ZAGATTO, V. A. B., Lubian, J., GASQUES, L. R., ALVAREZ, M. A. G., CHAMON, L. C., OLIVEIRA, J. R. B., ALCÁNTARA-NÚÑEZ, J. A., Medina, N. H., SCARDUELLI, V., FREITAS, A., PADRON, I., ROSSI, E. S., SHORTO, J. M. B.

PHYSICAL REVIEW C, v. 95, p. 064614, 2017

28/06/2017

Abstract

Experimental angular distributions for the Li7+Sn120 elastic and inelastic (projectile and target excitations) scattering, and for the neutron stripping reaction, have been obtained at ELAB=20, 22, 24, and 26 MeV, covering an energy range around the Coulomb barrier (VB(LAB)≈21.4 MeV). Coupled channel and coupled reaction channel calculations were performed and both describe satisfactorily the experimental data sets. The 12− state Li7 inelastic excitation (using a rotational model), as well as the projectile coupling to the continuum (α plus a tritium particle) play a fundamental role on the proper description of elastic, inelastic, and transfer channels. Couplings to the one-neutron stripping channel do not significantly affect the theoretical elastic scattering angular distributions. The spectroscopic amplitudes of the transfer channel were obtained through a shell model calculation. The theoretical angular distributions for the one-neutron stripping reaction agreed with the experimental data.

10.1103/PhysRevC.95.064614