NSR Query Results
Output year order : Descending NSR database version of April 29, 2024. Search: Author = P.Buganu Found 21 matches. 2024BU04 Nuovo Cim. C 47, 25 (2024) R.Budaca, P.Buganu, A.I.Budaca Axial quadrupole and octupole dynamics in heavy even-even nuclei NUCLEAR STRUCTURE 224,226,228Ra, 224,226,228Th, 232Th, 236U; calculated B(E2) using a quadrupole-octupole axially symmetric collective model; deduced a critical region where a shape phase transition commences between stable and dynamic octupole deformation.
doi: 10.1393/ncc/i2024-24025-0
2023BU12 Eur.Phys.J. A 59, 242 (2023), Pub Erratum Eur.Phys.J. A 59, 261 (2023) R.Budaca, P.Buganu, A.I.Budaca Quadrupole-octupole shape and dynamics of 222Ra NUCLEAR STRUCTURE 222Ra; analyzed available data; deduced parameters for a phenomenological model based on an axial quadrupole–octupole Bohr Hamiltonian, to determine its shape and the nature of the excited band.
doi: 10.1140/epja/s10050-023-01163-9
2022AI01 Nucl.Phys. A1017, 122354 (2022) S.Ait El Korchi, S.Baid, P.Buganu, M.Chabab, A.El Batoul, A.Lahbas, M.Oulne Davydov-Chaban Hamiltonian with deformation-dependent mass term for the Kratzer potential NUCLEAR STRUCTURE 128,130,132Xe, 192,194,196Pt; calculated ground-state bandhead ratios, energy spectra, B(E2). Comparison with available data.
doi: 10.1016/j.nuclphysa.2021.122354
2022BE06 Phys.Rev. C 105, 034347 (2022) A.A.Ben Mennana, R.Benjedi, R.Budaca, P.Buganu, Y.El Bassem, A.Lahbas, M.Oulne Shape and structure for the low-lying states of the 80Ge nucleus NUCLEAR STRUCTURE 80Ge; calculated levels, J, π, potential energy surfaces in the (β, γ) plane, B(E2), B(E0), bands structure, deformation parameters. Proposed prolate shape for the ground state. Covariant density-functional theory (CDFT) and the Bohr Hamiltonian with sextic potential (BHSP). Comparison to the experimental data.
doi: 10.1103/PhysRevC.105.034347
2022BU17 Phys.Rev. C 106, 014311 (2022) R.Budaca, P.Buganu, A.I.Budaca Nuclear collective motion of heavy nuclei with axial quadrupole and octupole deformation NUCLEAR STRUCTURE 224,226,228Ra, 224,226,228,230,232,234Th, 230,232,234,236,238,240U, 236,238,240Pu; calculated energy levels, J, π, B(E1), B(E2), B(E3), related features of the alternate parity bands corresponding to octupole vibration or a stable deformation. Axially symmetric quadrupole-octupole Bohr model. Comparison with experimental data.
doi: 10.1103/PhysRevC.106.014311
2022EL01 Nucl.Phys. A1017, 122354 (2022) S.A.El Korchi, S.Baid, P.Buganu, M.Chabab, A.El Batoul, A.Lahbas, M.Oulne Davydov-Chaban Hamiltonian with deformation-dependent mass term for the Kratzer potential NUCLEAR STRUCTURE 128,130,132Xe, 192,194,196Pt; calculated energies and wave functions, J, π, B(E2), ground state bandhead ratios. Comparison with available data.
doi: 10.1016/j.nuclphysa.2021.122354
2021AI02 Phys.Scr. 96, 125306 (2021) A.Ait Ben Mennana, R.Benjedi, R.Budaca, P.Buganu, Y.El Bassem, A.Lahbas, M.Oulne Mixing of the coexisting shapes in the ground states of 74Ge and 74Kr NUCLEAR STRUCTURE 74Ge, 74Kr; analyzed available data; deduced ground state shape coexistence within the phenomenological Bohr-Mottelson model, having as input the experimental collective energy states, as well with Covariant Density Functional Theory based on microscopic structural information.
doi: 10.1088/1402-4896/ac2082
2019BU16 Nucl.Phys. A990, 137 (2019) R.Budaca, P.Buganu, A.I.Budaca Geometrical model description of shape coexistence in Se isotopes
doi: 10.1016/j.nuclphysa.2019.07.006
2019BU22 Phys.Rev. C 100, 049801 (2019) Comment on "Elimination of degeneracy in the γ-unstable Bohr Hamiltonian in the presence of an extended sextic potential"
doi: 10.1103/PhysRevC.100.049801
2019BU27 J.Phys.(London) G46, 125102 (2019) R.Budaca, A.I.Budaca, P.Buganu Application of the Bohr Hamiltonian with a double-well sextic potential to collective states in Mo isotopes NUCLEAR STRUCTURE 96,98,100Mo; calculated B(Eλ), energy levels, J, π; deduced collective potentials. Comparison with available data.
doi: 10.1088/1361-6471/ab4498
2018BU01 Nucl.Phys. A970, 272 (2018) P.Buganu, M.Chabab, A.El Batoul, A.Lahbas, M.Oulne Davydov-Chaban Hamiltonian with deformation-dependent mass term for γ = 30 degrees NUCLEAR STRUCTURE 108,110,112,114,116Pd, 128,130,132Xe, 136,138Ce, 190,192,194,196,198Pt; calculated gs bandhead, β and γ bandhead ratios, angular momenta of highest levels of the gs, β and γ bands, energy spectra for the gs, γ and β bands, levels, J, π, B(E2) transitions using Z(4)-DDM-D model (Z(4) Deformation-Dependent Mass with Davydov potential) of the authors; deduced staggering effect. Compared to data.
doi: 10.1016/j.nuclphysa.2017.12.001
2018NE10 Phys.Rev. C 98, 064319 (2018) D.Negrea, P.Buganu, D.Gambacurta, N.Sandulescu Isovector and isoscalar proton-neutron pairing in N > Z nuclei NUCLEAR STRUCTURE 20,22,24,26Ne, 24,26,28,30Mg, 28,30,32,34Si, 44,46,48,50Ti, 48,50,52,54Cr, 52,54,56,58Fe, 104,106,108,110Te, 108,110,112,114Xe, 112,114,116,118Ba; calculated isovector and isoscalar nucleon pairing energies, and errors in the correlation energies using extended quartet condensation model (QCM) applied for a set of nucleons moving in a fixed mean field generated by Skyrme-HF calculations.
doi: 10.1103/PhysRevC.98.064319
2015BU03 Phys.Rev. C 91, 014306 (2015) Analytical solution for the Davydov-Chaban Hamiltonian with a sextic potential for γ = 30 degrees NUCLEAR STRUCTURE 128,130,132Xe, 192,194,196Pt; calculated levels, J, π, B(E2) for ground-, β- and γ-band members using Davydov-Chaban Hamiltonian, with Z(4)-sextic oscillator potential for the variable β and γ frozen to 30°. Comparison with experimental data.
doi: 10.1103/PhysRevC.91.014306
2015BU05 Rom.J.Phys. 60, 161 (2015) Energy Spectra, E2 Transition Probabilities and Shape Deformations for the Even-Even Isotopes 180-196Pt NUCLEAR STRUCTURE 180,182,184,186,188,190,192,194,196Pt; calculated energy levels, J, π, bands, B(E2), contour plots of density probability. Davidson and spheroidal (DSA), Davidson and Mathieu approaches (DMA), comparison with available data.
2015BU11 J.Phys.(London) G42, 105106 (2015) Sextic potential for γ-rigid prolate nuclei NUCLEAR STRUCTURE 98,100,102,104,106,108Ru, 100,102Mo, 116,118,120,122,124,126,128,130Xe, 132,134Ce, 146,148,150Nd, 150,152Sm, 152,154Gd, 154,156Dy, 172Os, 180,182,184,186,188,190,192,194,196Pt, 190Hg, 222Ra; calculated rms radii, B(E2), parameters. The equation of the Bohr-Mottelson Hamiltonian, comparison with experimental data.
doi: 10.1088/0954-3899/42/10/105106
2013RA02 J.Phys.(London) G40, 025108 (2013) Application of the sextic oscillator with a centrifugal barrier and the spheroidal equation for some X(5) candidate nuclei NUCLEAR STRUCTURE 176,178,180,188,190Os, 150Nd, 156Dy, 166,168Hf, 170W; calculated transition energies and probabilities, B(E2). Sextic and spheroidal approach formalism, comparison with available data.
doi: 10.1088/0954-3899/40/2/025108
2013RA33 Phys.Rev. C 88, 064328 (2013) Description of the isotope chain 180-196Pt within several solvable approaches NUCLEAR STRUCTURE 180,182,184,186,188,190,192,194,196Pt; calculated levels, J, π of ground, β and γ bands, B(E2), γ branching ratios, probability density contours in (β, γ) plane; deduced evidence of shape evolution and possible shape coexistence. Solutions of differential equations approximating generalized Bohr-Mottelson Hamiltonian. Sextic and spheroidal (SSA), sextic and Mathieu (SMA), the infinite square well and spheroidal (ISWSA), and infinite square well and Mathieu (ISWMA) approaches. Comparison with X(5) and Z(5) models, and with experimental data.
doi: 10.1103/PhysRevC.88.064328
2012BU01 J.Phys.(London) G39, 025103 (2012) P.Buganu, A.A.Raduta, A.Faessler New features of the triaxial nuclei described with a coherent state model NUCLEAR STRUCTURE 180Hf, 182W; calculated level energies, J, π, B(E2) values. SMA and CSM formalisms, comparison with experimental data.
doi: 10.1088/0954-3899/39/2/025103
2011RA05 Phys.Rev. C 83, 034313 (2011) Toward a new description of triaxial nuclei NUCLEAR STRUCTURE 188,190,192Os, 228,230Th; calculated levels, J, π, B(E2), level staggering in ground, β and γ bands using liquid drop Hamiltonian. Transition from γ unstable to triaxial shape. Signature for triaxiality. Sextic and Mathieu approach (SMA), and Coherent state model (CSM). Comparison with experimental data.
doi: 10.1103/PhysRevC.83.034313
2010RA19 Rom.J.Phys. 55, 1050 (2010) A.A.Raduta, P.Buganu, D.Bucurescu, I.I.Ursu A Phenomenological Interpretation of 4+ and 6+ State Multiplets in Even-Even Nuclei NUCLEAR STRUCTURE 152,154Gd, 168Er, 180,184W, 190Os; calculated semiclassical level energies. Comparison with experimental data.
2009RA03 Nucl.Phys. A819, 46 (2009) A.A.Raduta, A.C.Gheorghe, P.Buganu, A.Faessler A solvable model which has X(5) as a limiting symmetry and removes some inherent drawbacks NUCLEAR STRUCTURE 150Nd, 154Gd, 192Os calculated levels, J, π, B(E2). Spheroidal function model. Comparison with data.
doi: 10.1016/j.nuclphysa.2009.01.006
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