d. The excitation energies of the respective compound systems, which can be estimated as described in the previous section for the case of proton-transfer (see also Ref. [11]), are similar for both processes (ICF and DCT), as seen from Table III. Since proton multiplicities are usually quite steady with energy (see Table II, for instance), similar values of M p are expected for both processes ICF and DCT. Therefore, the discussion about α-and d-ICF in the previous paragraphs applies also to DCT.…”

Breakup and n -transfer effects on the fusion reactions Li6,7+Sn120,Fisichella1, Shotter2, Фігуера3 et al. 2017Phys. Rev. CSelf Cite20030View full textAdd to dashboardCite

“…The same technique has been used successfully to measure the fusion excitation functions of the systems 6,7 Li, 4,6 He + 64 Zn [40][41][42][43]. The experimental technique involves two separate stages.…”

Elastic scattering of17O ions from58Ni at near-barrier energies

“…This two opposite views were somehow reconciled by Hagino et al [2] to breakup states lead to the enhancement of the complete fusion cross section at sub-barrier energies and to a reduction of the complete fusion cross section above the barrier. Information on the structure of such nuclei and on its effect on the reaction dynamics can be obtained from high-quality elastic scattering angular distributions data such as shown for the systems 9,10,11 Be on 64 Zn [4] and 6 He on 208 Pb [5]. Within this framework we undertook the study of the 17 F reaction dynamics on a 208 Pb [8] and, more recently, on a 58 Ni target [3].…”