NSR Query Results
Output year order : Descending NSR database version of April 25, 2024. Search: Author = S.S.Dimitrova Found 35 matches. 2021KA36 Phys.Rev. C 104, 024311 (2021) D.Kalaydjieva, D.Kocheva, G.Rainovski, V.Karayonchev, J.Jolie, N.Pietralla, M.Beckers, A.Blazhev, A.Dewald, M.Djongolov, A.Esmaylzadeh, C.Fransen, K.A.Gladnishki, A.Goldkuhle, C.Henrich, I.Homm, K.E.Ide, P.R.John, R.Kern, J.Kleemann, Th.Kroll, C.Muller-Gatermann, M.Scheck, P.Spagnoletti, M.Stoyanova, K.Stoychev, V.Werner, A.Yaneva, S.S.Dimitrova, G.De Gregorio, H.Naidja, A.Gargano Microscopic structure of the one-phonon 2+ states of 208Po NUCLEAR REACTIONS 204Pb(12C, 8Be)208Po, E=62 MeV; measured Eγ, Iγ, (particle)γ-coin, half-lives of the first 2+ and 4+ levels by recoil-distance Doppler-shift (RDDS) method using the Cologne plunger device at the FN Tandem facility of the University of Cologne. 208Po; deduced levels, J, π, B(E2). Comparison with large-scale shell-model calculations. NUCLEAR STRUCTURE 208Po; calculated levels, J, π, B(E2), B(M1), magnetic dipole and electric quadrupole moments using large-scale shell-model calculations with an effective interaction derived from the realistic CD-Bonn nucleon-nucleon potential. Comparison with experimental data.
doi: 10.1103/PhysRevC.104.024311
2018DI15 Int.J.Mod.Phys. E27, 1850091 (2018) S.S.Dimitrova, A.A.Cowley, E.V.Zemlyanaya, K.V.Lukyanov Reaction mechanism of proton-induced pre-equilibrium α-particle emission from medium-mass nuclei at incident energies between 65 and 160 MeV NUCLEAR REACTIONS 197Au, 59Co, 58Ni, 90Zr(p, α), 93Nb(p, 3He), (p, α), E=65-160 MeV; analyzed available data on σ and analyzing power; deduced the competition between pickup and knockout.
doi: 10.1142/S021830131850091X
2017AD07 Phys.Rev. C 95, 024319 (2017) P.Adsley, D.G.Jenkins, J.Cseh, S.S.Dimitrova, J.W.Brummer, K.C.W.Li, D.J.Marin-Lambarri, K.Lukyanov, N.Y.Kheswa, R.Neveling, P.Papka, L.Pellegri, V.Pesudo, L.C.Pool, G.Riczu, F.D.Smit, J.J.van Zyl, E.Zemlyanaya α clustering in 28Si probed through the identification of high-lying 0+ states NUCLEAR REACTIONS 28Si(α, α'), E=200 MeV; measured scattered particles, σ(θ) using K600 magnetic spectrometer at iThemba LABS, natural Si target. 28Si; deduced levels, L-transfers, J, π, high-lying 0+ states. Comparison with multichannel dynamical symmetry (MUSY) calculations.
doi: 10.1103/PhysRevC.95.024319
2016CO04 Phys.Rev. C 93, 034624 (2016) A.A.Cowley, S.S.Dimitrova, E.V.Zemlyanaya, K.V.Lukyanov, J.J.van Zyl Inclusive (p(pol), α) reaction on 59Co at an incident energy of 100 MeV and comparison with the reaction mechanism for 93Nb between 65 and 160 MeV NUCLEAR REACTIONS 59Co(polarized p, α), E=100 MeV; measured Eα, Iα, σ(θ), analyzing powers Ay(θ) at iThemba LABS in Faure. 93Nb(polarized p, α), E=100 MeV; analyzed double-differential cross section and Ay(θ) data. Pickup and knockout processes. DWBA calculations. Comparison with calculations based on statistical multistep pre-equilibrium theory.
doi: 10.1103/PhysRevC.93.034624
2014DI02 Phys.Rev. C 89, 034616 (2014) S.S.Dimitrova, A.A.Cowley, J.J.van Zyl, E.V.Zemlyanaya, K.V.Lukyanov Inclusive reaction 93Nb(p(pol), α) at an incident energy of 160 MeV NUCLEAR REACTIONS 93Nb(polarized p, α), E=160 MeV; measured Eα, Iα, double-differential σ(θ), analyzing power Ay(θ), at iThemba Laboratory. Comparison of angular distribution and analyzing power data with DWBA predictions, and with statistical multistep method calculations.
doi: 10.1103/PhysRevC.89.034616
2014DI15 Phys.Rev. C 90, 054604 (2014) S.S.Dimitrova, A.A.Cowley, E.V.Zemlyanaya, K.V.Lukyanov Pre-equilibrium mechanisms in the 93Nb(p, α) inclusive reaction at incident energies from 65 to 160 MeV NUCLEAR REACTIONS 93Nb(polarized p, α), E=100 MeV; measured Eα, Iα, σ(θ), analyzing powers Ay(θ) at iThemba LABS; analyzed previous σ(θ) and Ay(θ) previous data at 65 MeV. Comparison with predictions of statistical multistep direct emission calculations.
doi: 10.1103/PhysRevC.90.054604
2012CO12 Phys.Rev. C 85, 054622 (2012) A.A.Cowley, J.J.van Zyl, S.S.Dimitrova, E.V.Zemlyanaya, K.V.Lukyanov Mechanism of the 93Nb(p, 3He) inclusive reaction at an incident energy of 160 MeV NUCLEAR REACTIONS 93Nb(polarized p, 3He), E=160 MeV; measured 3He spectra, double differential σ(θ), vector analyzing power (VAP) as function of scattering angle, emission energy distribution of VAP. Comparison with a multistep direct theory in which a reaction mechanism based on two-nucleon pickup combined with Distorted Wave Born approximation (DWBA).
doi: 10.1103/PhysRevC.85.054622
2007CO14 Phys.Rev. C 75, 054617 (2007) A.A.Cowley, J.Bezuidenhout, S.S.Dimitrova, P.E.Hodgson, S.V.Fortsch, G.C.Hillhouse, N.M.Jacobs, R.Neveling, F.D.Smit, J.A.Stander, G.F.Steyn, J.J.van Zyl Multistep direct mechanism in the (p(pol), 3He) inclusive reaction on 59Co and 93Nb at incident energies between 100 and 160 MeV NUCLEAR REACTIONS 59Co, 93Nb(polarized p, 3He), E=40-160 MeV; measured σ, angular distributions and analyzing powers. Compared results to model calculations.
doi: 10.1103/PhysRevC.75.054617
2002DU13 Phys.Rev. C65, 054319 (2002) J.Dukelsky, S.Pittel, S.S.Dimitrova, M.V.Stoitsov Density Matrix Renormalization Group Method and Large-Scale Nuclear Shell-Model Calculations
doi: 10.1103/PhysRevC.65.054319
2000CO29 Phys.Rev. C62, 064605 (2000) A.A.Cowley, G.F.Steyn, S.S.Dimitrova, P.E.Hodgson, G.J.Arendse, S.V.Fortsch, G.C.Hillhouse, J.J.Lawrie, R.Neveling, W.A.Richter, J.A.Stander, S.M.Wyngaardt Multistep Direct Mechanism in the (p(pol), 3He) Inclusive Reaction on 59Co and 93Nb at an Incident Energy of 100 MeV NUCLEAR REACTIONS 59Co, 93Nb(polarized p, 3He), E=100 MeV; measured σ(E, θ), Ay(θ); deduced one-step, multistep process contributions, other reaction mechanism features. Comparison with model predictions.
doi: 10.1103/PhysRevC.62.064605
2000DI10 Eur.Phys.J. A 7, 335 (2000) S.S.Dimitrova, D.N.Kadrev, A.N.Antonov, M.V.Stoitsov Two-Body Density Matrix for Closed s-d Shell Nuclei NUCLEAR STRUCTURE 4He, 16O, 40Ca; calculated 2-body density matrices, pair momentum distributions, correlated momentum distributions. Analytical representation, comparison with other theoretical models.
doi: 10.1007/s100500050400
2000DI22 Trans.Bulg.Nucl.Soc. 5, 175 (2000) S.S.Dimitrova, D.N.Kadrev, A.N.Antonov, M.V.Stoitsov Two-Body Nuclear Characteristics within the Jastrow Correlation Method NUCLEAR STRUCTURE 4He, 16O, 40Ca; calculated nucleon momentum distributions, short-range correlation effects, two-nucleon overlap functions. Jastrow correlation method.
2000GA01 Phys.Rev. C61, 014306 (2000) M.K.Gaidarov, K.A.Pavlova, A.N.Antonov, M.V.Stoitsov, S.S.Dimitrova, M.V.Ivanov, C.Giusti Overlap Functions in Correlation Methods and Quasifree Nucleon Knockout from 16O NUCLEAR REACTIONS 16O(e, e'n), (e, e'p), E=521 MeV; calculated σ, missing mass spectra; deduced nucleon-nucleon correlation effects. 16O(γ, p), E=72 MeV; calculated σ(E, θ); deduced meson exchange current contributions. Comparisons with data.
doi: 10.1103/PhysRevC.61.014306
2000GA42 Trans.Bulg.Nucl.Soc. 5, 188 (2000) M.K.Gaidarov, K.A.Pavlova, A.N.Antonov, S.S.Dimitrova, M.V.Stoitsov, C.Giusti, D.Van Neck, H.Muther New Theoretical Treatment of One-Nucleon Transfer Reactions NUCLEAR REACTIONS 16O(p, d), E=31.8, 45.3, 65 MeV; 16O(e, e'p), E=520.6 MeV; 16O(γ, p), E=60 MeV; calculated single-particle overlap functions, σ(θ). comparisons with data.
2000SP09 J.Phys.(London) G26, 1489 (2000) K.Spasova, S.S.Dimitrova, P.E.Hodgson The Analysing Powers of (p, 3He) Reactions NUCLEAR REACTIONS 58Ni, 90Zr, 209Bi(p, 3He), E=72 MeV; analyzed σ(θ), Ay(θ); deduced one-, two-step contributions. Feshbach-Kerman-Koonin multistep theory.
doi: 10.1088/0954-3899/26/10/304
1999AN04 Phys.Rev. C59, 722 (1999) A.N.Antonov, S.S.Dimitrova, M.V.Stoitsov, D.Van Neck, P.Jeleva Relationships between Two-Particle Overlap Functions and the Two-Body Density Matrix for Many-Fermion Systems
doi: 10.1103/PhysRevC.59.722
1999GA27 Phys.Rev. C60, 024312 (1999) M.K.Gaidarov, K.A.Pavlova, S.S.Dimitrova, M.V.Stoitsov, A.N.Antonov, D.Van Neck, H.Muther Correlation Effects in Single-Particle Overlap Functions and One-Nucleon Removal Reactions NUCLEAR STRUCTURE 16O; calculated single-particle overlap functions, spectroscopic factors, separation energies. NUCLEAR REACTIONS 16O(p, d), E=31.8, 45.3, 65 MeV; calculated σ(θ). Single-particle overlap functions, comparison with data.
doi: 10.1103/PhysRevC.60.024312
1998LA21 Int.J.Mod.Phys. E7, 485 (1998) G.A.Lalazissis, S.E.Massen, C.P.Panos, S.S.Dimitrova Information Entropy as a Measure of the Quality of a Nuclear Density Distribution NUCLEAR STRUCTURE 16O, 32S, 40Ca, 90Zr, 116Sn, 208Pb; calculated information entropy based on various density distribution models.
doi: 10.1142/S0218301398000257
1997CO05 Phys.Rev. C55, 1843 (1997) A.A.Cowley, G.J.Arendse, G.F.Steyn, J.A.Stander, W.A.Richter, S.S.Dimitrova, P.Demetriou, P.E.Hodgson Inclusive (p, 3He) Reactions on 59Co and 197Au at Incident Energies of 120, 160, and 200 MeV NUCLEAR REACTIONS 59Co, 197Au(p, 3He), E=120, 160, 200 MeV; measured σ(θ) vs E; deduced multi-step mechanisms role. Statistical multi-step direct reaction theory.
doi: 10.1103/PhysRevC.55.1843
1997DI07 J.Phys.(London) G23, 961 (1997) S.S.Dimitrova, G.Z.Krumova, P.E.Hodgson, V.Avrigeanu, A.N.Antonov (n, d)-Reactions on Medium Mass Nuclei NUCLEAR REACTIONS 58Ni, 63,65Cu(n, d), E=6-16 MeV; analyzed σ(E); deduced reaction mechanism. Hauser-Feshbach statistical model, pick-up, knockout mechanisms.
doi: 10.1088/0954-3899/23/8/010
1997DI14 J.Phys.(London) G23, 1685 (1997) S.S.Dimitrova, M.K.Gaidarov, A.N.Antonov, M.V.Stoitsov, P.E.Hodgson, V.K.Lukyanov, E.V.Zemlyanaya, G.Z.Krumova One-Nucleon Removal Reactions as a Test of Overlap Functions from the One-Body Density Matrix Calculations NUCLEAR REACTIONS 16O(p, d), E=45.34; 40Ca(p, d), E=27.5, 65 MeV; analyzed σ(θ); 40Ca(e, e'p), E not given; analyzed momentum distribution; deduced short-range correlations role. 15O, 39Ca deduced ground-state spectroscopic factors. One-body density matrix, overlap functions.
doi: 10.1088/0954-3899/23/11/016
1997HO27 Nuovo Cim. 110A, 967 (1997) P.E.Hodgson, P.Demetriou, S.S.Dimitrova Analysis of (p, α) and (p, 3He) Cross-Sections to Continuum States by the Feshbach-Kerman-Koonin Multistep Direct Theory NUCLEAR REACTIONS 93Nb, 118Sn(p, α), E=44.3 MeV; 59Co(p, α), E=120, 160 MeV; 59Co, 197Au(p, 3He), E=120, 160, 200 MeV; analyzed σ(E, θ); deduced clustering role in reaction mechanism.
doi: 10.1007/BF03035934
1997ST31 Phys.Lett. 415B, 1 (1997) M.V.Stoitsov, S.S.Dimitrova, S.Pittel, P.Van Isacker, A.Frank Analytically Solvable Mean-Field Potential for Stable and Exotic Nuclei NUCLEAR STRUCTURE 16O, 40Ca, 56,78Ni, 208Pb; calculated ground-state energies, rms radii, density distributions; 56,78Ni; calculated single-particle levels. Ginocchio potential, other potentials compared.
doi: 10.1016/S0370-2693(97)01176-3
1996AN01 Nucl.Phys. A597, 163 (1996) A.N.Antonov, S.S.Dimitrova, M.K.Gaidarov, M.V.Stoitsov, M.E.Grypeos, S.E.Massen, K.N.Ypsilantis Consistent Construction of Realistic One-Body Density Matrix in Nuclei NUCLEAR STRUCTURE 4He, 16O, 40Ca; calculated rms radii, mean kinetic energies per nucleon, nucleon momentum, local density distributions. Phenomenological approach.
doi: 10.1016/0375-9474(95)00435-1
1996KA52 Int.J.Mod.Phys. E5, 717 (1996) D.N.Kadrev, A.N.Antonov, M.V.Stoitsov, S.S.Dimitrova Natural Orbitals and Electron Elastic Magnetic Scattering by Nuclei NUCLEAR REACTIONS 17O, 41Ca(e, e), E not given; calculated transverse form factor. Coherent density fluctuation model based natural orbitals.
doi: 10.1142/S0218301396000396
1996ST04 Phys.Rev. C53, 1254 (1996) M.V.Stoitsov, S.S.Dimitrova, A.N.Antonov Restoration of Overlap Functions and Spectroscopic Factors in Nuclei NUCLEAR STRUCTURE 16O, 40Ca; calculated bound state overlap functions, separation energies, single nucleon spectroscopic factors. Jastrow correlation based one-body density matrix.
doi: 10.1103/PhysRevC.53.1254
1995AN22 J.Phys.(London) G21, 1333 (1995) A.N.Antonov, M.V.Stoitsov, M.K.Gaidarov, S.S.Dimitrova, P.E.Hodgson The Hole Spectral Function and the Relationship between Overlap Functions, Natural Orbitals and the One-Body Density Matrix in Nuclei
doi: 10.1088/0954-3899/21/10/007
1995GA37 Int.J.Mod.Phys. E4, 801 (1995) M.K.Gaidarov, A.N.Antonov, S.S.Dimitrova, M.V.Stoitsov Y-Scaling Quantities and Nucleon Correlation Effects in Nuclei NUCLEAR STRUCTURE 4He, 16O, 40Ca, 12C; calculated asymptotic scaling function F(y), binding corrections, mean kinetic, removal energies, occupation probabilities. Phenomenological approach.
doi: 10.1142/S0218301395000274
1995GA45 Bull.Rus.Acad.Sci.Phys. 59, 778 (1995) M.K.Gaidarov, A.N.Antonov, S.S.Dimitrova, M.V.Stoitsov Effect of Nucleon Correlations on y-Scaling Characteristics of Nuclei NUCLEAR STRUCTURE 4He, 12C, 16O, 40Ca; calculated asymptotic scaling function, nucleon binding energy correction, average nucleon kinetic, separation energies, filling probabilities. Jastrow correlation approach within phenomenological model.
1993ST02 Phys.Rev. C47, R455 (1993) M.V.Stoitsov, A.N.Antonov, S.S.Dimitrova Natural Orbital Representation in Nuclei NUCLEAR STRUCTURE 4He, 16O, 40Ca; calculated single particle momentum distribution, particle-, hole-state natural orbitals; deduced short range correlations role. Jastrow correlation method.
doi: 10.1103/PhysRevC.47.R455
1993ST11 Z.Phys. A345, 359 (1993) M.V.Stoitsov, A.N.Antonov, S.S.Dimitrova Short-Range Correlations and One-Body Properties of Nuclei NUCLEAR STRUCTURE 4He, 16O, 40Ca; calculated elastic form factors, local density, nucleon momentum distributions, rms radii. Short range correlations.
doi: 10.1007/BF01282896
1993ST12 Phys.Rev. C48, 74 (1993) M.V.Stoitsov, A.N.Antonov, S.S.Dimitrova Natural Orbital Representation and Short-Range Correlations in Nuclei NUCLEAR STRUCTURE 16O, 40Ca; calculated local, nucleon momentum distributions; deduced short range correlation features. Mean field approximation, Hartree-Fock approach, Skyrme forces.
doi: 10.1103/PhysRevC.48.74
1988DI07 Nucl.Phys. A485, 233 (1988) S.S.Dimitrova, I.Zh.Petkov, M.V.Stoitsov Scaling- and Antiscaling-Type Oscillations in Isoscalar and Isovector Nuclear Monopole Vibrations NUCLEAR STRUCTURE 16O, 40Ca, 90Zr, 208Pb; calculated giant monopole resonances. Adiabatic time dependent Hartree-Fock.
doi: 10.1016/0375-9474(88)90100-5
1986DI11 Z.Phys. A325, 15 (1986) S.S.Dimitrova, I.Zh.Petkov, M.V.Stoitsov A Rigorous Energy Density Functional Approach NUCLEAR STRUCTURE 16O, 40,48Ca, 90Zr, 208Pb, 56Ni; calculated density distributions, radii, binding energies. Hartree-Fock method, symmetrized Fermi-type, energy density and expectation value methods.
1986ST13 Izv.Akad.Nauk SSSR, Ser.Fiz. 50, 2071 (1986); Bull.Acad.Sci.USSR, Phys.Ser. 50, No.10, 197 (1986) M.V.Stoitsov, I.Zh.Petkov, S.S.Dimitrova Microscopic Calculations of Energies and Transition Probabilities for Giant Monopole Resonances of Nuclei NUCLEAR STRUCTURE 4He, 12C, 16O, 28Si, 32S, 40,48Ca, 56Ni, 90Zr, 132Cs, 208Pb; calculated levels, B(λ).
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