Fusion cross sections are extracted for the Li-7 + Si-28 system, via reaction cross section and transfer measurements at sub- and near-barrier energies (E-lab = 5.7 to 14 MeV). The energy evolution of transfer to reaction cross section ratios is determined with the aid of CDCC calculations, which subsequently allows the deduction of fusion cross sections at sub- and near-barrier energies. It is shown that fusion can be well represented in a BPM context. Fusion cross sections are compared for the systems Li-7 + Si-28 and Li-6 + Si-28, the latter studied previously, and are found to exhibit different strengths. Last, the direct channels determined at 13 MeV, are found to be dominated by a 2n-transfer mechanism.
Total reaction and fusion cross sections at sub- and near-barrier energies for the system Li-7+Si-28
MUSUMARRA, Agatino;
2009-01-01
Abstract
Fusion cross sections are extracted for the Li-7 + Si-28 system, via reaction cross section and transfer measurements at sub- and near-barrier energies (E-lab = 5.7 to 14 MeV). The energy evolution of transfer to reaction cross section ratios is determined with the aid of CDCC calculations, which subsequently allows the deduction of fusion cross sections at sub- and near-barrier energies. It is shown that fusion can be well represented in a BPM context. Fusion cross sections are compared for the systems Li-7 + Si-28 and Li-6 + Si-28, the latter studied previously, and are found to exhibit different strengths. Last, the direct channels determined at 13 MeV, are found to be dominated by a 2n-transfer mechanism.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
