Threshold anomalies in low-energy reactions with loosely-bound projectiles

Recent results concerning data for fusion and elastic scattering of low-energy neutron-halo 6 He and weakly-bound 6 Li projectiles, colliding with medium mass targets, are briefly reviewed. The extended optical model (EOM) was used, which includes two complex polarization potentials, one associated to fusion couplings and the other one associated to direct reaction couplings. Four systems having 6 Li projectiles and one with 6 He were analyzed. The extracted threshold anomalies are discussed.