Theoretical study of the elastic breakup of weakly bound nuclei at near barrier energies

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We have performed CDCC calculations for collisions of ⁷Li projectiles on ⁵⁹Co, ¹⁴⁴Sm and ²⁰⁸Pb targets at near-barrier energies, to assess the importance of the Coulomb and the nuclear couplings in the breakup of ⁷Li, as well as the Coulomb-nuclear interference. We have also investigated scaling laws, expressing the dependence of the cross sections on the charge and the mass of the target. This work is complementary to the one previously reported by us on the breakup of ⁶Li. Here we explore the similarities and differences between the results for the two Lithium isotopes. The relevance of the Coulomb dipole strength at low energy for the two-cluster projectile is investigated in details.