NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = R.Rodriguez-Guzman Found 75 matches. 2023RO05 Phys.Rev. C 107, 044307 (2023) R.Rodriguez-Guzman, L.M.Robledo, C.A.Jimenez-Hoyos, N.C.Hernandez Least action description of dynamic pairing correlations in the fission of curium and californium isotopes based on the Gogny energy density functional RADIOACTIVITY 240,242,246,248,250Cf, 240,242,246,248,250Cm(SF); calculated collective potentials, quadrupole moments, octupole moments, hexadecupole moments, proton and neutron pairing interaction energies, Hartree-Fock-Bogoliubov (HFB) plus rotational correction energies, inner and outer barrier heights of fission paths, and SF T1/2 with the generator coordinate method (GCM) and adiabatic time-dependent HFB (ATDHFB) scheme. Gogny energy density functional with D1M parametrization in the least action scheme. Role of dynamic pairing correlations investigated using the CESlater and CEE LA approximations.
doi: 10.1103/PhysRevC.107.044307
2023RO09 Phys.Rev. C 108, 024301 (2023) R.Rodriguez-Guzman, L.M.Robledo Beyond-mean-field description of octupolarity in dysprosium isotopes with the Gogny-D1M energy density functional NUCLEAR STRUCTURE 138,140,142,144,146,148,150,152,154,156,158,160,162,164,166,168,170,172,174,176,178,180,182,184,186,188,190,192,194,196,198,200,202,204,206,208Dy; calculated excitation energies of the first negative-parity states, B(E1), B(E3), collective wave functions, potential energy surface, positive and negative parity parity-projected potential energy surfaces, ground state quadrupole and octupole deformations. Hartree-Fock-Bogoliubov approximations based on D1M, D1S, and D1M* parametrizations of the Gogny-EDF. Comparison to experimental data.
doi: 10.1103/PhysRevC.108.024301
2022NO10 Phys.Rev. C 106, 064304 (2022) K.Nomura, L.Lotina, R.Rodriguez-Guzman, L.M.Robledo Simultaneous description of β-decay and low-lying structure of neutron-rich even- and odd-mass Rh and Pd nuclei NUCLEAR STRUCTURE 104,106,108,110,112,114,116,118,120,122,124Pd; calculated potential energy surfaces. 104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124Pd, 103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123Rh; calculated single-particle energies, quasiparticle energies, occupation probabilities, levels, J, π. 105,107,109Pd, 103,104,107,109Rh; calculated B(E2), B(M1). 106Rh; calculated magnetic dipole moment. Mapping framework based on the Gogny-EDF and the particle-boson coupling scheme. Constrained Hartree-Fock-Bogoliubov calculations using the Gogny-D1M energy density functional. Comparison to experimental data. RADIOACTIVITY 104,105,106,107,108,109,110,112,113,114,116,117Rh(β-); calculated log ft, reduced matrix elements for GT transitions. Constrained Hartree-Fock-Bogoliubov calculations using the Gogny-D1M energy density functional. Comparison to experimental results.
doi: 10.1103/PhysRevC.106.064304
2022RO01 J.Phys.(London) G49, 015101 (2022) R.Rodriguez-Guzman, L.M.Robledo, K.Nomura, N.Cruz Hernandez Quadrupole-octupole collectivity in the Xe, Ba, Ce and Nd isotopic chains described with mean field and beyond approaches NUCLEAR STRUCTURE 110,112,114,116,118,120,122,124,126,128Ba, 134,136,138,140,142,144,146,148,150,152Ba; calculated collective wave functions, positive and negative parity-projected energies, quadrupole (octupole) deformation of the ground states, HFB energies, parity-projected potential energy surfaces (PPPESs) using mean field based methods.
doi: 10.1088/1361-6471/ac3472
2022RO12 Phys.Rev. C 106, 024335 (2022) R.Rodriguez-Guzman, L.M.Robledo Role of dynamic pairing correlations in fission dynamics. II. Fermium and nobelium isotopes NUCLEAR STRUCTURE 246,250,254,258,262Fm, 250,254,258,262No; calculated RVAP-PNP energies plus the zero point rotational energies as as functions of intrinsic quadrupole moment. 242,244,246,248,250,252,254,256,258,260,262Fm, 250,252,254,256,258,260,262,264No; calculated proton and neutron ground-state pairing interaction energies, inner and outer barrier heights, RVAP-PNP spontaneous fission half-lives. Hartree-Fock-Bogoliubov-based approximations and a restricted variation after particle number projection (RVAP-PNP), based on D1M* parametrization of the Gogny force.
doi: 10.1103/PhysRevC.106.024335
2021ES09 Phys.Rev. C 104, 064314 (2021) A.Esmaylzadeh, V.Karayonchev, K.Nomura, J.Jolie, M.Beckers, A.Blazhev, A.Dewald, C.Fransen, R.-B.Gerst, G.Hafner, A.Harter, L.Knafla, M.Ley, L.M.Robledo, R.Rodriguez-Guzman, M.Rudigier Lifetime measurements to investigate γ softness and shape coexistence in 102Mo NUCLEAR REACTIONS 100Mo(18O, 16O)102Mo, E=52 MeV; measured Eγ, Iγ, γγ-coin, T1/2 of levels by recoil-distance Doppler-shift method using an array of eleven HPGe detectors, and Cologne Plunger device at the Cologne FN Tandem accelerator facility. 102Mo; deduced levels, J, π, B(E2), B(M1), E0 transition probability; calculated deformation-energy surface in the (β, γ) plane. Comparison of levels and B(E2) with mapped interacting boson model (IBM) calculations, with microscopic input from Gogny mean-field. Systematics of 0+ and first 2+ states and B(E2) values in N=52-64, Sr, Zr, Mo and Ru isotopes. Discussed shape coexistence and γ-softness.
doi: 10.1103/PhysRevC.104.064314
2021NO02 Phys.Rev. C 103, 044311 (2021) K.Nomura, R.Rodriguez-Guzman, L.M.Robledo, J.E.Garcia-Ramos Quadrupole-octupole coupling and the onset of octupole deformation in actinides NUCLEAR STRUCTURE 224,226,228,230,232,234Pu, 228,230,232,234,236,238Cf; calculated self-consistent mean-field potential energy surfaces (SCMF-PESs) and sdf-IBM PESs in (β2, β3) plane. 218,220,222,224,226,228,230,232,234,236,238Ra, 220,222,224,226,228,230,232,234,236,238,240Th, 222,224,226,228,230,232,234,236,238,240,242U, 224,226,228,230,232,234,236,238,240,242,244Pu, 226,228,230,232,234,236,238,240,242,244,246Cm, 228,230,232,234,236,238,240,242,244,246,248Cf; calculated β2 and β3 corresponding to the ground-state minimum, deformation energies with respect to spherical configuration, octupole deformation energies, low-energy levels, J, π, B(E1), B(E2), effective quadrupole and octupole deformation parameters. 240Pu; calculated levels, J, π, bands. Hartree-Fock-Bogoliubov approximation, based on the Gogny-D1M energy density functional and corresponding mapped sdf-IBM. Comparison with experimental data taken from databases at Brookhaven National Laboratory.
doi: 10.1103/PhysRevC.103.044311
2021NO11 Phys.Rev. C 104, 044324 (2021) K.Nomura, R.Rodriguez-Guzman, L.M.Robledo, J.E.Garcia-Ramos, N.C.Hernandez Evolution of octupole deformation and collectivity in neutron-rich lanthanides NUCLEAR STRUCTURE 140,142,144,146,148Xe, 142,144,146,148,150Ba, 144,146,148,150,152Ce, 146,148,150,152,154Nd; calculated potential energy surfaces in (β2, β3) planes using self-consistent mean-field (SCMF) and interacting boson model (IBM), low-lying levels of positive- and negative-parity yrast states, strength parameters, level-energy and B(E2) ratios, quadrupole and octupole moments. 144,146Ba, 148,150Nd; calculated levels, J, p, bands, B(E1), B(E2), B(E3) using interacting boson model (IBM). Self-consistent mean-field (SCMF), and interacting boson model (IBM) approaches with Hartree-Fock-Bogoliubov (HFB) approximation and constrains on axially symmetric quadrupole and octupole operators using the Gogny-D1M interaction. Comparison with experimental data.
doi: 10.1103/PhysRevC.104.044324
2021NO13 Phys.Rev. C 104, 054320 (2021) K.Nomura, R.Rodriguez-Guzman, L.M.Robledo Quadrupole-octupole coupling and the evolution of collectivity in neutron-deficient Xe, Ba, Ce, and Nd isotopes NUCLEAR STRUCTURE 108,110,112,114,116,118Xe, 110,112,114,116,118,120Ba, 112,114,116,118,120,122Ce, 114,116,118,120,122,124Nd; calculated self-consistent mean-field (SCMF) and mapped-IBM potential-energy surfaces (PES) in (β2, β3) plane, low-energy yrast states, and states of quasi-β, and quasi-γ bands, B(E1), B(E2), B(E3), ratios E(excited states)/E(first 2+), effective quadrupole and octupole deformations; predicted octupole-deformed ground states for Ba and Ce isotopes near N=56. Mapped sdf-IBM framework, with microscopic input from quadrupole and octupole constrained Hartree-Fock-Bogoliubov (HFB) calculations, based on Gogny D1M energy density functional. Comparison with experimental data.
doi: 10.1103/PhysRevC.104.054320
2021RO02 J.Phys.(London) G48, 015103 (2021) R.Rodriguez-Guzman, Y.M.Humadi, L.M.Robledo Microscopic description of quadrupole-octupole coupling in actinides with the Gogny-D1M energy density functional NUCLEAR STRUCTURE 220,222,224,226,228,230,232,234,236,238,240U, 222,224,226,228,230,232,234,236,238,240,242Pu, 224,226,228,230,232,234,236,238,240,242,244Cm, 226,228,230,232,234,236,238,240,242,244,246Cf; calculated correlation energies, negative-parity excitation energies, reduced transition probabilities B(E1) and B(E3) using static Hartree-Fock-Bogoliubov approach, dynamical beyond-mean-field correlations via both parity restoration and symmetry-conserving generator coordinate method calculations based on the parametrization D1M of the Gogny energy density functional. Comparison with experimental data.
doi: 10.1088/1361-6471/abb000
2021RO13 Phys.Rev. C 103, 044301 (2021) R.RodrIguez-Guzman, L.M.Robledo Microscopic description of quadrupole-octupole coupling in neutron-rich actinides and superheavy nuclei with the Gogny-D1M energy density functional NUCLEAR STRUCTURE 288,290,292,294,296,298,300,302,304No; calculated mean-field potential energy surfaces (MFPESs), parity-projected potential energy surfaces (PPPESs) for negative and positive parities, and collective wave function contours for the ground states and the lowest negative-parity states in (Q20, Q30) planes with the Gogny-D1M energy density functional, single-particle energies for protons and neutrons as a function of quadrupole moment for reflection symmetric and asymmetric shapes. 278,280,282,284,286,288,290,292,294U, 280,282,284,286,288,290,292,294,296Pu, 282,284,286,288,290,292,294,296,298Cm, 284,286,288,290,292,294,296,298,300Cf, 286,288,290,292,294,296,298,300,302Fm, 288,290,292,294,296,298,300,302,304No, 290,292,294,296,298,300,302,304,306Rf, 292,294,296,298,300,302,304,306,308Sg, 294,296,298,300,302,304,306,308,310Hs, 296,298,300,302,304,306,308,310,312Ds; calculated mean-field ground-state quadrupole and octupole deformations, and the octupole correlation energies, correlation energies obtained within the 2D-GCM framework, 2D-GCM energy splittings, B(E1), B(E3). Hartree-Fock-Bogoliubov approach, with dynamical beyond-mean-field correlations via parity restoration and symmetry-conserving generator coordinate method calculations based on the Gogny-D1M energy density functional. Relevance to modeling the nuclear reactions for the r-process nucleosynthesis of superheavy nuclei (SHN).
doi: 10.1103/PhysRevC.103.044301
2020NO01 Phys.Rev. C 101, 014306 (2020) K.Nomura, R.Rodriguez-Guzman, L.M.Robledo Structure of odd-odd Cs isotopes within the interacting boson-fermion-fermion model based on the Gogny-D1M energy density functional NUCLEAR STRUCTURE 123,124Xe, 124,125,126,128,130,132Cs; calculated levels, J, π, band structures, electric quadrupole and magnetic dipole moments, B(E2), B(M1), B(M1)/B(E2), neutron and proton single-particle energies and occupation probabilities for odd-odd Cs isotopes. 124Xe; calculated Gogny-D1M and IBM-2 (β, γ) deformation energy surfaces up to 3 MeV from the global minimum. Interacting boson-fermion-fermion model based on the Gogny-D1M energy density functional framework. Comparison with experimental data from the databases at NNDC.
doi: 10.1103/PhysRevC.101.014306
2020NO02 Phys.Rev. C 101, 024311 (2020) K.Nomura, R.Rodriguez-Guzman, L.M.Robledo β decay of odd-A nuclei with the interacting boson-fermion model based on the Gogny energy density functional NUCLEAR STRUCTURE 124,126,128,130,132,134Xe, 126,128,130,132,134,136Ba; calculated low-lying levels of positive parity, J. 123,125,127,129,131,133Xe, 125,127,129,131,133,135Ba, 125,127,129,131,133,135Cs, 127,129,131,133,135,137La; calculated low-lying levels of positive parity, J, B(M1), B(E2), electric quadrupole and magnetic dipole moments, β-decay properties. 127Xe; calculated levels of positive parity, J using two IBFM models. Interacting boson-fermion model (IBFM), based on the Gogny-D1M nuclear energy density functional (EDF), with the constrained HartreeFock-Bogoliubov (HFB) approximation to compute potential energy surfaces. Comparison with experimental data taken from the ENSDF database at NNDC. RADIOACTIVITY 125,127,129,131,133Cs, 127,129,131,133Ba, 129,131,133,135La(EC), (β+); calculated log ft values and compared with experimental values taken from the ENSDF database at NNDC. IBFM model calculations using input from realistic mean field calculations.
doi: 10.1103/PhysRevC.101.024311
2020NO04 Phys.Rev. C 101, 044318 (2020) K.Nomura, R.Rodriguez-Guzman, L.M.Robledo β decay of even-A nuclei within the interacting boson model with input based on nuclear density functional theory NUCLEAR STRUCTURE 124,126,128,130,132Xe, 124,126,128,130,132Ba, 124,126,128,130,132Cs; calculated levels, J, π using interacting boson model (IBM) with energy density functional (EDF). Comparison with experimental data from the ENSDF database. RADIOACTIVITY 124,126,128Ba, 124,126,128,130,132Cs(β+), (EC); calculated logft for Gamow-Teller (GT) and Fermi (F) transition, and compared with experimental data from the ENSDF database. Energy density functional (EDF) based Interacting boson model (IBM) approach.
doi: 10.1103/PhysRevC.101.044318
2020NO13 Phys.Rev. C 102, 064326 (2020) K.Nomura, R.Rodriguez-Guzman, Y.M.Humadi, L.M.Robledo, J.E.Garcia-Ramos Octupole correlations in light actinides from the interacting boson model based on the Gogny energy density functional NUCLEAR STRUCTURE 218,220,222,224,226,228,230,232,234,236,238Ra, 220,222,224,226,228,230,232,234,236,238,240Th; calculated potential energy surfaces in (β2, β3) plane using self-consistent mean-field (SCMF), and interacting boson model (IBM), energies of yrast positive-parity and negative-parity states, and relative energy splitting between positive- and negative-parity yrast bands, B(E1), B(E2), B(E3), transition quadrupole and octupole moments. Hartree-Fock-Bogoliubov approximation, based on Gogny-D1M energy density functional, and sdf interacting boson model (IBM) Hamiltonian for quadrupole-octupole coupling and collective excitations in even-even actinides. Comparison with experimental data.
doi: 10.1103/PhysRevC.102.064326
2020RO04 Eur.Phys.J. A 56, 43 (2020) R.Rodriguez-Guzman, Y.M.Humadi, L.M.Robledo Microscopic description of fission in superheavy nuclei with the parametrization D1M* of the Gogny energy density functional
doi: 10.1140/epja/s10050-020-00051-w
2019ES04 Phys.Rev. C 100, 064309 (2019) A.Esmaylzadeh, J.-M.Regis, Y.H.Kim, U.Koster, J.Jolie, V.Karayonchev, L.Knafla, K.Nomura, L.M.Robledo, R.Rodriguez-Guzman Lifetime measurements and shape coexistence in 97Sr NUCLEAR REACTIONS 235U(n, F), E=thermal neutrons from high-flux reactor of ILL-Grenoble; measured fission products using Lohengrin spectrometer, Eγ, Iγ, level half-lives by (fragment)γγ(t) fast-timing technique using LaBr detectors for γ detection and ionization chamber for fission fragments. 97Sr; deduced levels, isomer, J, π, B(M1), B(E2). Comparison with previous experimental results, and with interacting boson-fermion model calculation based on microscopic energy density functional.
doi: 10.1103/PhysRevC.100.064309
2019NO04 Phys.Rev. C 99, 034308 (2019) K.Nomura, R.Rodriguez-Guzman, L.M.Robledo Spectroscopy of odd-odd nuclei within the interacting boson-fermion-fermion model based on the Gogny energy-density functional NUCLEAR STRUCTURE 195,196,197,198,199,200Hg, 194,195,196,197,198,199Au; calculated levels, J, π, potential energy surfaces for 196,198,200Hg, strength parameters for 195,197,199Hg, 194,196,198Au nuclei, neutron and proton single-particle energies and occupation probabilities for odd-A nuclides, and B(E2), B(M1), electric quadrupole and magnetic dipole moments for 194,196,198Au using interacting boson-fermion-fermion model (IBFFM) based on the Gogny D1M energy-density functional. Comparison with experimental values taken from databases at NNDC, BNL.
doi: 10.1103/PhysRevC.99.034308
2019RO01 J.Phys.(London) G46, 013001 (2019) L.M.Robledo, T.R.Rodriguez, R.R.Rodriguez-Guzman Mean field and beyond description of nuclear structure with the Gogny force: a review
doi: 10.1088/1361-6471/aadebd
2018NO06 Phys.Rev. C 97, 064313 (2018) K.Nomura, R.Rodriguez-Guzman, L.M.Robledo Description of neutron-rich odd-mass krypton isotopes within the interacting boson-fermion model based on the Gogny energy density functional NUCLEAR STRUCTURE 86,88,90,92,94Kr; calculated deformation energy surfaces in (β, γ) plane, energies of first 2+ and 4+ states, B(E2) and spectroscopic quadrupole moments of the first 2+ states. 87,89,91,93,95Kr; calculated levels, J, π of low-lying states, B(E2), B(M1), spectroscopic quadrupole moments and magnetic dipole moments of the first 5/2+, 3/2+, and 1/2+ states. Interacting boson-fermion model (IBFM) calculations with Gogny-D1M energy density functional. Comparison with experimental data.
doi: 10.1103/PhysRevC.97.064313
2018NO07 Phys.Rev. C 97, 064314 (2018) K.Nomura, R.Rodriguez-Guzman, L.M.Robledo Prolate-to-oblate shape phase transitions in neutron-rich odd-mass nuclei NUCLEAR STRUCTURE 186,188,190,192,194Pt, 186,188,190,192,194Os; calculated deformation energy surfaces in (β, γ) plane, energies of first 4+ and 2+, and second 2+ states, spectroscopic quadrupole moments and B(E2) of first 2+ states. 185,187,189,191,193,195,197,199Pt, 185,187,189,191,193Os, 185,187,189,191,193,195Ir; calculated strength parameters, single particle energies, and occupation probabilities, levels, J, π of low-lying states, effective β and γ deformation parameters, B(E2), B(M1), spectroscopic quadrupole moments and magnetic dipole moments for 195Pt, 189Os, 191Ir. Constrained self-consistent mean-field calculations within the Hartree-Fock-Bogoliubov method using Gogny-D1M energy density functional (EDF) for even-even isotopes, and interacting boson-fermion model (IBFM) Hamiltonian with Gogny-D1M EDF for odd-A isotopes. Comparison with experimental data.
doi: 10.1103/PhysRevC.97.064314
2018RO24 Phys.Rev. C 98, 034308 (2018) R.Rodriguez-Guzman, L.M.Robledo Least action description of spontaneous fission in fermium and nobelium nuclei based on the Gogny energy density functional RADIOACTIVITY 242,244,246,248,250,252,254,256,258,260,262Fm, 250,252,254,256,258,260No(SF); calculated Hartree-Fock-Bogoliubov (HFB) plus rotational correction energies, inner barrier heights of fission paths, and SF half-lives within the generator coordinate method (GCM) and adiabatic time dependent HFB (ATDHFB) scheme. Gogny energy density functional with D1M parametrization in the least action scheme. Comparison with experimental data.
doi: 10.1103/PhysRevC.98.034308
2017NO04 Phys.Rev. C 95, 064310 (2017) K.Nomura, R.RodrIguez-Guzman, L.M.Robledo Structural evolution in germanium and selenium nuclei within the mapped interacting boson model based on the Gogny energy density functional NUCLEAR STRUCTURE 66,68,70,72,74,76,78,80,82,84,86,88,90,92,94Ge, 68,70,72,74,76,78,80,82,84,86,88,90,92,94,96Se; calculated mean-field potential energy surfaces in (β, γ) plane using the Gogny-D1M EDF, and the IBM, level energies and B(E2) of low-lying 0+, 2+ and 4+ states, fraction of intruder configuration in 0+ states, spectroscopic quadrupole moments of 2+ states, ρ2(E0). 70,72,74,92Ge, 72,74,76,94Se; calculated positive-parity levels, J. Shape/phase transitions and shape coexistence. Interacting boson model (IBM) with self-consistent mean-field calculation based on the Gogny-D1M energy density functional, with mean-field energy surface from constrained Hartree-Fock-Bogoliubov (HFB) method. Comparison with experimental data.
doi: 10.1103/PhysRevC.95.064310
2017NO07 Phys.Rev. C 96, 014314 (2017) K.Nomura, R.Rodriguez-Guzman, L.M.Robledo Description of odd-mass nuclei within the interacting boson-fermion model based on the Gogny energy density functional NUCLEAR STRUCTURE 149,151,153,155Eu, 149,151,153,155Sm, 195Pt, 195Au; calculated spherical single-particle energies, occupation probabilities of the single-particle orbitals, parameters of the boson-fermion Hamiltonian, coupling constants of the boson-fermion interaction, levels, J, π, B(E2), B(M1), electric quadrupole and magnetic dipole moments, bands and wavefunction amplitudes for levels in 195Pt and 195Au. 148,150,152,154Sm, 194Pt; calculated parameters of the boson Hamiltonian, potential energy surface contours in (β, γ) plane, low-lying levels, J, π, B(E2) for 194Pt. Interacting boson fermion model (IBFM) with parameters based on the Hartree-Fock-Bogoliubov (HFB) approximation, and with the Gogny-D1M energy density functional (EDF) at the mean-field level. Comparison with experimental data.
doi: 10.1103/PhysRevC.96.014314
2017NO08 Phys.Rev. C 96, 034310 (2017) K.Nomura, R.Rodriguez-Guzman, Y.M.Humadi, L.M.Robledo, H.Abusara Structure of krypton isotopes within the interacting boson model derived from the Gogny energy density functional NUCLEAR STRUCTURE 70,72,74,76,78,80,82,84,86,88,90,92,94,96,98,100Kr; calculated (β, γ)-deformation energy surfaces, mapped IBM energy surfaces, energies, B(E2) and ρ2(E0) for first and second 2+, first 4+ and second 0+ states using Gogny-D1M and relativistic DD-PC1 energy density functionals (EDFs). 74,76,96,98Kr; calculated positive-parity levels, J using Gogny-D1M EDF. 76,98Kr; calculated low-energy positive-parity levels, J using Gogny D1S, D1M, D1N, relativistic DD-ME2 and DD-PC1 EDFs. Discussed shape transition and shape coexistence phenomena. Interacting boson model (IBM), with Hamiltonian from mean-field calculations based on several parametrizations of the Gogny energy density functional and the relativistic mean-field Lagrangian. Comparison with available experimental data.
doi: 10.1103/PhysRevC.96.034310
2017NO12 Phys.Rev. C 96, 064316 (2017) K.Nomura, R.Rodriguez-Guzman, L.M.Robledo Shape transitions in odd-mass γ-soft nuclei within the interacting boson-fermion model based on the Gogny energy density functional NUCLEAR STRUCTURE 129,131,133,135,137Ba, 127,129,131,133,135,137Xe, 129,131,133,135,137La, 127,129,131,133,135Cs; calculated single-particle energies, strength parameter of boson-fermion interaction, low-lying levels, J, π, B(E2), B(M1), spectroscopic quadrupole moments, magnetic moments. 128,130,132,134,136Ba, 126,128,130,132,134Xe; calculated Gogny-D1M and mapped IBM energy surfaces in (β2, γ) plane, low-lying levels, J, π. Interacting boson-fermion model (IBFM), with parameters determined from the microscopic Hartree-Fock-Bogoliubov (HFB) approximation, based on the parametrization D1M of the Gogny energy density functional. Comparison with experimental data taken from the databases at NNDC.
doi: 10.1103/PhysRevC.96.064316
2017RO28 Eur.Phys.J. A 53, 245 (2017) R.Rodriguez-Guzman, L.M.Robledo Microscopic description of fission in odd-mass uranium and plutonium nuclei with the Gogny energy density functional NUCLEAR STRUCTURE 233,235,237,239,241,243,245,247,249U, 233,235,237,239,241,243,245,247,249Pu; calculated binding energy, rotational energy, Q, octupole, hexadecapole moment vs quadrupole moment, gs fission path starting from 233,243U and 233,243Pu, fission fragment mass and charge, fission T1/2 within HFB-EFA (HFB Equal Filling Approximation) using Gogny D1M EDF. Compared with ATD (Adiabatic Time-Dependent) and GCM. Complete results shown only for several nuclei.
doi: 10.1140/epja/i2017-12444-9
2016NO11 Phys.Rev. C 94, 044314 (2016) K.Nomura, R.Rodriguez-Guzman, L.M.Robledo Structural evolution in A ∼ 100 nuclei within the mapped interacting boson model based on the Gogny energy density functional NUCLEAR STRUCTURE 92,94,96,98,100,102,104,106,108Sr, 94,96,98,100,102,104,106,108,110Zr, 96,98,100,102,104,106,108,110,112Mo, 98,100,102,104,106,108,110,112,114Ru; calculated deformation-energy surface contours in (β, γ) plane within the constrained Hartree-Fock-Bogoliubov framework, low-lying yrast and non-yrast levels, J, π, amplitudes of first and second 0+ states, B(E2). Self-consistent mean-field approximation based on the Gogny-D1M energy density functional. Comparison with experimental data taken from NNDC databases.
doi: 10.1103/PhysRevC.94.044314
2016RO04 Eur.Phys.J. A 52, 12 (2016) R.Rodriguez-Guzman, L.M.Robledo Microscopic description of fission in neutron-rich radium isotopes with the Gogny energy density functional NUCLEAR STRUCTURE 232,234,236,238,240,242,244,246,248,250,252,254,256,258,260,262,264Ra; calculated one-fragment and two-fragments HFB plus zero-point rotational energy, octupole, octupole, hexadecapole moment vs quadrupole moment, deformation, first fission isomer, first and second barrier heights vs neutron number, proton and neutron numbers of two fission fragments, spontaneous fission T1/2 using mean-field (HFB) based on different parameterizations of Gogny density functional.
doi: 10.1140/epja/i2016-16012-7
2016RO28 Eur.Phys.J. A 52, 348 (2016) R.Rodriguez-Guzman, L.M.Robledo Microscopic description of fission in nobelium isotopes with the Gogny-D1M energy density functional NUCLEAR STRUCTURE 250,251,252,253,254,255,256,257,258,259,260No; calculated quadrupole, octupole, hexadecupole moments, pairing interaction energy for protons and neutrons, mass excess, fission paths, fission T1/2 using HFB framework CGM and ATD collective masses with D1M Gogny forces.
doi: 10.1140/epja/i2016-16348-x
2015NO02 Phys.Rev. C 92, 014312 (2015) K.Nomura, R.Rodriguez-Guzman, L.M.Robledo Spectroscopy of quadrupole and octupole states in rare-earth nuclei from a Gogny force NUCLEAR STRUCTURE 146,148,150,152,154,156Sm, 148,150,152,154,156,158Gd; calculated levels, J, π, 0+ states, signature splitting, B(E1), B(E2), B(E3), potential energy surfaces in (β2, β3) plane, parameters of sdf-IBM Hamiltonian, correlation energies for 0+ states. Interacting boson model (IBM) with Hamiltonian parameters from mean-field calculations using Gogny energy density functional. comparison with experimental data, and with results of configuration mixing calculations with the Gogny force within the generator coordinate method (GCM). Discussed structure of excited 0+ states and their connection with double-octupole phonons.
doi: 10.1103/PhysRevC.92.014312
2015RO13 Eur.Phys.J. A 51, 73 (2015) R.Rodriguez-Guzman, L.M.Robledo, M.M.Sharma Microscopic description of quadrupole collectivity in neutron-rich nuclei across the N = 126 shell closure NUCLEAR STRUCTURE 182,184,186,188,190,192,194,196,198,200,202,204,206,208,210,212,214,216Nd, 184,186,188,190,192,194,196,198,200,202,204,206,208,210,212,214,216,218Sm, 186,188,190,192,194,196,198,200,202,204,206,208,210,212,214,216,218,220Gd, 188,190,192,194,196,198,200,202,204,206,208,210,212,214,216,218,220,222Dy, 190,192,194,196,198,200,202,204,206,208,210,212,214,216,218,220,222,224Er, 192,194,196,198,200,202,204,206,208,210,212,214,216,218,220,222,224,226Yb, 194,196,198,200,202,204,206,208,210,212,214,216,218,220,222,224,226,228Hf, 196,198,200,202,204,206,208,210,212,214,216,218,220,222,224,226,228,230W; calculated gs quadrupole deformation, intrinsic deformation, energy potential surfaces, 2n separation energy, mass excess, neutron, proton single-particle energy, J, π using mean field and beyond with Gogny energy density functionals.
doi: 10.1140/epja/i2015-15073-4
2015RU03 Phys.Rev. C 91, 044301 (2015) M.Rudigier, K.Nomura, M.Dannhoff, R-B.Gerst, J.Jolie, N.Saed-Samii, S.Stegemann, J.-M.Regis, L.M.Robledo, R.Rodriguez-Guzman, A.Blazhev, Ch.Fransen, N.Warr, K.O.Zell Evolution of E2 transition strength in deformed hafnium isotopes from new measurements on 172Hf, 174Hf, and 176Hf NUCLEAR REACTIONS 170,172Yb(α, 2n), E=27 MeV; 174Yb(α, 2n), E=26 MeV; measured conversion-electron momentum spectra using Cologne Orange magnetic spectrometer, Eγ, Iγ, γγ-, (ce)γγ-coin, level half-lives by (ce)γ(t) and γγ(t) methods with emphasis on the first 2+ states. 172,174,176Hf; deduced levels, J, π, B(E2). Comparison with previous results, and with theoretical model calculations. NUCLEAR STRUCTURE 168,170,172,174,176,178,180Hf; calculated contour plots of the deformation energy surfaces in (β, γ) plane for 168Hf to 176Hf, parameters for the IBM Hamiltonian, levels, J, π, moments of inertia and B(E2) for levels in the ground-state rotational band. Interacting boson model with Hamiltonian from Gogny HFB calculations using the D1M interaction. Comparison with experimental data.
doi: 10.1103/PhysRevC.91.044301
2014GA08 Phys.Rev. C 89, 034313 (2014) J.E.Garcia-Ramos, K.Heyde, L.M.Robledo, R.Rodriguez-Guzman Shape evolution and shape coexistence in Pt isotopes: Comparing interacting boson model configuration mixing and Gogny mean-field energy surfaces NUCLEAR STRUCTURE 172,174,176,178,180,182,184,186,188,190,192Pt; calculated total energy curves as function of β2, energy surface contours in (β, γ) plane, energies of unperturbed regular and intruder IBM bandheads. Interacting boson model with configuration mixing, and Hartree-Fock-Bogolyubov calculations with Gogny-D1S interaction. Detailed comparison of the two methods.
doi: 10.1103/PhysRevC.89.034313
2014GI07 Phys.Rev. C 90, 054311 (2014) S.A.Giuliani, L.M.Robledo, R.Rodriguez-Guzman Dynamic versus static fission paths with realistic interactions RADIOACTIVITY 232,234,236,238U(SF); calculated HFB energy, collective inertia, and action as functions of particle number fluctuation, spontaneous fission half-lives. Barcelona-Catania-Paris-Madrid and Gogny D1M energy density functionals using the minimum action principle with the adiabatic time dependent HFB (ATDHFB)ATDHFB and generator coordinate method (GCM). Comparison with experimental data.
doi: 10.1103/PhysRevC.90.054311
2014RO09 Phys.Rev. C 89, 054310 (2014) R.Rodriguez-Guzman, L.M.Robledo Microscopic description of fission in uranium isotopes with the Gogny energy density functional RADIOACTIVITY 232,234,236,238,240,242,244,246,248,250,252,254,256,258,260,262,264,266,268,270,272,274,276,278,280U, 238,240,242,244Pu, 240,242,244,246,248Cm, 250,252Cf, 250,252,254,256Fm, 252,254,256No, 256,258,260Rf, 258,260,262Sg, 264Hs, 286Fl(SF); calculated heights of the inner and second barriers, excitation energies of the fission isomers, density contours of some uranium isotopes, HFB plus the zero-point rotational energies, SF half-lives, proton, neutron and mass numbers of fission fragments, S(2n) as function of neutron number. Constrained Hartree-Fock-Bogoliubov (HDF) approximation based on Gogny-like energy density functionals (EDFs). Investigated role of γ degree of freedom by means of triaxial calculations. Discussed uncertainties in predicted SF half-lives arising from building blocks affecting the WKB formula. Comparison with experimental data.
doi: 10.1103/PhysRevC.89.054310
2014RO24 Eur.Phys.J. A 50, 142 (2014) R.Rodriguez-Guzman, L.M.Robledo Microscopic description of fission in neutron-rich plutonium isotopes with the Gogny-D1M energy density functional
doi: 10.1140/epja/i2014-14142-6
2013AL05 Nucl.Phys. A899, 1 (2013); Erratum Nucl.Phys. A947, 260 (2016) M.Albers, K.Nomura, N.Warr, A.Blazhev, J.Jolie, D.Mucher, B.Bastin, C.Bauer, C.Bernards, L.Bettermann, V.Bildstein, J.Butterworth, M.Cappellazzo, J.Cederkall, D.Cline, I.Darby, S.Das Gupta, J.M.Daugas, T.Davinson, H.De Witte, J.Diriken, D.Filipescu, E.Fiori, C.Fransen, L.P.Gaffney, G.Georgiev, R.Gernhauser, M.Hackstein, S.Heinze, H.Hess, M.Huyse, D.Jenkins, J.Konki, M.Kowalczyk, T.Kroll, R.Krucken, J.Litzinger, R.Lutter, N.Marginean, C.Mihai, K.Moschner, P.Napiorkowski, B.S.Nara Singh, K.Nowak, J.Pakarinen, M.Pfeiffer, D.Radeck, P.Reiter, S.Rigby, L.M.Robledo, R.Rodriguez-Guzman, M.Rudigier, M.Scheck, M.Seidlitz, B.Siebeck, G.S.Simpson, P.Thole, T.Thomas, J.Van de Walle, P.Van Duppen, M.Vermeulen, D.Voulot, R.Wadsworth, F.Wenander, K.Wimmer, K.O.Zell, M.Zielinska Shape dynamics in neutron-rich Kr isotopes: Coulomb excitation of 92Kr, 94Kr and 96Kr NUCLEAR REACTIONS 194,196Pt(92Kr, 92Kr'), (94Kr, 94Kr'), (96Kr, 96Kr'), E=2.85 MeV/nucleon; measured projectile and target E, I(θ, t) using DSSD, Eγ, Iγ(θ) from Coulomb excitation using HPGe array and considering Doppler correction, (particle)γ-coin; calculated electromagnetic matrix elements, γ-ray yields using CC code GOSIA2, energy vs deformation using IBM-2 with self-consistent constrained HFB with Gogny functional; deduced Coulomb excitation σ, electromagnetic matrix elements using fit to data, B(E2), quadrupole moments, IBM-2 Hamiltonian parameters. 96Kr calculated levels, J, π; deduced shape coexistence.
doi: 10.1016/j.nuclphysa.2013.01.013
2013NO05 Phys.Rev. C 87, 064313 (2013) K.Nomura, R.Rodriguez-Guzman, L.M.Robledo Shape evolution and the role of intruder configurations in Hg isotopes within the interacting boson model based on a Gogny energy density functional NUCLEAR STRUCTURE 172,174,176,178,180,182,184,186,188,190,192,194,196,198,200,202,204Hg; calculated microscopic DIM and mapped potential energy surface contours in (β, γ) plane, single particle energies as function of β2 deformation parameter, levels, J, π, B(E2), spectroscopic quadrupole moments of first two 2+ states, transition quadrupole moments of higher spin states, fraction of intruder 2p-2h configuration, rms charge radii of ground-states, and E0 parameters from excited 0+ states. Shape coexistence and complex shape dynamics in Hg isotopes. Interacting boson model, constrained Hartree-Fock-Bogoliubov (HFB) calculations using the Gogny-D1M energy density functional. Comparison with experimental data.
doi: 10.1103/PhysRevC.87.064313
2012AL03 Phys.Rev.Lett. 108, 062701 (2012); Erratum Phys.Rev.Lett. 109, 209904 (2012) M.Albers, N.Warr, K.Nomura, A.Blazhev, J.Jolie, D.Mucher, B.Bastin, C.Bauer, C.Bernards, L.Bettermann, V.Bildstein, J.Butterworth, M.Cappellazzo, J.Cederkall, D.Cline, I.Darby, S.Das Gupta, J.M.Daugas, T.Davinson, H.De Witte, J.Diriken, D.Filipescu, E.Fiori, C.Fransen, L.P.Gaffney, G.Georgiev, R.Gernhauser, M.Hackstein, S.Heinze, H.Hess, M.Huyse, D.Jenkins, J.Konki, M.Kowalczyk, T.Kroll, R.Krucken, J.Litzinger, R.Lutter, N.Marginean, C.Mihai, K.Moschner, P.Napiorkowski, B.S.Nara Singh, K.Nowak, T.Otsuka, J.Pakarinen, M.Pfeiffer, D.Radeck, P.Reiter, S.Rigby, L.M.Robledo, R.Rodriguez-Guzman, M.Rudigier, P.Sarriguren, M.Scheck, M.Seidlitz, B.Siebeck, G.Simpson, P.Thole, T.Thomas, J.Van de Walle, P.Van Duppen, M.Vermeulen, D.Voulot, R.Wadsworth, F.Wenander, K.Wimmer, K.O.Zell, M.Zielinska Evidence for a Smooth Onset of Deformation in the Neutron-Rich Kr Isotopes NUCLEAR REACTIONS 194,196Pt(94Kr, 94Kr'), (96Kr, 96Kr'), 285 MeV/nucleon; measured reaction products, Eγ, Iγ. 94,96Kr; deduced J, π, B(E2), spectroscopic quadrupole moments. Comparison with IBM calculations based on the constrained HFB approach using the microscopic Gogny-D1M energy density functional.
doi: 10.1103/PhysRevLett.108.062701
2012NO07 Phys.Rev. C 86, 034322 (2012) K.Nomura, R.Rodriguez-Guzman, L.M.Robledo, N.Shimizu Shape coexistence in lead isotopes in the interacting boson model with a Gogny energy density functional NUCLEAR STRUCTURE 182,184,186,188,190,192Pb; calculated levels, J, π, potential energy surface contours in β-γ plane, B(E2), configuration, spectroscopic quadrupole moments using interacting boson model (IBM) model plus configuration mixing with microscopic input based on the Gogny energy density functional (EDF). Evolution of the shape coexistence in the neutron-deficient lead isotopes. Comparison with experimental data.
doi: 10.1103/PhysRevC.86.034322
2012RO27 Phys.Rev. C 86, 034336 (2012) R.Rodriguez-Guzman, L.M.Robledo, P.Sarriguren Microscopic description of quadrupole-octupole coupling in Sm and Gd isotopes with the Gogny energy density functional NUCLEAR STRUCTURE 146,148,150,152,154Sm, 148,150,152,154,156Gd; calculated mean-field potential energy surfaces in Q20-Q30 plane, B(E1), B(E3), proton and neutron pairing energies, electric dipole moment D, quadrupole moment Q20 and octupole moment Q30, single-particle energies as function of quadrupole and octupole moments, parity-projected potential energy surface contours, dynamical dipole, quadrupole and octupole moments. Gogny-DIS and Gogny-DIM energy density functionals. Comparison with experimental data.
doi: 10.1103/PhysRevC.86.034336
2012RO29 J.Phys.(London) G39, 105103 (2012) L.M.Robledo, R.R.Rodriguez-Guzman Octupole deformation properties of actinide isotopes within a mean-field approach NUCLEAR STRUCTURE 220,222,224,226,228,230,232,234,236,238,240U, 222,224,226,228,230,232,234,236,238,240,242Pu, 222,224,226,228,230,232,234,236,238,240,242Cm, 222,224,226,228,230,232,234,236,238,240,242Cf; calculated octupole deformation, B(E1), B(E3). Systematic mean-field calculations, comparison with experimental data.
doi: 10.1088/0954-3899/39/10/105103
2011DU30 Phys.Rev. C 84, 061301 (2011) J.Dukelsky, SH.Lerma, L.M.Robledo, R.Rodriguez-Guzman, S.M.A.Rombouts Exactly solvable pairing Hamiltonian for heavy nuclei NUCLEAR STRUCTURE 238U, 154Sm; calculated state-dependent gaps, proton pairing tensor, pairing energies. Exactly solvable Hamiltonian from Richardson-Gaudin models. Comparison with Gogny self-consistent mean-field calculations in the Hartree-Fock basis.
doi: 10.1103/PhysRevC.84.061301
2011HA48 Eur.Phys.J. A 47, 129 (2011) J.Hakala, R.Rodriguez-Guzman, V.-V.Elomaa, T.Eronen, A.Jokinen, V.S.Kolhinen, I.D.Moore, H.Penttila, M.Reponen, J.Rissanen, A.Saastamoinen, J.Aysto Precision mass measurements of neutron-rich Y, Nb, Mo, Tc, Ru, Rh, and Pd isotopes RADIOACTIVITY 102,103Y, 108Nb, 113Tc, 114,116Ru, 119Rh, 118,120,121,122Pd, 114Tc, 111Mo(β-)[from proton-induced fission]; measured cyclotron frequency; deduced mass excess, 2n, 2p separation energies using reference ions; calculated mass excess using HFB with Gogny D1S force and D1N Gogny Energy Density Functional. JYFLTRAP Penning trap mass spectrometer. Compared with AME.
doi: 10.1140/epja/i2011-11129-9
2011NO01 Phys.Rev. C 83, 014309 (2011) K.Nomura, T.Otsuka, R.Rodriguez-Guzman, L.M.Robledo, P.Sarriguren Structural evolution in Pt isotopes with the interacting boson model Hamiltonian derived from the Gogny energy density functional NUCLEAR STRUCTURE 172,174,176,178,180,182,184,186,188,190,192,194,196,198,200Pt; calculated potential energy surfaces in the β-γ plane, low-lying spectra of g.s., quasi β and quasi γ bands, B(E2) values, Level schemes for 184,186,188,190,192,194Pt nuclei. Interacting boson model (IBM) Hamiltonian from constrained Hartree-Fock-Bogoliubov (HFB) calculations with the finite range and density-dependent Gogny-D1S energy density functional. Shape transition in Pt nuclei. Comparison with experimental data.
doi: 10.1103/PhysRevC.83.014309
2011NO05 Phys.Rev. C 83, 054303 (2011) K.Nomura, T.Otsuka, R.Rodriguez-Guzman, L.M.Robledo, P.Sarriguren, P.H.Regan, P.D.Stevenson, Zs.Podolyak Spectroscopic calculations of the low-lying structure in exotic Os and W isotopes NUCLEAR STRUCTURE 186,188,190,192,194,196,198Os, 184,186,188,190,192,194,196W; calculated levels, J, π, B(E2), potential energy surfaces, g.s. and quasi γ bands. Interacting boson model (IBM) Hamiltonian determined by (constrained) Hartree-Fock-Bogoliubov calculations with the Gogny-D1S energy density functional (EDF). Comparison with experimental data.
doi: 10.1103/PhysRevC.83.054303
2011RO08 Phys.Rev. C 83, 044307 (2011) R.Rodriguez-Guzman, P.Sarriguren, L.M.Robledo Shape evolution in yttrium and niobium neutron-rich isotopes NUCLEAR STRUCTURE 87,89,91,93,95,97,99,101,103,105,107Y, 89,91,93,95,97,99,101,103,105,107,109Nb; calculated levels, J, π, charge radii, S(2n), one-quasiproton configurations, quadrupole deformations. 100Zr; calculated proton single-particle energies versus quadrupole deformation parameter. 92,94,96,98Kr; calculated Q-γ planes. Z=36-42, N=46-64; calculated charge radii. Self-consistent Hartree-Fock-Bogoliubov calculations with Gogny interactions. Comparison with experimental data.
doi: 10.1103/PhysRevC.83.044307
2010RO06 Phys.Rev. C 81, 024310 (2010) R.Rodriguez-Guzman, P.Sarriguren, L.M.Robledo, J.E.Garcia-Ramos Mean field study of structural changes in Pt isotopes with the Gogny interaction NUCLEAR STRUCTURE 166,168,170,172,174,176,178,180,182,184,186,188,190,192,194,196,198,200,202,204Pt; calculated potential energy curves as function of axial quadrupole moment, Q-γ triaxial planes, mean field excitation energies, quadrupole moment, γ deformation parameter, neutron and proton pairing energies, Thouless-Valatin moments of inertia as function of atomic mass, and spherical occupancies in the proton and neutron ground-state wave functions using the self-consistent Hartree-Fock-Bogoliubov approximation with DIS, DIN, and DIM Gogny interactions. 180,188,202Pt; calculated neutron and proton single particle energies as functions of axial quadrupole moment and γ deformation parameter.
doi: 10.1103/PhysRevC.81.024310
2010RO17 Phys.Lett. B 691, 202 (2010) R.Rodriguez-Guzman, P.Sarriguren, L.M.Robledo, S.Perez-Martin Charge radii and structural evolution in Sr, Zr, and Mo isotopes NUCLEAR STRUCTURE 86,88,90,92,94,96,98,100,102,104,106Sr, 88,90,92,94,96,98,100,102,104,106,108Zr, 88,90,92,94,96,98,100,102,104,106,108Mo; calculated charge radii, neutron separation energies; deduced structure effects, deformation. HFB calculation based on Gogny-D1S.
doi: 10.1016/j.physletb.2010.06.035
2010RO27 Phys.Rev. C 82, 044318 (2010) R.Rodriguez-Guzman, P.Sarriguren, L.M.Robledo Systematics of one-quasiparticle configurations in neutron-rich odd Sr, Zr, and Mo isotopes with the Gogny energy density functional NUCLEAR STRUCTURE 90,92,94,96,98Sr, 92,94,96,98,100Zr, 94,96,98,100,102Mo; calculated potential energy curves as function of axial quadrupole moment. 85,87,89,91,93,95,97,99,101,103,105Sr, 87,89,91,93,95,97,99,101,103,105,107Zr, 89,91,93,95,97,99,101,103,105,107,109Mo; calculated one-quasineutron levels, J, π, configurations using Hartree-Fock-Bogoliubov (HFB)+ equal filling approximation (EFA)+generator coordinate method (GCM) framework. Comparison with experimental data.
doi: 10.1103/PhysRevC.82.044318
2010RO31 Phys.Rev. C 82, 061302 (2010) R.Rodriguez-Guzman, P.Sarriguren, L.M.Robledo Signatures of shape transitions in odd-A neutron-rich rubidium isotopes NUCLEAR STRUCTURE 85,87,89,91,93,95,97,99,101,103,105Rb; calculated one-quasiproton configurations, ground-state spins and parities, quadrupole deformation parameters, charge radii and S(2n) using self-consistent Hartree-Fock-Bogoliubov with Gogny interaction. Comparison with experimental data.
doi: 10.1103/PhysRevC.82.061302
2010SA40 J.Phys.:Conf.Ser. 205, 012024 (2010) P.Sarriguren, R.R.Rodriguez-Guzman, L.M.Robledo Microscopic description of shape evolution in medium-mass nuclei NUCLEAR STRUCTURE 130Xe, 144,146,148,150,152,154,156,158Sm, 184,186,188,190,192,194,196W; calculated quadrupole moment, deformation including tri-axial degrees of freedom, potential energy surface, evolution of ground-state nuclear shapes. 190W; calculated single-particle levels. Self-consistent HFB with Gogny and Skyrme density-dependent interactions.
doi: 10.1088/1742-6596/205/1/012024
2010TO02 Phys.Rev. C 81, 034312 (2010) J.Toivanen, B.G.Carlsson, J.Dobaczewski, K.Mizuyama, R.R.Rodriguez-Guzman, P.Toivanen, P.Vesely Linear response strength functions with iterative Arnoldi diagonalization NUCLEAR STRUCTURE 132Sn; calculated 0+, 1- and 2+ RPA strength functions for isoscalar (IS) and isovector (IV) transitions using iterative non-Hermitian Arnoldi diagonalization procedures.
doi: 10.1103/PhysRevC.81.034312
2009RO20 J.Phys.(London) G36, 115104 (2009) L.M.Robledo, R.Rodriguez-Guzman, P.Sarriguren Role of triaxiality in the ground-state shape of neutron-rich Yb, Hf, W, Os and Pt isotopes NUCLEAR STRUCTURE 180,182,184,186,188,190,192Yb, 182,184,186,188,190,192,194Hf, 184,186,188,190,192,194,194W, 186,188,190,192,194,196,198Os, 188,190,192,194,196,198,200Pt; calculated mean-field energies, single-particle energies, static moments of inertia. Self-consistent HFB approximation.
doi: 10.1088/0954-3899/36/11/115104
2009ZI01 Phys.Rev. C 80, 014317 (2009) M.Zielinska, A.Gorgen, E.Clement, J.-P.Delaroche, M.Girod, W.Korten, A.Burger, W.Catford, C.Dossat, J.Iwanicki, J.Libert, J.Ljungvall, P.J.Napiorkowski, A.Obertelli, D.Pietak, R.Rodriguez-Guzman, G.Sletten, J.Srebrny, Ch.Theisen, K.Wrzosek Shape of 44Ar: Onset of deformation in neutron-rich nuclei near 48Ca NUCLEAR REACTIONS 109Ag(44Ar, 44Ar'), E=2.68 MeV/nucleon; 208Pb(44Ar, 44Ar'), E=3.68 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin, γ yields. 44Ar; deduced levels, B(E2) matrix elements, spectroscopic quadrupole moments. Comparisons with experimental data for neighboring A=42-46 Ar, S and Si nuclides and GCM(GOA), AMPGCM, and Shell model calculations. NUCLEAR STRUCTURE 42Si, 44S, 42,44,46Ar; calculated potential energy surfaces, energies of first 2+ states, B(E2) and quadrupole moments using Hartree-Fock-Bogoliubov formalism with Gogny DIS interaction. 38,40,4244,46,48Ar; calculated mean-square charge radii using GCM(GOA) and spherical Skyrme SGII Hartree-Fock formalism. Comparisons with experimental data.
doi: 10.1103/PhysRevC.80.014317
2008RO15 Phys.Rev. C 77, 064308 (2008) R.Rodriguez-Guzman, Y.Alhassid, G.F.Bertsch Effective shell model Hamiltonians from density functional theory: Quadrupolar and pairing correlations NUCLEAR STRUCTURE 20Ne, 24Mg, 36Ar; calculated correlation energy, occupation probabilities of valence orbitals, deformation energies, pairing energies, energy curves, coupling constants. Hartree-Fock plus Bardeen-Cooper-Schrieffer approximation with Skyrme energy density functional.
doi: 10.1103/PhysRevC.77.064308
2008RO22 Phys.Rev. C 78, 034314 (2008) L.M.Robledo, R.R.Rodriguez-Guzman, P.Sarriguren Evolution of nuclear shapes in medium mass isotopes from a microscopic perspective NUCLEAR STRUCTURE 96,98,100,102,104,106,108,110,112,114,116,118Pd, 118,120,122,124,126,128,130,132,134,136,138,140Xe, 118,120,122,124,126,128,130,132,134,136,138Ba, 146,148,150,152,154,156,158,160Sm, 142,144,146,148,150,152,154,156Nd, 148,150,152,154,156,158,160Gd, 146,148,150,152,154,156,158,160,162Dy; calculated potential energy curves and surfaces as a function of deformation parameters and quadrupole moment. Hartree-Fock-Bogoliubov approximation based on finite range and density dependant Gogny interaction.
doi: 10.1103/PhysRevC.78.034314
2008SA21 Phys.Rev. C 77, 064322 (2008) P.Sarriguren, R.Rodriguez-Guzman, L.M.Robledo Shape transitions in neutron-rich Yb, Hf, W, Os, and Pt isotopes within a Skyrme Hartree-Fock + BCS approach NUCLEAR STRUCTURE 176,178,180,182,184,186,188,190,192Yb, 178,180,182,184,186,188,190,192,194Hf, 180,182,184,186,188,190,192,194,196W, 182,184,186,188,190,192,194,196,198Os, 184,186,188,190,192,194,196,198,200Pt; calculated ratio of excitation energies between first 4+ and 2+ states, potential energy curves, intrinsic quadrupole moments, moments of inertia. Skyrme Hartree-Fock with BCS model.
doi: 10.1103/PhysRevC.77.064322
2007RO26 Phys.Rev. C 76, 064303 (2007) R.Rodriguez-Guzman, P.Sarriguren E(5) and X(5) shape phase transitions within a Skyrme-Hartree-Fock + BCS approach NUCLEAR STRUCTURE 96,98,100,102,104,106,108,110,112,114Pd, 118,120,122,124,126,128,130,132,134,136Xe, 120,122,124,126,128,130,132,134,136,138Ba, 142,144,146,148,150,152,154,156Nd, 144,146,148,150,152,154,156,158Sm, 146,148,150,152,154,156Gd, 148,150,152,154,156,158Dy; calculated E(5) and X(5) symmetries, deformation parameters, potential energy curves. Skyrme-Hartree-Fock model.
doi: 10.1103/PhysRevC.76.064303
2005RO10 Phys.Rev. C 71, 044313 (2005) T.R.Rodriguez, J.L.Egido, L.M.Robledo, R.Rodriguez-Guzman Quality of the restricted variation after projection method with angular momentum projection NUCLEAR STRUCTURE 32,34Mg; calculated level energies, quadrupole moments. Role of additional variational coordinates discussed.
doi: 10.1103/PhysRevC.71.044313
2004EG02 Phys.Rev.Lett. 93, 082502 (2004) J.L.Egido, L.M.Robledo, R.R.Rodriguez-Guzman Unveiling the Origin of Shape Coexistence in Lead Isotopes NUCLEAR STRUCTURE 182,184,186,188,190,192Pb; calculated level energies vs deformation, shape coexistence features. HFB approach, Gogny force.
doi: 10.1103/PhysRevLett.93.082502
2004RO05 Eur.Phys.J. A 19, 45 (2004) R.R.Rodriguez-Guzman, K.W.Schmid Spherical Hartree-Fock calculations with linear-momentum projection before the variation Part I: Energies, form factors, charge densities and mathematical sum rules NUCLEAR STRUCTURE 4He, 12C, 16O, 28Si, 32S, 40Ca; calculated binding energies, hole energies, form factors, charge densities. Spherical Hartree-Fock calculations with linear-momentum projection.
doi: 10.1140/epja/i2003-10108-1
2004RO06 Eur.Phys.J. A 19, 61 (2004) R.R.Rodriguez-Guzman, K.W.Schmid Spherical Hartree-Fock calculations with linear-momentum projection before the variation Part II: Spectral functions and spectroscopic factors NUCLEAR STRUCTURE 4He, 12C, 16O, 28Si, 32S, 40Ca; calculated ground-state spectroscopic factors. Spherical Hartree-Fock calculations with linear-momentum projection.
doi: 10.1140/epja/i2003-10109-0
2004RO10 Int.J.Mod.Phys. E13, 139 (2004) R.R.Rodriguez-Guzman, J.L.Egido, L.M.Robledo Description of the superdeformed band of 36Ar with the Gogny force NUCLEAR STRUCTURE 36Ar; calculated superdeformed band energies, B(E2), related features. Self-consistent cranking approach.
doi: 10.1142/S0218301304001862
2004RO11 Int.J.Mod.Phys. E13, 165 (2004) T.R.Rodriguez, J.L.Egido, L.M.Robledo, R.R.Rodriguez-Guzman On the stability of projection after variation solutions NUCLEAR STRUCTURE 32Mg; calculated deformation energy curves. Projection after variation, stability of solution discussed.
doi: 10.1142/S0218301304001898
2004RO19 Phys.Rev. C 69, 054319 (2004) R.R.Rodriguez-Guzman, J.L.Egido, L.M.Robledo Beyond mean field description of shape coexistence in neutron-deficient Pb isotopes NUCLEAR STRUCTURE 182,184,186,188,190,192Pb; calculated rotational band level energies, quadrupole moments, shape coexistence features. Angular momentum projected generator coordinate method.
doi: 10.1103/PhysRevC.69.054319
2003RO06 Eur.Phys.J. A 17, 37 (2003) R.R.Rodriguez-Guzman, J.L.Egido, L.M.Robledo Quadrupole collectivity of neutron-rich neon isotopes NUCLEAR STRUCTURE 20,22,24,26,28,30,32,34Ne; calculated deformation, transitions B(E2), quadrupole collectivity. Angular momentum projected generator coordinate method.
doi: 10.1140/epja/i2002-10141-6
2002RO03 Phys.Rev. C65, 024304 (2002) R.Rodriguez-Guzman, J.L.Egido, L.M.Robledo Quadrupole Collectivity in N ≈ 28 Nuclei with the Angular Momentum Projected Generator Coordinate Method NUCLEAR STRUCTURE 38,40,42,44S, 40Mg, 42Si, 46Ar, 48Ca; calculated levels, quadrupole moments, potential energy surfaces. Angular momentum projected generator coordinate method.
doi: 10.1103/PhysRevC.65.024304
2002RO32 Nucl.Phys. A709, 201 (2002) R.Rodriguez-Guzman, J.L.Egido, L.M.Robledo Correlations Beyond the Mean Field in Magnesium Isotopes: Angular momentum projection and configuration mixing NUCLEAR STRUCTURE 20,22,24,26,28,30,32,34,36,38,40Mg; calculated single-particle levels, potential energy surfaces, two-neutron separation energies, level energies, quadrupole moments; deduced configuration mixing effects. Angular momentum projected generator coordinate method.
doi: 10.1016/S0375-9474(02)01019-9
2001RO27 Acta Phys.Pol. B32, 2385 (2001) R.R.Rodriguez-Guzman, J.L.Egido, L.M.Robledo Quadrupole Collectivity in the Si Isotopes Around N = 20 NUCLEAR STRUCTURE 32,34,36Si; calculated level energies, deformation, B(E2). Angular momentum projected generator coordinate method.
2000RO06 Phys.Lett. 474B, 15 (2000) R.Rodriguez-Guzman, J.L.Egido, L.M.Robledo Angular Momentum Projected Analysis of Quadrupole Collectivity in 30, 32, 34Mg and 32, 34, 36, 38Si with the Gogny Interaction NUCLEAR STRUCTURE 30,32,34Mg, 32,34,36,38Si; calculated 2+ levels energy, B(E2), potential energy surfaces. HFB theory, exact angular momentum projection.Comparison with data.
doi: 10.1016/S0370-2693(00)00015-0
2000RO36 Phys.Rev. C62, 054308 (2000) R.R.Rodriguez-Guzman, J.L.Egido, L.M.Robledo Properties of the Predicted Superdeformed Bands in 32S NUCLEAR STRUCTURE 32S; calculated superdeformed band excitation energy, transitions B(E2), moment of inertia, related features. Self-consistent cranking approach.
doi: 10.1103/PhysRevC.62.054308
2000RO37 Phys.Rev. C62, 054319 (2000) R.R.Rodriguez-Guzman, J.L.Egido, L.M.Robledo Description of Quadrupole Collectivity in N ≈ 20 Nuclei with Techniques Beyond the Mean Field NUCLEAR STRUCTURE 30,32,34Mg; calculated collective levels, J, π, B(E2), quadrupole moments. Angular momentum projected generator coordinate method.
doi: 10.1103/PhysRevC.62.054319
1996DI02 Z.Phys. A354, 409 (1996) A.Diaz-Torres, F.Guzman-Martinez, R.Rodriguez-Guzman Level Density and Collective Enhancement Factor of a Compound Nucleus in Non-Adiabatic Approach NUCLEAR STRUCTURE 240Pu; calculated adiabatical, dynamical coefficient vs temperature, interfragment distance. Nonadiabatic approach.
doi: 10.1007/s002180050063
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