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Projectile breakup dynamics for 6Li + 59Co: kinematical analysis of alpha-d coincidences
F. A. Souza, N. Carlin, C. Beck1, N. Keele, A. Diaz-Torres, R. Liguori Neto, C. Siqueira-Mello, M. M. De Moura, M. G. Munhoz, R. A. N. Oliveira2, M. G. Del Santo, A. A. P. Suaide, E. M. Szanto, A. Szanto de Toledo

A study of the kinematics of the alpha-d coincidences in the 6Li + 59Co system at a bombarding energy of Elab = 29.6 MeV is presented. With exclusive measurements performed over different angular intervals it is possible to identify the respective contributions of the sequential projectile breakup and direct projectile breakup components. A careful analysis using a semiclassical approach of these processes provides information on both their lifetime and their distance of occurrence with respect to the target. Breakup to the low-lying (near-threshold) continuum is delayed, and happens at large internuclear distances. This suggests that the influence of the projectile breakup on the complete fusion process can be related essentially to direct breakup to the 6Li high-lying continuum spectrum.
1 :  DRS-IPHC - Département Recherches Subatomiques
2 :  DT/FEEC - Departamento de Telemática, Faculdade de Engenharia Elétrica e de Computação
Physique/Physique Nucléaire Expérimentale

Physique/Physique Nucléaire Théorique
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