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NSR database version of May 24, 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
Citations: PlumX Metrics

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
Citations: PlumX Metrics

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
Citations: PlumX Metrics

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
Citations: PlumX Metrics

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
Citations: PlumX Metrics

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
Citations: PlumX Metrics

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
Citations: PlumX Metrics

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
Citations: PlumX Metrics

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
Citations: PlumX Metrics

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
Citations: PlumX Metrics

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
Citations: PlumX Metrics

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
Citations: PlumX Metrics

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