NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = N.Lo Iudice Found 107 matches. Showing 1 to 100. [Next]2023BY03 Phys.Rev. C 108, 024615 (2023) P.Bydzovsky, D.Denisova, D.Petrellis, D.Skoupil, P.Vesely, G.De Gregorio, F.Knapp, N.Lo Iudice Self-consistent many-body approach to the electroproduction of hypernuclei NUCLEAR REACTIONS 12C(e, eK+)12B, 16O(e, eK+)16N, 40Ca(e, eK+)40K, 48Ca(e, eK+)48K, E*<31 MeV; calculated differential σ(θ) for hypernuclei electroproduction, excitation spectrum, σ of electroproduction for selected hypernucleus states. Microscopic self-consistent many-body mean field approach, known as Tamm-Dancoff for hypernuclei extended by equation of motion phonon method (EMPM). Comparison to available experimental data and empirical shell-model calculations. Relevance to the preparation of planned E12-15-008 experiment at JLab. NUCLEAR STRUCTURE 12B, 16N, 28Al, 40K, 48K; calculated Λ binding energy for hypernuclei. 40K, 48K; calculated levels of hypernuclei, J, π, proton and Λ single particle states. Tamm-Dancoff formalism with the NF YNG interaction and elementary amplitudes - SLA and BS3.
doi: 10.1103/PhysRevC.108.024615
2023DE21 Phys.Rev. C 108, 024316 (2023) G.De Gregorio, F.Knapp, P.Vesely, N.Lo Iudice Survey of the 8He properties within a microscopic multiphonon approach NUCLEAR STRUCTURE 8He; calculated levels, J, π, ground-state energy, proton and neutron radii, charge radii, proton and neutron single-particle energies, neutron and proton densities, B(E1) strength distribution, E1 isovector and isoscalar transition strengths, dipole polarizability, proton and neutron transition densities. Equation of motion phonon method (EMPM) which constructs and solves iteratively a set of equations of motion and yields states composed of an arbitrary number (n=2, 3, ...) of particle-hole (p-h) or two-quasiparticle Tamm-Dancoff (TD) phonons. Comparison to available experimental data. NUCLEAR REACTIONS 8He(γ, X), E<40 MeV; calculated E1 σ(E).
doi: 10.1103/PhysRevC.108.024316
2023KN01 Phys.Rev. C 107, 014305 (2023) F.Knapp, P.Papakonstantinou, P.Vesely, G.De Gregorio, J.Herko, N.Lo Iudice Comparative analysis of formalisms and performances of three different beyond-mean-field approaches NUCLEAR STRUCTURE 40Ca; calculated E1 and E2 responses, B(E1) and B(E2) distributions. 16O, 40,48Ca; calculated isovector and isoscalar E1 (dipole) strength functions, E2 (quadrupole) strength functions, E3 (octupole) strength functions, monopole strength function, energy weighted running sums of strength functions. Calculations using equation of motion phonon method (EMPM), second Tamm-Dancoff and random-phase approximations (STDA and SRPA).
doi: 10.1103/PhysRevC.107.014305
2022DE04 Phys.Rev. C 105, 024326 (2022) G.De Gregorio, F.Knapp, N.Lo Iudice, P.Vesely Spectroscopic properties of 4He within a multiphonon approach NUCLEAR STRUCTURE 4He; calculated levels, J, π, charge radii, ground state energy, B(E1) distribution. Equation of motion phonon method (EMPM). Comparison to experimental data. NUCLEAR REACTIONS 4He(γ, X), E=18-48 MeV; calculated σ of Giant Dipole Resonance excitation. Equation of motion phonon method (EMPM) calculations performed with up to 3 phonons. Comparison to experimental data.
doi: 10.1103/PhysRevC.105.024326
2021DE30 Phys.Lett. B 821, 136636 (2021) G.De Gregorio, F.Knapp, N.Lo Iudice, P.Vesely Removal of the center of mass in nuclei and its effects on 4He NUCLEAR STRUCTURE 4He; calculated excitation energies, J, π, n-phonon compositions, B(E1) using an equation of motion method for solving the nuclear eigenvalue problem.
doi: 10.1016/j.physletb.2021.136636
2020DE03 Phys.Rev. C 101, 024308 (2020) G.De Gregorio, F.Knapp, N.Lo Iudice, P.Vesely Proper treatment of the Pauli principle in mirror nuclei within the microscopic particle(hole)-phonon scheme NUCLEAR STRUCTURE 15,17O, 15N, 17F, 39Ca, 39K; calculated levels, J, π, magnetic dipole and electric quadrupole moments, log ft values for β decays, B(M1), B(E1), B(E2), B(E3) using the space spanned by states composed of a particle (hole) coupled to Tamm-Dancoff approximation (TDA) phonons with NNLOsat chiral potential, and with and without the proton-neutron potential. Comparison with experimental data.
doi: 10.1103/PhysRevC.101.024308
2020PO04 Acta Phys.Pol. B51, 617 (2020) J.Pokorny, G.De Gregorio, F.Knapp, N.Lo Iudice, P.Vesely Effect of Λ Particle Phonon Coupling on the Energy Spectra of 5ΛHe and 17ΛO*
doi: 10.5506/APhysPolB.51.617
2019DE02 Phys.Rev. C 99, 014316 (2019) G.De Gregorio, F.Knapp, N.Lo Iudice, P.Vesely Microscopic multiphonon approach to nuclei with a valence hole in the oxygen region NUCLEAR STRUCTURE 15,16,21,22O, 15,21N; calculated levels, J, π, B(E1), B(M1), B(E2), B(E3), magnetic moments, β-decay logft values, and pygmy and giant dipole resonance (GDR) cross sections, and Phonon composition of selected states using microscopic multiphonon equation of motion method (EMPM) for odd nuclei with a valence hole. Comparison with experimental data. RADIOACTIVITY 21N(β-); calculated logft and B(GT) using microscopic multiphonon equation of motion method (EMPM). Comparison with available experimental data.
doi: 10.1103/PhysRevC.99.014316
2018DE11 Phys.Rev. C 97, 034311 (2018) G.De Gregorio, F.Knapp, N.Lo Iudice, P.Vesely Microscopic multiphonon approach to spectroscopy in the neutron-rich oxygen region NUCLEAR STRUCTURE 22,23O, 23F; calculated levels, J, π, phonon composition of the low-lying states, weights of two-phonon components, E1 reduced strength distributions, E1 cross section, transition densities for low-lying 1- states, isoscalar versus isovector B(E1), Hartree-Fock levels for 23O and 23F. Equation of motion phonon method (EMPM), Tamm-Dancoff approximation (TDA), and Hartree-Fock method. Comparison with experimental data. RADIOACTIVITY 23O(β-); calculated logft, B(GT) and B(F) strengths, using equation of motion phonon method (EMPM), Tamm-Dancoff approximation (TDA), and Hartree-Fock method. Comparison with experimental data.
doi: 10.1103/PhysRevC.97.034311
2017DE07 Phys.Rev. C 95, 024306 (2017) G.De Gregorio, J.Herko, F.Knapp, N.Lo Iudice, P.Vesely Ground-state correlations within a nonperturbative approach NUCLEAR STRUCTURE 4He, 16O, 40Ca; calculated ground-state energies, binding energies/nucleon, point proton radii, ground state correlations, two-phonon components of the ground state in 16O; investigated convergence properties versus the harmonic oscillator frequency and space dimensions. 4He, 16,24O, 34Si, 40,48Ca, 48,56,78Ni, 88Sr, 90Zr, 100,114,132Sn, 146Gd, 208Pb; calculated root-mean-square point proton radii, and compared with experimental values. Nonperturbative calculations using Hartree-Fock basis within an equation-of-motion phonon method with a nucleon-nucleon optimized chiral potential.
doi: 10.1103/PhysRevC.95.024306
2017DE08 Phys.Rev. C 95, 034327 (2017) G.De Gregorio, F.Knapp, N.Lo Iudice, P.Vesely Low- and high-energy spectroscopy of 17O and 17F within a microscopic multiphonon approach NUCLEAR STRUCTURE 17O, 17F; calculated complete set of levels, J, π, phonon amplitudes for selected states, B(E1), B(E2), quadrupole moments, magnetic dipole moments, log ft value for β decay of 17F ground-state. 16,17O, 17F; calculated cross sections for pygmy and giant dipole resonances. Microscopic multiphonon equation of motion method for odd nuclei, using TammDancoff phonons. Comparison with experimental data.
doi: 10.1103/PhysRevC.95.034327
2017DE16 Phys.Scr. 92, 074003 (2017) G.De Gregorio, F.Knapp, N.Lo Iudice, P.Vesely A microscopic multiphonon approach to even and odd nuclei NUCLEAR REACTIONS 132Sn, 208Pb, 16,17O, 17F(γ, X), E not given; calculated electric dipole σ. Comparison with experimental data.
doi: 10.1088/1402-4896/aa6fa2
2016DE10 Phys.Rev. C 93, 044314 (2016) G.De Gregorio, F.Knapp, N.Lo Iudice, P.Vesely Self-consistent quasiparticle formulation of a multiphonon method and its application to the neutron-rich 20O nucleus NUCLEAR STRUCTURE 20O; calculated energy levels, J, π, B(E2), B(E1), E1 cross section, pygmy and giant dipole resonances, 2-qp compositions of the first 2+ state, and two 1- TDA phonons. Bogoliubov quasiparticle formulation of an equation-of-motion multiphonon method (EMPM) with phonons obtained in Tamm-Dancoff approximation (TDA). Comparison with experimental values.
doi: 10.1103/PhysRevC.93.044314
2016DE38 Phys.Rev. C 94, 061301 (2016) G.De Gregorio, F.Knapp, N.Lo Iudice, P.Vesely Microscopic multiphonon method for odd nuclei and its application to 17O NUCLEAR STRUCTURE 17O; calculated energy levels, J, π, B(E2), electric quadrupole moment, magnetic dipole moment, pygmy and giant dipole resonance cross sections. New equation of motion phonon method for odd-A nuclei. Comparison with experimental data.
doi: 10.1103/PhysRevC.94.061301
2015KN01 Phys.Rev. C 92, 054315 (2015) F.Knapp, N.Lo Iudice, P.Vesely, F.Andreozzi, G.De Gregorio, A.Porrino Dipole response in 208Pb within a self-consistent multiphonon approach NUCLEAR STRUCTURE 208Pb; calculated pygmy and giant-dipole resonance cross sections, energy levels, B(E1), neutron skin radius using self-consistent multiphonon, equation of motion phonon method (EMPM). Comparison with experimental data.
doi: 10.1103/PhysRevC.92.054315
2014BI01 J.Phys.(London) G41, 025109 (2014) D.Bianco, F.Knapp, N.Lo Iudice, P.Vesely, F.Andreozzi, G.De Gregorio, A.Porrino A self-consistent study of multipole response in neutron-rich nuclei using a modified realistic potential NUCLEAR STRUCTURE 16,18,20,22O, 116,124,130,132Sn; calculated neutron single-particle spectra, B(E1), strength functions. HFB, comparison with available data.
doi: 10.1088/0954-3899/41/2/025109
2014KN01 Phys.Rev. C 90, 014310 (2014) F.Knapp, N.Lo Iudice, P.Vesely, F.Andreozzi, G.De Gregorio, A.Porrino Dipole response in 132Sn within a self-consistent multiphonon approach NUCLEAR STRUCTURE 132Sn; calculated neutron and proton single-particle levels, pygmy resonances, dipole response, isovector and isoscalar E1 strengths, neutron particle-hole phonon composition, E1 transition density; strength fragmentation enhanced. Equation of motion phonon method and Tamm-Dancoff approximation with Hartree-Fock basis. Comparison with experimental results.
doi: 10.1103/PhysRevC.90.014310
2013BA38 Phys.Rev. C 88, 021302 (2013) C.Bauer, G.Rainovski, N.Pietralla, D.Bianco, A.Blazhev, T.Bloch, S.Bonig, A.Damyanova, M.Danchev, K.A.Gladnishki, T.Kroll, J.Leske, N.Lo Iudice, T.Moller, K.Moschner, J.Pakarinen, P.Reiter, M.Scheck, M.Seidlitz, B.Siebeck, C.Stahl, R.Stegmann, T.Stora, Ch.Stoyanov, D.Tarpanov, M.J.Vermeulen, D.Voulot, N.Warr, F.Wenander, V.Werner, H.De Witte Local suppression of collectivity in the N=80 isotones at the Z=58 subshell closure NUCLEAR REACTIONS 48Ti, 64Zn(140Nd, 140Nd'), E=399 MeV; measured Eγ, Iγ, (particle)γ-coin, yields using RILIS source and Miniball array at REX-ISOLDE-CERN facility. 140Nd; deduced E2 and diagonal matrix elements, B(E2) and Q2 for first 2+ state from Coulomb excitation. 48Ti, 64Zn, 140Sm; measured Eγ for first 2+ states. Comparison with shell-model and QPM calculations. Systematics of B(E2) values for first 2+ states in even-even N=80, Z=50-60 nuclei.
doi: 10.1103/PhysRevC.88.021302
2013BI08 Phys.Rev. C 88, 024303 (2013) D.Bianco, N.Lo Iudice, F.Andreozzi, A.Porrino, F.Knapp Spectroscopy of neutron-rich Te and Xe isotopes within a new shell model context NUCLEAR STRUCTURE 134Sn, 134,136,138,140Te, 136,138,140Xe; calculated levels, J, π, B(E2), B(M1); deduced collectivity, neutron-proton symmetry. Large-scale shell model calculation based on an iterative matrix diagonalization algorithm. Comparison with experimental data. Systematics of energies and B(E2) values of first 2+ states in even-even A=126-140 Te and A=132-140 Xe nuclei.
doi: 10.1103/PhysRevC.88.024303
2013KV01 Phys.Scr. T154, 014019 (2013) J.Kvasil, A.Repko, V.O.Nesterenko, W.Kleinig, P.-G.Reinhard, N.Lo Iudice Toroidal, compression and vortical dipole strengths in 124Sn NUCLEAR STRUCTURE 100,124,132Sn; calculated toroidal, vortical and compression dipole strength functions. Self-consistent separable Skyrme-RPA approach.
doi: 10.1088/0031-8949/2013/T154/014019
2013KV02 Eur.Phys.J. A 49, 119 (2013) J.Kvasil, V.O.Nesterenko, W.Kleinig, D.Bozik, P.-G.Reinhard, N.Lo Iudice Toroidal, compression, and vortical dipole strengths in 144-154Sm: Skyrme-RPA exploration of the deformation effect NUCLEAR STRUCTURE 144,148,150,152,154Sm; calculated dipole strength using RPA with different Skyrme forces and HF/BCS, binding energy, Q, photoabsorption σ vs energy. Compared with available data.
doi: 10.1140/epja/i2013-13119-3
2012BI01 Phys.Rev. C 85, 014313 (2012) D.Bianco, F.Knapp, N.Lo Iudice, F.Andreozzi, A.Porrino Upgraded formulation of the nuclear eigenvalue problem in a microscopic multiphonon basis NUCLEAR STRUCTURE 16O; calculated E1 strength function and cross section, isoscalar E2 reduced strength, phonon structure of 0+, 1- and 2+ states. Equation of motion method; eigenvalue problem in multiphonon space in terms of Tamm-Dancoff phonons, and Nilsson or Hartree-Fock basis. Comparison with experimental data.
doi: 10.1103/PhysRevC.85.014313
2012BI04 Phys.Rev. C 85, 034332 (2012) D.Bianco, F.Andreozzi, N.Lo Iudice, A.Porrino, F.Knapp Importance-sampling diagonalization algorithm for large-scale shell model calculations on N=80 isotones NUCLEAR STRUCTURE 132Te, 134Xe, 136Ba, 138Ce, 140Nd, 142Sm; calculated levels, J, π, B(E2), B(M1), mixed symmetry states. Iterative matrix diagonalization algorithm with an importance sampling, convergence properties. Comparison with experimental data, other shell-model calculations, and systematics of lowest 2+ states in N=80 isotones.
doi: 10.1103/PhysRevC.85.034332
2012BI11 Phys.Rev. C 86, 044325 (2012) D.Bianco, N.Lo Iudice, F.Andreozzi, A.Porrino, F.Knapp Mixed-symmetry states in Te isotopes within a large-scale shell model approach NUCLEAR STRUCTURE 126,128,130,132Te; calculated levels, B(E2), B(M1), using large-scale shell model calculations with a new diagonalization algorithm. Mixed symmetry states. Comparison with experimental data.
doi: 10.1103/PhysRevC.86.044325
2012BI12 Phys.Rev. C 86, 044327 (2012) D.Bianco, F.Knapp, N.Lo Iudice, F.Andreozzi, A.Porrino, P.Vesely Electric dipole response in 208Pb within a new microscopic multiphonon approach NUCLEAR STRUCTURE 208Pb; calculated dipole resonances, E1 σ(ω), B(E1) for giant and pygmy dipole resonances (GDR and PDR) using the microscopic multiphonon approach with a new equation of motion phonon method. Comparison with experimental data.
doi: 10.1103/PhysRevC.86.044327
2012BI17 J.Phys.:Conf.Ser. 366, 012004 (2012) D.Bianco, F.Andreozzi, N.Lo Iudice, A.Porrino, F.Knapp Complex nuclear spectra in a large scale shell model approach NUCLEAR STRUCTURE 130,131,132,133,134Xe; calculated level energy, B(E2), B(M1). 132,133,134Xe calculated low-energy states energy, J, π, γ transitions. 130Xe calculated energy spectrum. Compared to data.
doi: 10.1088/1742-6596/366/1/012004
2012KN03 J.Phys.:Conf.Ser. 337, 012028 (2012) F.Knapp, D.Bianco, N.Lo Iudice, F.Andreozzi, A.Porrino Multiphonon nuclear response in 16O: A microscopic treatment equivalent to shell model NUCLEAR STRUCTURE 16O; calculated energy levels, γ E1 strength distribution using multiphonon states built on Tamm-Dancoff phonons.
doi: 10.1088/1742-6596/337/1/012028
2012LO17 J.Phys.:Conf.Ser. 366, 012031 (2012) N.Lo Iudice, D.Bianco, F.Knapp, F.Andreozzi, A.Porrino, P.Vesely Multiphonon Approaches to Complex Spectroscopy
doi: 10.1088/1742-6596/366/1/012031
2011BI07 Phys.Rev. C 84, 024310 (2011) D.Bianco, F.Andreozzi, N.Lo Iudice, A.Porrino, F.Knapp Matrix diagonalization algorithm and its applicability to the nuclear shell model NUCLEAR STRUCTURE 130,132,134Xe; calculated levels, J, B(E2), B(M1). New matrix diagonalization algorithm, shell model calculations. Comparison with experimental data.
doi: 10.1103/PhysRevC.84.024310
2011BI11 J.Phys.:Conf.Ser. 312, 092018 (2011) D.Bianco, F.Andreozzi, N.Lo Iudice, A.Porrino, F.Knapp A new algorithm for large scale shell model calculations and its applicability to medium-heavy and neutron rich nuclei NUCLEAR STRUCTURE 128Te; calculated low-lying states E, J, π, B(E2) using large-scale shell model.
doi: 10.1088/1742-6596/312/9/092018
2011LO23 Phys.Rev. C 84, 044314 (2011) N.Lo Iudice, Ch.Stoyanov, D.Tarpanov E2 transitions in Sn isotopes within the quasiparticle-phonon model NUCLEAR STRUCTURE 102,104,106,108,110,112,114,116,118,120,122,124,126,128,130Sn; analyzed first 2+ excitation energies, B(E2) values, configurations. Quasiparticle-phonon model, quadrupole pairing with bare effective charges. Comparison with experimental data.
doi: 10.1103/PhysRevC.84.044314
2010BI16 J.Phys.:Conf.Ser. 205, 012002 (2010) D.Bianco, F.Andreozzi, N.Lo Iudice, A.Porrino, S.Dimitrova An upgraded version of an importance sampling algorithm for large scale shell model calculations NUCLEAR STRUCTURE 48Cr, 110Sn; calculated specified levels, J, π using large scale shell model with sampling iterative algorithm.
doi: 10.1088/1742-6596/205/1/012002
2010LO13 J.Phys.:Conf.Ser. 205, 012008 (2010) N.Lo Iudice, F.Andreozzi, F.Knapp, A.Porrino, J.Kvasil Role of multiphonon configurations in nuclear spectra and responses: A new approach NUCLEAR STRUCTURE 16O; calculated levels, J, π, Eλ distributions using EMPM (Equation of Motion Phonon Method), Tamm-Dancoff approximation, RPA. Compared with data.
doi: 10.1088/1742-6596/205/1/012008
2010PH01 Phys.Rev. C 82, 034321 (2010) A.A.Phillips, P.E.Garrett, N.Lo Iudice, A.V.Sushkov, L.Bettermann, N.Braun, D.G.Burke, G.A.Demand, T.Faestermann, P.Finlay, K.L.Green, R.Hertenberger, K.G.Leach, R.Krucken, M.A.Schumaker, C.E.Svensson, H.-F.Wirth, J.Wong Structure of the Kπ=4+ bands in 186, 188Os NUCLEAR REACTIONS 185,187Re(3He, d), E=30 MeV; measured E(d), I(d), σ, σ(θ); DWBA analysis of σ(θ) data. 186,188Os; deduced levels, J, π, L-transfers, spectroscopic factors, bands and amplitudes of two-quasiparticle components. Comparison with quasiparticle-phonon model (QPM) predictions.
doi: 10.1103/PhysRevC.82.034321
2010TA32 J.Phys.:Conf.Ser. 205, 012029 (2010) D.Tarpanov, Ch.Stoyanov, N.Lo Iudice, N.Van Giai, V.Voronov Structure of the low-lying states in some N=80 isotones NUCLEAR STRUCTURE 136Ba, 138Ce; calculated B(E2), B(M1), fragmentation of gigantic resonance using QPM with separable interaction from Skyrme force. Compared with data.
doi: 10.1088/1742-6596/205/1/012029
2009AN13 Int.J.Mod.Phys. E18, 944 (2009) F.Andreozzi, F.Knapp, N.Lo Iudice, A.Porrino, J.Kvasil A new equation of motion method for multiphonon nuclear spectra NUCLEAR STRUCTURE 16O; calculated level properties: J, π, multi-phonon states.
doi: 10.1142/S0218301309013087
2009LO02 Phys.Rev. C 80, 024311 (2009) N.Lo Iudice, Ch.Stoyanov, N.Pietralla Splitting of the 2+ mixed symmetry mode in the proximity of the N = 82 shell closure NUCLEAR STRUCTURE 138,142Ce, 144Nd; calculated 2+ mixed symmetry states, B(E2), B(M1), configurations using quasiparticle phonon model calculations. Comparison with experimental data.
doi: 10.1103/PhysRevC.80.024311
2008AN12 Phys.Rev. C 78, 054308 (2008) F.Andreozzi, F.Knapp, N.Lo Iudice, A.Porrino, J.Kvasil Multiphonon nuclear response in 16O: A microscopic treatment equivalent to the shell model NUCLEAR STRUCTURE 16O; calculated E1, E2, E3 transition strengths, level energies.
doi: 10.1103/PhysRevC.78.054308
2008KV01 Int.J.Mod.Phys. E17, 196 (2008) J.Kvasil, N.Lo Iudice, F.Andreozzi, A.Porrino, F.Knapp Collective bands in superdeformed nuclei NUCLEAR STRUCTURE 152Dy, 190Hg; analyzed superdeformed bands, and strength of E1 transitions using Cranked Nilsson + QRPA Model.
doi: 10.1142/S0218301308009690
2008LO05 Phys.Rev. C 77, 044310 (2008) N.Lo Iudice, Ch.Stoyanov, D.Tarpanov Fine structure of proton-neutron mixed symmetry states in some N = 80 isotones NUCLEAR STRUCTURE 134Xe, 136Ba, 138Ce; calculated level energies, B(E2), J, π, configurations, B(M1). Quasiparticle-phonon model. Comparison with experimental data.
doi: 10.1103/PhysRevC.77.044310
2008LO08 Phys.Rev. C 78, 054304 (2008) Microscopic structure of low-lying states in 188, 190, 192Os NUCLEAR STRUCTURE 188,190,192Os; calculated B(E2), B(E4), energies and structures of bandhead states. Quasiparticle-phonon model. Comparison with experimental data. NUCLEAR REACTIONS 186,188,190Os(t, p); 190,192,194Os(p, t); calculated spectroscopic factors.
doi: 10.1103/PhysRevC.78.054304
2007AN05 Int.J.Mod.Phys. E16, 580 (2007) F.Andreozzi, N.Lo Iudice, A.Porrino, F.Knapp, J.Kvasil An exact microscopic multiphonon approach to nuclear collective excitations NUCLEAR STRUCTURE 16O; calculated E1 and E2 strength distributions.
doi: 10.1142/S0218301307006022
2007AN13 Phys.Rev. C 75, 044312 (2007) F.Andreozzi, F.Knapp, N.Lo Iudice, A.Porrino, J.Kvasil Exact formulation and solution of the nuclear eigenvalue problem in a microscopic multiphonon space NUCLEAR STRUCTURE 16O; calculated levels, J, π, E3 strength distribution. Tamm-Dancoff phonons.
doi: 10.1103/PhysRevC.75.044312
2007AN15 Prog.Part.Nucl.Phys. 59, 259 (2007) F.Andreozzi, F.Knapp, N.Lo Iudice, A.Porrino, J.Kvasil A new exact microscopic multiphonon approach to the nuclear eigenvalue problem NUCLEAR STRUCTURE 16O; calculated E2 reduced strength, Isovector E1 strength and Isoscalar dipole strength distributions using an exact microscopic multiphonon approach to the nuclear eigenvalue problem.
doi: 10.1016/j.ppnp.2006.12.007
2007AN24 Nucl.Phys. A788, 20c (2007) F.Andreozzi, N.Lo Iudice, A.Porrino, F.Knapp, J.Kvasil An exact microscopic multiphonon approach to collective modes in nuclei NUCLEAR STRUCTURE 16O; calculated E1 strength distribution. Tamm-Dancoff phonons.
doi: 10.1016/j.nuclphysa.2007.01.003
2007BU25 Phys.Atomic Nuclei 70, 1336 (2007) D.Bucurescu, R.F.Casten, G.Graw, J.Jolie, N.Braun, P.von Brentano, T.Faestermann, S.Heinze, R.Hertenberger, N.Lo Iudice, R.Krucken, M.Mahgoub, D.A.Meyer, O.Moller, D.Mucher, C.Scholl, N.Yu.Shirikova, Y.Sun, A.V.Sushkov, H.-F.Wirth High-resolution study of 0+ and 2+ excitations in 168Er with the (p, t) reaction NUCLEAR REACTIONS 170Er(p, t), E=25 MeV; measured reaction product energies energies and angular distributions. 168Er deduced 0+ and 2+ level energies and reaction transfer strength distributions.
doi: 10.1134/S1063778807080030
2007KV02 Phys.Rev. C 75, 034306 (2007) J.Kvasil, N.Lo Iudice, F.Andreozzi, F.Knapp, A.Porrino Microscopic structure of deformed and superdeformed collective bands in rotating nuclei NUCLEAR STRUCTURE 190,192,194Hg, 152Dy; calculated deformed and superdeformed rotational bands energies, configurations, strength distributions for linking transitions. Cranked Nilsson plus quasiparticle RPA approach.
doi: 10.1103/PhysRevC.75.034306
2006BU09 Phys.Rev. C 73, 064309 (2006) D.Bucurescu, G.Graw, R.Hertenberger, H.-F.Wirth, N.Lo Iudice, A.V.Sushkov, N.Yu.Shirikova, Y.Sun, T.Faestermann, R.Krucken, M.Mahgoub, J.Jolie, P.von Brentano, N.Braun, S.Heinze, O.Moller, D.Mucher, C.Scholl, R.F.Casten, D.A.Meyer High-resolution study of 0+ and 2+ excitations in 168Er with the (p, t) reaction NUCLEAR REACTIONS 170Er(p, t), E=25 MeV; measured triton spectra, σ(E, θ). 168Er deduced levels, J, π, configurations. Comparison with quasiparticle-phonon model and projected shell model predictions.
doi: 10.1103/PhysRevC.73.064309
2006KV02 Phys.Rev. C 73, 034302 (2006) J.Kvasil, N.Lo Iudice, F.Andreozzi, F.Knapp, A.Porrino Shape transitions and collective excitations in 152Dy NUCLEAR STRUCTURE 152Dy; calculated deformation, superdeformation, rotational bands moments of inertia, B(E1), B(E0), B(M1) distributions; deduced scissors mode. Self-consistent cranked Nilsson plus quasiparticle RPA approach.
doi: 10.1103/PhysRevC.73.034302
2006LO04 Phys.Rev. C 73, 037305 (2006) Microscopic study of collectivity and proton-neutron symmetry in 92Zr NUCLEAR STRUCTURE 92Zr; calculated levels, J, π, configurations, B(E2), B(M1), g factors. Quasiparticle-phonon model, comparison with data.
doi: 10.1103/PhysRevC.73.037305
2005LO09 Phys.Rev. C 72, 034303 (2005) N.Lo Iudice, A.V.Sushkov, N.Yu.Shirikova Microscopic structure of low-lying 0+ states in deformed nuclei NUCLEAR STRUCTURE 168Er, 228,230Th, 232U; calculated 0+ states energies, spectroscopic factors, B(E2), E0 strengths. Microscopic quasiparticle-phonon model.
doi: 10.1103/PhysRevC.72.034303
2004AN25 Yad.Fiz. 67, 1861 (2004); Phys.Atomic Nuclei 67, 1834 (2004) F.Andreozzi, N.Lo Iudice, A.Porrino An Importance Sampling Algorithm for Diagonalizing the Nuclear Shell-Model Hamiltonian NUCLEAR STRUCTURE 48Cr, 108Sn; calculated level energies, B(E2). Shell model, iterative importance sampling algorithm.
doi: 10.1134/1.1811187
2004KV02 Phys.Rev. C 69, 064308 (2004) J.Kvasil, N.Lo Iudice, R.G.Nazmitdinov, A.Porrino, F.Knapp Collective magnetic excitations and backbending in fast rotating nuclei NUCLEAR STRUCTURE 156Dy, 158Er; calculated deformation vs spin, electromagnetic strength functions, collective magnetic dipole excitations, rotational band backbending features. Cranked Nilsson plus RPA approach.
doi: 10.1103/PhysRevC.69.064308
2004LO07 Phys.Rev. C 69, 044312 (2004) A microscopic study of the proton-neutron symmetry and phonon structure of the low-lying states in 92Zr NUCLEAR STRUCTURE 92Zr; calculated levels, J, π, configurations, transitions B(E2), B(E1), B(M1); deduced proton-neutron symmetry breaking, multiphonon states, related features. Microscopic multiphonon approach, RPA.
doi: 10.1103/PhysRevC.69.044312
2004LO20 Phys.Rev. C 70, 064316 (2004) N.Lo Iudice, A.V.Sushkov, N.Yu.Shirikova Microscopic structure of low-lying 0+ states in the deformed 158Gd NUCLEAR STRUCTURE 158Gd; calculated 0+ excited states energies, configurations, spectroscopic factors, related features. Quasiparticle-phonon model.
doi: 10.1103/PhysRevC.70.064316
2004ST22 Yad.Fiz. 67, 1672 (2004); Phys.Atomic Nuclei 67, 1645 (2004) Microscopic Description of Mixed-Symmetry States in Nearly Spherical Nuclei NUCLEAR STRUCTURE 92Zr, 94Mo; calculated levels, J, π, configurations, B(E2), B(M1). Quasiparticle-phonon model, mixed-symmetry states.
doi: 10.1134/1.1802351
2003AN25 J.Phys.(London) G29, 2319 (2003) F.Andreozzi, N.Lo Iudice, A.Porrino An importance sampling algorithm for generating exact eigenstates of the nuclear Hamiltonian NUCLEAR STRUCTURE 48Cr, 108Sn, 133Xe; calculated levels, J, π, B(E2). Importance sampling algorithm.
doi: 10.1088/0954-3899/29/10/302
2003KV01 J.Phys.(London) G29, 753 (2003) J.Kvasil, N.Lo Iudice, Ch.Stoyanov, P.Alexa Compressional and toroidal dipole modes in nuclei NUCLEAR STRUCTURE 90Zr, 116Sn, 144Sm, 208Pb; analyzed dipole strength distributions; deduced sensitivity to single-particle energies, possible toroidal contribution.
doi: 10.1088/0954-3899/29/4/312
2002LO10 Phys.Rev. C65, 064304 (2002) Microscopic Structure of Low-Lying Positive Parity States in Nuclei Near Shell Closure NUCLEAR STRUCTURE 94Mo, 112Cd, 136Ba; calculated level configurations, transitions B(E2), B(M1). Quasiparticle-phonon model, comparison with data and other models.
doi: 10.1103/PhysRevC.65.064304
2001KV01 Phys.Rev. C63, 054305 (2001) J.Kvasil, N.Lo Iudice, V.O.Nesterenko, A.Mackova, P.Alexa Orbital and Spin Magnetic Quadrupole Response in Heavy Nuclei NUCLEAR STRUCTURE 90Zr, 144,154Sm; calculated magnetic quadrupole strength functions, orbital and spin components. Proton-neutron RPA, comparisons with data.
doi: 10.1103/PhysRevC.63.054305
2001KV03 Yad.Fiz. 64, No 6, 1105 (2001); Phys.Atomic Nuclei 64, 1030 (2001) J.Kvasil, N.Lo Iudice, V.O.Nesterenko, A.Mackova Coupling of Giant Resonances via Residual Interactions NUCLEAR STRUCTURE 154Sm; calculated E2, M1 strength functions, coupling of giant resonances. 144Sm calculated M1 strength function. Averaging RPA approach with factorized residual interaction.
doi: 10.1134/1.1383611
2001LO17 Yad.Fiz. 64, No 6, 1108 (2001); Phys.Atomic Nuclei 64, 1033 (2001) Interplay between Orbital and Spin Motion in Heavy Nuclei NUCLEAR STRUCTURE 154Sm; calculated B(M1), orbital and spin contributions. 144,154Sm; calculated M2 strength functions.
doi: 10.1134/1.1383612
2001LO25 Phys.Rev. C64, 054301 (2001) N.Lo Iudice, A.V.Sushkov, N.Yu.Shirikova M1 Spin Excitations in Deformed Nuclei within a Microscopic Multiphonon Approach NUCLEAR STRUCTURE 154Sm; calculated B(M1) distribution; deduced role of two-phonon configurations. Quasiparticle-phonon model, comparison with data.
doi: 10.1103/PhysRevC.64.054301
2001ST21 Yad.Fiz. 64, No 6, 1223 (2001); Phys.Atomic Nuclei 64, 1147 (2001) Ch.Stoyanov, N.Lo Iudice, N.Tsoneva, M.Grinberg Properties of the Low-Lying Excited States in Even-Even Nuclei Around the Closed Shell N = 82 NUCLEAR STRUCTURE 136Ba, 144Nd; calculated levels, J, π, B(E2), B(M1). Quasiparticle phonon model.
doi: 10.1134/1.1383632
2000LO17 Trans.Bulg.Nucl.Soc. 5, 79 (2000) Interplay between Orbital and Spin Motion in M1 Transitions in Deformed Nuclei NUCLEAR STRUCTURE 162,163Dy, 154Sm; calculated B(M1). Phenomenological, microscopic approaches.
2000LO18 Phys.Rev. C62, 047302 (2000) Microscopic Description of Newly Discovered Mixed Symmetry States NUCLEAR STRUCTURE 94Mo; calculated levels, J, π, configurations, transitions B(E2), B(M1). Quasiparticle phonon model, mixed symmetry states.
doi: 10.1103/PhysRevC.62.047302
2000LO19 Riv.Nuovo Cimento Soc.Ital.Fis. 23, No 9, 1 (2000) Collective Excitations in Deformed Nuclei
1999SO15 J.Phys.(London) G25, 1023 (1999) V.G.Soloviev, A.V.Sushkov, N.Yu.Shirikova, N.Lo Iudice Dipole Strength Distribution in Doubly Even Deformed Nuclei NUCLEAR STRUCTURE 154Sm, 168Er, 178Hf, 238U; calculated E1, M1 strength distributions; deduced orbital, spin contributions. RPA. Comparisons with data.
doi: 10.1088/0954-3899/25/5/307
1998KV02 Phys.Rev. C58, 209 (1998) J.Kvasil, N.Lo Iudice, V.O.Nesterenko, M.Kopal Strength Functions for Collective Excitations in Deformed Nuclei NUCLEAR STRUCTURE 154Sm; calculated M2 strength function; deduced spin-dipole role. Symmetrized RPA.
doi: 10.1103/PhysRevC.58.209
1998LO02 Phys.Rev. C57, 1246 (1998) Energy-Weighted M1 Sum Rule in Deformed nuclei: A self-consistent approach
doi: 10.1103/PhysRevC.57.1246
1998PI03 Phys.Rev. C58, 184 (1998) N.Pietralla, P.von Brentano, R.-D.Herzberg, U.Kneissl, N.Lo Iudice, H.Maser, H.H.Pitz, A.Zilges Systematics of the Excitation Energy of the 1+ Scissors Mode and Its Empirical Dependence on the Nuclear Deformation Parameter NUCLEAR STRUCTURE Z=56-78; analyzed scissors mode excitation energy; deduced deformation dependence.
doi: 10.1103/PhysRevC.58.184
1998RA26 J.Phys.(London) G24, 1931 (1998) P.P.Raychev, R.P.Roussev, N.Lo Iudice, P.A.Terziev An Application of the Three-Dimensional q-Deformed Harmonic Oscillator to the Shell Model
doi: 10.1088/0954-3899/24/10/009
1997LO14 Fiz.Elem.Chastits At.Yadra 28, 1389 (1997); Phys.Part.Nucl. 28, 556 (1997) Magnetic Dipole Excitations in Deformed Nuclei
1997SO02 Nucl.Phys. A613, 45 (1997) V.G.Soloviev, A.V.Sushkov, N.Yu.Shirikova, N.Lo Iudice Low-Lying Magnetic and Electric Dipole Transitions in Odd-Mass Deformed Nuclei: A microscopic approach NUCLEAR STRUCTURE 157,159Tb, 161,163Dy, 167Er; calculated levels, B(λ), reduced widths. Quasiparticle-phonon model, separable Hamiltonian.
doi: 10.1016/S0375-9474(96)00426-5
1996LO02 Phys.Rev. C53, 2171 (1996) Semiclassical Interpretation of an M1 Sum Rule Derived within the Interacting Boson Model NUCLEAR STRUCTURE A=146-186; analyzed B(M1) data; calculated quadrupole bosons fraction vs mass number. Interacting boson model, semi-classical M1 sum rule.
doi: 10.1103/PhysRevC.53.2171
1996LO14 Nucl.Phys. A605, 61 (1996) M1 Excitations and Rotational Admixtures in Deformed Nuclei: A self-consistent mean field approach
doi: 10.1016/0375-9474(96)00177-7
1996RA37 Nucl.Phys. A608, 11 (1996) A.A.Raduta, N.Lo Iudice, I.I.Ursu Low-Lying Octupole Bands in the Coherent State Model NUCLEAR STRUCTURE 158Gd, 172Yb, 218,220,226Ra, 228,230,232Th, 232,234,236,238U, 238Pu; calculated levels, 0--band energy displacements, B(λ) ratios, octupole bands quadrupole moments. Coherent state model.
doi: 10.1016/S0375-9474(96)00264-3
1996RA47 Nuovo Cim. 109A, 1669 (1996) A.A.Raduta, N.Lo Iudice, I.I.Ursu Low-Lying Negative-Parity Bands in Heavy Nuclei: A phenomenological approach NUCLEAR STRUCTURE 158Gd, 172Yb, 218,220,226Ra, 238Pu, 228,230,232Th, 232,234,236,238U; calculated levels, energy displacements. Interacting boson Hamiltonian, quadrupole, octupole bosons.
doi: 10.1007/BF02773548
1996SO05 Nucl.Phys. A600, 155 (1996) V.G.Soloviev, A.V.Sushkov, N.Yu.Shirikova, N.Lo Iudice Effect of Two RPA Phonons on the Spectrum of the Low-Lying Magnetic Dipole Transitions in Deformed Nuclei NUCLEAR STRUCTURE 160,162,164Dy, 156,158,160Gd; calculated levels, B(M1) distribution; deduced two RPA phonons effect. Quasiparticle-phonon nuclear model, one-, two-RPA phonon states.
doi: 10.1016/0375-9474(96)00020-6
1995RA01 Nucl.Phys. A584, 84 (1995) A.A.Raduta, N.Lo Iudice, I.I.Ursu Description of Orbital and Spin Excitations within a Projected Spherical Single-Particle Basis NUCLEAR STRUCTURE 144,148,150,152,154Sm; calculated B(λ), transition strength distributions. Quasiparticle RPA approach.
doi: 10.1016/0375-9474(94)00510-T
1994LO09 Phys.Rev. C50, 127 (1994) N.Lo Iudice, A.A.Raduta, D.S.Delion Deformation Properties of the Scissors Mode in the Generalized Coherent State Model NUCLEAR STRUCTURE 142,146,148,150Nd, 144,148,150,152,154Sm, 154,156,158,160Gd, 160,162,164Dy, 168Er; calculated levels, B(λ). Generalized coherent state model, scissors mode.
doi: 10.1103/PhysRevC.50.127
1993LO02 Phys.Lett. 300B, 195 (1993) N.Lo Iudice, A.A.Raduta, D.S.Delion Scissors Mode and Nuclear Deformation in the Generalized Coherent State Model NUCLEAR STRUCTURE 148,150,152,154Sm; calculated M1 transition strength, energy. Generalized coherent state model.
doi: 10.1016/0370-2693(93)90352-I
1993LO04 Phys.Lett. 304B, 193 (1993) Scissors Mode and Nuclear Deformation. A Phenomenological Model Independent Analysis NUCLEAR STRUCTURE 144,148,150,152,154Sm, 142,148,146,150Nd, 154,156,158,160Gd, 160,162,164Dy, 168Er; calculated B(λ). Two rotor model, deformation, scissors mode.
doi: 10.1016/0370-2693(93)90281-L
1993RA01 Nucl.Phys. A551, 93 (1993) A.A.Raduta, D.S.Delion, N.Lo Iudice A Projected Single-Particle Basis for Deformed Nuclei NUCLEAR STRUCTURE A=48, 50, 52, 54, 56; calculated neutron pairing gap vs neutron number, quasiparticle, neutron single particle energies vs deformation. N=28-32; calculated neutron pairing gap vs deformation, neutron number. Deformed nuclei, projected single-particle basis.
doi: 10.1016/0375-9474(93)90305-H
1992RA14 Nuovo Cim. 105A, 663 (1992) A.A.Raduta, I.I.Ursu, N.Lo Iudice Low-Lying Bands as Alpha-Like Dipole Excitations of a Coherent Quadrupole Boson State NUCLEAR STRUCTURE 224,226Ra, 230,232Th, 238U, 238Pu; calculated levels, B(λ) ratios. Interacting boson Hamiltonian, coherent state model.
doi: 10.1007/BF02730772
1992RA24 Phys.Rev. C46, 1782 (1992) A.A.Raduta, I.I.Ursu, N.Lo Iudice Description of Collective Spin Excitations in Deformed Nuclei within a Projected Single-Particle Basis NUCLEAR STRUCTURE 154Sm; calculated nucleon single particle energies vs deformation parameter, M1 transition strength distribution. Schematic RPA, projected single particle basis.
doi: 10.1103/PhysRevC.46.1782
1991RA15 Phys.Rev. C44, 1929 (1991) A.A.Raduta, D.S.Delion, I.I.Ursu, N.Lo Iudice Semiclassical Description of Alpha Clustering in Heavy Nuclei NUCLEAR STRUCTURE 220Ra; calculated n, p occupation probability, gap parameters, levels. 220,218,222Ra, 214,216,218Rn, 222,224Th, 212Po; calculated ground state energy vs α-cluster number. Semi-classical model.
doi: 10.1103/PhysRevC.44.1929
1990LO08 Phys.Rev. C42, 241 (1990) N.Lo Iudice, F.Palumbo, A.Richter, H.J.Wortche Semiclassical Description of the Scissors Mode: Possible improvements and intrinsic limitations NUCLEAR REACTIONS 164Dy(e, e'), E not given; calculated form factors. Two-rotor model. NUCLEAR STRUCTURE 164Dy; calculated normalized transition density. Two-rotor model.
doi: 10.1103/PhysRevC.42.241
1990RA10 Phys.Rev. C41, 2358 (1990) A.A.Raduta, I.I.Ursu, J.Suhonen, N.Lo Iudice Electromagnetic Properties of Some Positive Parity Dipole States Described in Terms of Quadrupole and Octupole Interacting Bosons NUCLEAR STRUCTURE 238U; calculated levels, B(λ). Phenomenological quadrupole-octupole boson Hamiltonian.
doi: 10.1103/PhysRevC.41.2358
1989RA24 Nuovo Cim. 101A, 1037 (1989) A.A.Raduta, I.I.Ursu, J.Suhonen, N.Lo Iudice Low-Lying Positive-Parity Dipole States from a Quadrupole-Octupole Boson Hamiltonian NUCLEAR STRUCTURE 238U; calculated levels, B(λ). Quadrupole-octupole boson Hamiltonian.
doi: 10.1007/BF02800171
1989RA27 Z.Phys. A334, 403 (1989) Toward a Microscopic Description of the M1 States in Deformed Even-Odd Nuclei NUCLEAR STRUCTURE 157Gd; calculated levels, B(M1). Particle-core coupling scheme, RPA approach.
1988LO11 Phys.Rev. C38, 2895 (1988) M3 Transition to the Scissors Mode in the Two-Rotor Model and Random-Phase Approximation NUCLEAR STRUCTURE 164Dy; calculated B(λ), levels. RPA, two-rotor model.
doi: 10.1103/PhysRevC.38.2895
1987ER07 Nucl.Phys. A475, 199 (1987) On Experimental Tests of D-States in the 3He-3H Ground State NUCLEAR STRUCTURE 3He, 3H; analyzed D- state component data; deduced tensor force role.
doi: 10.1016/0375-9474(87)90161-8
1986LO10 Phys.Rev. C34, 1501 (1986) M3 Transition in the Two-Rotor Model NUCLEAR STRUCTURE 156Gd; calculated M3 form factor; deduced collective K(π)=1+ band member octupole strength. Two-rotor model.
doi: 10.1103/PhysRevC.34.1501
1985LO12 Phys.Lett. 161B, 18 (1985) N.Lo Iudice, E.Lipparini, S.Stringari, F.Palumbo, A.Richter Effect of Triaxial Deformations on the Splitting of the M1 Isovector Rotational State NUCLEAR STRUCTURE 164Dy, 174Yb; calculated isovector rotational states, M1 transition strength fragmentation. Sum rule approach.
doi: 10.1016/0370-2693(85)90599-4
1985RA08 Phys.Rev. C31, 1656 (1985) C.Rangacharyulu, E.J.Ansaldo, D.Stockhausen, D.Bender, S.Muller, A.Richter, N.Lo Iudice, F.Palumbo Search for Isovector Magnetic Quadrupole Strength and Spin-Isospin Correlations in 20Ne NUCLEAR REACTIONS 20Ne(e, e'), E=39.5-59.3 MeV; measured σ(E(e')), form factors. 20Ne deduced transitions, B(M2) distribution.
doi: 10.1103/PhysRevC.31.1656
1984BO09 Phys.Lett. 137B, 27 (1984) D.Bohle, A.Richter, W.Steffen, A.E.L.Dieperink, N.Lo Iudice, F.Palumbo, O.Scholten New Magnetic Dipole Excitation Mode Studied in the Heavy Deformed Nucleus 156Gd by Inelastic Electron Scattering NUCLEAR REACTIONS 156Gd(e, e'), E=25-56 MeV; measured σ(E(e')), σ(θ), M1 transition form factor. 158Gd(e, e'), E=25 MeV; measured σ(E(e')). 156Gd deduced collective magnetic dipole excitation mode, B(λ). 158Gd deduced evidence for collective magnetic dipole excitation mode.
doi: 10.1016/0370-2693(84)91099-2
1984DE10 Phys.Rev. C29, 1496 (1984) G.De Franceschi, F.Palumbo, N.Lo Iudice Reformulation of the Two-Rotor Model NUCLEAR STRUCTURE 156Gd; calculated M1 form factor. Two-rotor model reformulation.
doi: 10.1103/PhysRevC.29.1496
1984LO05 Phys.Rev. C30, 360 (1984) M2 Collective Excitations in Light Deformed Nuclei and Their Relationship to the One Pion Exchange Potential NUCLEAR STRUCTURE 12C, 28Si, 22Ne, 24Mg, 32S; calculated B(M2) strength distribution. One-pion exchange model.
doi: 10.1103/PhysRevC.30.360
1983GI09 Phys.Rev. C28, 888 (1983) G.Giberti, N.Lo Iudice, G.Varcaccio Spin-Isospin Ordered Shell Model States in Nuclei NUCLEAR STRUCTURE A=16-36; 28Si; analyzed spin-isospin phase associated configurations vs nuclear densities, deformations; deduced shell effects, ordered phase correlated shell model state character.
doi: 10.1103/PhysRevC.28.888
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