NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = E.de Barbara Found 17 matches. 2023GI04 J.Phys.(London) G50, 045103 (2023) T.Giudice, D.Abriola, A.Arazi, E.de Barbara, M.A.Cardona, J.Gomez, D.Hojman, R.M.Id Betan, M.S.Kohen, N.Llaneza, G.V.Marti, B.Paes, D.Schneider, H.Soler, J.Lubian Study of the threshold anomaly in the elastic scattering of d+ 197Au NUCLEAR REACTIONS 197Au(d, d), E=5-16 MeV; measured reaction products; deduced critical interaction distance, σ, σ(θ); deduced fitting parameters using two alternative models: the semi-microscopic Sao Paulo and the effective Woods–Saxon optical potentials. The 20UD tandem accelerator TANDAR.
doi: 10.1088/1361-6471/acb452
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
2021GO21 Phys.Rev. C 104, 024609 (2021) F.Gollan, D.Abriola, A.Arazi, M.A.Cardona, E.de Barbara, J.de Jesus, D.Hojman, R.M.Id Betan, J.Lubian, A.J.Pacheco, B.Paes, D.Schneider, H.O.Soler One-neutron transfer, complete fusion, and incomplete fusion from the 9Be + 197Au reaction NUCLEAR REACTIONS 197Au(9Be, 9Be), (9Be, 9Be'), (9Be, 8Be)198Au, (9Be, 10Be)196Au, (9Be, X)199Tl/200Tl/201Bi/202Bi/203Bi, E=22-50.5 MeV from the 20 UD tandem accelerator of TANDAR Laboratory in Buenos Aires; measured off-line Eγ, Iγ from an activated target; deduced σ(E) for elastic and inelastic scattering, σ(E) for one-neutron stripping and pickup and elastic breakup, complete-fusion (CF) and incomplete fusion (ICF). Comparison with Universal Fusion Function (UFF) method, and with continuum discretized coupled-channel (CDCC) calculations, with Sao Paulo Potential (SPP) systematics. RADIOACTIVITY 196,198Au(β-), 196Au, 199,200Tl, 201,202Bi, 203Bi(EC), (β+)[from 197Au(9Be, X), E=22-50.5 MeV]; measured γ radiation, T1/2 of decays from γ-decay curves.
doi: 10.1103/PhysRevC.104.024609
2020AV03 Phys.Rev. C 101, 044601 (2020) M.Aversa, D.Abriola, M.A.G.Alvarez, A.Arazi, M.A.Cardona, L.C.Chamon, E.de Barbara, J.de Jesus, J.P.Fernandez-Garcia, L.R.Gasques, D.Hojman, A.Lepine-Szily, G.V.Marti, A.J.Pacheco, V.Scarduelli, V.A.B.Zagatto Investigation of the fusion process for 10B + 197Au at near-barrier energies NUCLEAR REACTIONS 197Au(10B, 9B)198Au, (10B, 11B)196Au, (10B, 3n)204Po, (10B, 4n)203Po, (10B, 5n)202Po, (10B, 2np)204Bi, (10B, 3np)203Bi, (10B, 4np)202Bi, (10B, 2nα)201Pb, (10B, 3nα)200Pb, (10B, 4nα)199Pb, (6Li, 4n), E=38-61 MeV; measured Eγ, Iγ, fusion σ(E) by offline detection of γ rays from products after complete and incomplete fusion at the 20 UD TANDAR Accelerator facility. Comparison with coupled reaction channel (CRC) calculations using the Sao Paulo potential. 197Au(α, X), (8He, X), (6Li, X), (7Li, X), (11B, X), (12C, X), (16O, X), (40Ar, X), (40Ca, X), (48Ca, X), E(reduced)=-2 to +4; analyzed previous fusion σ(E) data with the present data for 197Au(10B, X); deduced universal fusion function.
doi: 10.1103/PhysRevC.101.044601
2020GA11 Phys.Rev. C 101, 044604 (2020) L.R.Gasques, L.C.Chamon, A.Lepine-Szily, V.Scarduelli, V.A.B.Zagatto, D.Abriola, A.Arazi, M.A.Cardona, E.de Barbara, J.de Jesus, D.Hojman, G.V.Marti, A.J.Pacheco, D.Ramos Lopez, M.A.G.Alvarez, J.P.Fernandez-Garcia, M.Rodriguez-Gallardo, M.Cubero, L.F.Umana, S.Achi-Prado Investigation of the reaction mechanisms for 10B + 197Au at near-barrier energies NUCLEAR REACTIONS 197Au(10B, 10B), (10B, 10B'), (10B, 11B), (10B, 9Be), E=38-61 MeV; measured reaction products, beam-like recoils, and σ(E, θ) using E-ΔE silicon surface barrier telescopes at the 8-MV Pelletron accelerator of the University of Sao Paulo, and at the 20-MV tandem accelerator TANDAR; deduced total integrated cross sections. 10B, 197Au; deduced levels, J, π, yields. Comparison with coupled reaction channel (CRC) calculations, with double-folding Sao Paulo potential. Discussed breakup process of 10B.
doi: 10.1103/PhysRevC.101.044604
2020GO04 Nucl.Phys. A1000, 121789 (2020) F.Gollan, D.Abriola, A.Arazi, M.A.Cardona, E.de Barbara, D.Hojman, R.M.Id Betan, G.V.Marti, A.J.Pacheco, D.Rodrigues, M.Togneri Energy dependence of the optical potential of the weakly bound 9Be projectile on the 197Au target
doi: 10.1016/j.nuclphysa.2020.121789
2018AR02 Phys.Rev. C 97, 044609 (2018) A.Arazi, J.Casal, M.Rodriguez-Gallardo, J.M.Arias, R.Lichtenthaler Filho, D.Abriola, O.A.Capurro, M.A.Cardona, P.F.F.Carnelli, E.de Barbara, J.Fernandez Niello, J.M.Figueira, L.Fimiani, D.Hojman, G.V.Marti, D.Martinez Heimann, A.J.Pacheco 9Be + 120Sn scattering at near-barrier energies within a four-body model NUCLEAR REACTIONS 120Sn(9Be, 9Be), (9Be, 9Be'), E=26, 27, 28, 29.5, 31, 42, 50 MeV; measured scattered particles, differential σ(E, θ) of elastic and inelastic channels using 20 UD tandem accelerator TANDAR at Buenos Aires; deduced excitation to first 2+ and 3- states in 120Sn. Comparison with optical model (OM) and four-body continuum-discretized coupled-channels (CDCC) calculations.
doi: 10.1103/PhysRevC.97.044609
2018CA01 Nucl.Phys. A969, 94 (2018) P.F.F.Carnelli, D.Martinez Heimann, A.J.Pacheco, A.Arazi, O.A.Capurro, J.O.Fernandez Niello, M.A.Cardona, E.de Barbara, J.M.Figueira, D.L.Hojman, G.V.Marti, A.E.Negri Inclusive and exclusive measurements of alpha particle production mechanisms in the 7Li + 144Sm system NUCLEAR REACTIONS 144Sm(7Li, x), E=24, 30 MeV; measured E, Ip(θ), E(d), I(d, θ), Ea, Iα(θ), other reaction products, coincidences using segmented-anode ionization chamber and three PSDs; deduced α-particle emission σ(Eα), σ(θ), S(θ, Eα); analyzed data including breakup possibility; calculated dσ using statistical description of the decay of composite system with inclusion of projectile breakup and transfer-breakup modes, direct transfer reaction using DWBA.
doi: 10.1016/j.nuclphysa.2017.08.007
2018GO20 Nucl.Phys. A979, 87 (2018) F.Gollan, D.Abriola, A.Arazi, O.A.Capurro, M.A.Cardona, E.de Barbara, D.Hojman, G.V.Marti, A.J.Pacheco, D.Rodrigues, J.E.Testoni Breakup threshold anomaly in the elastic scattering of the 9Be + 80Se system NUCLEAR REACTIONS 80Se(9Be, 9Be), E=17, 18, 19, 20, 21, 22, 23, 24, 25, 30, 32.8 MeV; measured Be ejectiles using array of eight surface-barrier Si detectors; deduced σ(θ); calculated σ(θ) using optical model with Woods-Saxon energy-dependent potentials with variable geometry and using Sao Paulo potential; deduced sensitivity radius of the real and imaginary parts of Woods-Saxon potential, volume integral per nucleon vs E(cm).
doi: 10.1016/j.nuclphysa.2018.09.003
2017SC24 Phys.Rev. C 96, 054610 (2017) V.Scarduelli, E.Crema, V.Guimaraes, D.Abriola, A.Arazi, E.de Barbara, O.A.Capurro, M.A.Cardona, J.Gallardo, D.Hojman, G.V.Marti, A.J.Pacheco, D.Rodrigues, Y.Y.Yang, N.N.Deshmukh, B.Paes, J.Lubian, D.R.Mendes, Jr, V.Morcelle, D.S.Monteiro Elastic and inelastic scattering for the 10B + 58Ni system at near-barrier energies NUCLEAR REACTIONS 58Ni(10B, 10B), (10B, 10B'), E=19.0, 21.0, 23.0, 24.0, 25.0, 35.0 MeV; measured particle spectra, σ(θ, E) at the 20 UD tandem accelerator facility of TANDAR laboratory in Buenos Aires; analyzed data by large-scale coupled reaction channel calculation, considering several inelastic transitions of the projectile and the target together with one- and two-step transfer reactions.
doi: 10.1103/PhysRevC.96.054610
2015DE36 Phys.Rev. C 92, 054615 (2015) N.N.Deshmukh, V.Guimaraes, E.Crema, D.Abriola, A.Arazi, E.de Barbara, O.A.Capurro, M.A.Cardona, J.Gallardo, D.Hojman, G.V.Marti, A.J.Pacheco, D.Rodrigues, Y.Y.Yang, A.N.Deshmukh, D.R.Mendes, V.Morcelle, V.Scarduelli, D.S.Monteiro Elastic and inelastic scattering for the 11B + 58Ni system: Target and projectile reorientation effects NUCLEAR REACTIONS 58Ni(11B, 11B), (11B, 11B'), E=19.0, 20.0, 21.0, 23.0, 24.0, 25.0, 35.0 MeV; measured scattered particle spectra, σ(θ, E) at Tandar laboratory in Buenos Aires. 58Ni; measured σ(θ) for the first three excited states. Enriched target. Comparison with coupled-channel calculations. Discussed influence of 11B ground-state-spin reorientation and 58Ni first excited 2+ state on the reaction mechanism.
doi: 10.1103/PhysRevC.92.054615
2014MA03 Phys.Rev. C 89, 014615 (2014) D.Martinez Heimann, A.J.Pacheco, O.A.Capurro, A.Arazi, C.Balpardo, M.A.Cardona, P.F.F.Carnelli, E.de Barbara, J.O.Fernandez Niello, J.M.Figueira, D.Hojman, G.V.Marti, A.E.Negri, D.Rodrigues Differential and total cross sections of noncapture breakup reactions in the 6Li+144Sm system NUCLEAR REACTIONS 144Sm(6Li, dα), E=23-30 MeV; measured Eα, Ed, dα-coin, time-of-flight spectra at TANDAR-CNEA accelerator facility; deduced Q value, distributions of d-α relative energies and binary (6Li) asymptotic scattering angles, differential and integral σ(E) for direct and resonant breakup reactions. Comparison with calculations based on a dynamic classical model.
doi: 10.1103/PhysRevC.89.014615
2012FI11 Phys.Rev. C 86, 044607 (2012) L.Fimiani, J.M.Figueira, G.V.Marti, J.E.Testoni, A.J.Pacheco, W.H.Z.Cardenas, A.Arazi, O.A.Capurro, M.A.Cardona, P.Carnelli, E.de Barbara, D.Hojman, D.Martinez Heimann, A.E.Negri Elastic scattering in the 6, 7Li + 80Se systems NUCLEAR REACTIONS 80Se(6Li, 6Li), (7Li, 7Li), E(cm)=13-24 MeV; measured particle spectra, σ(E, θ), partial reaction cross sections, total reaction cross section; deduced best optical-potential depths, spatial density of absorption. Optical model. Double-folding potential analysis.
doi: 10.1103/PhysRevC.86.044607
2007FE13 Nucl.Phys. A787, 484c (2007) J.O.Fernandez Niello, J.M.Figueira, D.Abriola, A.Arazi, O.A.Capurro, G.V.Marti, D.Martinez Heinmann, A.J.Pacheco, E.de Barbara, I.Padron, P.R.S.Gomes, J.Lubian Study of the Threshold Anomaly in the Scattering of Li Isotopes on 27Al NUCLEAR REACTIONS 27Al(6Li, 6Li), E=7, 8, 10, 12, 18 MeV; 27Al(7Li, 7Li), E=6, 7, 8, 9, 10, 11, 12, 14, 16, 18 MeV; measured σ(θ). Optical model analysis, several potentials compared. Breakup threshold anomaly discussed.
doi: 10.1016/j.nuclphysa.2006.12.072
2007FI01 Phys.Rev. C 75, 017602 (2007) J.M.Figueira, J.O.Fernandez Niello, D.Abriola, A.Arazi, O.A.Capurro, E.de Barbara, G.V.Marti, D.Martinez Heimann, A.E.Negri, A.J.Pacheco, I.Padron, P.R.S.Gomes, J.Lubian, T.Correa, B.Paes Breakup threshold anomaly in the elastic scattering of 6Li on 27Al NUCLEAR REACTIONS 27Al(6Li, 6Li), E=7, 8, 10, 12, 18 MeV; measured σ(θ); deduced breakup threshold anomaly, optical model parameters. Woods-Saxon optical potential, double-folding Sao Paolo potential.
doi: 10.1103/PhysRevC.75.017602
2007LU14 Nucl.Phys. A791, 24 (2007) J.Lubian, T.Correa, B.Paes, J.M.Figueira, D.Abriola, J.O.Fernandez Niello, A.Arazi, O.A.Capurro, E.de Barbara, G.V.Marti, D.Martinez Heinmann, A.E.Negri, A.J.Pacheco, I.Padron, P.R.S.Gomes 7Li breakup polarization potential at near barrier energies NUCLEAR REACTIONS 27Al(7Li, 7Li'), (7Li, 6Li), E=6-18 MeV; measured elastic and one neutron transfer cross sections and angular distributions. Deduced dynamic polarization potential.
doi: 10.1016/j.nuclphysa.2007.04.011
2006FI04 Phys.Rev. C 73, 054603 (2006) J.M.Figueira, D.Abriola, J.O.Fernandez Niello, A.Arazi, O.A.Capurro, E.de Barbara, G.V.Marti, D.Martinez Heimann, A.J.Pacheco, J.E.Testoni, I.Padron, P.R.S.Gomes, J.Lubian Absence of the threshold anomaly in the elastic scattering of the weakly bound projectile 7Li on 27Al NUCLEAR REACTIONS 27Al(7Li, 7Li), E=6-18 MeV; measured σ(θ); deduced optical model parameters, no threshold anomaly.
doi: 10.1103/PhysRevC.73.054603
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