NSR Query Results
Output year order : Descending NSR database version of May 22, 2024. Search: Author = U.Umbelino Found 7 matches. 2023SA13 Eur.Phys.J. A 59, 48 (2023) O.C.B.Santos, R.Lichtenthaler, A.M.Moro, K.C.C.Pires, U.Umbelino, A.S.Serra, E.O.N.Zevallo, A.L.de Lara, V.Scarduelli, J.Alcantara-Nunez, A.Lepine-Szily, J.Lei, S.Appannababu, M.Assuncao One-neutron stripping from ^{8}Li projectiles to ^{9}Be target nuclei NUCLEAR REACTIONS ^{9}Be(^{8}Li, ^{7}Li), E=23.8 MeV; measured reaction products; deduced σ(θ), σ(θ, E). Comparison with optical model calculations using standard Woods-Saxon potentials. The RIBRAS (Radioactive Ion Beams in Brasil) facility.
doi: 10.1140/epja/s10050-023-00959-z
2022BA37 XLIV Brazilian Meeting on Nuclear Physics, Brazil, 9-11 Nov 2021 p.012040 (2022); J.Phys.:Conf.Ser. 2340 A.Barioni, G.Kaur, J.Alcantara-Nunez, M.Assuncao, V.Guimaraes, A.L.Lara, A.Lepine-Szily, R.Lichtenthaler, R.Linares, D.R.Mendes, K.C.C.Pires, O.C.B.Santos, A.S.Serra, J.M.B.Shorto, U.Umbelino, V.A.B.Zagatto, E.O.N.Zevallos, J.C.Zamora Two-neutron transfer as a tool to study pairing correlations in nuclei NUCLEAR REACTIONS ^{12}C, ^{19}F(^{6}He, ^{6}He), (^{6}He, X), (α, α), (α, X), E=20 MeV; measured reaction products, Eα, Iα; deduced σ(θ), feasibility of two-neutron transfer reactions. RIBRAS facility.
doi: 10.1088/1742-6596/2340/1/012040
2022UM01 Phys.Rev. C 106, 054602 (2022) U.Umbelino, R.Lichtenthaler, O.C.B.Santos, K.C.C.Pires, A.S.Serra, V.Scarduelli, A.L.de Lara, E.O.N.Zevallos, J.C.Zamora, A.Lepine-Szily, J.M.B.Shorto, M.Assuncao, V.A.B.Zagatto Quasielastic scattering of light radioactive and stable projectiles on ^{9}Be NUCLEAR REACTIONS ^{9}Be(^{10}Be, ^{10}Be), E=21.8, 26.9 MeV;^{9}Be(^{9}Be, ^{9}Be), E=24.3, 30.1 MeV; ^{9}Be(^{7}Be, ^{7}Be), E=17.3 MeV;^{9}Be(^{7}Li, ^{7}Li), E=17.7, 21.9 MeV;^{9}Be(^{6}Li, ^{6}Li), E=11.2, 21.1, 25.7 MeV;^{9}Be(^{8}Li, ^{8}Li), E=15.4, 18.9 MeV;^{9}Be(^{8}B, ^{8}B), E=23.7 MeV;^{9}Be(^{11}B, ^{11}B), E=31.4 MeV;^{9}Be(^{12}B, ^{12}B), E=28.3, 34.3 MeV; measured reaction products, angular distributions; deduced σ(θ), total σ, optical model parameters. Analysis with the optical model using Woods-Saxon form factor and Sao Paulo potential. Comparison to Coupled channels (CC), coupled reaction channels (CRC), and continuum-discretized coupled channels (CDCC) calculations to investigate couplings of the inelastic, breakup, and transfer channels on the total σ. Cocktail secondary beam produced by the RIBRAS (Radioactive Ion Beams in Brasil) facility from ^{9}Be(^{11}B, X) and ^{3}He(^{6}Li, X) reactions.
doi: 10.1103/PhysRevC.106.054602
2021LI20 Eur.Phys.J. A 57, 92 (2021) R.Lichtenthaler, O.C.B.Santos, A.Serra, U.Umbelino, K.C.C.Pires, J.R.B.Oliveira, A.Lepine-Szily, P.N.de Faria, V.Morcelle Experiments with A = 6-8 exotic beams in RIBRAS NUCLEAR REACTIONS ^{9}Be(^{6}He, ^{6}He), E=16.2, 21.3 MeV; measured reaction products; deduced σ, optical model parameters.
doi: 10.1140/epja/s10050-021-00411-0
2021SA25 Phys.Rev. C 103, 064601 (2021) O.C.B.Santos, R.Lichtenthaler, K.C.C.Pires, U.Umbelino, E.O.N.Zevallos, A.L.de Lara, A.S.Serra, V.Scarduelli, J.Alcantara-Nunez, V.Guimaraes, A.Lepine-Szily, J.C.Zamora, A.M.Moro, S.Appannababu, M.Assuncao, A.Barioni, R.Linares, V.A.B.Zagatto, P.N.de Faria, M.C.Morais, V.Morcelle, J.M.B.Shorto, J.Lei Evidence of the effect of strong stripping channels on the dynamics of the ^{8}Li + ^{58}Ni reaction NUCLEAR REACTIONS ^{58}Ni(^{8}Li, ^{8}Li), (^{8}Li, ^{8}Li'), (^{8}Li, ^{7}Li), E=23.9, 26.1, 28.7, 30 MeV, [secondary ^{8}Li beam produced in ^{9}Be(^{7}Li, ^{8}Li), E=26-32 MeV using the RIBRAS facility at the 8-UD Pelletron accelerator of the University of Sao Paulo]; measured reaction products, two-dimensional ΔE-E particle spectra, elastic σ(θ). Comparison with optical model and continuum discretized coupled channels (CDCC) calculations for the elastic and nonelastic breakup or particle-transfer processes.
doi: 10.1103/PhysRevC.103.064601
2019UM01 Phys.Rev. C 99, 064617 (2019) U.Umbelino, K.C.C.Pires, R.Lichtenthaler, V.Scarduelli, G.A.Scotton, A.Lepine-Szily, V.Guimaraes, J.Lubian, B.Paes, J.L.Ferreira, M.A.G.Alvarez, J.M.B.Shorto, S.Appannababu, M.Assuncao, R.P.Condori, V.Morcelle Two-neutron transfer in ^{7}Be + ^{9}Be collisions NUCLEAR REACTIONS ^{9}Be(^{7}Be, ^{7}Be), (^{7}Be, ^{9}Be), E=23.1 MeV, [^{7}Be secondary beam produced in ^{7}Li(^{6}Li, ^{7}Be), E=30 MeV primary reaction]; measured reaction products, ΔE-E total spectrum for p, d, t, α, ^{6}Li, ^{7}Li, ^{7}Be and ^{9}Be charged particles, differential σ(θ) using silicon surface barrier telescopes at the University of Sao Paulo RIBRAS facility. ^{7,8,9}Be; deduced levels, J, π, B(M1), B(E2), electric and magnetic multipole moments; calculated spectroscopic amplitudes for two-particle wave function components using shell model. ^{9}Be(p, t), (p, p), E=14-23 MeV; calculated elastic scattering differential σ(θ, E), and elastic transfer σ(E). Analysis using coupled reaction channel (CRC) and DWBA calculations.
doi: 10.1103/PhysRevC.99.064617
2019ZE01 Phys.Rev. C 99, 064613 (2019) E.O.N.Zevallos, V.Guimaraes, E.N.Cardozo, J.Lubian, R.Linares, R.Lichtenthaler Filho, K.C.C.Pires, O.C.B.Santos, S.Appannababu, E.Crema, J.Alcantara-Nunez, A.L.Lara, Y.S.Villamizar, U.Umbelino, N.Added, M.Assuncao, V.Morcelle, D.S.Monteiro Elastic scattering of the ^{12}B + ^{58}Ni system at near-barrier energies NUCLEAR REACTIONS ^{58}Ni(^{12}B, ^{12}B), E=30.0, 33.0 MeV; measured reaction products, ΔE-E plot and energy spectra for ^{4}He, ^{7}Li, ^{9}Be and ^{12}B, elastic scattering angular distributions, and σ(θ, E) using silicon ΔE-E telescopes at the University of Sao Paulo RIBRAS facility. Comparison with large-scale coupled reaction channel calculations including E2 and E3 inelastic transitions in the target, and one-nucleon transfer reactions.
doi: 10.1103/PhysRevC.99.064613
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