NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = R.M.Id Betan Found 33 matches. 2023DA16 Phys.Rev. C 108, 044314 (2023) α-decay from 44Ti: A study of microscopic clusterization
doi: 10.1103/PhysRevC.108.044314
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
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
2020AF05 Phys.Rev. C 102, 044330 (2020) Neutron-pair structure in the continuum spectrum of 26O NUCLEAR STRUCTURE 26O; calculated energies and occupation probabilities of the first three 0+ states, trajectory of correlated poles as function of separable strength, wave function occupation for the pole at minimum width using large complex energy single-particle basis, formed by resonances and complex energy scattering states and a separable interaction. Discussed change of the unbound character of 26O into a Borromean nucleus.
doi: 10.1103/PhysRevC.102.044330
2020DA15 Phys.Rev. C 102, 064301 (2020) Estimate of the location of the neutron drip line for calcium isotopes from an exact Hamiltonian with continuum pair correlations NUCLEAR STRUCTURE 41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73Ca; calculated binding energies, S(2n), Fermi level and pairing gaps of even Ca isotopes, energies of single-particle bound levels for odd Ca isotopes from A=41-73, occupation probabilities for 50,54,62,66Ca, for even Ca isotopes, binding energies of 51,53,55,57,59,61Ca; deduced one particle drip line at 57Ca, and the two neutron drip line at 60Ca or 66Ca, depending on the model used. Modified Richardson equations to solve the many-body system, with two isospin independent models, and an isospin dependent model. Comparison with available experimental data.
doi: 10.1103/PhysRevC.102.064301
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
2020ID01 Nucl.Phys. A994, 121676 (2020) Algebraic Gorkov solution in finite systems for the separable pairing interaction
doi: 10.1016/j.nuclphysa.2019.121676
2020MA34 Phys.Rev. C 102, 024309 (2020) X.Mao, J.Rotureau, W.Nazarewicz, N.Michel, R.M.Id Betan, Y.Jaganathen Gamow-shell-model description of Li isotopes and their mirror partners NUCLEAR STRUCTURE 5He, 5,6,7,8,9,10,11Li, 7Be, 8B, 9C, 10N, 11O; calculated levels, resonances, J, π in the framework of the complex-energy Gamow shell model (GSM) assuming the rigid 4He core, and effective interaction between valence nucleons based on a simplified version of the Furutani-Horiuchi-Tamagaki (FHT) potential. Comparison with experimental data.
doi: 10.1103/PhysRevC.102.024309
2018ID01 Nucl.Phys. A970, 398 (2018) The Gamow-state description of the decay energy spectrum of neutron-unbound 25O RADIOACTIVITY 25O(n); calculated gs and first excited state energy, neutron-decay energy spectrum assuming a valence neutron interacting with inert 24O core; deduced peaks in neutron energy spectrum for decay to (3/2)+ gs and to (7/2)+ first excited state (at about 0.8 and 5.7 MeV). Energies of states compared with other calculations.
doi: 10.1016/j.nuclphysa.2018.01.003
2018ID02 Phys.Rev. C 97, 024307 (2018) R.M.Id Betan, A.T.Kruppa, T.Vertse Shadow poles in coupled-channel problems calculated with the Berggren basis NUCLEAR STRUCTURE 5He; calculated locations of the poles of the S matrix for the Cox potential for 3/2+ resonant state of 5He formed in t+d -> α+n fusion reaction using phenomenological two-channel model and Berggren basis for expanding the coupled-channels solutions; deduced shadow pole of 5He migrates between Riemann sheets when the coupling strength is varied.
doi: 10.1103/PhysRevC.97.024307
2017DO02 J.Phys.(London) G44, 045201 (2017) G.X.Dong, N.Michel, K.Fossez, M.Ploszajczak, Y.Jaganathen, R.M.Id Betan Gamow shell model description of radiative capture reactions 6Li(p, γ)7Be and 6Li(n, γ)7Li NUCLEAR REACTIONS 6Li(p, γ), (n, γ), E(cm)<2 MeV; calculated σ, S-factors, energy levels, J, π. Comparison with available data.
doi: 10.1088/1361-6471/aa5f24
2017ID01 Nucl.Phys. A959, 147 (2017) Cooper pairs in the Borromean nuclei 6He and 11Li using continuum single particle level density NUCLEAR STRUCTURE 5,6He, 10,11Li; calculated Borromean halo nuclei low-lying states, J, π, mass excess using single particle level density. Compared with other calculations and available data.
doi: 10.1016/j.nuclphysa.2017.01.004
2017ID02 Nucl.Phys. A960, 131 (2017) Pairing in the BCS and LN approximations using continuum single particle level density NUCLEAR STRUCTURE 100,132Sn; calculated low-lying neutron single-particle energy, J, single-particle level densities, quasiparticle energies in BCS and LN (Lipkin-Nogami) approximate solutions of the pairing Hamiltonian;deduced pairing gap parameter. 102,110,120,124,132,146,162,170Sn; calculated occupation probability, Fermi level evolution, binding energy, mass excess. Compared with AME 2012 data.
doi: 10.1016/j.nuclphysa.2017.02.001
2017JA14 Phys.Rev. C 96, 054316 (2017) Y.Jaganathen, R.M.Id Betan, N.Michel, W.Nazarewicz, M.Ploszajczak Quantified Gamow shell model interaction for psd-shell nuclei NUCLEAR STRUCTURE 5He, 5Li; calculated energies and widths of ground states. 6,7,8He, 6,7,8,9Li, 6,7,8,9Be; calculated binding energies (relative to 4He) and widths of the selected states. 6He, 6Li; calculated two-nucleon correlation densities for ground and first excited states. 4,7,8,9He, 7Be, 7B; calculated levels, J, π, widths. Complex-energy Gamow shell model (GSM), with one-body potential of 4He core modeled by Woods-Saxon + spin-orbit + Coulomb potential, and finite-range nucleon-nucleon interaction. Comparison with other experimental data. NUCLEAR REACTIONS 4He(p, α), (n, α), E<20 MeV; calculated nuclear phase shifts as functions of incident neutron and proton energy using Woods-Saxon parameters, Correlation matrices. Comparison with experimental data.
doi: 10.1103/PhysRevC.96.054316
2016ID01 Phys.Rev. C 93, 069802 (2016) Reply to "Comment on 'α decay in the complex-energy shell model'" RADIOACTIVITY 212Po(α); calculated and discussed eigenvalues of the norm kernel of 212Po, and spectroscopic factor as a function of Rmax in response to comment from 2016Lo08 reference on their original work in 2012Be31 reference.
doi: 10.1103/PhysRevC.93.069802
2015FO05 Phys.Rev. C 91, 034609 (2015) K.Fossez, N.Michel, M.Ploszajczak, Y.Jaganathen, R.M.Id Betan Description of the proton and neutron radiative capture reactions in the Gamow shell model NUCLEAR REACTIONS 7Be(p, γ)8B, E(cm)<3 MeV; 7Li(n, γ)8Li, E(cm)<1.2 MeV; calculated E1, M1 and E2 astrophysical S factors, total astrophysical S factor. Gamow shell model (GSM) in coupled-channel (CC) representation. Comparison with experimental data.
doi: 10.1103/PhysRevC.91.034609
2014SA32 Phys.Rev. C 89, 054609 (2014) P.Salamon, R.G.Lovas, R.M.Id Betan, T.Vertse, L.Balkay Strictly finite-range potential for light and heavy nuclei
doi: 10.1103/PhysRevC.89.054609
2012BE31 Phys.Rev. C 86, 034338 (2012) α decay in the complex-energy shell model RADIOACTIVITY 104Te, 212Po(α); calculated absolute α decay width from R-matrix, single-particle width, and α-decay spectroscopic factor. 104Te; calculated half-life as function of decay energy. Complex-energy shell model in a large valence configuration space with the Berggren ensemble of the average Woods-Saxon potential.
doi: 10.1103/PhysRevC.86.034338
2012ID02 Nucl.Phys. A879, 14 (2012) Using continuum level density in the pairing Hamiltonian: BCS and exact solutions
doi: 10.1016/j.nuclphysa.2012.01.026
2012ID04 Phys.Rev. C 85, 064309 (2012) Exact eigenvalues of the pairing Hamiltonian using continuum level density NUCLEAR STRUCTURE 14,16,18,20C; calculated exact pairing levels, J, π. 14,16,18,20,22,24,28C; calculated ground-state energies, Gamow states. Richardson equations by inclusion of the resonant and nonresonant continuum through the continuum single-particle level density (CSPLD). Comparison with experimental data.
doi: 10.1103/PhysRevC.85.064309
2009DU16 Phys.Rev. C 80, 064311 (2009) G.G.Dussel, R.Id Betan, R.J.Liotta, T.Vertse Collective excitations in the continuum NUCLEAR STRUCTURE 208,210Pb, 210Po, 210Bi; calculated giant pairing (particle-particle and particle-hole) resonance (GPR) wave functions using shell-model formalism in the complex energy plane. NUCLEAR REACTIONS 208Pb(3He, n), E=100 MeV; calculated σ(θ) for two-particle transfer to GPR in 210Po using optical potential model.
doi: 10.1103/PhysRevC.80.064311
2008ID01 Phys.Rev. C 78, 044308 (2008) R.Id Betan, A.T.Kruppa, T.Vertse Complex energy approaches for calculating isobaric analogue states
doi: 10.1103/PhysRevC.78.044308
2008ID02 Phys.Rev. C 78, 044325 (2008) R.Id Betan, G.G.Dussel, R.J.Liotta Assessment of the importance of the pairing interaction in the continuum NUCLEAR STRUCTURE 132Sn; calculated bound single-particle state energies. 134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,163Sn; calculated excitation energies, gap parameters, binding energies.
doi: 10.1103/PhysRevC.78.044325
2007DU23 Nucl.Phys. A789, 182 (2007) G.G.Dussel, R.Id Betan, R.J.Liotta, T.Vertse One- and two-quasiparticle states in the complex energy plane
doi: 10.1016/j.nuclphysa.2007.04.005
2006ID01 Nucl.Phys. A771, 93 (2006) R.Id Betan, N.Sandulescu, T.Vertse Quasiparticle resonances in the BCS approach NUCLEAR STRUCTURE 17O, 79Ni; calculated single-particle states; 20,22O, 84Ni; calculated pairing energies, radii, single-particle states, quasiparticle resonances. Berggren representation.
doi: 10.1016/j.nuclphysa.2006.03.003
2005ID01 J.Phys.(London) G31, S1329 (2005) R.Id Betan, R.J.Liotta, N.Sandulescu, T.Vertse Description of the continuum part of the spectrum by using the complex energy plane NUCLEAR STRUCTURE 80Ni; calculated resonance energies, continuum features. 11Li; calculated ground state wave function, resonance and halo features. Complex energy plane.
doi: 10.1088/0954-3899/31/8/011
2005ID02 Phys.Rev. C 72, 054322 (2005) R.Id Betan, R.J.Liotta, N.Sandulescu, T.Vertse, R.Wyss Complex shell model representation including antibound states NUCLEAR STRUCTURE 11Li, 72Ca; calculated ground and excited states energies, two-particle wave functions; deduced halo features. Shell model formalism with antibound states.
doi: 10.1103/PhysRevC.72.054322
2004ID01 Phys.Lett. B 584, 48 (2004) R.Id Betan, R.J.Liotta, N.Sandulescu, T.Vertse A shell model representation with antibound states NUCLEAR STRUCTURE 11Li, 72Ca; calculated two-particle resonance features, role of antibound states.
doi: 10.1016/j.physletb.2004.01.042
2004ID02 Few-Body Systems 34, 51 (2004) R.Id Betan, R.J.Liotta, N.Sandulescu, T.Vertse Two-Particle Resonances in the Complex Energy Plane NUCLEAR STRUCTURE 11Li; calculated resonance energies.
doi: 10.1007/s00601-004-0028-4
2003ID01 Phys.Rev. C 67, 014322 (2003) R.Id Betan, R.J.Liotta, N.Sandulescu, T.Vertse Shell model in the complex energy plane and two-particle resonances NUCLEAR STRUCTURE 78Ni, 100Sn; calculated single-particle states, two-particle resonance features. Shell model in the complex energy plane.
doi: 10.1103/PhysRevC.67.014322
2003ID03 Acta Phys.Hung.N.S. 18, 267 (2003) R.Id Betan, R.J.Liotta, N.Sandulescu, T.Vertse Clusters as Many-Body Resonances NUCLEAR STRUCTURE 80Ni; calculated two-particle resonance energies.
doi: 10.1556/APH.18.2003.2-4.24
2002ID01 Phys.Rev.Lett. 89, 042501 (2002) R.Id Betan, R.J.Liotta, N.Sandulescu, T.Vertse Two-Particle Resonant States in a Many-Body Mean Field NUCLEAR STRUCTURE 80Ni; calculated two-particle resonance energies. Berggren representation.
doi: 10.1103/PhysRevLett.89.042501
1999CI14 Nucl.Phys. A660, 255 (1999) O.Civitarese, M.Gadella, R.Id Betan On the Mean Value of the Energy for Resonant States
doi: 10.1016/S0375-9474(99)00405-4
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