Quasi-Elastic Barrier Distribution for the {sup 7}Li+{sup 144}Sm Weakly Bound System

Journal Article · Wed Jun 03 00:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3157809· OSTI ID:21316770

Otomar, D R; Gomes, P R. S.; Lubian, J; Monteiro, D S ^[1]; Capurro, O A; Marti, G V; Pacheco, A J; Niello, J O. F.; Arazi, A; Negri, A; Figueira, J M ^[2]

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1. Instituto de Fisica, Universidade Federal Fluminense, Av. Litoranea s/n, Gragoata, Niteroi, R.J., 24210-340 Rio de Janeiro (Brazil)
2. Laboratorio TANDAR, Comision Nacional de Energia Atomica, Av. General Paz 1499, 1650 San Martin, Buenos Aires (Argentina)

We have measured the excitation function of quasielastic and elastic scattering, at backward angles, for a range of energies from below to above the Coulomb barrier, for the {sup 7}Li+{sup 144}Sm system. Barrier distributions were exctracted from these excitation functions by a numerical method. From the theoretical analysis one concluded that the quadrupole and octupole excitations of {sup 144}Sm and the one-neutron transfer (stripping) channel are important reaction processes. Nevertheless, the agreement with the experimental results is poor. The discrepancy is attributed to the {sup 7}Li break-up channel that was not taken into account in the coupling scheme.

• OSTI ID: 21316770
• Journal Information: AIP Conference Proceedings, Vol. 1139, Issue 1; Conference: 31. workshop on nuclear physics in Brazil, Sao Sebastiao, Sao Paulo (Brazil), 8-12 Sep 2008; Other Information: DOI: 10.1063/1.3157809; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BREAKUP REACTIONS
COULOMB FIELD
COUPLING
DISTRIBUTION
ELASTIC SCATTERING
EXCITATION
EXCITATION FUNCTIONS
LITHIUM 7
LITHIUM 7 REACTIONS
NEUTRON TRANSFER
NUMERICAL ANALYSIS
OCTUPOLES
ONE-NUCLEON TRANSFER REACTIONS
SAMARIUM 144
SAMARIUM 144 TARGET