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NSR database version of April 29, 2024.

Search: Author = R.Roussev

Found 21 matches.

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2001MI10      Phys.Rev. C63, 044305 (2001)

N.Minkov, S.B.Drenska, P.P.Raychev, R.P.Roussev, D.Bonatsos

' Beat ' Patterns for the Odd-Even Staggering in Octupole Bands from a Quadrupole-Octupole Hamiltonian

doi: 10.1103/PhysRevC.63.044305
Citations: PlumX Metrics

2001MI26      Yad.Fiz. 64, No 6, 1173 (2001); Phys.Atomic Nuclei 64, 1098 (2001)

N.Minkov, S.B.Drenska, P.P.Raychev, R.P.Roussev, D.Bonatsos

Rotations of Nuclei with Reflection Asymmetry Correlations

doi: 10.1134/1.1383624
Citations: PlumX Metrics

2000BO34      Phys.Rev. C62, 024301 (2000); Erratum Phys.Rev. C63, 049902 (2001)

D.Bonatsos, C.Daskaloyannis, S.B.Drenska, N.Karoussos, N.Minkov, P.P.Raychev, R.P.Roussev

ΔI = 1 Staggering in Octupole Bands of Light Actinides: ' Beat ' Patterns

NUCLEAR STRUCTURE ^218,220,222Rn, ^{218,220,222,224,226}Ra, ^{220,222,224,226,228}Th; analyzed octupole bands transition energies; deduced beat patterns, possible mechanisms. Predictions of algebraic models discussed.

doi: 10.1103/PhysRevC.62.024301
Citations: PlumX Metrics

2000BO44      Trans.Bulg.Nucl.Soc. 5, 18 (2000)

D.Bonatsos, N.Karoussos, C.Daskaloyannis, S.B.Drenska, N.Minkov, P.P.Raychev, R.P.Roussev, J.Maruani

Symmetries in Nuclei, Molecules and Atomic Clusters

2000MI18      Phys.Rev. C61, 064301 (2000)

N.Minkov, S.B.Drenska, P.P.Raychev, R.P.Roussev, D.Bonatsos

Ground-γ Band Mixing and Odd-Even Staggering in Heavy Deformed Nuclei

NUCLEAR STRUCTURE ¹⁵⁶Gd, ^156,160,162Dy, ^162,164,166Er, ¹⁷⁰Yb, ^228,232Th; analyzed vibrational bands odd-even staggering effect, role of band mixing. Vector boson model with SU(3) dynamical symmetry.

doi: 10.1103/PhysRevC.61.064301
Citations: PlumX Metrics

2000MI29      Trans.Bulg.Nucl.Soc. 5, 192 (2000)

N.Minkov, S.Drenska, P.Raychev, R.Roussev, D.Bonatsos

Ground-γ Band Mixing and ΔL = 1 Staggering in Heavy Deformed Nuclei

NUCLEAR STRUCTURE ^164,166Er; analyzed rotational band level staggering; deduced ground-γ band mixing. Vector boson model.

1999MI23      Phys.Rev. C60, 034305 (1999)

N.Minkov, S.B.Drenska, P.P.Raychev, R.P.Roussev, D.Bonatsos

Ground-γ Band Coupling in Heavy Deformed Nuclei and SU(3) Contraction Limit

NUCLEAR STRUCTURE ^152,154Sm, ^{154,156,158,160}Gd, ^{158,160,162,164}Dy, ^{162,164,166,168,170}Er, ^{168,170,172,174,176}Yb, ^174,178Hf, ^182,184,186W, ^230,232Th, ^234,238U; analyzed ground, vibrational bands levels, interband, intraband transitions B(E2); deduced band mixing features. Vector-boson model with SU(3) dynamical symmetry.

doi: 10.1103/PhysRevC.60.034305
Citations: PlumX Metrics

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
Citations: PlumX Metrics

1997MI10      Phys.Rev. C55, 2345 (1997)

N.Minkov, S.B.Drenska, P.P.Raychev, R.P.Roussev, D.Bonatsos

Broken SU(3) Symmetry in Deformed Even-Even Nuclei

NUCLEAR STRUCTURE ¹⁶⁴Dy, ^164,166,168Er, ^168,172Yb, ^176,178Hf, ²³⁸U; calculated levels, transition ratios, energy rms factor. Collective vector-boson model.

doi: 10.1103/PhysRevC.55.2345
Citations: PlumX Metrics

1996MI19      J.Phys.(London) G22, 1633 (1996)

N.Minkov, S.B.Drenska, P.P.Raychev, R.P.Roussev, D.Bonatsos

The SU(q)(2) Rotator Model in Excited Collective Bands of Even Deformed Nuclei

NUCLEAR STRUCTURE ^152,154Sm, ^{154,156,158,160}Gd, ^160,162,164Dy, ^{160,162,164,166,168,170}Er, ^{166,168,170,172}Yb, ^{172,174,176,178,180}Hf, ^{178,180,182,184}W, ²³²Th, ^232,234U; analyzed (β)-, (γ)-bands levels, B(λ) data. Rotator SU(q)(2) model.

doi: 10.1088/0954-3899/22/11/010
Citations: PlumX Metrics

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
Citations: PlumX Metrics

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
Citations: PlumX Metrics

1995MI08      J.Phys.(London) G21, 557 (1995)

N.Minkov, P.P.Raychev, R.P.Roussev

Nuclear Deformation in the SU(q)(2) Rotor Model

NUCLEAR STRUCTURE A=154-238; calculated B(λ) vs parameter τ; deduced correlation. Rotational nuclei, Gd, Yb, Th, U isotopes, SU(q)(2) rotor model.

doi: 10.1088/0954-3899/21/4/007
Citations: PlumX Metrics

1994BO21      Phys.Rev. C50, 497 (1994)

D.Bonatsos, C.Daskaloyannis, A.Faessler, P.P.Raychev, R.P.Roussev

Quantum Algebraic Description of Vibrational and Transitional Nuclear Spectra

NUCLEAR STRUCTURE ^150,152,154Sm, ^152,154,158Gd, ^154,156,162Dy, ^156,158,166Er; calculated levels. Quantum algebraic description, SU(q)(2) model.

doi: 10.1103/PhysRevC.50.497
Citations: PlumX Metrics

1994MI14      J.Phys.(London) G20, L67 (1994)

N.Minkov, R.P.Roussev, P.P.Raychev

Shell Correlations in the SU(q)(2) Rotor Model

NUCLEAR STRUCTURE ¹⁴⁶Gd, ^{170,172,174,176,178}Hf, ^164,166Er, ^{170,172,174,168,176}Yb, ^228,230,232Th, ^{230,232,234,236,238}U, ^{236,238,240,242,244}Pu, ²⁴⁸Cm; calculated spectra; deduced nucleon pairs number, quantum algebraic parameter τ correlation. Data comparison, SU(q)(2) rotor model.

doi: 10.1088/0954-3899/20/6/002
Citations: PlumX Metrics

1991BO11      J.Phys.(London) G17, L67 (1991)

D.Bonatsos, S.B.Drenska, P.P.Raychev, R.P.Roussev, Yu.F.Smirnov

Description of Superdeformed Bands by the Quantum Algebra SU(q)(2)

NUCLEAR STRUCTURE ^134,136Nd, ¹⁵⁰Gd, ^162,152Dy, ^192,194Hg, ¹⁷⁴Yb, ²⁴⁸Cm; analyzed level data; deduced superdeformed band features. Quantum SU(q)(2) algebra.

doi: 10.1088/0954-3899/17/5/003
Citations: PlumX Metrics

1990BO47      Phys.Lett. 251B, 477 (1990)

D.Bonatsos, E.N.Argyres, S.B.Drenska, P.P.Raichev, R.P.Roussev, Yu.F.Smirnov

SU(q)(2) Description of Rotational Spectra and Its Relation to the Variable Moment of the Inertia Model

NUCLEAR STRUCTURE ¹⁷⁶Yb, ¹⁷⁸Hf, ²³²U, ²³⁸Pu; calculated levels. SU(q)(2) description.

doi: 10.1016/0370-2693(90)90782-2
Citations: PlumX Metrics

1990RA19      J.Phys.(London) G16, L137 (1990)

P.P.Raichev, R.P.Roussev, Yu.F.Smirnov

The Quantum Algebra SU(q)(2) and Rotational Spectra of Deformed Nuclei

NUCLEAR STRUCTURE ¹⁶⁸Er, ¹⁷⁶Yb, ²⁴⁴Pu; calculated rotational level energies. q-analog of SU(2).

doi: 10.1088/0954-3899/16/8/006
Citations: PlumX Metrics

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
Citations: PlumX Metrics

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
Citations: PlumX Metrics

Note: The following list of authors and aliases matches the search parameter R.Roussev: , R.P.ROUSSEV