NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = A.P.Severyukhin Found 52 matches. 2024BA02 Phys.Rev. C 109, 014325 (2024) A.Bahini, P.von Neumann-Cosel, J.Carter, I.T.Usman, N.N.Arsenyev, A.P.Severyukhin, E.Litvinova, R.W.Fearick, R.Neveling, P.Adsley, N.Botha, J.W.Brummer, L.M.Donaldson, S.Jongile, T.C.Khumalo, M.B.Latif, K.C.W.Li, P.Z.Mabika, P.T.Molema, C.S.Moodley, S.D.Olorunfunmi, P.Papka, L.Pellegri, B.Rebeiro, E.Sideras-Haddad, F.D.Smit, S.Triambak, M.Wiedeking, J.J.van Zyl Fine structure of the isoscalar giant monopole resonance in 58Ni, 90Zr, 120Sn, and 208Pb
doi: 10.1103/PhysRevC.109.014325
2023AR14 Phys.Atomic Nuclei 86, 465 (2023) Isoscalar Giant Monopole Resonance in Ca Isotopes NUCLEAR STRUCTURE 40,42,44,46,48Ca; analyzed available data; deduced the gross structure of the isoscalar giant monopole resonance (ISGMR) is caused by the complex configurations.
doi: 10.1134/S106377882304004X
2022AR11 Phys.Atomic Nuclei 85, 912 (2022) Microscopic Description of Isoscalar Giant Monopole Resonance in 48Ca NUCLEAR STRUCTURE 48Ca; analyzed available data; deduced the properties of the isoscalar giant monopole resonance (ISGMR) in the framework of a microscopic model based on Skyrme-type interactions.
doi: 10.1134/S1063778823010040
2022SE13 Phys.Atomic Nuclei 85, 919 (2022) On the Double γ-Decay Width of the Quadrupole State: The Case of 132Sn NUCLEAR STRUCTURE 132Sn; analyzed available data; deduced the mixing of the simple and complex configurations of the giant dipole resonance for describing the double γ-decay width of the 2+1 state, branching ratio of the competitive γγ-decay relative to its single γ-decay using the model based on the Skyrme energy density functional, the large configuration space.
doi: 10.1134/S1063778823010519
2022SO21 Phys.Part. and Nucl.Lett. 19, 473 (2022) N.E.Solonovich, N.N.Arsenyev, A.P.Severyukhin The Dipole Polarizability of the Doubly Magic Nuclei NUCLEAR STRUCTURE 48Ca, 68Ni, 208Pb; calculated product of dipole polarizability times the symmetry energy at saturation density J as a function of the neutron skin thickness, correlations between the electric dipole polarizability, the symmetry energy, and neutron skin thickness using the random phase approximation model based on the Skyrme nuclear energy density functional. Comparison with experimental data.
doi: 10.1134/S1547477122050387
2021AR14 Universe 7, 145 (2021) Origin of Low- and High-Energy Monopole Collectivity in 132Sn
doi: 10.3390/universe7050145
2021SE16 Phys.Rev. C 104, 024310 (2021) A.P.Severyukhin, N.N.Arsenyev, N.Pietralla First calculation of the γγ-decay width of a nuclear 2+1 state: The case of 48Ca NUCLEAR REACTIONS 48Ca(p, p'γ), E=10-25 MeV; calculated phonon-phonon coupling effect on the B(E1) strength distribution of GDR, γγ-decay width of the first 2+ state. 48Ca; deduced branching ratio I(γγ decay)/Iγ decay from the first 2+ state. Microscopic model based on the Skyrme energy density functional, with coupling of one-, two-, and three-phonon terms in the wave functions of excited states.
doi: 10.1103/PhysRevC.104.024310
2021SE22 Phys.Rev. C 104, 044327 (2021) A.P.Severyukhin, S.Aberg, N.N.Arsenyev, R.G.Nazmitdinov Hybrid model for the damped transient response of giant dipole resonances NUCLEAR STRUCTURE 206Hg, 206Pb, 210Po; calculated dipole-strength distributions built on the one-phonon strength distribution folded with the energy-dependent Lorentzian, the microscopic phonon-phonon coupling (PPC) approach, and the random coupling matrix elements between the one- and two-phonon configurations (doorway model), centroid energies and the spreading widths Γ of giant-dipole resonance (GDR) in 9.5-18.5 MeV range using quasiparticle random phase approximation (QRPA) based on Skyrme mean field interactions, PPC, and random distribution of coupling matrix elements, and a hybrid model, cumulative level densities of one-phonon and two-phonon states using QRPA and modified Fermi gas model with uniformly spaced states, energy-dependent energy shift for 210Po. 206Hg, 210Po; empirical systematics of the centroid energies and widths of dipole-strength distributions.
doi: 10.1103/PhysRevC.104.044327
2021TE02 Eur.Phys.J. A 57, 59 (2021) D.A.Testov, A.P.Severyukhin, B.Roussiere, N.Arsenyev, F.Ibrahim, M.Lebois, I.Matea, Yu.Penionzhkevich, V.Smirnov, E.Sokol, I.Stefan, D.Susuki, D.Verney, J.Wilson Study of 123Ag β-decay at ALTO RADIOACTIVITY 123Ag(β-), (β-n) [from U(γ, F), E<50 MeV]; measured decay products, Eγ, Iγ, En, In; deduced γ-ray energies and intensities, T1/2, β-delayed neutron emission branching.
doi: 10.1140/epja/s10050-021-00368-0
2020SE05 Phys.Rev. C 101, 054309 (2020) A.P.Severyukhin, N.N.Arsenyev, I.N.Borzov, E.O.Sushenok, D.Testov, D.Verney Two-phonon structure of low-energy 1+ excitations of 130In RADIOACTIVITY 130Cd(β-); calculated β-transition rates to 1+ states in 130In using quasiparticle random-phase approximation (QRPA). Comparison with experimental data. NUCLEAR STRUCTURE 130In; calculated level energies and dominant components of phonon structures of 1+ states, logft values from the decay of 130Cd, B(E1), B(E2), partial widths. 126,128,130In, 126,128,130Cd; calculated B(E2) for low-lying E2 transitions; deduced correlation between the low-lying E2 transition strengths of the parent and daughter isobaric companions. Quasiparticle random-phase approximation (QRPA) including coupling between one- and two phonon terms.
doi: 10.1103/PhysRevC.101.054309
2020SE15 Phys.Atomic Nuclei 83, 171 (2020) A.P.Severyukhin, N.N.Arsenyev, I.N.Borzov, R.G.Nazmitdinov, S.Aberg On Statistical Properties of the Gamow-Teller Strength Distribution in 60Ca
doi: 10.1134/S106377882002026X
2019AR11 Physics of Part.and Nuclei 50, 528 (2019) N.N.Arsenyev, A.P.Severyukhin, V.V.Voronov, N.Van Giai Low-Energy E1 Strength Distributions of 68Ni
doi: 10.1134/s1063779619050034
2019SU13 Phys.Atomic Nuclei 82, 120 (2019) E.O.Sushenok, A.P.Severyukhin, N.N.Arsenyev, I.N.Borzov Effect of Dynamical Pairing of the Beta-Decay Properties of Neutron-Rich Nuclei
doi: 10.1134/S1063778819010174
2019SU27 Acta Phys.Pol. B50, 261 (2019) E.O.Sushenok, A.P.Severyukhin, N.N.Arsenyev, I.N.Borzov Effects of Tensor Interaction and Neutron-Proton Pairing on Beta-decay Characteristics of 130, 132Cd RADIOACTIVITY 130,132Cd(β-), (β-n), (β-2n); calculated β-decay half-lives, β-delayed neutron emission probabilities P1n and P2n, impact of neutron-proton pairing on β-decay half-life and emission probabilities. Skyrme mean-field calculations with the study of effects of phonon-phonon coupling. Comparison with available experimental data.
doi: 10.5506/aphyspolb.50.261
2018SE05 Eur.Phys.J. A 54, 4 (2018) A.P.Severyukhin, N.N.Arsenyev, N.Pietralla, V.Werner Proton-neutron structure of first and second quadrupole excitations of 90Sr NUCLEAR STRUCTURE 88,90Sr, 90,92Zr; calculated 2+1, 2+2 quadrupole excitation energy, structure, B(E2), B(M1), g-factors using Skyrme interaction together with density-dependent pairing interaction. Compared with available and extrapolated data.
doi: 10.1140/epja/i2018-12451-4
2018SE11 Phys.Rev. C 97, 059802 (2018) A.P.Severyukhin, S.Aberg, N.N.Arsenyev, R.G.Nazmitdinov Reply to "Comment on 'Spreading widths of giant resonances in spherical nuclei: Damped transient response'" NUCLEAR STRUCTURE 208Pb; calculated distribution of coupling matrix elements between the one- and two-phonon configurations, and B(E1) and B(E2) strength distributions for the isovector giant dipole resonance (IVGDR) and isoscalar giant quadrupole resonance (ISGQR) using random matrix distribution of phonon-phonon coupling in random-phase approximation.
doi: 10.1103/PhysRevC.97.059802
2018SE18 Phys.Rev. C 98, 044319 (2018) A.P.Severyukhin, S.AAberg, N.N.Arsenyev, R.G.Nazmitdinov Damped transient response of the giant dipole resonance in the lead region NUCLEAR STRUCTURE 206Hg, 204,206,208Pb, 210Po; analyzed strength distributions of 1- states in the region of isovector giant-dipole resonance (IVGDR) and energy interval of 9.5-18.5 MeV using quasi-random phase approximation (QRPA) based on Skyrme mean field and SLy4 interaction, with the volume pairing interaction treated in the BCS approximation. Comparison of centroid energies and spreading widths from microscopic coupling of one- and two-phonon states with those from random matrix approach to this coupling, and with experimental data.
doi: 10.1103/PhysRevC.98.044319
2018SU05 Phys.Atomic Nuclei 81, 24 (2018) E.O.Sushenok, A.P.Severyukhin, N.N.Arsenyev, I.N.Borzov Impact of Tensor Interaction on Beta-Delayed Neutron Emission from Neutron-Rich Nickel Isotopes RADIOACTIVITY 74,75,76,77,78,79,80Ni, 74,75,76,77,78,79,80Cu(β-); calculated Q, B(E2), β-decay rates, T1/2. Compared with data.
doi: 10.1134/S1063778818010192
2017AR05 Acta Phys.Pol. B48, 553 (2017) N.N.Arsenyev, A.P.Severyukhin, V.V.Voronov, N.Van Giai Effects of Phonon-Phonon Coupling on Properties of Pygmy Resonance in 40-48Ca NUCLEAR STRUCTURE 40,42,44,46,48Ca; calculated low-energy electric pygmy dipole resonance B(E1) strength distribution using RPA and PPC (Phonon-Phonon Coupling) with Skyrme SLy5 interaction; deduced fragmentation of B(E1) to lower energy using comparison with available data.
doi: 10.5506/APhysPolB.48.553
2017AR06 Phys.Rev. C 95, 054312 (2017) N.N.Arsenyev, A.P.Severyukhin, V.V.Voronov, Nguyen Van Giai Influence of complex configurations on the properties of the pygmy dipole resonance in neutron-rich Ca isotopes NUCLEAR STRUCTURE 40,42,44,46,48,50,52,54,56,58,60Ca; calculated binding energies, neutron skin thicknesses, electric dipole polarizability, S(n), S(2n), summed dipole strength below 10 MeV, energies and B(E2) for the first 2+ states, energies and B(Eλ) values for first 2+, 3-, 4+ and 5- states in 46,48,50Ca, low-energy E1 strength distributions of 40Ca, 48Ca and 50Ca, photoabsorption cross section and electric dipole polarizability for 48Ca, transition proton and neutron densities to selected 1- states of 50Ca and 56Ca. Effects of phonon-phonon coupling (PPC) on the low-energy electric dipole response investigated by quasiparticle random phase approximation based on the Skyrme interaction SLy5. Comparison with experimental data.
doi: 10.1103/PhysRevC.95.054312
2017SE06 Phys.Rev. C 95, 034314 (2017) A.P.Severyukhin, N.N.Arsenyev, I.N.Borzov, E.O.Sushenok Multi-neutron emission of Cd isotopes RADIOACTIVITY 126Ru, 128Pd, 132Sn, 134Te, 126,128,130,132,134Cd(β-), (β-n), (β-2n); calculated Q(β-), S(n), S(2n) and compared with available experimental data. 126,128,130,132,134Cd(β-), (β-n), (β-2n); calculated Gamow-Teller (GT) strength distributions as functions of excitation energy of daughter nuclei, β-decay half-lives using QRPA, phonon-phonon coupling effects on β-decay half-life, and β-delayed neutron emission probabilities P1n and P2n. Skyrme mean-field calculations with the study of effects of phonon-phonon coupling. Comparison with available experimental data.
doi: 10.1103/PhysRevC.95.034314
2017SE10 Phys.Rev. C 95, 061305 (2017) A.P.Severyukhin, S.Aberg, N.N.Arsenyev, R.G.Nazmitdinov Spreading widths of giant resonances in spherical nuclei: Damped transient response NUCLEAR STRUCTURE 132Sn, 208Pb, 310126; analyzed centroid energies, spreading widths Γ for isoscalar giant monopole resonances (ISGMR), isovector giant dipole resonances (IVGDR), and isoscalar giant quadrupole resonances (ISGQR), B(E1) strength distributions using RPA based on the Skyrme mean field. Comparison of spreading widths obtained by means of the microscopic coupling of one- and two-phonon states with those obtained by means of the random matrix approach to this coupling. Comparison with experimental data.
doi: 10.1103/PhysRevC.95.061305
2017SE23 Physics of Part.and Nuclei 48, 920 (2017) Strength fragmentation of Gamow-Teller transitions and delayed neutron emission of atomic nuclei RADIOACTIVITY 52Ca(β-); calculated β-decay rates using microscopic model; deduced redistribution of β-decay GT strength due to 2p-2h fragmentation, n-delayed emission probability of the β-decay.
doi: 10.1134/S106377961706051X
2017SU09 Acta Phys.Pol. B48, 533 (2017) The Blocking Effect on the β-decay Properties of the Neutron-rich Ni Isotopes NUCLEAR STRUCTURE 72,74,76,78,80Ni; calculated β-decay Q-value, T1/2 using energy-density functional.
doi: 10.5506/APhysPolB.48.533
2016SE18 Phys.Atomic Nuclei 79, 469 (2016) A.P.Severyukhin, N.N.Arsenyev, N.Pietralla, V.Werner Structure of 2+1, 2 states in 132, 134, 136Te NUCLEAR STRUCTURE 132,134,136Te; calculated 2+1 state energy, B(E2), B(M1), g factors using QRPA and taking into account phono-phonon coupling. Compared with data.
doi: 10.1134/S1063778816040190
2015AR06 Acta Phys.Pol. B46, 517 (2015) N.N.Arsenyev, A.P.Severyukhin, V.V.Voronov, N.V.Giai Effects of Phonon-Phonon Coupling on Properties of Pygmy Resonance in 132Sn NUCLEAR STRUCTURE 132Sn; calculated B(E1) strength distribution, dipole excitations. Skyrme mean-field interaction SLy4.
doi: 10.5506/APhysPolB.46.517
2015ET01 Phys.Rev. C 91, 064317 (2015) A.Etile, D.Verney, N.N.Arsenyev, J.Bettane, I.N.Borzov, M.C.Mhamed, P.V.Cuong, C.Delafosse, F.Didierjean, C.Gaulard, Nguyen Van Giai, A.Goasduff, F.Ibrahim, K.Kolos, C.Lau, M.Niikura, S.Roccia, A.P.Severyukhin, D.Testov, S.Tusseau-Nenez, V.V.Voronov Low-lying intruder and tensor-driven structures in 82As revealed by β decay at a new movable-tape-based experimental setup RADIOACTIVITY 82Ge(β-)[from 238U(e, F), E=50 MeV followed by online mass separation using PARRNe mass separator at ALTO ISOL facility of IPN-Orsay]; measured Eγ, Iγ, βγ-, γγ-coin, half-life of 82Ge isotope using BEDO detector assembly. 82As; deduced levels, J, three potential 1+ states, π, β feedings, logft. Comparison with experimental and theoretical values of two 1+ states in 82As and 80Ga. Comparison with empirical core-particle coupling model and fully microscopic treatment within Skyrme-QRPA (quasiparticle random-phase approximation) approach. Discussed Gamow-Teller fragmentation due to tensor correlations and couplings to 2p-2h excitations. 82Ga(β-); measured half-life from growth-decay curve for 1348-keV γ ray, and compared with earlier experimental value. 81,82,82mAs, 81,81mGe, 82Ga, 130,132Sb, 132Sn(β-), 82Ga(β-n); observed γ rays from fission fragments present in the sample. NUCLEAR STRUCTURE 81Ga, 83As, 85Br, 87Rb; calculated proton QP energies, occupation probabilities. 80Ga, 82As, 84Br, 86Rb; calculated unperturbed energies of neutron-proton 2-qp states. 81Ge, 82,83As, 85Kr, 86,87Rb; calculated levels, J, π. 80Ga, 82As; calculated energies and structures of the QRPA dipole (1+) neutron-proton 2-qp states. Comparison with experimental data. Empirical core-particle coupling model and fully microscopic treatment within Skyrme-QRPA approach.
doi: 10.1103/PhysRevC.91.064317
2015SE04 Phys.Rev. C 91, 034322 (2015) A.P.Severyukhin, J.Margueron, I.N.Borzov, N.Van Giai Sensitivity of β-decay rates to the radial dependence of the nucleon effective mass NUCLEAR STRUCTURE 208Pb; calculated proton and neutron effective masses as function of radial distance, surface-peaked effective mass (SPEM) effects on giant quadrupole resonance strength (GQR), Gamow-Teller resonance (GTR), and B(E2) for first 2+ state. Skyrme energy density functional (EDFs) with several parameterizations. Comparison with experimental data for B(E2). RADIOACTIVITY 78Ni, 132Sn(β-), 100Sn(β+); calculated energy differences between the dominant single-particle states in 100Sn and 132Sn, surface-peaked effective mass (SPEM) effects on T1/2 and Gamow-Teller strength, Skyrme energy density functional (EDFs) with several parameterizations. Comparison with experimental data for decay rates.
doi: 10.1103/PhysRevC.91.034322
2015SE11 Phys.Atomic Nuclei 78, 680 (2015); Yad.Fiz. 78, 725 (2015) Effect of complex configurations on the description of properties of 132Sn beta decay RADIOACTIVITY 132Sn(β-); calculated Gamow-Teller transitions; deduced increase in the strength of the neutron-proton tensor interaction led to an increase in the energy of Gamow-Teller transitions and decrease in the 132Sn T1/2 with respect to β-decay. The coupling of one- and two-phonon components of the wave functions was taken into account on the basis of Skyrme interactions featuring various contributions of the tensor component.
doi: 10.1134/S1063778815050130
2015SU10 Phys.Part. and Nucl.Lett. 24, 494 (2015) Tensor correlations and the β-decay half-life of 132Sn RADIOACTIVITY 132Sn(β-); calculated log ft, T1/2. Random phase approximation, comparison with available data.
doi: 10.1134/S1547477115040214
2014SE14 Phys.Rev. C 90, 011306 (2014) A.P.Severyukhin, N.N.Arsenyev, N.Pietralla, V.Werner Impact of variational space on M1 transitions between first and second quadrupole excitations in 132, 134, 136Te NUCLEAR STRUCTURE 132,134,136Te; calculated energies, B(M1), B(E2), and dominant components of phonon structures of the low-lying quadrupole 2+ states, B(M1) of transitions from second 2+ to first 2+ using 2-state model, QRPA, and 2-phonon, proton single-particle energies. Proton-neutron mixed-symmetry character and mixed-symmetry (MS) 2+ states. Quasiparticle random phase approximation calculations in very large two-quasiparticle configurational spaces with Skyrme mean-field interactions. Comparison with experimental data.
doi: 10.1103/PhysRevC.90.011306
2014SE19 Phys.Rev. C 90, 044320 (2014) A.P.Severyukhin, V.V.Voronov, I.N.Borzov, N.N.Arsenyev, Nguyen Van Giai Influence of 2p-2h configurations on β-decay rates RADIOACTIVITY 76Fe, 70,72,74,76,78,80Ni, 80Zn, 82Ge, 84Se(β-); calculated half-lives, GamowTeller (G-T) strength distributions. Calculations based on phonon-phonon coupling in a microscopic model based on Skyrme-type interaction. Comparison with experimental results. NUCLEAR STRUCTURE 76Fe, 70,72,74,76,78,80Ni, 80Zn, 82Ge, 84Se, 86Kr; calculated energies and B(E2) of first 2+ states based on QRPA and finite rank separable approximation (FRSA), with and without tensor interaction. Comparison with experimental results.
doi: 10.1103/PhysRevC.90.044320
2013AR01 Bull.Rus.Acad.Sci.Phys. 77, 462 (2013); Izv.Akad.Nauk RAS, Ser.Fiz 77, 513 (2013) N.N.Arsenyev, A.P.Severyukhin, V.V.Voronov Describing of the Properties of Quadrupole States in a 94Mo Nucleus with Skyrme Interaction NUCLEAR STRUCTURE 94Mo; calculated energy levels, J, π, B(E2), B(M1). Random phase approximation with separable Skyrme forces.
doi: 10.3103/S1062873813040035
2013SE21 Prog.Theor.Exp.Phys. 2013, 103D03 (2013) Tensor correlation effects on Gamow-Teller resonances in 120Sn and N = 80, 82 isotones NUCLEAR STRUCTURE 128,130Cd, 120,130,132Sn, 132,134Te; calculated Gamow-Teller strength functions, resonances. QRPA calculations with a separable-type tensor interaction in the finite rank separable approximation.
doi: 10.1093/ptep/ptt085
2012SE05 Phys.Rev. C 86, 024311 (2012) A.P.Severyukhin, N.N.Arsenyev, N.Pietralla Proton-neutron symmetry in 92Zr, 94Mo with Skyrme interactions in a separable approximation NUCLEAR STRUCTURE 90,92Zr, 92,94Mo; calculated neutron and proton single-particle energies, lowest 2-quasiparticle states, levels, J, π, B(E2), B(M1), structures of QRPA quadrupole states, phonon amplitudes. Finite-rank separable approach for QRPA calculations with SGII Skyrme interaction. Comparison with experimental data.
doi: 10.1103/PhysRevC.86.024311
2012SE08 Prog.Theor.Phys.(Kyoto) 128, 489 (2012) A.P.Severyukhin, V.V.Voronov, Nguyen Van Giai Charge-Exchange Excitations with Skyrme Interactions in a Separable Approximation NUCLEAR STRUCTURE 90Zr, 132Sn, 126,128,130Cd; calculated Gamow-Teller and spin-dipole resonances, spin-dipole and Gamow-Teller strength distributions. Comparison with available data.
doi: 10.1143/PTP.128.489
2010AR04 Bull.Rus.Acad.Sci.Phys. 74, 854 (2010); Izv.Akad.Nauk RAS, Ser.Fiz 74, 895(2010) N.N.Arsenyev, A.P.Severyukhin, V.V.Voronov Properties of giant dipole resonance and the elimination of center-of-mass motion NUCLEAR STRUCTURE 132Sn; calculated B(E1), Giant Dipole Resonance centroid energy.
doi: 10.3103/S1062873810060250
2008SE01 Phys.Rev. C 77, 024322 (2008) A.P.Severyukhin, V.V.Voronov, N.Van Giai Effects of the particle-particle channel on properties of low-lying vibrational states NUCLEAR STRUCTURE 128Pd, 130Cd, 124,126,128,130,132,134Sn, 128,130,132,134,136Te, 136Xe; calculated energy of first 2+ state, B(E2). 128Pd, 130Cd, 132Sn, 134Te, 136Xe; calculated N/Z ratio.
doi: 10.1103/PhysRevC.77.024322
2007SE03 Phys.Rev. C 75, 064303 (2007) A.P.Severyukhin, M.Bender, H.Flocard, P.-H.Heenen Large-amplitude Qn-Qp collectivity in the neutron-rich oxygen isotope 20O NUCLEAR STRUCTURE 20O; calculated single particle energies and deformation parameters using HFB model and SLy4 parameterization of Skyrme interaction.
doi: 10.1103/PhysRevC.75.064303
2007SE10 Phys.Atomic Nuclei 70, 1435 (2007) A.P.Severyukhin, M.Bender, H.Flocard, P.-H.Heenen On the Qn-Qp deformation energy surfaces of neutron-rich oxygen isotopes
doi: 10.1134/S1063778807080182
2006SE11 Phys.Rev. C 74, 024311 (2006) A.P.Severyukhin, M.Bender, P.-H.Heenen Beyond mean field study of excited states: Analysis within the Lipkin model
doi: 10.1103/PhysRevC.74.024311
2005SE27 Rom.J.Phys. 50, 391 (2005) A.P.Severyukhin, V.V.Voronov, N.Van Giai, Ch.Stoyanov Nuclear structure calculations with a separable approximation for Skyrme interactions NUCLEAR STRUCTURE 36,38,40Ar, 112,114,124,126,128,130,132,134Sn, 206,208Pb; calculated 2+ level energies, transition probabilities. 208Pb; calculated octupole strength distribution. Skyrme interactions, finite rank separable approximation.
2004SE10 Yad.Fiz. 67, 1783 (2004); Phys.Atomic Nuclei 67, 1756 (2004) A.P.Severyukhin, V.V.Voronov, Ch.Stoyanov, N.Van Giai Low-Lying States and Separabelized Skyrme Interactions NUCLEAR STRUCTURE 124Sn; calculated level energies, B(E2), B(E3). Finite-rank separable approximation, quasiparticle RPA.
doi: 10.1134/1.1806919
2004SE15 Eur.Phys.J. A 22, 397 (2004) A.P.Severyukhin, V.V.Voronov, N.Van Giai Effects of phonon-phonon coupling on low-lying states in neutron-rich Sn isotopes NUCLEAR STRUCTURE 124,126,128,130,132,134Sn; calculated level energies, excitation B(E2), B(E3), effects of phonon-phonon coupling. Comparisons with data.
doi: 10.1140/epja/i2004-10048-2
2003SE04 Yad.Fiz. 66, 1480 (2003); Phys.Atomic Nuclei 66, 1434 (2003) A.P.Severyukhin, V.V.Voronov, Ch.Stoyanov, N.Van Giai Separable Skyrme Interactions and Quasiparticle RPA NUCLEAR STRUCTURE 32,34,36,38S; calculated transition energies, B(E2), B(E3). 36Ar, 112Sn, 208Pb; calculated GDR strength distributions. 208Pb; calculated octupole strength distribution. Quasiparticle RPA with Skyrme interactions, comparison with data.
doi: 10.1134/1.1601746
2003SE10 Nucl.Phys. A722, 123c (2003) A.P.Severyukhin, V.V.Voronov, Ch.Stoyanov, N.Van Giai Nuclear structure calculations with a separable approximation for Skyrme interactions NUCLEAR STRUCTURE 112Sn; calculated levels, J, π, B(E2), B(E3), two-phonon contributions. Quasiparticle RPA, comparison with data.
doi: 10.1016/S0375-9474(03)01347-2
2003SE17 Bull.Rus.Acad.Sci.Phys. 67, 95 (2003) A.P.Severyukhin, Ch.Stoyanov, V.V.Voronov, N.Van Giai Quasiparticle random phase approximation and structure of low-lying states in nuclei of Ar isotopes NUCLEAR STRUCTURE 36,38,40Ar; calculated level energies, excitation B(E2), B(E3). Quasiparticle RPA, comparison with data.
2002SE07 Phys.Rev. C66, 034304 (2002) A.P.Severyukhin, Ch.Stoyanov, V.V.Voronov, V.G.Nguyen Quasiparticle Random Phase Approximation with Finite Rank Approximation for Skyrme Interactions NUCLEAR STRUCTURE 36Ar; calculated B(E1), B(E2), B(E3) strength distributions. 18,20O, 36,38,40Ar, 112,114Sn, 206,208Pb; calculated B(E2), B(E3) for transitions to first 2+, 3- states. Quasiparticle RPA, comparison with data.
doi: 10.1103/PhysRevC.66.034304
2000SE21 Bull.Rus.Acad.Sci.Phys. 64, 1782 (2000) A.P.Severyukhin, V.V.Voronov, D.Karadzhov Effect of the Particle-Particle Channel on Ground-State Correlations of Spherical Nuclei
2000VO17 Fiz.Elem.Chastits At.Yadra 31, 905 (2000); Phys.Part.Nucl. 31, 452 (2000) V.V.Voronov, D.Karadjov, F.Catara, A.P.Severyukhin Ground State Correlations Beyond the Random Phase Approximation and Collective Excitations NUCLEAR STRUCTURE 64Zn; calculated transition densities. 68Zn; calculated ground state quasiparticle distribution, transition densities, B(E2) for vibrational states. Fermionic approach, extended RPA.
1998KA60 Nucl.Phys. A643, 259 (1998) D.Karadjov, V.V.Voronov, F.Catara, M.Grinberg, A.P.Severyukhin Effects of the Ground State Correlations on the Structure of Vibrational States NUCLEAR STRUCTURE 68Zn; calculated vibrational states energies, up-transition B(λ), transition charge density; deduced ground state correlations effects. Extended RPA.
doi: 10.1016/S0375-9474(98)00563-6
1997SE19 Bull.Rus.Acad.Sci.Phys. 61, 572 (1997) Three-Phonon Components of Wave Function for an Even-Even Deformed Nucleus NUCLEAR STRUCTURE 158Gd, 168Er; calculated two-, three-phonon states energies.
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