alpha-particle production in the scattering of 6He by 208Pb at energies around the Coulomb barrier
nucl-ex
/ Authors
D. Escrig, A. M. Sanchez-Benitez, A. M. Moro, M. A. G. Alvarez, M. V. Andres, C. Angulo, M. J. G. Borge, J. Cabrera, S. Cherubini, P. Demaret
and 15 more authors
J. M. Espino, P. Figuera, M. Freer, J. E. Garcia-Ramos, J. Gomez-Camacho, M. Gulino, O. R. Kakuee, I. Martel, C. Metelko, F. Perez-Bernal, J. Rahighi, K. Rusek, D. Smirnov, O. Tengblad, V. Ziman
/ Abstract
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.