NSR Query Results
Output year order : Descending NSR database version of May 2, 2024. Search: Author = C.M.Raduta Found 26 matches. 2024RA13 J.Phys.(London) G51, 045107 (2024) A.A.Raduta, C.M.Raduta, A.H.Raduta Toward a new approach for the pygmy dipole resonance in even–even nuclei. Application to isotopes 144, 148, 150, 152, 154Sm NUCLEAR STRUCTURE 144,148,150,152,154Sm; calculated wavefunctions, B(E1), the photoabsorption σ, integrated moments of the cross section and energy weighted sum rule (EWSR) using a many-body Hamiltonian consisting of a spherical shell model mean-field term, a pairing interaction for alike nucleons and a dipole–dipole interaction, with the dipole operator involving a cubic term in the radial coordinate.
doi: 10.1088/1361-6471/ad27e4
2022RA01 J.Phys.(London) G49, 25105 (2022) C.M.Raduta, A.A.Raduta, R.Poenaru, A.H.Raduta Simultaneous description of wobbling and chiral properties in even-odd triaxial nuclei
doi: 10.1088/1361-6471/ac3c34
2022RA24 Phys.Rev. C 106, 044301 (2022) A.A.Raduta, C.M.Raduta, R.Poenaru Double-β transition 0+ → 2+ within a fully renormalized proton-neutron quasiparticle random-phase approximation with the gauge symmetry restored RADIOACTIVITY 76Ge, 82Se, 96Zr, 100Mo, 116Cd, 128Te, 130Te, 150Nd(2β-); calculated GT amplitudes, T1/2 for ground to 2+ and ground to ground transition. 76As, 82Br, 96Nb, 100Tc, 116In, 128,130I, 150Pm(β-), (β+)(EC); calculated logft. Calculation for the two consecutive virtual β transitions in the intermediate nuclei for the ββ-decay. 76Ge, 82Se, 96Zr, 100Mo, 116Cd, 128Te, 130Te, 150Nd(β-), (β+); calculated Gamow-Teller amplitude, B(GT). Calculations using fully renormalized proton-neutron quasiparticle random-phase approximation (pnQRPA)for the Gamow-Teller (GT) dipole transition operator and a renormalized QRPA for charge conserving quadrupole operators. Comparison to experimental data. NUCLEAR STRUCTURE 76Se, 82Kr, 96Mo, 100Ru, 116Sn, 128Xe, 130Xe, 150Sm; calculated deformation parameters, B(E2) and T1/2 of the 2+ state. Comparison to experimental data.
doi: 10.1103/PhysRevC.106.044301
2021RA01 J.Phys.(London) G48, 015106 (2021) A.A.Raduta, C.M.Raduta, R.Poenaru A new boson approach for the wobbling motion in even-odd nuclei NUCLEAR STRUCTURE 135Pr; calculated level energies, J, π, wobbling frequencies, B(Eλ) using classical analysis.
doi: 10.1088/1361-6471/abc533
2020RA01 Phys.Rev. C 101, 014302 (2020) A.A.Raduta, R.Poenaru, C.M.Raduta New approach for the wobbling motion in the even-odd isotopes 161, 163, 165, 167Lu NUCLEAR STRUCTURE 161,163,165,167Lu; calculated levels, J, π, aligned angular momenta, wobbling energies, moments of inertia, quadrupole moment parameters, B(E2), B(M1), transition quadrupole moments, multiple mixing ratios of triaxial strongly-deformed bands (TSDBs)using the particle-triaxial rotor semiclassical formalism. Discussed wobbling motion, regions of allowed and forbidden transversal wobbling motion. Comparison with experimental data.
doi: 10.1103/PhysRevC.101.014302
2020RA30 J.Phys.(London) G47, 025101 (2020) A.A.Raduta, R.Poenaru, C.M.Raduta Towards a new semi-classical interpretation of the wobbling motion in 163Lu NUCLEAR STRUCTURE 163Lu; calculated energies for the bands, wobbling energies, B(E2) within a particle-triaxial rotor semi-classical formalism. Comparison with available data.
doi: 10.1088/1361-6471/ab5ae4
2017RA04 J.Phys.(London) G44, 045102 (2017) A.A.Raduta, C.M.Raduta, A.H.Raduta Alternative description of chiral properties in 138Nd NUCLEAR STRUCTURE 138Nd; calculated average value of the proton angular momentum, angle between the angular momenta carried by protons and neutrons in a state from the ground band, chiral band energies, J, π, B(M1), B(E2). Comparison with available data.
doi: 10.1088/1361-6471/aa5af1
2016RA10 Int.J.Mod.Phys. E25, 1650017 (2016) A new renormalization procedure of the quasiparticle random phase approximation
doi: 10.1142/S0218301316500178
2015RA07 J.Phys.(London) G42, 065105 (2015) Semi-phenomenological description of the chiral bands in 188, 190Os NUCLEAR STRUCTURE 188,190Os; calculated energy levels, J, π, nuclear magnetic moments, B(M1). Comparison with available data.
doi: 10.1088/0954-3899/42/6/065105
2012RA31 Phys.Rev. C 86, 054307 (2012) Interplay of classical and quantal features within the coherent-state model
doi: 10.1103/PhysRevC.86.054307
2011RA07 J.Phys.(London) G38, 055102 (2011) Description of the 2ννββ decay within a gauge restored of a fully renormalized pnQRPA approach RADIOACTIVITY 100Mo, 116Cd(2β-); calculated number of single proton states, Gamow-Teller amplitude and strengths. pnQRPA approach, comparison with experimental data.
doi: 10.1088/0954-3899/38/5/055102
2011RA26 Rom.J.Phys. 56, 894 (2011) C.M.Raduta, A.A.Raduta, I.I.Ursu New Results for 2ννββ Decay within a Fully Renormalized pnQRPA with Gauge Restored Symmetry RADIOACTIVITY 148,150Nd, 154Sm, 160Gd(2β-); calculated Gamow-Teller amplitudes, T1/2, log ft. Gauge restored fully renormalized proton-neutron quasiparticle random phase approximation (GRFRpnQRPA) approach.
2011RA41 Phys.Rev. C 84, 064322 (2011) C.M.Raduta, A.A.Raduta, I.I.Ursu New theoretical results for 2νββ decay within a fully renormalized proton-neutron random-phase approximation approach with the gauge symmetry restored RADIOACTIVITY 48Ca, 76Ge, 82Se, 96Zr, 104Ru, 110Pd, 128,130Te, 148,150Nd, 154Sm, 160Gd(2β-); calculated proton-neutron dipole interaction, proton-neutron dipole pairing, single beta transition strengths, double beta decay rates, half-life. 48Sc, 76As, 82Br, 96Nb, 104Rh, 110Ag, 128,130I, 148,150Pm, 154Eu, 160Tb(β-), (EC), (β+); calculated log ft values for intermediate odd-odd nuclei. Fully renormalized pnQRPA, gauge projection, Ikeda sum rule, spurious states, ground-state instability. Comparison with experimental data.
doi: 10.1103/PhysRevC.84.064322
2010RA22 Phys.Rev. C 82, 068501 (2010) Description of the 2ννββ decay within a fully renormalized proton-neutron quasiparticle random-phase approximation approach with a restored gauge symmetry RADIOACTIVITY 100Mo(2β-); calculated decay rates and half-lives for 2νββ decay mode through the intermediate nucleus 100Tc. Fully renormalized proton-neutron quasiparticle random-phase approximation. Comparison with experimental data.
doi: 10.1103/PhysRevC.82.068501
2009RA27 Phys.Rev. C 80, 044327 (2009) A.A.Raduta, C.M.Raduta, A.Faessler Coherent state model extension for the description of positive and negative parity bands in even-odd nuclei NUCLEAR STRUCTURE 219,227Ra, 237U, 239Pu; analyzed levels, J, π, bands, and B(E1)/B(E2) ratios using coherent state model (CSM) and particle-core Hamiltonian within a projected spherical particle-core basis. Comparison with experimental data.
doi: 10.1103/PhysRevC.80.044327
2009RA31 Rom.J.Phys. 54, 887 (2009) A.A.Raduta, F.D.Aaron, C.M.Raduta A Possible Interpretation of the Multiplets 0+ and 2+ in 168Er NUCLEAR STRUCTURE 168Er; calculated energy levels, energies, B(E2); deduced γ-spectra. Sixth-order quadrupole boson Hamiltonian.
2008RA29 Rom.J.Phys. 53, 1183 (2008) 2νββ Decay to One Phonon States
2007RA08 Phys.Lett. B 647, 265 (2007) Double beta decay to the first 2+ state within a boson expansion formalism with a projected spherical single particle basis RADIOACTIVITY 48Ca, 76Ge, 96Zr, 100Mo, 110Pd, 116Cd, 128,130Te, 134,136Xe(2β-); calculated Gamow-Teller transition amplitudes, T1/2 for 2β-decay to excited states. Boson expansion formalism, comparison with other models and data.
doi: 10.1016/j.physletb.2007.02.007
2007RA26 Phys.Rev. C 76, 044306 (2007) Unified description of the double β decay to the first quadrupole phonon state in spherical and deformed nuclei RADIOACTIVITY 48Ca, 76Ge, 82Se, 96Zr, 100Mo, 104Ru, 110Pd, 116Cd, 128Te(2β); analyzed half-lives, Gamow-Teller amplitudes, Q(ββ).48Ti, 76Se, 82Kr, 96Mo, 100Ru, 104Pd, 110Cd, 116Sn, 128Xe; analyzed ββ decay rates to first 2+ states.
doi: 10.1103/PhysRevC.76.044306
2007RA32 Phys.Rev. C 76, 064309 (2007) A.A.Raduta, R.Budaca, C.M.Raduta Semiclassical description of a triaxial rigid rotor NUCLEAR STRUCTURE 158Er; calculated excitation energies using triaxial rotor Hamiltonian, compared with experimental data.
doi: 10.1103/PhysRevC.76.064309
2006RA05 Nucl.Phys. A768, 170 (2006) Positive and negative parity dipole bands in 226Ra NUCLEAR STRUCTURE 226Ra; calculated rotational bands moments of inertia, energy levels. Unified description of multiple bands with extended coherent state formalism, comparison with data.
doi: 10.1016/j.nuclphysa.2006.01.014
2006RA21 Phys.Rev. C 74, 044312 (2006) A.A.Raduta, Al.H.Raduta, C.M.Raduta Simultaneous description of four positive parity bands and four negative parity bands NUCLEAR STRUCTURE 158Gd, 172Yb, 228,232Th, 226Ra, 238U, 238Pu; calculated rotational bands energies, moments of inertia, configurations. Comparison with data.
doi: 10.1103/PhysRevC.74.044312
2005RA03 Phys.Rev. C 71, 024307 (2005) A.A.Raduta, C.M.Raduta, A.Escuderos Description of the two neutrino double β decay in deformed nuclei with projected spherical single particle basis RADIOACTIVITY 48Ca, 96Zr, 100Mo, 104Ru, 110Pd, 116Cd, 128,130Te, 134,136Xe(2β); calculated 2νββ-decay T1/2, Gamow-Teller amplitudes, strength distributions. Proton-neutron quasiparticle RPA, angular-momentum-projected single-particle basis.
doi: 10.1103/PhysRevC.71.024307
2005RA15 Nucl.Phys. A756, 153 (2005) New results for the fully renormalized proton-neutron quasiparticle random phase approximation
doi: 10.1016/j.nuclphysa.2005.03.013
2000RA26 Nucl.Phys. A678, 382 (2000) A.A.Raduta, C.M.Raduta, B.Codirla New Features of Some Proton-Neutron Collective States
doi: 10.1016/S0375-9474(00)00324-9
1998RA11 Nucl.Phys. A634, 497 (1998) A.A.Raduta, C.M.Raduta, A.Faessler, W.A.Kaminski Description of the 2νββ Decay within a Fully Renormalised RPA Approach
doi: 10.1016/S0375-9474(98)00179-1
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