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NSR database version of April 29, 2024.

Search: Author = A.Georgieva

Found 25 matches.

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2020GE05      Bull.Rus.Acad.Sci.Phys. 84, 1027 (2020)

A.I.Georgieva, K.P.Drumev, V.P.Garistov

Dynamical Symmetries in Shell and Collective Models of Nuclear Structure

NUCLEAR STRUCTURE 152Sm; calculated energy levels, J, π, excitation energies of the ground state band. Comparison with available data.

doi: 10.3103/S1062873820080134
Citations: PlumX Metrics


2012DA19      J.Phys.:Conf.Ser. 366, 012009 (2012)

J.Darai, J.Cseh, N.V.Antonenko, G.G.Adamian, A.Georgieva

Dipole and quadrupole collectivity in atomic nuclei

NUCLEAR STRUCTURE 28Si, 36Ar, 56Ni; calculated deformation, superdeformation, hyperdeformation and nuclei cluster composition using symmetry considerations.

doi: 10.1088/1742-6596/366/1/012009
Citations: PlumX Metrics


2012DR14      J.Phys.:Conf.Ser. 366, 012015 (2012)

K.P.Drumev, A.I.Georgieva, J.P.Draayer

Extended (pseudo-)SU(3) models for nuclear structure

NUCLEAR STRUCTURE 20Ne, 60Zn; calculated gs energy, mass excess, pairing, deformation using extended (pseudo-)SU(3) model.

doi: 10.1088/1742-6596/366/1/012015
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2010GA35      J.Phys.:Conf.Ser. 205, 012031 (2010)

V.P.Garistov, A.I.Georgieva, A.Solnyshkin, J.Adam, D.Bogachenko, O.Egorov, A.Islamov, V.Silaev

On the 0+ excited states in even-even deformed nuclei

NUCLEAR STRUCTURE 152Gd, 162Dy, 176Hf, 180W; calculated 0+ states energies, density distributions, deformation, inertia moment using classification of states according to their number of bosons. 236U; calculated yrast states as crossing of three rotational bands, B(E2) using rigid rotor and IVBM.

RADIOACTIVITY 160Dy(EC); analyzed, calculated 0+ levels, γ transitions, Eγ, Iγ; deduced existence of 681 keV 0+ state.

doi: 10.1088/1742-6596/205/1/012031
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2010GE06      Physics of Part.and Nuclei 41, 1105 (2010)

A.I.Georgieva, M.I.Ivanov, S.L.Drenska, K.D.Sviratcheva, J.P.Draayer

Dynamical symmetries in contemporary nuclear structure applications

NUCLEAR STRUCTURE 40,42,44,46,48Ca, 42,44,46,48Sc, 44,46,48Ti, 46,48V, 48Cr; analyzed nuclear properties; deduced classification scheme. Group theory.

doi: 10.1134/S1063779610070270
Citations: PlumX Metrics


2009GA11      Phys.Rev. C 79, 044322 (2009)

H.G.Ganev, A.I.Georgieva, S.Brant, A.Ventura

New description of the doublet bands in doubly odd nuclei

NUCLEAR STRUCTURE 126Pr, 132La, 134Pr; analyzed ΔI=1 doublet chiral bands, level energies, B(E2), B(M1) using interacting boson vector model. 124,125,134,135Ce, 132Ba, 133La; calculated level energies using interacting boson vector model (IVBM). Comparison with experimental data.

doi: 10.1103/PhysRevC.79.044322
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2007GA52      Phys.Rev. C 76, 054322 (2007)

H.G.Ganev, A.I.Georgieva

Transition probabilities in the U(6) limit of the symplectic interacting vector boson model

NUCLEAR STRUCTURE 156Dy, 232Th, 236U; calculated ground-state bands, B(E2) values using U(6) limit, comparison with experiment.

doi: 10.1103/PhysRevC.76.054322
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2005GA28      Phys.Rev. C 72, 014314 (2005)

H.G.Ganev, A.I.Georgieva, J.P.Draayer

Six-dimensional Davidson potential as a dynamical symmetry of the symplectic interacting vector boson model

NUCLEAR STRUCTURE 150,152Sm, 168Yb, 232Th; calculated rotational band level energies. Six-dimensional Davidson potential, interacting vector boson model, comparison with data.

doi: 10.1103/PhysRevC.72.014314
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2005PO22      Eur.Phys.J. A 25, Supplement 1, 451 (2005)

G.Popa, A.Aprahamian, A.Georgieva, J.P.Draayer

Systematics in the structure of low-lying, non-yrast band-head configurations of strongly deformed nuclei

NUCLEAR STRUCTURE 152Nd, 156Sm, 156,160Gd, 160,164Dy, 164,168Er, 168,172Yb, 172,176Hf; calculated band-head energies, collective properties. Pseudo-SU(3) model.

doi: 10.1140/epjad/i2005-06-140-y
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2005SO15      Phys.Rev. C 72, 064321 (2005)

A.A.Solnyshkin, V.P.Garistov, A.Georgieva, H.Ganev, V.V.Burov

Analysis of new experimental data on the 160Dy spectrum with the symplectic interacting vector boson model

NUCLEAR STRUCTURE 160Dy; analyzed levels, J, π, rotational bands. Interacting vector boson model.

doi: 10.1103/PhysRevC.72.064321
Citations: PlumX Metrics


2005SV02      Phys.Rev. C 72, 054302 (2005)

K.D.Sviratcheva, A.I.Georgieva, J.P.Draayer

Isospin symmetry breaking in an algebraic pairing Sp(4) model

NUCLEAR STRUCTURE 36Ar, 44,46,48Ti, 46,48V, 46,48Cr, 48Mn, 48Fe; calculated overlap of isobaric analog states due to pairing correlations. 44,46,48V, 46,48Cr, 46,48,50Mn, 48,50Fe, 48,50,52Co; calculated isospin mixing for non-analog β-decay transitions. Dynamical Sp(4) symmetry, isospin symmetry breaking, proton-neutron interaction, isovector and isoscalar pairing.

doi: 10.1103/PhysRevC.72.054302
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2004GA03      Phys.Rev. C 69, 014305 (2004)

H.Ganev, V.P.Garistov, A.I.Georgieva

Description of the ground and octupole bands in the symplectic extension of the interacting vector boson model

NUCLEAR STRUCTURE 224,226Ra, 222,224,226,228,232Th, 234,236,238U, 168Yb, 152Sm; analyzed ground-state and octupole rotational band energies; deduced parameters. Symplectic extension of interacting vector boson model.

doi: 10.1103/PhysRevC.69.014305
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2004GA50      Phys.Rev. C 70, 054317 (2004)

H.G.Ganev, V.P.Garistov, A.I.Georgieva, J.P.Draayer

Energy systematics of low-lying collective states within the framework of the interacting vector boson model

NUCLEAR STRUCTURE 144Nd, 148Sm, 168Er, 178Hf, 154Gd; calculated level energies; deduced collective states systematic features. Interacting vector boson model.

doi: 10.1103/PhysRevC.70.054317
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2004PO12      Phys.Rev. C 69, 064307 (2004)

G.Popa, A.Georgieva, J.P.Draayer

Systematics in the structure of low-lying, nonyrast bandhead configurations of strongly deformed nuclei

NUCLEAR STRUCTURE 152Nd, 156Sm, 160Gd, 164Dy, 168Er, 172Yb, 176Hf; calculated ground and excited states energies, configurations. Pseudo-SU(3) model, F-spin classification.

doi: 10.1103/PhysRevC.69.064307
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2004SV01      Phys.Rev. C 69, 024313 (2004)

K.D.Sviratcheva, A.I.Georgieva, J.P.Draayer

Staggering behavior of 0+ state energies in the Sp(4) pairing model

NUCLEAR STRUCTURE A=40-100; calculated 0+ level energies, pairing interaction effects, two-proton separation energies, staggering behavior. Dynamical Sp(4) symmetry, proton-neutron interaction, isovector and isoscalar pairing.

doi: 10.1103/PhysRevC.69.024313
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2004SV03      Phys.Rev.Lett. 93, 152501 (2004)

K.D.Sviratcheva, C.Bahri, A.I.Georgieva, J.P.Draayer

Physical Significance of q Deformation and Many-Body Interactions in Nuclei

NUCLEAR STRUCTURE A=40-100; analyzed pairing correlations, quantum deformation.

doi: 10.1103/PhysRevLett.93.152501
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2004SV04      Phys.Rev. C 70, 064302 (2004)

K.D.Sviratcheva, A.I.Georgieva, J.P.Draayer

Dynamical symmetry of isobaric analog 0+ states in medium mass nuclei

NUCLEAR STRUCTURE 42,44,46Ca, 42,50Ti, 44,52Cr, 46,54Fe; calculated level energies. 36Ar, 44,46,48Ti, 46,48V, 46,48,50Cr, 48,50,52Fe, 48,50Mn; A=32-100; calculated isobaric analog states energies, pairing interaction, symmetry and Wigner energy. Dynamical Sp(4) symmetry, comparison with data.

doi: 10.1103/PhysRevC.70.064302
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2003SV01      J.Phys.(London) G29, 1281 (2003)

K.D.Sviratcheva, A.I.Georgieva, J.P.Draayer

An algebraic pairing model with Sp(4) symmetry and its deformation

NUCLEAR STRUCTURE 40Ca, 42Sc, 44Ti, 46V, 48Cr, 50Mn, 52Fe, 54Co, 56Ni; calculated 0+ level energies, pairing correlations, deformation effects. Symplectic dynamical symmetry.

doi: 10.1088/0954-3899/29/6/325
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2002DR04      Phys.Rev. C65, 054303 (2002)

S.Drenska, A.Georgieva, N.Minkov

Staggering Behavior of the Low-Lying Excited States of Even-Even Nuclei in a Sp(4, R) Classification Scheme

NUCLEAR STRUCTURE Z=50-82; analyzed level energies, staggering behavior; deduced mechanisms, classification scheme.

doi: 10.1103/PhysRevC.65.054303
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2002DR10      Prog.Theor.Phys.(Kyoto), Suppl. 146, 555 (2002)

S.Drenska, A.Georgieva, N.Minkov

Staggering Behavior of the First Excited 2+ States of Even-Even Nuclei in a Sp(4, R) Classification Scheme

doi: 10.1143/PTPS.146.555
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1995DR06      Phys.Rev. C52, 1853 (1995)

S.Drenska, A.Georgieva, V.Gueorguiev, R.Roussev, P.Raychev

Unified Description of the Low Lying States of the Ground Bands of Even-Even Nuclei

NUCLEAR STRUCTURE A=58-258; 144Nd, 148Sm, 152Gd, 156Dy, 160Er, 164Yb, 168Hf, 172W, 176Os; calculated levels; deduced model parameters. Generalized dynamical symmetry group.

doi: 10.1103/PhysRevC.52.1853
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1995DR07      Int.J.Mod.Phys. E4, 123 (1995)

S.Drenska, A.Georgieva, M.Ivanov, S.Mavrodiev, R.Roussev, P.Raychev

Ground Band Energies of Transitional Nuclei II

NUCLEAR STRUCTURE A=56-254; calculated transition nuclei ground band level energies, five major shells. Unified description.

doi: 10.1142/S0218301395000043
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1995GE09      Phys.Rev. C52, 2131 (1995)

A.I.Georgieva, R.P.Roussev, P.P.Raychev, M.V.Stoitsov, S.Pittel, J.Dukelsky

Baryon Mappings Applied to the Three-Color Delta Model

doi: 10.1103/PhysRevC.52.2131
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1989GE07      Int.J.Theor.Phys. 28, 769 (1989)

A.Georgieva, M.Ivanov, P.Raichev, R.Roussev

Classification of the Even-Even Nuclei in Symplectic Multiplets

NUCLEAR STRUCTURE A=42-258; analyzed 2+ level data; deduced classification scheme. Boson representation of the Sp(4, R) algebra.

doi: 10.1007/BF00669821
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1983GE05      J.Phys.(London) G9, 521 (1983)

A.Georgieva, P.Raichev, R.Roussev

Rotational Limit of the Interacting Two-Vector-Boson Model

NUCLEAR STRUCTURE 156Gd, 170Er, 234U; calculated levels, B(E2) ratios. Interacting two-vector boson model, rotational limit.

doi: 10.1088/0305-4616/9/5/005
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Note: The following list of authors and aliases matches the search parameter A.Georgieva: , A.I.GEORGIEVA