Two-neutron transfer in 7Be + 9Be collisions

UMBELINO, U.; PIRES, K.C.C.; LICHTENTHALER, R.; SCARDUELLI, V.; SCOTTON, G.A.; LEPINE-SZILY, A.; GUIMARÃES, V.; LUBIAN, J.; PAES, B.; FERREIRA, J.L.; ALVAREZ, M.A.G.; SHORTO, J.M.B.; APPANNABABU, S.; ASSUNÇÃO, M.; CONDORI, R.P.; MORCELLE, V.

Two-neutron transfer in 7Be + 9Be collisions

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2019

Autores IPEN

JULIAN MARCO BARBOSA SHORTO

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Physical Review C

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Resumo

Elastic scattering and transfer cross sections for the 7Be + 9Be system have been measured at Elab = 23.1 MeV using the 7Be radioactive secondary beam produced at Radioactive Ion Beams in Brazil facility at the University of São Paulo. The elastic scattering has been measured by detecting the 7Be scattered at forward angles in the laboratory system. The transfer reaction 9Be(7Be, 9Be)7Be was identified by detecting the 9Be scattered at the same laboratory angles. The elastic angular distribution has been analyzed by optical model calculations using a Woods-Saxon form factor whose parameters have been varied to best reproduce the experimental data at forward angles. Coupled reaction channels calculations (CRC) have been performed to describe the transfer, considering the coupling to the transfer channel and including contributions to the ground state and to the first excited state of 7Be(1/2−; 429 keV) in the final state. The spectroscopic amplitudes used in the CRC calculation have been derived from shell-model calculations. Similar CRC calculations were applied to existing 9Be(p, t )7Be data to check the consistency of our results results for the (7Be, 9Be) transfer reaction.

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UMBELINO, U.; PIRES, K.C.C.; LICHTENTHALER, R.; SCARDUELLI, V.; SCOTTON, G.A.; LEPINE-SZILY, A.; GUIMARÃES, V.; LUBIAN, J.; PAES, B.; FERREIRA, J.L.; ALVAREZ, M.A.G.; SHORTO, J.M.B.; APPANNABABU, S.; ASSUNÇÃO, M.; CONDORI, R.P.; MORCELLE, V. Two-neutron transfer in 7Be + 9Be collisions. Physical Review C, v. 99, n. 6, p. 064617-1 - 064617-13, 2019. DOI: 10.1103/PhysRevC.99.064617. Disponível em: http://repositorio.ipen.br/handle/123456789/30357. Acesso em: 19 Apr 2024.

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