Elastic scattering, inelastic excitation, and neutron transfer for 7Li + 120Sn at energies around the Coulomb barrier
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2017
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Physical Review C
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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.
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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. Elastic scattering, inelastic excitation, and neutron transfer for 7Li + 120Sn at energies around the Coulomb barrier. Physical Review C, v. 95, n. 6, p. 064614-1 - 064614-8, 2017. DOI: 10.1103/PhysRevC.95.064614. Disponível em: http://repositorio.ipen.br/handle/123456789/27896. Acesso em: 23 Apr 2024.
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