Absence of the threshold anomaly in the elastic scattering of the weakly bound projectile 7Li on 27Al

J. M. FIGUEIRA; J. O. FERNÁNDEZ NIELLO; D. ABRIOLA; A. ARAZI; O. A. CAPURRO; E. DE BARBARÁ; G. V. MARTÍ; D. MARTÍNEZ HEIMANN; A. J. PACHECO; J.E. TESTONI; I. PADRÓN; P. R. S. GOMES; J. LUBIAN

Physical Review C

Ameican Physical Society

Año: 2006 vol. 73 p. 546031 - 546038

0556-2813

To study the conditions leading to the appearance of the threshold anomaly in systems involving weakly bound projectiles we measured elastic scattering cross sections for the 7Li+27Al system at ten different bombarding energies. The results were exhaustively analyzed using different optical model potentials. The similar behavior observed in all these analyses allows us to conclude that no threshold anomaly is found for the present system.