alpha-particle production in the scattering of 6He by 208Pb at energies around the Coulomb barrier

Escrig, D.; Sanchez-Benitez, A. M.; Moro, A. M.; Alvarez, M. A. G.; Andres, M. V.; Angulo, C.; Borge, M. J. G.; Cabrera, J.; Cherubini, S.; Demaret, P.; Espino, J. M.; Figuera, P.; Freer, M.; Garcia-Ramos, J. E.; Gomez-Camacho, J.; Gulino, M.; Kakuee, O. R.; Martel, I.; Metelko, C.; Perez-Bernal, F.; Rahighi, J.; Rusek, K.; Smirnov, D.; Tengblad, O.; Ziman, V.

alpha-particle production in the scattering of 6He by 208Pb at energies around the Coulomb barrier

Authors

Escrig, D.

Sanchez-Benitez, A. M.

Description

New experimental data from the scattering of 6He+208Pb at energies around and below the Coulomb barrier are presented. The yield of breakup products coming from projectile fragmentation is dominated by a strong group of $α$ particles. The energy and angular distributions of this group have been analyzed and compared with theoretical calculations. This analysis indicates that the $α$ particles emitted at backward angles in this reaction are mainly due to two-neutron transfer to weakly bound states of the final nucleus.
20 pages, 5 figures. Nuclear Physics A792 (2007) 2-17