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Search: Author = N.B.Shulgina

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2023NI12      Phys.Atomic Nuclei 86, 923 (2023)

E.Yu.Nikolskii, S.A.Krupko, I.A.Muzalevskii, A.A.Bezbakh, R.Wolski, C.Yuan, S.G.Belogurov, D.Biare, V.Chudoba, A.S.Fomichev, E.M.Gazeeva, M.S.Golovkov, A.V.Gorshkov, L.V.Grigorenko, G.Kaminski, M.Khirk, O.Kiselev, D.A.Kostyleva, B.Mauyey, I.Mukha, Yu.L.Parfenova, A.M.Quynh, S.I.Sidorchuk, P.G.Sharov, N.B.Shulgina, R.S.Slepnev, S.V.Stepantsov, A.Swiercz, G.M.Ter-Akopian

Study of Proton and Deuteron Pickup Reactions 2H(10Be, 3He)9Li and 2H(10Be, α)8Li with 44 A MeV 10Be Radioactive Beam at ACCULINNA-2 Fragment Separator

NUCLEAR REACTIONS 2H(10Be, 3He), (10Be, α), E=42 MeV/nucleon; measured reaction products; deduced σ(θ), J, π, spectroscopic factors, clustering. Comparison with the FRESCO calculations. The new fragment separator ACCULINNA-2, the Flerov Laboratory of Nuclear Reactions (JINR).

doi: 10.1134/S1063778824010381
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2022NI08      Phys.Rev. C 105, 064605 (2022)

E.Yu.Nikolskii, I.A.Muzalevskii, A.A.Bezbakh, V.Chudoba, S.A.Krupko, S.G.Belogurov, D.Biare, A.S.Fomichev, E.M.Gazeeva, A.V.Gorshkov, L.V.Grigorenko, G.Kaminski, M.Khirk, O.Kiselev, D.A.Kostyleva, M.Yu.Kozlov, B.Mauyey, I.Mukha, Yu.L.Parfenova, W.Piatek, A.M.Quynh, V.N.Schetinin, A.Serikov, S.I.Sidorchuk, P.G.Sharov, N.B.Shulgina, R.S.Slepnev, S.V.Stepantsov, A.Swiercz, P.Szymkiewicz, G.M.Ter-Akopian, R.Wolski, B.Zalewski, M.V.Zhukov

6H states studied in the 2H(8He, 4He) reaction and evidence of an extremely correlated character of the 5H ground state

NUCLEAR REACTIONS 2H(8He, α)6H, E=26 MeV/nucleon, [secondary 8He beam produced in 9Be(11B, X), E=33.4 MeV/nucleon reaction, fragments separated using ACCULINNA-2 separator at FLNR-JINR-Dubna facility]; measured reaction products, Eα, Iα, neutrons, α(3H)-coin, α(3H)n-coin, angular distributions and TOF using ΔE-E-E telescopes of CsI(Tl) scintillators, position-sensitive chambers, and a neutron wall of 48 stilbene-crystal modules; analyzed resonance energy profiles and the momentum distributions of fragments of the sequential 6H to 5H(g.s.)+n to 3H+3n decay by direct four-body-decay and sequential-emission mechanisms; deduced missing mass spectrum, evidence for dineutron correlations in the decay of 5H g.s. 6H; deduced broad resonant states, widths, decay modes of resonances, energy distributions of 3H fragments and neutrons emitted by 6H states, differential cross section, no evidence for a 2.6-2.9 MeV resonance reported earlier; discussed energy of the ground state of 6H with no definite conclusion. Monte Carlo simulations. 2H(10Be, α)8Li, E=42 MeV/nucleon; reaction used for calibration of 6H spectrum.

doi: 10.1103/PhysRevC.105.064605
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2021MU04      Phys.Rev. C 103, 044313 (2021)

I.A.Muzalevskii, A.A.Bezbakh, E.Yu.Nikolskii, V.Chudoba, S.A.Krupko, S.G.Belogurov, D.Biare, A.S.Fomichev, E.M.Gazeeva, A.V.Gorshkov, L.V.Grigorenko, G.Kaminski, O.Kiselev, D.A.Kostyleva, M.Yu.Kozlov, B.Mauyey, I.Mukha, Yu.L.Parfenova, W.Piatek, A.M.Quynh, V.N.Schetinin, A.Serikov, S.I.Sidorchuk, P.G.Sharov, N.B.Shulgina, R.S.Slepnev, S.V.Stepantsov, A.Swiercz, P.Szymkiewicz, G.M.Ter-Akopian, R.Wolski, B.Zalewski, M.V.Zhukov

Resonant states in 7H: Experimental studies of the 2H(8He, 3He) reaction

NUCLEAR REACTIONS 2H(8He, 3He)7H, E=26 MeV/nucleon; 2H(10Be, 3He)9Li, [secondary 8He and 10Be beams from 9Be(11B, X), E=33.4 MeV/nucleon, and 9Be(15N, X), E=49.7 MeV/nucleon, respectively, followed by fragment separation by ACCULINNA-2 fragment separator at the U-400M cyclotron of FLNR, JINR, Dubna]; measured recoil 3He particles, (3He)(3H)- and (3He)n-coin using two identical ΔE-E-E single-sided silicon-detector telescopes for 3He, a square array of 16 CsI(Tl) crystals for tritons from the decay of 7H, and a neutron spectrometer of 48 organic scintillator modules for the (10Be, 3He) reaction. 7H; deduced missing mass spectra, center-of-mass angular distributions, levels, resonances, J, π, widths. 9Li; deduced excitation spectrum. Comparison with previous experimental results. Angular distributions analyzed using DWBA/FRESCO calculations.

doi: 10.1103/PhysRevC.103.044313
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2020GR09      Phys.Rev. C 102, 014611 (2020)

L.V.Grigorenko, N.B.Shulgina, M.V.Zhukov

High-precision studies of the soft dipole mode in two-neutron halo nuclei: The 6He case

NUCLEAR STRUCTURE 6He; calculated ground state wavefunctions, E1 sum rule, soft dipole mode (SDM) E1 strength function of the transition to the 1+ continuum 4He+n+n state, energy-angular three-body correlation contours for 6He SDM transitions, energy and angular distributions for products of the E1 dissociations characteristics of the 5He p3/2 resonance; analyzed sensitivity of the results to the 6He ground-state structure and to final-state interactions. Large-basis hyperspherical harmonics formalism. Comparison with other theoretical calculations, and with experimental data.

doi: 10.1103/PhysRevC.102.014611
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2020GR11      Phys.Lett. B 807, 135557 (2020)

L.V.Grigorenko, N.B.Shulgina, M.V.Zhukov

Three-body vs. dineutron approach to two-neutron radiative capture in 6He

NUCLEAR REACTIONS 4He(2n, γ)6He, E<1 MeV; calculated low-energy asymptotics of the E1 strength functions, capture rates.

doi: 10.1016/j.physletb.2020.135557
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2018PA43      Phys.Rev. C 98, 034608 (2018)

Yu.L.Parfenova, L.V.Grigorenko, I.A.Egorova, N.B.Shulgina, J.S.Vaagen, M.V.Zhukov

From Coulomb excitation cross sections to nonresonant astrophysical rates in three-body systems: The 17Ne case

NUCLEAR REACTIONS C, Si, Pb(17Ne, X), E=500 MeV/nucleon; calculated σ, and 17Ne E1 strength function extrapolated to astrophysical energies, eikonal model cross sections of the nuclear, E1 nuclear, and E1 Coulomb dissociation on Pb target, EMD cross sections. 15O(2p, γ)17Ne, T9=0.02-10; calculated astrophysical non-resonant radiative capture rate. Three-body hyperspherical harmonic (HH) method. Comparison with experimental data.

doi: 10.1103/PhysRevC.98.034608
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2018SH22      Phys.Rev. C 97, 064307 (2018)

N.B.Shulgina, S.N.Ershov, J.S.Vaagen, M.V.Zhukov

Superhalo of 22C reexamined

NUCLEAR STRUCTURE 22C; calculated two-neutron removal energy, matter radius, two neutron halo structure, B(E1), and correlation density by three-body model using hyperspherical harmonics method. Comparison with available theoretical and experimental results.

NUCLEAR REACTIONS 12C, 208Pb(22C, 20C), E=240 MeV/nucleon; calculated fragmentation σ on C and Pb targets, and Coulomb dissociation σ on Pb target.

doi: 10.1103/PhysRevC.97.064307
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2010JO07      Nucl.Phys. A847, 66 (2010)

H.T.Johansson, Yu.Aksyutina, T.Aumann, K.Boretzky, M.J.G.Borge, A.Chatillon, L.V.Chulkov, D.Cortina-Gil, U.Datta Pramanik, H.Emling, C.Forssen, H.O.U.Fynbo, H.Geissel, G.Ickert, B.Jonson, R.Kulessa, C.Langer, M.Lantz, T.LeBleis, K.Mahata, M.Meister, G.Munzenberg, T.Nilsson, G.Nyman, R.Palit, S.Paschalis, W.Prokopowicz, R.Reifarth, A.Richter, K.Riisager, G.Schrieder, N.B.Shulgina, H.Simon, K.Summerer, O.Tengblad, H.Weick, M.V.Zhukov

Three-body correlations in the decay of 10He and 13Li

NUCLEAR REACTIONS 1H(11Li, 2n2p), E=280 MeV/nucleon; 1H(14Be, 2n2p), E=304 MeV/nucleon; measured fragment spectra, neutron spectra, (fragment)(neutron)-coin. 11Li, 14Be, 10He, 13Li; deduced energy, angular three-body correlation coefficients, reaction mechanism features including final state interactions. Comparison with three-body wave function analysis.

doi: 10.1016/j.nuclphysa.2010.07.002
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2009SH25      Nucl.Phys. A825, 175 (2009)

N.B.Shulgina, B.Jonson, M.V.Zhukov

11Li structure from experimental data

NUCLEAR REACTIONS 12C(11Li, X), E=264, 790 MeV/nucleon; calculated one-/two-neutron stripping and removal σ, σ(E), related quantities using a three-body model. Comparison with data.

NUCLEAR STRUCTURE 11Li; calculated wavefunction, radii, related quantities using a three-body model.

doi: 10.1016/j.nuclphysa.2009.04.014
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2006GR20      Phys.Lett. B 641, 254 (2006)

L.V.Grigorenko, K.Langanke, N.B.Shulgina, M.V.Zhukov

Soft dipole mode in 17Ne and the astrophysical 2p capture on 15O

NUCLEAR STRUCTURE 16F, 17Ne; calculated level energies, E1 transitions strength function. Three-body model.

NUCLEAR REACTIONS Au, Pb(17Ne, 15OX), E=50, 240, 500 MeV/nucleon; calculated two-proton removal σ. Two-proton capture rates in astrophysical conditions discussed.

doi: 10.1016/j.physletb.2006.08.054
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2003FO07      Phys.Rev. C 67, 045801 (2003)

C.Forssen, N.B.Shul'gina, M.V.Zhukov

Radiative capture and electromagnetic dissociation involving loosely bound nuclei: The 8B example

NUCLEAR STRUCTURE 8B; calculated wavefunctions, E1 strength distribution. Three-body analytical model.

NUCLEAR REACTIONS Pb(8B, p7Be), E=82.7 MeV/nucleon; calculated electromagnetic dissociation σ(E, θ), electric multipole contributions, astrophysical S-factor. Analytical model.

doi: 10.1103/PhysRevC.67.045801
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2003FO18      Nucl.Phys. A718, 434c (2003)

C.Forssen, V.D.Efros, N.B.Shul'gina, M.V.Zhukov

Analytical studies of 8B electromagnetic dissociation

NUCLEAR REACTIONS Pb(8B, p7Be), E=936 MeV/nucleon; calculated σ, dependence on radius parameter. Analytical model.

doi: 10.1016/S0375-9474(03)00823-6
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2002FO13      Phys.Lett. 549B, 79 (2002)

C.Forssen, N.B.Shul'gina, M.V.Zhukov

Analytical Approach to Electromagnetic Processes in Loosely bound Nuclei: Application to 8B

NUCLEAR STRUCTURE 8B; calculated wave functions, E1 strength function. Analytical approach.

NUCLEAR REACTIONS Pb(8B, X), E=82.7 MeV/nucleon; calculated Coulomb dissociation σ(E), electric dipole contribution. Analytical approach, comparison with data.

doi: 10.1016/S0370-2693(02)02895-2
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2000GR03      Nucl.Phys. A665, 105 (2000)

L.V.Grigorenko, N.B.Shulgina, M.V.Zhukov

Three-Cluster States in the Spectrum of 8Be (1) Structure and β-Decay of 8B to 16.6 MeV State

NUCLEAR STRUCTURE 8Be; calculated three-cluster states energy, J, π. Hyperspherical harmonic method.

RADIOACTIVITY 8B(β+); calculated Gamow-Teller and Fermi matrix elements for transitions to three-cluster states.

doi: 10.1016/S0375-9474(99)00420-0
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2000GR07      Nucl.Phys. A671, 136 (2000)

L.V.Grigorenko, N.B.Shulgina, B.V.Danilin

Three-Cluster States in the Spectrum of 8Be. (II). Interaction of 2+ Doublet with α-α Continuum

NUCLEAR STRUCTURE 8Be; calculated level properties, role of α-α continuum. Coulomb mixing, resonant interference.

doi: 10.1016/S0375-9474(99)00831-3
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2000MA62      Phys.Rev. C62, 034308 (2000)

K.Markenroth, L.Axelsson, S.Baxter, M.J.G.Borge, C.Donzaud, S.Fayans, H.O.U.Fynbo, V.Z.Goldberg, S.Grevy, D.Guillemaud-Mueller, B.Jonson, K.-M.Kallman, S.Leenhardt, M.Lewitowicz, T.Lonnroth, P.Manngard, I.Martel, A.C.Mueller, I.Mukha, T.Nilsson, G.Nyman, N.A.Orr, K.Riisager, G.V.Rogachev, M.-G.Saint-Laurent, I.N.Serikov, N.B.Shulgina, O.Sorlin, M.Steiner, O.Tengblad, M.Thoennessen, E.Tryggestad, W.H.Trzaska, F.Wenander, J.S.Winfield, R.Wolski

Crossing the Dripline to 11N using Elastic Resonance Scattering

NUCLEAR REACTIONS 1H(10C, 10C), E=9 MeV/nucleon; measured particle spectra. 11N deduced resonances J, π, widths. Elastic resonance scattering, secondary beam from 12C fragmentation.

doi: 10.1103/PhysRevC.62.034308
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2000SH23      Phys.Rev. C62, 014312 (2000)

N.B.Shulgina, B.V.Danilin, L.V.Grigorenko, M.V.Zhukov, J.M.Bang

Nuclear Structure of 5H in a Three-Body 3H + n + n Model

NUCLEAR STRUCTURE 5He; calculated levels energies, J, π, widths. Three-body model.

doi: 10.1103/PhysRevC.62.014312
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1999GR21      Phys.Rev. C60, 044312 (1999)

L.V.Grigorenko, B.V.Danilin, V.D.Efros, N.B.Shulgina, M.V.Zhukov

Extended Three-Cluster Model with Two-Cluster Long-Range Correlations: Application to the 8Li, 8B Nuclei

NUCLEAR STRUCTURE 8Li, 8B; calculated binding energies, radii, levels spectroscopic factors. Three-cluster model, comparison with data.

doi: 10.1103/PhysRevC.60.044312
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1998GR07      Phys.Rev. C57, R2099 (1998)

L.V.Grigorenko, B.V.Danilin, V.D.Efros, N.B.Shulgina, M.V.Zhukov

Structure of the 8Li and 8B Nuclei in an Extended Three-Body Model and Astrophysical S17 Factor

NUCLEAR STRUCTURE 8Li, 8B; calculated levels, radii, quadrupole moments, wavefunctions. Three-body model. Comparison with data.

NUCLEAR REACTIONS 7Be(p, γ), E not given; calculated astrophysical S-factor. Three-body model, asymptotic normalization coefficients.

doi: 10.1103/PhysRevC.57.R2099
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1998GR17      Yad.Fiz. 61, No 9, 1582 (1998); Phys.Atomic Nuclei 61, 1472 (1998)

L.V.Grigorenko, N.B.Shulgina

Parity-Violating 6Li(0+ 1) → α + d Decay and 6Li(0+ 1) → α + d + γ M1 Transtion

NUCLEAR STRUCTURE 6Li; calculated excited states parity-violating decay widths to α + d continuum; deduced short-range correlations role. Three-body wavefunction, optical model.

1997SH19      Nucl.Phys. A619, 143 (1997)

N.B.Shulgina, L.V.Grigorenko, M.V.Zhukov, J.M.Bang

8He β-Decay to the 6Li + n + n Channel

RADIOACTIVITY 8He(β-); calculated 6Li, 2n-spectra, Gamow-Teller strength following β-decay; deduced implications for 8Li Gamow-Teller sum rule. Cluster-orbital shell-model approximation.

doi: 10.1016/S0375-9474(97)00151-6
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1996BA86      Yad.Fiz. 59, No 11, 1940 (1996); Phys.Atomic Nuclei 59, 1871 (1996)

A.L.Barabanov, Yu.V.Gaponov, B.V.Danilin, N.B.Shulgina

Muon Capture by Oriented Nuclei: New possibilities for studing induced pseudoscalar interaction

1996DA31      Bull.Rus.Acad.Sci.Phys. 60, 21 (1996)

B.V.Danilin, M.V.Zhukov, N.B.Shulgina, I.J.Thompson, J.M.Bang, F.A.Gareev, J.S.Vaagen

Nuclei with Two-Particle Neutron Halo: Theory and modern experiment

RADIOACTIVITY 6Li(β+); calculated Gamow-Teller transition strengths vs fragment energy. Hyperspherical harmonics method.

NUCLEAR STRUCTURE 6He, 11Li; calculated three-particle strength function vs fragment energy. Hyperspherical harmonics method.

NUCLEAR REACTIONS 6Li(p, n), (n, p), (p, p'), E not given; calculated σ(θ) vs momentum transfer. Hyperspherical harmonics methods.

1996GR16      Nucl.Phys. A607, 277 (1996); Erratum Nucl.Phys. A614, 567 (1997)

L.V.Grigorenko, N.B.Shulgina, M.V.Zhukov

Theoretical Studies of 8He β-Decay

RADIOACTIVITY 8He(β-); calculated neutron spectrum following β-decay, Gamow-Teller transition strength. 8Li deduced halo analog state energy. Three-body model, α+4N configurations, two-body continuum considered.

doi: 10.1016/S0375-9474(96)00237-0
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1996SH02      Nucl.Phys. A597, 197 (1996)

N.B.Shulgina, B.V.Danilin, V.D.Efros, J.M.Bang, J.S.Vaagen, M.V.Zhukov, and the Russian-Nordic-British Theory (RNBT) Collaboration

Three-Body Structure of 8Li and the 7Li(n, γ)8Li Reaction

NUCLEAR REACTIONS 7Li(n, γ), E=25 keV; calculated σ. 3H(α, α), E=3-8 MeV; calculated phase shifts vs E. Three-body cluster model.

NUCLEAR STRUCTURE 8Li; calculated matter density, cluster component separation rms radii. Three-body cluster model.

doi: 10.1016/0375-9474(95)00444-0
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1993SH05      Nucl.Phys. A554, 137 (1993)

N.B.Shulgina, B.V.Danilin

Charged- and Neutral-Current Disintegration of the 6Li Nucleus by Solar Neutrino and Reactor Antineutrino

NUCLEAR REACTIONS 6Li(ν-bar, X), E=solar, reactor; calculated reaction σ. Neutral, charged channels, α+2N representation.

NUCLEAR STRUCTURE 6Li, 6Be, 6He; calculated β-decay Gamow-Teller transition strength. Three-body model, α+2N representation.

doi: 10.1016/0375-9474(93)90362-2
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1991DA24      Izv.Akad.Nauk SSSR, Ser.Fiz. 55, 908 (1991); Bull.Acad.Sci.USSR, Phys.Ser. 55, No.5, 44 (1991)

B.V.Danilin, N.B.Shulgina

Decay of the Ground State of the 6He Nucleus in the Three-Particle α + 2N Model

RADIOACTIVITY 6He(β-); calculated ft in β-decay; deduced parameter dependence. Hyperspherical harmonic method.

1991GA06      Phys.Lett. 253B, 283 (1991)

Yu.V.Gaponov, N.B.Shulgina, P.E.Spivak

Neutron Beta Decay and the Right-Handed Current Problem

RADIOACTIVITY 1n; analyzed T1/2, β-asymmetry data; deduced axial-vector constant renormalization.

doi: 10.1016/0370-2693(91)91719-C
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1990GA32      Yad.Fiz. 52, 1653 (1990); Sov.J.Nucl.Phys. 52, 1042 (1990)

Yu.V.Gaponov, P.E.Spivak, N.B.Shulgina

Neutron β Decay and Right-Handed Currents

RADIOACTIVITY 1n(β-); analyzed T1/2; deduced axial vector current renormalization implications. Electron spin correlation input.

1987BO47      Pisma Zh.Eksp.Teor.Fiz. 45, 521 (1987); JETP Lett.(USSR) 45, 665 (1987)

A.A.Borovoi, Yu.S.Lyutostansky, I.V.Panov, S.Kh.Khakimov, N.B.Shulgina

The Strength Function of Germanium-71 and the Problem of the ν(e) → ν-bar(e), ν-bar(e) → ν(e) Oscillations

NUCLEAR REACTIONS 71Ga(ν, e-), E ≤ 10 MeV; calculated σ(E). 71Ga(p, n), E not given; calculated strength function; deduced neutrino oscillations, 71Ge level excitation connection.

1987VL01      Yad.Fiz. 45, 1586 (1987)

D.M.Vladimirov, N.B.Shulgina

SU(4) Symmetry of the Effective Nucleon-Nucleon Interaction and the Coulomb Energy of Nucleus

NUCLEAR STRUCTURE A=4-60; calculated Coulomb energy spin-isospin dependence.

1982GA26      Nucl.Phys. A391, 93 (1982)

Yu.V.Gaponov, N.B.Shulgina, D.M.Vladimirov

Wigner Su(4)-Symmetry Restoration in Heavy Nuclei and the Many-Body Forces Problem

NUCLEAR STRUCTURE A ≥ 216; calculated isobar mass differences, mass formula three-, four-body parameters. Wigner symmetry restoration hypothesis.

doi: 10.1016/0375-9474(82)90221-4
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1981GA39      Pisma Zh.Eksp.Teor.Fiz. 34, 300 (1981); JETP Lett.(USSR) 34, 287 (1981)

Yu.V.Gaponov, N.B.Shulgina, D.M.Vladimirov

Mass Formula in the Restoration Scheme of the Wigner SU(4) Symmetry in Heavy Nuclei

NUCLEAR STRUCTURE A ≥ 216; analyzed mass formula parameter data. Higher order Casimir operators, SU(4) symmetry restoration scheme.

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Note: The following list of authors and aliases matches the search parameter N.B.Shulgina: N.B.SHUL'GINA, N.B.SHULGINA