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

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.

Bibliographic Details

Main Authors:	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.
Format:	Digital revista
Language:	English
Published:	Sociedade Brasileira de Física 2003
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332003000200031
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