Fusion, break-up and elastic scattering of weakly bound nuclei

P. R.S. GOMES; I. PADRON; J.O. FERNÁNDEZ NIELLO; G.V. MARTÍ; M.D. RODRÍGUEZ; O. A. CAPURRO; A.J. PACHECO; J.E. TESTONI; A. ARAZI; J. LUBIAN; R.M. ANJOS; L.C.CHAMON; E.CREMA; M.S.HUSSEIN

JOURNAL OF PHYSICS G. NUCLEAR PHYSICS

Institute of Physics and IOP Publishing Limited

Año: 2005 vol. 31 p. 1669 - 1673

0305-4616

We describe the behaviour of the fusion, break-up, reaction cross sections andelastic scattering of weakly bound nuclei, at near and above barrier energies.The total fusion cross sections are not affected by the break-up process at thisenergy regime. The elastic break-up cross sections are important at energiesclose and above the Coulomb barrier, even in systems with light targets, andincrease the reaction cross sections. We also show that the break-up processat near and sub-barrier energies is responsible for the vanishing of the usualthreshold anomaly of the optical potential and gives rise to a new type ofanomaly, named by us as break-up threshold anomaly.