Artigo de peri??dico
Elastic scattering, inelastic excitation, and neutron transfer for 7Li + 120Sn at energies around the Coulomb barrier
Registro en:
2469-9985
6
95
10.1103/PhysRevC.95.064614
72.500
Autor
ZAGATTO, V.A.B.
LUBIAN, J.
GASQUES, L.R.
ALVAREZ, M.A.G.
CHAMON, L.C.
OLIVEIRA, J.R.B.
ALCANTARA-NUNEZ, J.A.
MEDINA, N.H.
SCARDUELLI, V.
FREITAS, A.
PADRON, I.
ROSSI JUNIOR, E.S.
SHORTO, J.M.B.
Resumen
Experimental angular distributions for the Li-7 + Sn-120 elastic and inelastic (projectile and target excitations) scattering, and for the neutron stripping reaction, have been obtained at E-LAB = 20, 22, 24, and 26 MeV, covering an energy range around the Coulomb barrier (V-B((LAB)) approximate to 21.4 MeV). Coupled channel and coupled reaction channel calculations were performed and both describe satisfactorily the experimental data sets. The 1/2(-) state Li-7 inelastic excitation (using a rotational model), as well as the projectile coupling to the continuum (alpha 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.