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NSR database version of April 26, 2024.

Search: Author = O.C.Santos

Found 13 matches.

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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 8Li projectiles to 9Be target nuclei

NUCLEAR REACTIONS 9Be(8Li, 7Li), 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
Citations: PlumX Metrics

2023SA40      Nucl.Phys. A1040, 122745 (2023)

O.C.B.Santos, J.R.B.Oliveira, E.Macchione, R.Lichtenthaler, K.C.C.Pires, A.Lepine-Szily

The measurement of the half-life of the second excited state of 237Np with a new detector system and digital electronics

RADIOACTIVITY 241Am(α), 237Np(IT); measured decay products, Eα, Iα, Eγ, Iγ, α-γ-coin.; deduced 237Np second excited state T1/2. Fast scintillators, LYSO(Ce) γ-ray detectors.

doi: 10.1016/j.nuclphysa.2023.122745
Citations: PlumX Metrics

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 12C, 19F(6He, 6He), (6He, 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
Citations: PlumX Metrics

2022KA10      Phys.Rev. C 105, 024609 (2022)

G.Kaur, V.Guimaraes, J.C.Zamora, M.Assuncao, J.Alcantara-Nunez, A.L.de Lara, E.O.N.Zevallos, J.B.Ribeiro, R.Lichtenthaler, K.C.C.Pires, O.C.B.Santos, V.Morcelle, R.J.deBoer

New resonances in 11C above the 10B + p threshold investigated by inverse kinematic resonant scattering

NUCLEAR REACTIONS 1H(10B, p), E=37.2 MeV; measured reaction products, Ep, Ip, angular distributions; deduced σ, σ(θ). 11C; deduced resonances, J, π, widths. R-matrix analysis. Comparison of level structure to 11B mirror nucleus. Beam from Radioactive Ion Beams in Brazil (RIBRAS) facility.

doi: 10.1103/PhysRevC.105.024609
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD1020. Data from this article have been entered in the XUNDL database. For more information, click here.

2022KA39      XLIV Brazilian Meeting on Nuclear Physics, Brazil, 9-11 Nov 2021 p.012042 (2022); J.Phys.:Conf.Ser. 2340

G.Kaur, V.Guimaraes, J.C.Zamora, M.Assuncao, J.Alcantara-Nunez, A.L.de Lara, E.O.N.Zevallos, J.B.Ribeiro, R.Lichtenthaler, K.C.C.Pires, O.C.B.Santos, V.Morcelle, R.J.deBoer

Resonant scattering measurement for 11C using thick target in inverse kinematics

NUCLEAR REACTIONS 1H(10B, α), (10B, 3He), (10B, X)11C, E=35.93 MeV; measured reaction products; deduced σ(θ). RIBRAS facility, IFUSP, Sao Paulo.

doi: 10.1088/1742-6596/2340/1/012042
Citations: PlumX Metrics

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 9Be

NUCLEAR REACTIONS 9Be(10Be, 10Be), E=21.8, 26.9 MeV;9Be(9Be, 9Be), E=24.3, 30.1 MeV; 9Be(7Be, 7Be), E=17.3 MeV;9Be(7Li, 7Li), E=17.7, 21.9 MeV;9Be(6Li, 6Li), E=11.2, 21.1, 25.7 MeV;9Be(8Li, 8Li), E=15.4, 18.9 MeV;9Be(8B, 8B), E=23.7 MeV;9Be(11B, 11B), E=31.4 MeV;9Be(12B, 12B), 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 9Be(11B, X) and 3He(6Li, X) reactions.

doi: 10.1103/PhysRevC.106.054602
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD1034.

2022ZA03      Phys.Rev. C 106, 014603 (2022)

J.C.Zamora, J.L.Ferreira, A.Barioni, E.N.Cardozo, D.Abriola, A.Arazi, M.Assuncao, E.de Barbara, M.A.Cardona, V.Guimaraes, D.Hojman, G.V.Marti, D.R.Mendes, A.J.Pacheco, K.C.C.Pires, D.Ramos, O.C.B.Santos, J.Lubian

Role of direct mechanism in two-nucleon T=0 transfer reactions in light nuclei using the (6Li, α) probe

NUCLEAR REACTIONS 12C, 19F(6Li, α), (6Li, 6Li), E=20 MeV; measured reaction products, Eα, Iα, angular distribution; deduced σ(θ) for elastic scattering and isoscalar np-transfer reactions, contributions from direct and sequential reaction mechanism yo the σ, population of particular bound and unbound states in daughter nuclei. Data analysis with coupled-reaction-channels (CRC) approach. Sequential np-transfer mechanism was investigated with coupled-channels Born approximation (CCBA) calculations. Systematics of np-transfer σ obtained with different probes - (α, d), (6Li, α) and (3He, p). Detector setup composed of an array of eight surface-barrier detectors and four silicon telescopes at TANDAR facility.

doi: 10.1103/PhysRevC.106.014603
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD1025.

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 9Be(6He, 6He), E=16.2, 21.3 MeV; measured reaction products; deduced σ, optical model parameters.

doi: 10.1140/epja/s10050-021-00411-0
Citations: PlumX Metrics

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 8Li + 58Ni reaction

NUCLEAR REACTIONS 58Ni(8Li, 8Li), (8Li, 8Li'), (8Li, 7Li), E=23.9, 26.1, 28.7, 30 MeV, [secondary 8Li beam produced in 9Be(7Li, 8Li), 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
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD1004.

2019AP01      Phys.Rev. C 99, 014601 (2019)

S.Appannababu, R.Lichtenthaler, M.A.G.Alvarez, M.Rodriguez-Gallardo, A.Lepine-Szily, K.C.C.Pires, O.C.B.Santos, U.U.Silva, P.N.de Faria, V.Guimaraes, E.O.N.Zevallos, V.Scarduelli, M.Assuncao, J.M.B.Shorto, A.Barioni, J.Alcantara-Nunez, V.Morcelle

Two-neutron transfer in the 6He + 120Sn reaction

NUCLEAR REACTIONS 120Sn(6He, α), E=20.3, 22.2, 22.4, 24.5 MeV; 120Sn(6He, 6He), E=22.2 MeV, [secondary 6He beam from 9Be(7Li, 6He) primary reaction]; measured reaction products, Eα, Iα, 6He scattered particles, differential σ(E, θ), and σ(θ) for elastic scattering using RIBRAS facility at Sao Paulo University; deduced Q-value centroids, transferred angular momentum, dependence of excitation energy of the residual system on the transferred angular momentum using Brink's formula, and square of the final angular momentum. Comparison with four body continuum discretized coupled channel (CDCC) calculations. Discussed formation of di-nuclear rotating system that could be formed after the reaction.

doi: 10.1103/PhysRevC.99.014601
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0945.

2019SA44      Phys.Rev. A 100, 022703 (2019)

O.C.B.Santos, V.R.Vanin, N.L.Maidana, M.N.Martins, M.H.Tabacniks, C.L.Rodrigues, T.F.Silva, A.D.Santos, S.F.Barros, J.A.Garcia-Alvarez, M.F.Koskinas, J.M.Fernandez-Varea, M.S.Pindzola

Experimental and theoretical cross sections for K-shell ionization of 52Te , 73Ta , and 83Bi by electrons with energies up to 100 keV

NUCLEAR REACTIONS Te, Ta, Bi(E, E'), E<100keV; measured reaction products, X-rays; deduced σ.

doi: 10.1103/PhysRevA.100.022703
Citations: PlumX Metrics

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 12B + 58Ni system at near-barrier energies

NUCLEAR REACTIONS 58Ni(12B, 12B), E=30.0, 33.0 MeV; measured reaction products, ΔE-E plot and energy spectra for 4He, 7Li, 9Be and 12B, 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
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0958.

2018PI06      Phys.Rev. C 98, 014614 (2018)

K.C.C.Pires, S.Appannababu, R.Lichtenthaler, O.C.B.Santos

New method to calculate the nuclear radius from low energy fusion and total reaction cross sections

NUCLEAR REACTIONS 9Be(9Be, X), (6He, X), (6Li, X), (7Li, X), (7Be, X), (8Li, X), E(cm)=1-25 MeV; 12C(12C, X), (6He, X), (6Li, X), (7Li, X), (8B, X), (8Li, X), (9Be, X), E(cm)=2-25 MeV; 27Al(6He, X), (6Li, X), (7Li, X), (7Be, X), (8B, X), (8Li, X), (9Be, X), E(cm)=4-25 MeV; 10B(10B, X), E(cm)=2.5-30 MeV; analyzed total fusion and total reaction σ(E); calculated Coulomb barrier radius, Coulomb barrier energy, rms nuclear radii of the target and the projectile, reduced radius of projectile. Comparison with experimental values of rms radii.

doi: 10.1103/PhysRevC.98.014614
Citations: PlumX Metrics

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