NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = A.E.Negri Found 12 matches. 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
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
2012WO01 Nucl.Phys. A873, 17 (2012) A.E.Woodard, J.M.Figueira, D.R.Otomar, J.O.Fernandez Niello, J.Lubian, A.Arazi, O.A.Capurro, P.Carnelli, L.Fimiani, G.V.Marti, D.Martinez Heimann, D.S.Monteiro, A.E.Negri, A.J.Pacheco, P.R.S.Gomes Breakup coupling effects on near-barrier inelastic scattering of the weakly bound 6Li projectile on a 144Sm target NUCLEAR REACTIONS 144Sm(6Li, 6Li'), E=23.0-35.1 MeV; measured E(particle), I(particle, θ) using barrier detector array; deduced σ(θ) to discrete states; calculated σ(θ) to discrete states using CDCC.
doi: 10.1016/j.nuclphysa.2011.10.003
2011CA05 Nucl.Phys. A849, 1 (2011) O.A.Capurro, A.J.Pacheco, A.Arazi, J.M.Figueira, D.Martinez Heimann, A.E.Negri Breakup excitation function at backward angles from α-spectra in the 6Li + 144Sm system NUCLEAR REACTIONS 144Sm(6Li, α), E=14-35 MeV; measured Eα, Iα; deduced breakup, σ(θ), reaction mechanism features. Comparison with other data, PACE and SUPERKIN calculations.
doi: 10.1016/j.nuclphysa.2010.10.001
2010AB06 Nucl.Instrum.Methods Phys.Res. B268, 1793 (2010) D.Abriola, P.Carnelli, A.Arazi, J.M.Figueira, O.A.Capurro, M.A.Cardona, J.O.Fernandez Niello, D.Hojman, L.Fimiani, P.Grinberg, D.Martinez Heimann, G.V.Marti, A.E.Negri, A.J.Pacheco Elastic scattering of 7Li + 27Al at several angles in the 7-11 MeV energy range NUCLEAR REACTIONS 27Al(7Li, 7Li), E=7-11 MeV; measured reaction products; deduced elastic scattering σ, σ(θ). Optical potentials, comparison with previous experimental data.
doi: 10.1016/j.nimb.2010.02.076
2010FI01 Phys.Rev. C 81, 024613 (2010) J.M.Figueira, J.O.Fernandez Niello, A.Arazi, O.A.Capurro, P.Carnelli, L.Fimiani, G.V.Marti, D.Martinez Heimann, A.E.Negri, A.J.Pacheco, J.Lubian, D.S.Monteiro, P.R.S.Gomes Energy dependence of the optical potential of weakly and tightly bound nuclei as projectiles on a medium-mass target NUCLEAR REACTIONS 144Sm(6Li, 6Li), E=21.0, 22.1, 22.6, 23.0, 24.1, 26.0, 28.0, 30.1, 32.2, 35.1, 42.3 MeV; 144Sm(7Li, 7Li), E=21.6, 22.1, 22.6, 23.0, 25.0, 27.0, 29.0, 30.0, 32.0, 35.0, 40.8 MeV; measured σ, σ(θ); deduced optical potentials parameters, sensitivity radii, and energy dependence of the real and imaginary parts of the optical potential. Optical model analyses.
doi: 10.1103/PhysRevC.81.024613
2009GO35 Nucl.Phys. A828, 233 (2009) P.R.S.Gomes, J.Lubian, B.Paes, V.N.Garcia, D.S.Monteiro, I.Padron, J.M.Figueira, A.Arazi, O.A.Capurro, L.Fimiani, A.E.Negri, G.V.Marti, J.O.Fernandez Niello, A.Gomez-Camacho, L.F.Canto Near-barrier fusion, breakup and scattering for the 9Be + 144Sm system NUCLEAR REACTIONS 144Sm(9Be, X), E=3048 MeV; measured fusion and elastic σ, σ(θ), σ(E). 144Sm(9Be, X), (16O, X), E=3048 MeV; analyzed fusion σ, breakup mechanism; deduced universal fusion function. Delayed X-ray technique. Coupled channel calculations.
doi: 10.1016/j.nuclphysa.2009.07.008
2009MO03 Phys.Rev. C 79, 014601 (2009) D.S.Monteiro, O.A.Capurro, A.Arazi, J.O.Fernandez Niello, J.M.Figueira, G.V.Marti, D.Martinez Heimann, A.E.Negri, A.J.Pacheco, V.Guimaraes, D.R.Otomar, J.Lubian, P.R.S.Gomes Near- and subbarrier elastic and quasielastic scattering of the weakly bound 6Li projectile on 144Sm NUCLEAR REACTIONS 144Sm(6Li, 6Li), E=14-35 MeV; measured excitation functions. Comparison with coupled-channel calculations.
doi: 10.1103/PhysRevC.79.014601
2009OT01 Phys.Rev. C 80, 034614 (2009) D.R.Otomar, J.Lubian, P.R.S.Gomes, D.S.Monteiro, O.A.Capurro, A.Arazi, J.O.Fernandez Niello, J.M.Figueira, G.V.Marti, D.Martinez Heimann, A.E.Negri, A.J.Pacheco, V.Guimaraes, L.C.Chamon Breakup coupling effects on near-barrier quasi-elastic scattering of 6, 7Li on 144Sm NUCLEAR REACTIONS 144Sm(6Li, X), E=14-35 MeV; 144Sm(7Li, X), E=12-32 MeV; measured particle spectra, quasi-elastic scattering excitation functions and barrier distributions. Comparison with continuum discretized coupled-channel (CDCC) calculations.
doi: 10.1103/PhysRevC.80.034614
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
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