NSR Query Results
Output year order : Descending NSR database version of April 25, 2024. Search: Author = L.R.Gasques Found 89 matches. 2024DI02 Phys.Lett. B 849, 138476 (2024) A.Diaz-Torres, L.R.Gasques, N.V.Antonenko Cluster effects on low-energy carbon burning NUCLEAR REACTIONS 12C(12C, X)24Mg, 20Ne(α, X)24Mg, E not given; calculated potential, phase shifts, fusion probability using the simplified dynamical coupled-channels method; deduced resonance structures in the fusion probability as a function of the collision energy echo molecular resonances of different cluster configurations of 24Mg.
doi: 10.1016/j.physletb.2024.138476
2024MO01 Eur.Phys.J. A 60, 11 (2024) L.Morales-Gallegos, M.Aliotta, L.Gialanella, A.Best, C.G.Bruno, R.Buompane, T.Davinson, M.De Cesare, A.Di Leva, A.D'Onofrio, J.G.Duarte, L.R.Gasques, G.Imbriani, G.Porzio, D.Rapagnani, M.Romoli, F.Terrasi Direct measurements of the 12C+12C reactions cross-sections towards astrophysical energies NUCLEAR REACTIONS 12C(12C, p), (12C, α), E(cm)=2.51-4.36 MeV; measured reaction products, Ep, Ip, Eα, Iα; deduced thick-target yields, σ(θ), S-factors. Comparison with available data. The 3 MV Pelletron Tandem Accelerator Laboratory of the Centre for Isotopic Research on Cultural and Environmental heritage (CIRCE) at the Department of Mathematics and Physics of the University of Campania "Luigi Vanvitelli" in Caserta, Italy.
doi: 10.1140/epja/s10050-024-01233-6
2023CH48 Phys.Rev. C 108, 044602 (2023) J.K.L.Chaves, L.R.Gasques, L.C.Chamon, V.Scarduelli, A.Lepine-Szily, W.A.Y.Hatano, V.A.B.Zagatto Comprehensive study of the 6, 7Li +124Sn reactions at energies near the Coulomb barrier
doi: 10.1103/PhysRevC.108.044602
2023JA13 Astrophys.J. 955, 51 (2023) R.Jain, E.F.Brown, H.Schatz, A.V.Afanasjev, M.Beard, L.R.Gasques, S.S.Gupta, G.W.Hitt, W.R.Hix, R.Lau, P.Moller, W.J.Ong, M.Wiescher, Y.Xu Impact of Pycnonuclear Fusion Uncertainties on the Cooling of Accreting Neutron Star Crusts NUCLEAR REACTIONS 40Mg(40Mg, X)80Cr, 44Mg(40Mg, X)84Cr, 44Mg(44Mg, X)88Cr, 44Mg(38Ne, X)82Ti, 40Mg(38Ne, X)78Ti, 32Ne(32Ne, X)64Ca, 32Ne(30Ne, X)62Ca, 30Ne(30Ne, X)60Ca, 40Mg(24O, X), E not given; calculated abundances, pycnonuclear fusion rates using the reaction network with the thermal evolution code dStar. 56Fe; deduced impact of uncertainties on the depth at which nuclear heat is deposited although the total heating remains constant.
doi: 10.3847/1538-4357/acebc4
2022BU04 Phys.Lett. B 824, 136819 (2022) R.Buompane, A.DiLeva, L.Gialanella, A.DOnofrio, M.De Cesare, J.G.Duarte, A.Fulop, L.R.Gasques, G.Gyurky, L.Morales-Gallegos, F.Marzaioli, G.Palumbo, G.Porzio, D.Rapagnani, V.Roca, D.Rogalla, M.Romoli, C.Santonastaso, D.Schurmann Determination of the 7Be(p, γ)8B cross section at astrophysical energies using a radioactive 7Be ion beam NUCLEAR REACTIONS 1H(7Be, γ), E<1.2 MeV; measured reaction products; deduced σ, yields, S-factors. Comparison with available data. The mass separator ERNA (European Recoil mass Separator for Nuclear Astrophysics).
doi: 10.1016/j.physletb.2021.136819
2022CH01 J.Phys.(London) G49, 035101 (2022) L.C.Chamon, L.R.Gasques, J.C.Zamora Role of inelastic couplings in 4He + 208Pb elastic scattering in a wide energy range NUCLEAR REACTIONS 208Pb(α, α), E<20 MeV; analyzed available data; calculated σ, σ(θ). The optical model (OM) approach.
doi: 10.1088/1361-6471/ac3891
2022GA17 Eur.Phys.J. A 58, 102 (2022) L.R.Gasques, L.C.Chamon, G.P.Cessel The role of inelastic couplings on the 12C + 12C fusion at sub-barrier energies NUCLEAR REACTIONS 12C(12C, X), E(cm)<7 MeV; analyzed available data; deduced S-factor, fusion σ using the Brazilian Nuclear Potential.
doi: 10.1140/epja/s10050-022-00751-5
2022HI12 Phys.Rev. C 106, 064614 (2022) D.J.Hinde, R.du Rietz, D.Y.Jeung, K.J.Cook, M.Dasgupta, E.C.Simpson, R.G.Thomas, M.Evers, C.J.Lin, D.H.Luong, L.R.Gasques, R.Rafiei, A.Wakhle, C.Simenel Experimental investigation of the role of shell structure in quasifission mass distributions NUCLEAR REACTIONS 154Sm, 162Dy, 170Er, 174Yb, 186W, 192Os, 196Pt, 200Hg(48Ti, F), E=198-245 MeV; measured reaction products; deduced fission fragment mass-angle distributions, ratio of the fusion-fission yield to the total fission yield, mass-ratio spectra, compound nuclei forming probability. Pointed that with increasing target (or equivalently compound nucleus)atomic number, a rapid transition occurs from dominant fusion-fission to dominantly quasifission. Comparison to GEF calculations. Position-sensitive multiwire proportional counters (MWPCs) at 14UD tandem electrostatic accelerator (Australian National University).
doi: 10.1103/PhysRevC.106.064614
2022MO18 Eur.Phys.J. A 58, 65 (2022), Retracted Note: Eur.Phys.J. A 59, 120 (2023) L.Morales-Gallegos, M.Aliotta, L.Gialanella, A.Best, C.G.Bruno, R.Buompane, T.Davinson, M.De Cesare, A.Di Leva, A.D'Onofrio, J.G.Duarte, L.R.Gasques, G.Imbriani, G.Porzio, D.Rapagnani, M.Romoli, F.Terrasi Direct measurements of the 12C+12C reactions cross-sections towards astrophysical energies NUCLEAR REACTIONS 12C(12C, p), (12C, α), E(cm)=2.51-4.36 MeV; measured reaction products, Ep, Ip, Eα, Iα; deduced σ, S-factors. CIRCE Tandem Accelerator Laboratory in Caserta (Italy).
doi: 10.1140/epja/s10050-022-00717-7
2022SC11 Phys.Rev. C 106, 044606 (2022) V.Scarduelli, L.R.Gasques, L.C.Chamon, V.A.B.Zagatto, M.A.G.Alvarez, A.Lepine-Szily Consistent analysis of the 11B + 120Sn reaction channels NUCLEAR REACTIONS 120Sn(11B, 11B), (11B, X), (11B, 12C), (11B, 10Be), (11B, 7Li), E=31.2, 32.6, 34.7, 37.2 MeV; measured reaction products, angular distributions; deduced elastic and inelastic scattering σ(θ), transfer reaction σ(θ) for 1p pickup, 1p stripping and 1α stripping. Comparison to coupled-channel with the double-folding Sao Paulo potential and to the experimental results for 10B+120Sn reaction. SATURN (Silicon Array and Telescopes of USP for Reactions and Nuclear applications) and STAR (Silicon Telescopes Array for low statistics nuclear Reactions) with beam from 8 MV Pelletron accelerator at LAFN (Open Laboratory of Nuclear Physics, Sao Paulo, Brazil).
doi: 10.1103/PhysRevC.106.044606
2022ZA04 Phys.Rev. C 106, 014622 (2022) V.A.B.Zagatto, M.Gomez-Ramos, L.R.Gasques, A.M.Moro, L.C.Chamon, M.A.G.Alvarez, V.Scarduelli, J.P.Fernandez-Garcia, J.R.B.de Oliveira, A.Lepine-Szily, A.Arazi Elastic, inelastic, and one-neutron transfer angular distributions of 6Li + 120Sn at energies near the Coulomb barrier NUCLEAR REACTIONS 120Sn(6Li, 6Li), (6Li, 7Li), E=19, 24, 27 MeV; measured reaction products, angular distributions; deduced elastic, inelastic and neutron transfer σ(θ). Comparison to continuum-discretized coupled channels (CDCC) calculations. SATURN (silicon array based on telescopes of USP for reactions and nuclear applications) and STAR (silicon telescopes array for reactions) at tandem accelerator at the LAFN-USP laboratory.
doi: 10.1103/PhysRevC.106.014622
2021GA14 Phys.Rev. C 103, 034616 (2021) L.R.Gasques, M.A.G.Alvarez, A.Arazi, B.V.Carlson, L.C.Chamon, J.P.Fernandez-Garcia, A.Lepine-Szily, J.Lubian, J.Rangel, M.Rodriguez-Gallardo, V.Scarduelli, V.A.B.Zagatto Understanding the mechanisms of nuclear collisions: A complete study of the 10B + 120Sn reaction NUCLEAR REACTIONS 120Sn(10Be, 10Be), (10B, X)4He/6He/6Li/7Li/9Be/10Be/10B/11B/11C/12C, E≈39.70 MeV; measured reaction products, particle spectra, σ(θ) for elastic and inelastic scattering using SATURN and STAR particle-detector arrays of semiconductor silicon surface barrier detectors and single sided silicon strip detector (SSSSD) at the 8 MV tandem accelerator of the University of Sao Paulo; deduced σ(θ) for the 1-neutron transfer channel, energy projection of 9Be nuclei, σ(θ) for 6,7Li, 9,10Be, 11B and 12C. Comparison with coupled reaction channels (CRC) calculations using the SPP as the bare interaction.
doi: 10.1103/PhysRevC.103.034616
2021LO14 J.Phys.(London) G48, 065101 (2021) I.Lombardo, D.Dell'Aquila, M.Cinausero, L.R.Gasques, M.Vigilante, V.A.B.Zagatto, S.Barlini, R.Bolzonella, M.Bruno, A.Buccola, A.Camaiani, S.M.Carturan, G.Casini, C.Ciampi, M.Cicerchia, M.D'Andrea, M.Degerlier, D.Fabris, C.Frosin, F.Gramegna, A.Lepine-Szily, G.Maggioni, G.Mantovani, T.Marchi, A.Ordine, P.Ottanelli, G.Pasquali, S.Piantelli, V.Rigato, M.Russo, L.Scomparin, S.Valdre, G.Verde Study of the 33Cl spectroscopic factors via the 32S(3He, d)33Cl one-proton transfer reaction NUCLEAR REACTIONS 32S(3He, d), E=9.68 MeV; measured reaction products; deduced deuteron spectrum, σ(θ), level energies, J, π, spectroscopic factors. Comparison with finite-range DWBA and coupled-channel calculations and available data. The OSCAR (hOdoscope of silicon for correlations and analysis of reaction) device. The CN van de Graaf accelerator of INFN-Laboratori Nazionali di Legnaro, Italy.
doi: 10.1088/1361-6471/abdee4
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
2020CH14 Phys.Rev. C 101, 034603 (2020) L.C.Chamon, L.R.Gasques, B.V.Carlson Velocity-dependent model for the α-α interaction in the context of the double-folding potential NUCLEAR REACTIONS 4He(α, α), E<30 MeV; calculated elastic scattering phase shifts. 208Pb(α, α), E=23.6, 139 MeV; calculated σ(θ, E). Double-folding approach using Sao Paulo potential (SPP) and velocity dependence. Comparison with experimental data. 8Be; described s-wave resonance of the ground state.
doi: 10.1103/PhysRevC.101.034603
2020CH37 J.Phys.(London) G47, 105103 (2020) L.C.Chamon, L.R.Gasques, J.C.Zamora Effect of thousands of inelastic couplings on the elastic scattering channel NUCLEAR REACTIONS 208Pb(α, α), (α, α'), E=120 MeV; analyzed available data; calculated σ(θ), σ; deduced realistic values for the deformation parameters of 22 discrete excited states through DWBA.
doi: 10.1088/1361-6471/aba424
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
2020SC03 Eur.Phys.J. A 56, 24 (2020) V.Scarduelli, L.R.Gasques, L.C.Chamon, A.Lepine-Szily A method to optimize mass discrimination of particles identified in ΔE-E silicon surface barrier detector systems
doi: 10.1140/epja/s10050-020-00021-2
2020ZH02 Phys.Lett. B 801, 135170 (2020), Corrigendum Phys.Lett. B 803, 135278 (2020) N.T.Zhang, X.Y.Wang, D.Tudor, B.Bucher, I.Burducea, H.Chen, Z.J.Chen, D.Chesneanu, A.I.Chilug, L.R.Gasques, D.G.Ghita, C.Gomoiu, K.Hagino, S.Kubono, Y.J.Li, C.J.Lin, W.P.Lin, R.Margineanu, A.Pantelica, I.C.Stefanescu, M.Straticiuc, X.D.Tang, L.Trache, A.S.Umar, W.Y.Xin, S.W.Xu, Y.Xu Constraining the 12C+12C astrophysical S-factors with the 12C+13C measurements at very low energies NUCLEAR REACTIONS 12C(13C, p)24Na, E=4.640-10.995 MeV; measured reaction products, Eγ, Iγ; deduced σ, branching ratio, S-factor.
doi: 10.1016/j.physletb.2019.135170
2019AL32 Phys.Rev. C 100, 064602 (2019) M.A.G.Alvarez, J.P.Fernandez-Garcia, J.L.Leon-Garcia, M.Rodriguez-Gallardo, L.R.Gasques, L.C.Chamon, V.A.B.Zagatto, A.Lepine-Szily, J.R.B.Oliveira, V.Scarduelli, B.V.Carlson, J.Casal, A.Arazi, D.A.Torres, F.Ramirez Systematic study of optical potential strengths in reactions on 120Sn involving strongly bound, weakly bound, and exotic nuclei NUCLEAR REACTIONS 120Sn(6Li, 6Li), E=19, 24, 27 MeV; measured scattered 6Li, σ(E, θ) using SATURN array of Si detectors at the tandem accelerator of LAFN, University of Sao Paulo. 120Sn(α, α), E(reduced)=5.1, 12.0, 15.6, 19.1 MeV; 120Sn(6He, 6He), E(reduced)=3.8, 4.4, 6.1, 6.7, 8.4 MeV; 120Sn(7Li, 7Li), E(reduced)=0.6, 1.3, 3.2, 5.1, 7.0, 8.9 MeV; 120Sn(9Be, 9Be), E(reduced)=0.3, 0.7, 1.6, 1.7, 3.1, 13.3, 20.7 MeV; 120Sn(10B, 10B), E(reduced)=0.2, 1.6, 2.1, 3.4 MeV; 120Sn(16O, 16O), E(reduced)=2.3, 3.1, 4.0 MeV; 120Sn(18O, 18O), E(reduced)=2.1 MeV; analyzed previous σ(E, θ) data as part of the E-125 experimental campaign, developed at the LAFN, with experiments carried out at Sao Paulo and TANDAR facility in Buenos Aires. Optical model analyses based on the double-folding Sao Paulo potential. NUCLEAR STRUCTURE 6Li, 6He, 9,10Be; calculated matter densities using Hartree-Bogoliubov (HB) theory with NL3 and DDME1 interactions, and from charge densities obtained in (e, e') experiments. 4,6He, 6,7Li, 9,10Be, 16,18O; calculated s-wave barrier parameters using double-folding Sao Paulo potential (SPP) for systems with projectiles focusing on 120Sn.
doi: 10.1103/PhysRevC.100.064602
2018AL29 Phys.Rev. C 98, 024621 (2018) M.A.G.Alvarez, M.Rodriguez-Gallardo, L.R.Gasques, L.C.Chamon, J.R.B.Oliveira, V.Scarduelli, A.S.Freitas, E.S.Rossi, V.A.B.Zagatto, J.Rangel, J.Lubian, I.Padron Elastic scattering, inelastic excitation, and 1n pick-up transfer cross sections for 10B + 120Sn at energies near the Coulomb barrier NUCLEAR REACTIONS 120Sn(10B, 10B), (10B, 10B'), (10B, 11B), E=31.5, 33.5, 35.0, 37.5 MeV; measured particle spectra, elastic, inelastic and one-neutron pick-up σ(θ, E) using Silicon Array based on Telescopes of USP for Reactions and Nuclear applications (SATURN) at the Open Laboratory of Nuclear Physics (LAFN) of the University of Sao Paulo. Comparison with coupled-reaction channel (CRC), optical optical model (OM), and continuum-discretized coupled-channels calculations (CDCC) calculations using the double-folding Sao Paulo potential (SPP).
doi: 10.1103/PhysRevC.98.024621
2018BU12 Eur.Phys.J. A 54, 92 (2018) R.Buompane, N.De Cesare, A.Di Leva, A.D'Onofrio, L.Gialanella, M.Romano, M.De Cesare, J.G.Duarte, Zs.Fulop, L.Morales-Gallegos, Gy.Gyurky, L.R.Gasques, F.Marzaioli, G.Palumbo, G.Porzio, D.Rapagnani, V.Roca, D.Rogalla, M.Romoli, C.Sabbarese, D.Schurmann, F.Terrasi Test measurement of 7Be(p, γ)8B with the recoil mass separator ERNA NUCLEAR REACTIONS 1H(7Be, γ), E(cm)≈ 812 keV; measured 7Be energy loss, 8B recoils and angular distribution using CSSM (Charge State Selection Magnet); deduced σ (within uncertainties agrees with the value adopted by Adelberger et al. (2011)).
doi: 10.1140/epja/i2018-12522-6
2018GA09 Phys.Rev. C 97, 034629 (2018) L.R.Gasques, A.S.Freitas, L.C.Chamon, J.R.B.Oliveira, N.H.Medina, V.Scarduelli, E.S.Rossi, M.A.G.Alvarez, V.A.B.Zagatto, J.Lubian, G.P.A.Nobre, I.Padron, B.V.Carlson Elastic, inelastic, and 1n transfer cross sections for the 10B+ 120Sn reaction NUCLEAR REACTIONS 120Sn(10B, 10B), (10B, 10B'), (10B, 11B), E=37.5 MeV; measured reaction products, particle spectra, σ(θ) for elastic and inelastic scattering using the Silicon Array and Telescopes of Usp for Reactions and Nuclear applications (SATURN) system at the Pelletron accelerator of University of Sao Paulo; analyzed data for σ(θ) using the coupled reaction channel (CRC) and one-step DWBA formalisms. 120Sn; deduced excitation of first 2+ and 3- levels, B(E2), B(E3), and deformation lengths. 10B; deduced excitation of 1+ level, B(E2), deformation length. 119Sn; deduced levels, σ, spectroscopic factors, CRC and DWBA analysis.
doi: 10.1103/PhysRevC.97.034629
2018LA06 Astrophys.J. 859, 62 (2018) R.Lau, M.Beard, S.S.Gupta, H.Schatz, A.V.Afanasjev, E.F.Brown, A.Deibel, L.R.Gasques, G.W.Hitt, W.R.Hix, L.Keek, P.Moller, P.S.Shternin, A.W.Steiner, M.Wiescher, Y.Xu Nuclear Reactions in the Crusts of Accreting Neutron Stars
doi: 10.3847/1538-4357/aabfe0
2018LE19 Phys.Rev. C 98, 064601 (2018) E.Leistenschneider, A.Lepine-Szily, M.A.G.Alvarez, D.R.Mendes, R.Lichtenthaler, V.A.P.Aguiar, M.Assuncao, R.P.Condori, U.U.da Silva, P.N.de Faria, N.Deshmukh, J.G.Duarte, L.R.Gasques, V.Guimaraes, E.L.A.Macchione, M.C.Morais, V.Morcelle, K.C.C.Pires, V.B.Scarduelli, G.Scotton, J.M.B.Shorto, V.A.B.Zagatto Spectroscopy of high-lying resonances in 9Be by the measurement of (p, p), (p, d), and (p, α) reactions with a radioactive 8Li beam NUCLEAR REACTIONS 1H(8Li, p)8Li, (8Li, d)7Li, (8Li, α)5He, C, 197Au(8Li, 8Li), E=22.5, 16 MeV, [secondary 8Li beam produced in 9Be(7Li, 8Li), E=24.4 MeV]; measured reaction products, yields, Ep, Ip, Ed, Id, Eα, Iα, differential σ(θ) using ΔE-E silicon telescope at the RIBRAS facility of the University of Sao Paulo 8-UD tandem accelerator. 9Be; deduced levels, resonances, J, π, l-values, Γp, Γd, Γα, and reduced widths γ2 and the dimensionless reduced widths θ2α for the α and deuteron channels using R-matrix analysis. Comparison with previous experimental data.
doi: 10.1103/PhysRevC.98.064601
2018MO21 Eur.Phys.J. A 54, 132 (2018) L.Morales-Gallegos, M.Aliotta, C.G.Bruno, R.Buompane, T.Davinson, M.De Cesare, A.Di Leva, A.D'Onofrio, J.G.Duarte, L.R.Gasques, L.Gialanella, G.Imbriani, G.Porzio, D.Rapagnani, M.Romoli, D.Schurmann, F.Terrasi, L.Y.Zhang Reduction of deuterium content in carbon targets for 12C + 12C reaction studies of astrophysical interest NUCLEAR REACTIONS 12C(12C, p), (12C, α), (12C, x), E(cm)=0-2 M eV; measured reaction products, ejectile energy, intensity; deduced yields, deuterium content vs target temperature.
doi: 10.1140/epja/i2018-12564-8
2017DI09 Phys.Rev. C 95, 045803 (2017) A.Di Leva, G.Imbriani, R.Buompane, L.Gialanella, A.Best, S.Cristallo, M.De Cesare, A.D'Onofrio, J.G.Duarte, L.R.Gasques, L.Morales-Gallegos, A.Pezzella, G.Porzio, D.Rapagnani, V.Roca, M.Romoli, D.Schurmann, O.Straniero, F.Terrasi Measurement of 1323 and 1487 keV resonances in 15N(α, γ)19F with the recoil separator ERNA NUCLEAR REACTIONS 4He(15N, γ)19F, E(cm)=1323, 1487 keV; measured 19F recoils and reaction yields using the ERNA separator at CIRCE-Italy. 19F; deduced levels, resonances, Γα and Γγ, fractional contribution of resonances and direct capture (DC) component to the total reaction rate of 15N(α, γ)19F, as function of the temperature. Relevance for AGB nucleosynthesis.
doi: 10.1103/PhysRevC.95.045803
2017RA13 Nucl.Instrum.Methods Phys.Res. B407, 217 (2017); Reprint Nucl.Instrum.Methods Phys.Res. B414, 195 (2018) D.Rapagnani, R.Buompane, A.Di Leva, L.Gialanella, M.Busso, M.De Cesare, G.De Stefano, J.G.Duarte, L.R.Gasques, L.Morales-Gallegos, S.Palmerini, M.Romoli, F.Tufariello A supersonic jet target for the cross section measurement of the 12C(a, γ)16O reaction with the recoil mass separator ERNA NUCLEAR REACTIONS 12C(α, γ), E(cm)=1.9 MeV; measured reaction products, 16O; deduced design study of a jet target for the recoil mass separator ERNA, aiming to measure σ. Comparison with CFD calculations.
doi: 10.1016/j.nimb.2017.07.003
2017ZA05 Phys.Rev. C 95, 064614 (2017) V.A.B.Zagatto, J.Lubian, L.R.Gasques, M.A.G.Alvarez, L.C.Chamon, J.R.B.Oliveira, J.A.Alcantara-Nunez, N.H.Medina, V.Scarduelli, A.Freitas, I.Padron, E.S.Rossi, J.M.B.Shorto Elastic scattering, inelastic excitation, and neutron transfer for 7Li + 120Sn at energies around the Coulomb barrier NUCLEAR REACTIONS 120Sn(7Li, 7Li), (7Li, 7Li'), (7Li, 6Li), E=20, 22, 24, 26 MeV; measured particle spectra, σ(θ), inelastic scattering σ(θ) for first 2+ and 3- states of 120Sn and 1/2- state of 7Li, and σ(q→ for 3/2+ g.s., 11/2- and 1/2+ states in 121Sn at LAFN, University of Sao Paulo. 121Sn; deduced levels, calculated theoretical spectroscopic amplitudes. Coupled channel and coupled reaction channel calculations using FRESCO code, and shell model code NUSHELLX used to calculate the spectroscopic amplitudes.
doi: 10.1103/PhysRevC.95.064614
2016CH03 J.Phys.(London) G43, 015107 (2016) Reinterpreting the energy dependence of the optical potential NUCLEAR REACTIONS 208Pb(α, α), E<12 MeV; analyzed available σ, nuclear levels. Coupled-channel calculations involving a large number of inelastic couplings.
doi: 10.1088/0954-3899/43/1/015107
2016KA16 Phys.Rev. C 93, 044605 (2016) S.Kalkal, E.C.Simpson, D.H.Luong, K.J.Cook, M.Dasgupta, D.J.Hinde, I.P.Carter, D.Y.Jeung, G.Mohanto, C.S.Palshetkar, E.Prasad, D.C.Rafferty, C.Simenel, K.Vo-Phuoc, E.Williams, L.R.Gasques, P.R.S.Gomes, R.Linares Asymptotic and near-target direct breakup of 6Li and 7Li NUCLEAR REACTIONS 58Ni(6Li, X), (7Li, X), E=13.07 MeV; 64Zn(6Li, X), E=13.55 MeV; 64Zn(7Li, X), E=13.60 MeV; measured energy, position, and time of flight (TOF) of the charged breakup fragments in coincidence mode using BALiN array, spectra of α-d and α-t breakup pairs at ANU Heavy Ion accelerator facility; deduced prompt and asymptotic breakups, probability of populating the excitation energies above the breakup threshold for 3+ resonant states of 6Li, excitation energy dependent mean-lives, β versus θ12 distributions, asymptotic, near-target, and total direct breakup differential σ(θ). Simulations using a modified version of Monte Carlo classical trajectory model code PLATYPUS.
doi: 10.1103/PhysRevC.93.044605
2016ZA02 J.Phys.(London) G43, 055103 (2016); Corrigendum J.Phys.(London) G44, 069501 (2017) V.A.B.Zagatto, J.R.B.Oliveira, L.R.Gasques, J.A.Alcantara-Nunez, J.G.Duarte, V.A.P.Aguiar, N.H.Medina, W.A.Seale, K.C.C.Pires, A.Freitas, J.Lubian, J.M.B.Shorto, F.A.Genezini, E.S.Rossi, Jr. Elastic and inelastic angular distributions of the 7Li+120Sn system for energies near the Coulomb barrier NUCLEAR REACTIONS 120Sn(7Li, 7Li), (7Li, 7Li'), E=21, 24, 27 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray spectra, transition energies, yield ratios. Comparison with theoretical calculations.
doi: 10.1088/0954-3899/43/5/055103
2015CH19 J.Phys.(London) G42, 055102 (2015) L.C.Chamon, L.R.Gasques, G.P.A.Nobre, E.S.Rossi, Jr, R.J.de Boer, C.Seymour, M.Wiescher, G.G.Kiss Evidence of a slight nuclear transparency in the alpha-nucleus systems NUCLEAR REACTIONS 120,130Te(α, α'), E<15 MeV; calculated inelastic σ(θ). EMPIRE nuclear model code, comparison with available data.
doi: 10.1088/0954-3899/42/5/055102
2015DU06 J.Phys.(London) G42, 065102 (2015) J.G.Duarte, L.R.Gasques, J.R.B.Oliveira, V.A.B.Zagatto, L.C.Chamon, N.H.Medina, N.Added, W.A.Seale, J.A.Alcantara-Nunez, E.S.Rossi, Jr., P.Amador-Valenzuela, A.Lepine-Szily, A.S.Freitas, V.Scarduelli, V.A.P.Aguiar, J.M.B.Shorto Measurement of fusion cross sections for 16O+16O NUCLEAR REACTIONS 16O(16O, X)28Si/24Mg/27Al/32S, E(cm)=8.28-12.25 MeV; measured reaction products, Eγ, Iγ; deduced σ, S-factor. Comparison with available data.
doi: 10.1088/0954-3899/42/6/065102
2014CH06 J.Phys.(London) G41, 035101 (2014) L.C.Chamon, L.R.Gasques, L.F.M.Alves, V.Guimaraes, P.Descouvemont, R.J.de Boer, M.Wiescher Effect of the inelastic couplings on the scattering of alpha particles by 12C at low energies NUCLEAR REACTIONS 12C(α, α), (α, X)16O, E=7.85-10.42 MeV; analyzed available data, σ and S-factors; deduced the effect of the coupling of the first 2+ state in 12C.
doi: 10.1088/0954-3899/41/3/035101
2014MO06 Phys.Lett. B 732, 228 (2014) V.Morcelle, K.C.C.Pires, M.Rodriguez-Gallardo, R.Lichtenthaler, A.Lepine-Szily, V.Guimaraes, P.N.de Faria, D.R.Mendes, Jr, A.M.Moro, L.R.Gasques, E.Leistenschneider, R.P.Condori, V.Scarduelli, M.C.Morais, A.Barioni, J.C.Zamora, J.M.B.Shorto Four-body effects in the 6He + 58Ni scattering NUCLEAR REACTIONS 58Ni(6He, 6He), E=12.2, 16.5, 21.7 MeV; measured reaction products; deduced σ, four-body effects. Comparison with continuum-discretized coupled-channels calculation.
doi: 10.1016/j.physletb.2014.03.043
2014MO07 Phys.Rev. C 89, 044611 (2014) V.Morcelle, R.Lichtenthaler, R.Linares, M.C.Morais, V.Guimaraes, A.Lepine-Szily, P.R.S.Gomes, J.Lubian, D.R.Mendes, Jr., P.N.De Faria, A.Barioni, L.R.Gasques, J.M.B.Shorto, K.C.C.Pires, J.C.Zamora, R.P.Condori, V.Scarduelli, J.J.Kolata, H.Amro, F.D.Becchetti, H.Jiang, E.F.Aguilera, D.Lizcano, E.Martinez-Quiroz, H.Garcia Elastic scattering and total reaction cross section for the 7Be + 27Al system at near-barrier energies NUCLEAR REACTIONS 27Al(7Be, 7Be), [secondary 7Be produced in 3He(6Li, 7Be) primary reaction], E=10.0, 13.8, 15.2, 15.4 MeV; measured particle spectra, elastic σ(E, θ) using RIBRAS system at Sao Paulo, and TwinSol at NSL-Notre Dame facilities; deduced mean radii of sensitivity, energy dependence of the interacting optical potential, total reaction σ(E). Optical model analysis using the double-folding Sao Paulo and phenomenological Woods-Saxon and Sao Paulo potentials. Analysis of data obtained for 27Al, 197Au(8B, 8B) reactions in progress.
doi: 10.1103/PhysRevC.89.044611
2014SC01 Nature(London) 505, 62 (2014) H.Schatz, S.Gupta, P.Moller, M.Beard, E.F.Brown, A.T.Deibel, L.R.Gasques, W.R.Hix, L.Keek, R.Lau, A.W.Steiner, M.Wiescher Strong neutrino cooling by cycles of electron capture and β- decay in neutron star crusts NUCLEAR STRUCTURE 105Zr; calculated single-particle energy levels, J, π, hexadecapole deformation parameters.
doi: 10.1038/nature12757
2014ZA12 Nucl.Instrum.Methods Phys.Res. A 749, 19 (2014) V.A.B.Zagatto, J.R.B.Oliveira, P.R.P.Allegro, L.C.Chamon, E.W.Cybulska, N.H.Medina, R.V.Ribas, W.A.Seale, C.P.Silva, L.R.Gasques, G.S.Zahn, F.A.Genezini, J.M.B.Shorto, J.Lubian, R.Linares, D.L.Toufen, M.A.G.Silveira, E.S.Rossi Jr, G.P.Nobre γ-Particle coincidence technique for the study of nuclear reactions NUCLEAR REACTIONS 110Pd(18O, 18O'), E=53.6 MeV; measured products, 110Pd; deduced σ(θ). Data were imported from EXFOR entry D0739.
doi: 10.1016/j.nima.2014.02.014
2013CR04 Phys.Rev. C 88, 044616 (2013) E.Crema, M.A.G.Alvarez, N.H.Medina, L.R.Gasques, J.F.P.Huiza, B.Fernandez, Z.Abou-Haidar, P.N.de Faria, P.R.S.Gomes, J.Lubian, D.Verney Quasi-elastic processes of the 48Ca+120Sn system and the 48Ca nuclear matter density NUCLEAR REACTIONS 120Sn(48Ca, 48Ca'), E=152-175 MeV; measured particle spectra, σ(E) at Orsay tandem accelerator facility; deduced quasi-elastic barrier distributions. Large-scale coupled-channel analysis. Role of pairing correlation in 2n-neutron transfer process.
doi: 10.1103/PhysRevC.88.044616
2013OL04 J.Phys.(London) G40, 105101 (2013) J.R.B.Oliveira, F.Cappuzzello, L.C.Chamon, D.Pereira, C.Agodi, M.Bondi, D.Carbone, M.Cavallaro, A.Cunsolo, M.De Napoli, A.Foti, L.R.Gasques, P.R.S.Gomes, R.Linares, J.Lubian, D.Nicolosi, S.Tropea Study of the rainbow-like pattern in the elastic scattering of 16O on 27Al at Elab. = 100 MeV NUCLEAR REACTIONS 27Al(16O, 16O), E=100 MeV; calculated σ, scattering parameters. Comparison with experimental data.
doi: 10.1088/0954-3899/40/10/105101
2012LI03 Phys.Rev. C 85, 014611 (2012); Erratum Phys.Rev. C 96, 029901 (2017) C.J.Lin, R.du Rietz, D.J.Hinde, M.Dasgupta, R.G.Thomas, M.L.Brown, M.Evers, L.R.Gasques, M.D.Rodriguez Systematic behavior of mass distributions in 48Ti-induced fission at near-barrier energies NUCLEAR REACTIONS 144,154Sm, 162Dy, 174Yb, 186W, 192Os, 196Pt, 200Hg, 208Pb(48Ti, F), E=206-296 MeV; measured fission fragment spectra (fragment)(fragment)-coin, fission yields; deduced mass-ratio distributions, mass widths as functions of excitation energy of compound nucleus, and excitation energies at saddle and scission points, mass-width enhancement factors. Comparison with saddle-point and scission-point model calculations.
doi: 10.1103/PhysRevC.85.014611
2012RO10 Phys.Rev.Lett. 108, 162502 (2012) T.Roger, J.Buscher, B.Bastin, O.S.Kirsebom, R.Raabe, M.Alcorta, J.Aysto, M.J.G.Borge, M.Carmona-Gallardo, T.E.Cocolios, J.Cruz, P.Dendooven, L.M.Fraile, H.O.U.Fynbo, D.Galaviz, L.R.Gasques, G.S.Giri, M.Huyse, S.Hyldegaard, K.Jungmann, W.L.Kruithof, M.Lantz, A.Perea, K.Riisager, A.Saastamoinen, B.Santra, P.D.Shidling, M.Sohani, A.J.Sorensen, O.Tengblad, E.Traykov, D.J.van der Hoek, P.Van Duppen, O.O.Versolato, H.W.Wilschut Precise Determination of the Unperturbed 8B Neutrino Spectrum RADIOACTIVITY 8B(β+), 8Be(α) [from 12C(12C, X)8B, E=55 MeV/nucleon]; measured decay products, Eα, Iα, Eβ, Iβ; deduced final state distribution in 8Be, J, π, neutrino spectrum. Comparison with available data, R-matrix fits.
doi: 10.1103/PhysRevLett.108.162502
2011CH13 Phys.Rev. C 83, 034617 (2011) L.C.Chamon, B.V.Carlson, L.R.Gasques α + α scattering reexamined in the context of the Sao Paulo potential NUCLEAR REACTIONS 4He(α, α), E=0.6-29.5 MeV; analyzed σ, phase shift, charge distributions using the velocity-dependent Sao Paulo potential (SPP).
doi: 10.1103/PhysRevC.83.034617
2011CH44 Phys.Rev. C 84, 044607 (2011) L.C.Chamon, L.R.Gasques, B.V.Carlson Approximate treatment of relativistic effects in the low-energy α+α scattering
doi: 10.1103/PhysRevC.84.044607
2011DU02 Phys.Rev.Lett. 106, 052701 (2011) R.du Rietz, D.J.Hinde, M.Dasgupta, R.G.Thomas, L.R.Gasques, M.Evers, N.Lobanov, A.Wakhle Predominant Time Scales in Fission Processes in Reactions of S, Ti and Ni with W: Zeptosecond versus Attosecond NUCLEAR REACTIONS 184W(64Ni, F), E=310-341 MeV; 186W(48Ti, F), E= 220-260 MeV; 186W(34S, F), E=149-189 MeV; measured quasifission products; deduced mass-angle distributions, time scale differences. Comparison with CCFULL calculations.
doi: 10.1103/PhysRevLett.106.052701
2011ZA05 Phys.Rev. C 84, 034611 (2011) J.C.Zamora, V.Guimaraes, A.Barioni, A.Lepine-Szily, R.Lichtenthaler, P.N.de Faria, D.R.Mendes Jr, L.R.Gasques, J.M.B.Shorto, V.Scarduelli, K.C.C.Pires, V.Morcelle, E.Leistenschneider, R.P.Condori, V.A.Zagatto, M.C.Morais, E.Crema 7, 9, 10Be elastic scattering and total reaction cross sections on a 12C target NUCLEAR REACTIONS 12C(7Be, 7Be), E=18.8 MeV; 12C(9Be, 9Be), E=26.0 MeV; 12C(10Be, 10Be), E=23.2 MeV; measured particle spectra, σ(θ); deduced reduced total reaction cross section systematics for several light beams scattered on a carbon target using data from several experiments. Analysis by optical model potentials using Woods-Saxon and double-folding form factors, and continuum discretized coupled-channels (CDCC) method.
doi: 10.1103/PhysRevC.84.034611
2010BE12 At.Data Nucl.Data Tables 96, 541 (2010) M.Beard, A.V.Afanasjev, L.C.Chamon, L.R.Gasques, M.Wiescher, D.G.Yakovlev Astrophysical S factors for fusion reactions involving C, O, Ne, and Mg isotopes NUCLEAR REACTIONS C(C, X), (O, X), (Ne, X), (Mg, X), O(O, X), (Ne, X), (Mg, X), Ne(Ne, X), (Mg, X), Mg(Mg, X), E≈18-30 MeV MeV; calculated S-factors; deduced reaction rates calculation procedure.
doi: 10.1016/j.adt.2010.02.005
2010DA15 Nucl.Phys. A834, 147c (2010) M.Dasgupta, L.R.Gasques, D.H.Luong, R.du Rietz, R.Rafiei, D.J.Hinde, C.J.Lin, M.Evers, A.Diaz-Torres Reaction dynamics of weakly bound nuclei at near-barrier energies NUCLEAR REACTIONS 208Pb, 209Bi(6Li, X), (7Li, X), (9Be, X), (10B, X), (11B, X), E not given; analyzed fusion suppression factor, systematics. Found simple dependency and relation to break-up.
doi: 10.1016/j.nuclphysa.2009.12.025
2010YA19 Phys.Rev. C 82, 044609 (2010) D.G.Yakovlev, M.Beard, L.R.Gasques, M.Wiescher Simple analytic model for astrophysical S factors NUCLEAR REACTIONS 46Mg(46Mg, X), E=29.9 MeV; 12C(12C, X), E=1-12 MeV; C(C, X), (O, X), E=2-17.9 MeV; C(Ne, X), (Mg, X), O(O, X), E=2-19.9 MeV; O(Ne, X), (Mg, X), Ne(Ne, X), E=2-21.9 MeV; Ne(Mg, X), E=2-24.9 MeV; Mg(Mg, X), E=2-29.9 MeV; calculated astrophysical S factors using a simple model with physically meaningful parameters. Comparison with experimental data.
doi: 10.1103/PhysRevC.82.044609
2009GA07 Phys.Rev. C 79, 034605 (2009) L.R.Gasques, D.J.Hinde, M.Dasgupta, A.Mukherjee, R.G.Thomas Suppression of complete fusion due to breakup in the reactions 10, 11B + 209Bi NUCLEAR REACTIONS 209Bi(10B, X), (11B, X)209Rn/210Rn/211Rn/212Rn/213Rn/213Ra/214Ra/215Ra/216Ra/217Ra/210Po/211Po/210At/211At/212At/213At/, E(cm)=52-72 MeV; measured Eα, σ, complete fusion cross section, fission σ, summed σ for (xn), summed σ for (pxn), summed σ for (xn), summed σ for (αxn), summed σ for (xn); deduced complete fusion suppression factors and approximate fraction of incomplete fusion as a function of breakup threshold. Comparisons with cross sections for 186W(30Si, X) reaction. 209Bi(10B, X), (11B, X), E=5-7.5 MeV/nucleon; 209Bi(7Li, X), (6Li, X), E=3.9-7.5 MeV/nucleon; 209Bi(α, X), E=7.5-9.3 MeV/nucleon; deduced empirical fission probabilities. Single-barrier penetration model (SBPM) calculations using Sao Paulo potential of fusion process without breakup, and statistical model calculations.
doi: 10.1103/PhysRevC.79.034605
2008DI23 Int.J.Mod.Phys. E17, 2194 (2008) A.Diaz-Torres, L.R.Gasques, M.Wiescher Astrophysical S-factor for 16O + 16O within the adiabatic molecular picture NUCLEAR REACTIONS 16O(16O, X), E<14 MeV; calculated s-factor excitation functions. Comparison with experiment.
doi: 10.1142/S0218301308011331
2008EV01 Phys.Rev. C 78, 034614 (2008) M.Evers, M.Dasgupta, D.J.Hinde, L.R.Gasques, M.L.Brown, R.Rafiei, R.G.Thomas Systematic study of the nuclear potential diffuseness through high precision back-angle quasi-elastic scattering NUCLEAR REACTIONS 144,154Sm, 166Er, 186W, 197Au, 208Pb(16O, 16O), E=17-26 MeV; measured yields, σ(θ), diffuseness parameter. Coupled-channel calculations.
doi: 10.1103/PhysRevC.78.034614
2008HI07 Phys.Rev.Lett. 100, 202701 (2008) D.J.Hinde, R.G.Thomas, R.du Rietz, A.Diaz-Torres, M.Dasgupta, M.L.Brown, M.Evers, L.R.Gasques, R.Rafiei, M.D.Rodriguez Disentangling Effects of Nuclear Structure in Heavy Element Formation NUCLEAR REACTIONS 186W(46Ti, X), 184W(48Ti, X), 182W(50Ti, X), E=222-241 MeV; measured232Cm compound nucleus mass-angle distributions, mass ratio distributions, fission cross sections; model independent analysis; shell structure effects; comparison with FRLDM calculations.
doi: 10.1103/PhysRevLett.100.202701
2008HI14 Phys.Rev.Lett. 101, 092701 (2008) D.J.Hinde, R.du Rietz, M.Dasgupta, R.G.Thomas, L.R.Gasques Two Distinct Quasifission Modes in the 32S + 232Th Reaction NUCLEAR REACTIONS 232Th(32S, X)264Hs, E=157.8-195.0 MeV; measured absolute σ, fission fragmentσ, σ(θ) and anisotropy, mass-angle and mass-ratio distributions, barrier distributions; comparison with transition state model, Coupled channel calculations.
doi: 10.1103/PhysRevLett.101.092701
2008RA07 Phys.Rev. C 77, 024606 (2008) R.Rafiei, R.G.Thomas, D.J.Hinde, M.Dasgupta, C.R.Morton, L.R.Gasques, M.L.Brown, M.D.Rodriguez Strong evidence for quasifission in asymmetric reactions forming 202Po NUCLEAR REACTIONS 186Os(16O, X)202Po, E=74-105 MeV; 178Hf(24Mg, X)202Po, E=106-144 MeV; 168Er(34S, X)202Po, E=141-174 MeV; 154Sm(48Ti, X)202Po, E=198-235 MeV; measured mass-angle correlations, mass ratio distributions, cross sections.
doi: 10.1103/PhysRevC.77.024606
2008TH01 Phys.Rev. C 77, 034610 (2008) R.G.Thomas, D.J.Hinde, D.Duniec, F.Zenke, M.Dasgupta, M.L.Brown, M.Evers, L.R.Gasques, M.D.Rodriguez, A.Diaz-Torres Entrance channel dependence of quasifission in reactions forming 220Th NUCLEAR REACTIONS 204Pb(16O, X), E=1-1.26 MeV; 186W(34S, X), E=0.95-1.25, 188.9 MeV; 166,170Er(48Ti, X), (50Ti, X), E=0.95-1.25, 208.0, 245.0 MeV; measured mass-angle correlations, mass ratio distributions, standard deviation of fission fragments.
doi: 10.1103/PhysRevC.77.034610
2007DI08 Phys.Rev.Lett. 98, 152701 (2007) A.Diaz-Torres, D.J.Hinde, J.A.Tostevin, M.Dasgupta, L.R.Gasques Relating Breakup and Incomplete Fusion of Weakly Bound Nuclei through a Classical Trajectory Model with Stochastic Breakup NUCLEAR REACTIONS 208Pb(8Be, X), (9Be, X), E(cm) ≈ 40-60 MeV; calculated complete and incomplete fusion σ. Three-dimensional classical dynamical model, no-capture breakup.
doi: 10.1103/PhysRevLett.98.152701
2007DI14 Phys.Lett. B 652, 255 (2007) A.Diaz-Torres, L.R.Gasques, M.Wiescher Effects of nuclear molecular configurations on the astrophysical S-factor for 16O + 16O NUCLEAR REACTIONS 16O(16O, X), E(cm)=0-14 MeV; calculated astrophysical S-factors, single particle levels. Two-center shell model. Comparison with data.
doi: 10.1016/j.physletb.2007.06.077
2007GA39 Phys.Rev. C 76, 024612 (2007) L.R.Gasques, M.Evers, D.J.Hinde, M.Dasgupta, P.R.S.Gomes, R.M.Anjos, M.L.Brown, M.D.Rodriguez, R.G.Thomas, K.Hagino Systematic study of the nuclear potential through high precision back-angle quasi-elastic scattering measurements NUCLEAR REACTIONS 170Er, 186W, 197Au, 208Pb(32S, X), E=90-155 MeV; measured quasi-elastic scattering excitation functions. Compared results to single and coupled channel calculations.
doi: 10.1103/PhysRevC.76.024612
2007GA43 Phys.Rev. C 76, 035802 (2007) L.R.Gasques, E.F.Brown, A.Chieffi, C.L.Jiang, M.Limongi, C.Rolfs, M.Wiescher, D.G.Yakovlev Implications of low-energy fusion hindrance on stellar burning and nucleosynthesis NUCLEAR REACTIONS 12C, 16O(16O, X), E < 12 MeV; 16O(16O, X), E < 15 MeV; analyzed fusion cross sections. Deduced S-factors at astrophysical energies.
doi: 10.1103/PhysRevC.76.035802
2007GA50 Phys.Rev. C 76, 045802 (2007) L.R.Gasques, A.V.Afanasjev, M.Beard, J.Lubian, T.Neff, M.Wiescher, D.G.Yakovlev Sao Paulo potential as a tool for calculating S factors of fusion reactions in dense stellar matter NUCLEAR REACTIONS 16O(16O, X), E(cm)=0-20 MeV; 20O(20O, X), E=0-28 MeV; 20O(26Ne, X), E=0-20 MeV; 20O(32Mg, X), E=0-24 MeV; 26Ne(26Ne, X), E=0-24 MeV; 26Ne(32Mg, X), E=0-28 MeV; 32Mg(32Mg, X), E=0-28 MeV; 22O(22O, X), E=0-20 MeV; 24O(24O, X), E(cm)=0-20 MeV; calculated astrophysical S-factors for fusion reactions. Sao Paulo potential.
doi: 10.1103/PhysRevC.76.045802
2007HI06 Phys.Rev. C 76, 014617 (2007) D.J.Hinde, R.L.Ahlefeldt, R.G.Thomas, K.Hagino, M.L.Brown, M.Dasgupta, M.Evers, L.R.Gasques, M.D.Rodriguez Probing the tail of the nuclear potential between identical nuclei with quasi-elastic Mott scattering NUCLEAR REACTIONS 58Ni(58Ni, 58Ni), E=260=220 MeV; measured angular distributions. Deduced Mott oscillations.
doi: 10.1103/PhysRevC.76.014617
2007NO06 Nucl.Phys. A786, 90 (2007) G.P.A.Nobre, L.C.Chamon, B.V.Carlson, I.J.Thompson, L.R.Gasques Tunneling through a parabolic barrier coupled to an oscillatory degree of freedom: Application to heavy-ion fusion at sub-barrier energies NUCLEAR REACTIONS 58,64Ni(58Ni, X), (64Ni, X), E(cm)=85-115 MeV; calculated fusion excitation functions.
doi: 10.1016/j.nuclphysa.2007.02.005
2007NO08 Phys.Rev. C 75, 044606 (2007) G.P.A.Nobre, L.C.Chamon, L.R.Gasques, B.V.Carlson, I.J.Thompson Consistent analysis of fusion data without adjustable parameters for a wide variety of heavy-ion systems NUCLEAR REACTIONS 12C, 92Zr, 208Pb(12C, X), 16O, 144,148,152,154Sm, 182,186W, 208Pb, 238U(16O, X), 208Pb(18O, X), 68Zn, 92Zr, 100Mo, 144Sm, 208Pb(28Si, X), 92,94,98,100Mo, 104Ru, 108,110Pd, 182W, 208Pb(32S, X), 90,98Zr, 92,100Mo, 104Ru, 108,110Pd(36S, X), 112,122Sn, 144,148,154Sm(40Ar, X), 40,48Ca, 48Ti, 90,98Zr, 192Os, 194Pt(40Ca, X), 90,98Zr(48Ca, X), 58,64Ni, 74Ge, 112,124Sn(58Ni, X), 64Ni, 74Ge, 100Mo(64Ni, X), 70,76Ge, 92Mo, 104Ru(86Kr, X), 90,96Zr(90Zr, X), E ≈ barrier; calculated fusion σ. Sao Paolo potential, comparison with data.
doi: 10.1103/PhysRevC.75.044606
2006GA06 Nucl.Phys. A764, 135 (2006) L.R.Gasques, L.C.Chamon, P.R.S.Gomes, J.Lubian Comparison between heavy-ion reaction and fusion processes for hundreds of systems NUCLEAR REACTIONS 18O(58Ni, 58Ni), E=46 MeV; calculated σ(θ). 18O(58Ni, X), E=28-44 MeV; calculated fusion σ. 12C(12C, X), E=5-4000 MeV; 16O(16O, X), 16O(26Mg, X), 16O(65Cu, X), E=5-70 MeV; calculated total and fusion σ. Comparison with data of large mass range, optical model with Sao Paulo potential.
doi: 10.1016/j.nuclphysa.2005.09.001
2006GA40 Phys.Rev.C 74, 064615 (2006) L.R.Gasques, M.Dasgupta, D.J.Hinde, T.Peatey, A.Diaz-Torres, J.O.Newton Isomer ratio measurements as a probe of the dynamics of breakup and incomplete fusion NUCLEAR REACTIONS 209Bi(6Li, X)212At, E=28-48 MeV; 209Bi(7Li, X)212At/211Po, E=26-52 MeV; 208Pb(9Be, X)211Po, E=36-51 MeV; measured ground and isomeric state σ; deduced angular momentum distribution, related reaction mechanism features.
doi: 10.1103/PhysRevC.74.064615
2006PE26 Phys.Rev. C 74, 034608 (2006) D.Pereira, E.S.Rossi, Jr., G.P.A.Nobre, L.C.Chamon, C.P.Silva, L.R.Gasques, M.A.G.Alvarez, R.V.Ribas, J.R.B.Oliveira, N.H.Medina, M.N.Rao, E.W.Cybulska, W.A.Seale, N.Carlin, P.R.S.Gomes, J.Lubian, R.M.Anjos 18O+110Pd: Measurements and realistic coupled-channel analysis in a transitional region NUCLEAR REACTIONS 110Pd(18O, 18O'), (18O, 16O), (18O, 14C), E=40-58 MeV; measured Eγ, Iγ, (particle)γ-coin; deduced excitation functions. Coupled-channels analysis.
doi: 10.1103/PhysRevC.74.034608
2006YA14 Phys.Rev. C 74, 035803 (2006) D.G.Yakovlev, L.R.Gasques, A.V.Afanasjev, M.Beard, M.Wiescher Fusion reactions in multicomponent dense matter NUCLEAR REACTIONS 12C, 16O(12C, X), (16O, X), E(cm)=0-20 MeV; calculated astrophysical S-factors, fusion rates in dense matter.
doi: 10.1103/PhysRevC.74.035803
2005AL03 Nucl.Phys. A748, 59 (2005) J.J.S.Alves, P.R.S.Gomes, J.Lubian, L.C.Chamon, D.Pereira, R.M.Anjos, E.S.Rossi, Jr., C.P.Silva, M.A.G.Alvarez, G.P.A.Nobre, L.R.Gasques Consistent analysis of peripheral reaction channels and fusion for the 16, 18O + 58Ni systems NUCLEAR REACTIONS 58Ni(16O, 16O), (16O, 16O'), (16O, 12C), E=46 MeV; 58Ni(18O, 18O), (18O, 18O'), (18O, 17O), (18O, 16O), E=46 MeV; measured elastic, inelastic, and transfer σ(E, θ). Coupled-channels analysis, comparison with previous results.
doi: 10.1016/j.nuclphysa.2004.10.020
2005AL45 Braz.J.Phys. 35, 909 (2005) J.J.S.Alves, P.R.S.Gomes, J.Lubian, L.C.Chamon, R.M.Anjos, D.Pereira, E.S.Rossi, Jr., C.P.Silva, M.A.G.Alvarez, G.P.A.Nobre, L.R.Gasques Elastic, Inelastic Scatterings and Transfer Reactions for 16, 18O on 58Ni Described by the Sao Paulo Potential NUCLEAR REACTIONS 58Ni(16O, 16O), (16O, 16O'), (16O, X), (18O, 18O), (18O, 18O'), (18O, X), E=46 MeV; measured elastic, inelastic, and transfer σ(θ). Comparison with model predictions.
doi: 10.1590/S0103-97332005000500052
2005CH74 Braz.J.Phys. 35, 906 (2005) L.C.Chamon, G.P.A.Nobre, D.Pereira, C.P.Silva, E.S.Rossi, Jr., L.R.Gasques, B.V.Carlson Coulomb and Nuclear Potentials Between Deformed Nuclei Applied to the Fusion Process NUCLEAR REACTIONS 64Ni(64Ni, X), E(cm)=85-110 MeV; calculated fusion σ. Coulomb and nuclear interactions, barrier penetration model. Comparison with data.
doi: 10.1590/S0103-97332005000500051
2005GA33 Phys.Rev. C 72, 025806 (2005) L.R.Gasques, A.V.Afanasjev, E.F.Aguilera, M.Beard, L.C.Chamon, P.Ring, M.Wiescher, D.G.Yakovlev Nuclear fusion in dense matter: Reaction rate and carbon burning NUCLEAR REACTIONS 12C(12C, 12C), E(cm)=6-10 MeV; calculated σ(θ). 12C(12C, X), E(cm) ≈ 0-10 MeV; calculated astrophysical S-factor, fusion rate in dense matter.
doi: 10.1103/PhysRevC.72.025806
2005GA38 Nucl.Phys. A758, 134c (2005) L.R.Gasques, A.V.Afanasjev, M.Beard, L.C.Chamon, P.Ring, M.Wiescher Pycnonuclear reaction rates between neutron-rich nuclei NUCLEAR REACTIONS 22,24O(22O, X), 24O, 34Ne, 42Mg(24O, X), 34Ne, 42Mg(34Ne, X), 42Mg(42Mg, X), E(cm) ≈ 0-18 MeV; calculated S-factors, pycnonuclear reactions rates.
doi: 10.1016/j.nuclphysa.2005.05.027
2005GA48 J.Phys.(London) G31, S1859 (2005) L.R.Gasques, M.Beard, L.C.Chamon, M.Wiescher Pycnonuclear 12C + 12C reaction at zero temperature NUCLEAR REACTIONS 12C(12C, X), E ≈ 0-10 MeV; calculated astrophysical S-factor, pycnonuclear reaction rate.
doi: 10.1088/0954-3899/31/10/088
2004CA47 Phys.Rev. C 70, 057602 (2004) B.V.Carlson, L.C.Chamon, L.R.Gasques Accurate approximation for the Coulomb potential between deformed nuclei NUCLEAR REACTIONS 58Ni(58Ni, X), E not given; calculated Coulomb potential.
doi: 10.1103/PhysRevC.70.057602
2004CH36 Phys.Rev. C 70, 014604 (2004) L.C.Chamon, G.P.A.Nobre, D.Pereira, E.S.Rossi, Jr., C.P.Silva, L.R.Gasques, B.V.Carlson Coulomb and nuclear potentials between deformed nuclei NUCLEAR STRUCTURE Z=0-100; compiled, analyzed quadrupole and octupole deformation lengths. NUCLEAR REACTIONS 58Ni(58Ni, X), E not given; calculated Coulomb and nuclear potentials, deformation and orientation dependence.
doi: 10.1103/PhysRevC.70.014604
2004CH47 Prog.Theor.Phys.(Kyoto), Suppl. 154, 169 (2004) L.C.Chamon, L.R.Gasques, D.Pereira, B.V.Carlson A Consistent Description of the Heavy-Ion Fusion and Elastic Scattering Processes Using a Nonlocal Model NUCLEAR REACTIONS 12C, 16O(12C, X), E(cm)=1-18 MeV; 58,64Ni(58Ni, X), (64Ni, X), E(cm)=88-112 MeV; 154Sm(12C, X), E(cm)=40-60 MeV; 58Ni, 144,148,150,154Sm(16O, X), E(cm) ≈ 28-100 MeV; 208Pb(16O, X), (32S, X), E(cm) ≈ 70-180 MeV; 58,64Ni, 94,100Mo(28Si, X), E(cm) ≈ 45-100 MeV; 40Ca, 58Ni, 90,96Zr(40Ca, X), E(cm) ≈ 50-130 MeV; 110Pd, 100Mo(32S, X), (36S, X), E(cm) ≈ 70-120 MeV; 144,154Sm(40Ar, X), E(cm) ≈ 110-170 MeV; 74Ge(58Ni, X), (74Ge, X), E(cm) ≈ 90-160 MeV; 90,96Zr(90Zr, X), E(cm) ≈ 170-200 MeV; 70,76Ge, 92,100Mo, 102,104Ru(86Kr, X), E(cm) ≈ 120-220 MeV; calculated fusion σ. Nonlocal model, comparisons with data.
doi: 10.1143/PTPS.154.169
2004GA16 Phys.Rev. C 69, 034603 (2004) L.R.Gasques, L.C.Chamon, D.Pereira, M.A.G.Alvarez, E.S.Rossi, Jr., C.P.Silva, B.V.Carlson Global and consistent analysis of the heavy-ion elastic scattering and fusion processes NUCLEAR REACTIONS 144,148,150,154Sm, 208Pb(16O, X), E(cm)=50-100 MeV; 12C, 16O(12C, X), E(cm)=2-20 MeV; 64Ni(58Ni, X), E(cm)=80-120 MeV; 27Al, 32S(12C, X), E(cm)=20-150 MeV; calculated fusion σ.
doi: 10.1103/PhysRevC.69.034603
2003AL17 Nucl.Phys. A723, 93 (2003) M.A.G.Alvarez, L.C.Chamon, M.S.Hussein, D.Pereira, L.R.Gasques, E.S.Rossi, Jr., C.P.Silva A parameter-free optical potential for the heavy-ion elastic scattering process NUCLEAR REACTIONS 12C, 16O, 40Ca, 90Zr, 208Pb(12C, 12C), 208Pb(16O, 16O), (40Ar, 40Ar), E ≈ 16-2400 MeV; analyzed σ(θ); deduced optical potential features.
doi: 10.1016/S0375-9474(03)01158-8
2003CH85 Braz.J.Phys. 33, 238 (2003) L.C.Chamon, B.V.Carlson, L.R.Gasques, D.Pereira, C.De Conti, M.A.G.Alvarez, M.S.Hussein, M.A.Candido Ribeiro, E.S.Rossi, Jr., C.P.Silva Nonlocal Description of the Nuclear Interaction
doi: 10.1590/s0103-97332003000200012
2003GA04 Phys.Rev. C 67, 024602 (2003) L.R.Gasques, L.C.Chamon, D.Pereira, V.Guimaraes, A.Lepine-Szily, M.A.G.Alvarez, E.S.Rossi, Jr., C.P.Silva, B.V.Carlson, J.J.Kolata, L.Lamm, D.Peterson, P.Santi, S.Vincent, P.A.De Young, G.Peasley Experimental determination of the surface density for the 6He exotic nucleus NUCLEAR REACTIONS 58Ni(α, α), (6He, 6He), E=8.1, 9.0, 9.1, 9.6 MeV; measured σ(θ). 58Ni(α, α), E=82-288 MeV; analyzed σ(θ). 4,6He deduced ground-state nuclear densities. Unfolding method, comparison with model predictions.
doi: 10.1103/PhysRevC.67.024602
2003GA18 Phys.Rev. C 67, 067603 (2003) L.R.Gasques, L.C.Chamon, D.Pereira, M.A.G.Alvarez, E.S.Rossi, Jr., C.P.Silva, G.P.A.Nobre, B.V.Carlson Systematical study of the optical potential for systems like A+58Ni from sub-barrier data analyses NUCLEAR REACTIONS 58Ni(28Si, 28Si), E=74, 75.5, 77 MeV; measured σ(θ); deduced optical model parameters. 28Si deduced density distribution. NUCLEAR STRUCTURE 4,6He, 12C, 16,18O, 28Si; analyzed scattering data; deduced radii, density distributions.
doi: 10.1103/PhysRevC.67.067603
2002AL01 Phys.Rev. C65, 014602 (2002) M.A.G.Alvarez, E.S.Rossi, Jr., C.P.Silva, L.R.Gasques, L.C.Chamon, D.Pereira, M.N.Rao, B.V.Carlson, C.De Conti, R.M.Anjos, P.R.S.Gomes, J.Lubian, S.Kailas, A.Chatterjee, P.Singh Precise Nuclear Matter Densities from Heavy-Ion Collisions NUCLEAR REACTIONS 16O(16O, 16O), E=1120 MeV; 92Mo(16O, 16O), E=49 MeV; 58,60,62,64Ni, 88Sr, 90,92Zr, 120Sn, 138Ba, 208Pb(16O, 16O), E not given; 58,60Ni(18O, 18O), E not given; analyzed σ. 16,18O deduced matter density distributions, related features. 16O, 58Ni(e, e), E not given; calculated σ vs momentum transfer.
doi: 10.1103/PhysRevC.65.014602
2002CH39 Phys.Rev. C66, 014610 (2002) L.C.Chamon, B.V.Carlson, L.R.Gasques, D.Pereira, C.De Conti, M.A.G.Alvarez, M.S.Hussein, M.A.Candido Ribeiro, E.S.Rossi, Jr., C.P.Silva Toward a Global Description of the Nucleus-Nucleus Interaction NUCLEAR STRUCTURE Z=1-82; analyzed charge distribution data, radii. 16O, 56Fe, 120Sn, 208Pb; calculated nucleon density distributions. NUCLEAR REACTIONS 58Ni(16O, X), E not given; 58Ni(α, X), E=139 MeV; calculated folding potential; deduced parameters. Other reaction data analyzed.
doi: 10.1103/PhysRevC.66.014610
2002GA16 Phys.Rev. C65, 044314 (2002) L.R.Gasques, L.C.Chamon, C.P.Silva, D.Pereira, M.A.G.Alvarez, E.S.Rossi, Jr., V.P.Likhachev, B.V.Carlson, C.De Conti Determination of the 12C Nuclear Density Through Heavy-Ion Elastic Scattering Experiments NUCLEAR REACTIONS 58Ni(12C, 12C), E=26-28.5 MeV; 208Pb(12C, 12C), E=54.5-57 MeV; measured σ(θ); deduced potential features. 12C deduced nucleon density distribution. Comparisons with other reactions and with model predictions.
doi: 10.1103/PhysRevC.65.044314
2002RO29 Nucl.Phys. A707, 325 (2002) E.S.Rossi, Jr., D.Pereira, L.C.Chamon, C.P.Silva, M.A.G.Alvarez, L.R.Gasques, J.Lubian, B.V.Carlson, C.De Conti Effect of the 18O Nuclear Density on the Nuclear Potentials of the 18O + 58, 60Ni Systems NUCLEAR REACTIONS 58,60Ni(18O, 18O'), (18O, 17O), (18O, 16O), E=34-38 MeV; measured quasielastic, inelastic, transfer σ, σ(θ); deduced nuclear potential features. 18O deduced neutron density distribution. Comparison with previous results, model predictions.
doi: 10.1016/S0375-9474(02)01009-6
2001SI02 Nucl.Phys. A679, 287 (2001) C.P.Silva, M.A.G.Alvarez, L.C.Chamon, D.Pereira, M.N.Rao, E.S.Rossi, Jr., L.R.Gasques, M.A.E.Santo, R.M.Anjos, J.Lubian, P.R.S.Gomes, C.Muri, B.V.Carlson, S.Kailas, A.Chatterjee, P.Singh, A.Shrivastava, K.Mahata, S.Santra The Heavy-Ion Nuclear Potential: Determination of a systematic behavior at the region of surface interaction distances NUCLEAR REACTIONS 120Sn(16O, 16O), E=53-55 MeV; 138Ba(16O, 16O), E=54-57 MeV; 208Pb(16O, 16O), E=74-78 MeV; measured σ(θ); deduced optical potentials. Double-folding calculations with microscopic densities.
doi: 10.1016/S0375-9474(00)00347-X
1999AL23 Nucl.Phys. A656, 187 (1999) M.A.G.Alvarez, L.C.Chamon, D.Pereira, E.S.Rossi, Jr., C.P.Silva, L.R.Gasques, H.Dias, M.O.Roos Experimental Determination of the Ion-Ion Potential in the N = 50 Target Region: A tool to probe ground-state nuclear densities NUCLEAR REACTIONS 88Sr, 90,92Zr, 92Mo(16O, 16O), E=43-49 MeV; measured elastic, inelastic σ(θ); deduced optical potentials. Shell model and double-folding calculations.
doi: 10.1016/S0375-9474(99)00304-8
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