Is the inhibition/enhancement of fusion due to breakup still a puzzle?

AUTOR(ES)

Szanto de Toledo, A., Munhoz, M.G., Takahashi, J., Souza, F.A., Alonso, E.E., Carlin, N., Liguori Neto, R., Moura, M.M., Suaide, A.A., Szanto, E.M.

FONTE

Brazilian Journal of Physics

DATA DE PUBLICAÇÃO

2003-06

RESUMO

The effect of breakup in the fusion cross section in terms of suppression versus enhancement, discussed in a conflicting way in the literature, is addressed. Data and theoretical predictions available in the literature are compared. Excitation functions of the sub- and near-barrier fusion cross-sections for a wide variety of light and heavy systems are presented and interpreted. We have measured fusion excitation functions and breakup correlation functions for the medium weight systems 6Li + 59Co and 7Li + 59Co. These measurements help to establish the influence of the projectile breakup on the fusion process at near-barrier energies and contribute to the determination of how the mass of the target affects the breakup role. The results indicate a light fusion enhancement at sub-barrier energies and a geometry dominated cross section at barrier energies.

Documentos Relacionados

• Impaired glucose and nutrient absorption in critical illness: is gastric emptying only a piece of the puzzle?
• The K veim response: still useful, still a puzzle.
• Central venous oxygen saturation and emergency intubation – another piece in the puzzle?
• Disseminated infection due to penicillin resistant gonococci--is it still rare?
• Influence of the break-up on the fusion and scattering processes