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NSR database version of May 20, 2024.

Search: Author = N.Dinh Dang

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2023SE11      J.Phys.(London) G50, 075104 (2023)

E.Senapati, S.Mondal, S.Bhattacharya, d.Pandit, N.Dinh Dang, N.N.Anh, L.T.Quynh Huong, R.Santra, N.Quang Hung, B.Dey

Pairing phase transition in an odd-even hot 69Zn nucleus

NUCLEAR STRUCTURE 69Zn; analyzed available data; deduced pairing phase transition in an odd–even hot-rotating nucleus using the reported nuclear level density (NLD) data, which were experimentally extracted from the γ-gated particle spectra.

doi: 10.1088/1361-6471/acd2f1
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2023VU01      Phys.Rev. C 107, 064319 (2023)

T.Vu Dong, L.Tan Phuc, N.Quang Hung, N.Dinh Dang, T.Dieu Huyen, N.L.Anh Tuan

Pairing reentrance in odd nuclei at finite temperature

NUCLEAR STRUCTURE 37,39,41,43,45Ca; calculated neutron single-particle energies, temperature-dependent pairing gaps. Examined single-particle level configurations that can produce pairing reentrance effect. Showed that reentrance effect may decrease or even disappear by decreasing the distance between levels located close to the one occupied by the odd nucleon leading to an increase in the Pauli blocking effect. Finite-temperature exact pairing method (FTEP).

doi: 10.1103/PhysRevC.107.064319
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2020DE30      Phys.Rev. C 102, 031301 (2020)

B.Dey, S.-S.Wang, D.Pandit, S.Bhattacharya, X.-G.Cao, W.-B.He, Y.-G.Ma, N.Quang Hung, N.Dinh Dang

Exotic nuclear shape due to cluster formation at high angular momentum

NUCLEAR REACTIONS 12C(16O, X)28Si*,12C(20Ne, X)32S*, E not given; calculated density distributions using extended quantum molecular dynamics (EQMD) model, considering 12C as a triangle, 16O as a square, and 20Ne as a pentagonal. 28Si, 32S; calculated neutron and proton pairing gaps as functions of temperature and angular momenta within the finite-temperature BCS (FTBCS) theory; analyzed experimental data for giant dipole resonance (GDR) strength functions for Eγ=5 to 30 MeV, and compared with EQMD calculations, and with TSFM calculations with and without shell corrections. Discussed effects of cluster shapes of 32S and 28Si in the GDR strength function at high angular momentum and temperature.

doi: 10.1103/PhysRevC.102.031301
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2020QU02      Phys.Lett. B 811, 135858 (2020)

N.Quang Hung, N.Dinh Dang, L.Tan Phuc, N.N.Anh, T.D.Xuan, T.V.Nhan Hao

A fully microscopic model of total level density in spherical nuclei

NUCLEAR STRUCTURE 90Zr, 60Ni; calculated nuclear level densities, neutron pairing gap using a fully microscopic model.

doi: 10.1016/j.physletb.2020.135858
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2020TA24      Phys.Rev. C 102, 061302 (2020)

L.Tan Phuc, N.Quang Hung, N.Dinh Dang, L.T.Quynh Huong, N.N.Anh, N.N.Duy, L.Ngoc Uyen, N.Nhu Le

Role of exact treatment of thermal pairing in radiative strength functions of 161-163Dy nuclei

NUCLEAR STRUCTURE 161,162,163Dy; calculated radiative strength functions (RSF) for E1 and E1+M1 excitations, and GDR widths using the phonon damping model (PDM) plus exact thermal pairing (EP), without adding any extra pygmy dipole resonance (PDR) strength function. Comparison with experimental data.

doi: 10.1103/PhysRevC.102.061302
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2019DE04      Phys.Lett. B 789, 634 (2019)

B.Dey, N.Quang Hung, D.Pandit, S.Bhattacharya, N.Dinh Dang, L.T.Quynh Huong, D.Mondal, S.Mukhopadhyay, S.Pal, A.De, S.R.Banerjee

S-shaped heat capacity in an odd-odd deformed nucleus

NUCLEAR STRUCTURE 184Re, 200Tl, 211Po, 212At; calculated angular-momentum-gated thermodynamic quantities as functions of temperature gated nuclear level densities.

doi: 10.1016/j.physletb.2018.12.007
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2019PH01      Phys.Rev. C 99, 064322 (2019)

L.Tan Phuc, N.Quang Hung, N.Dinh Dang

Renormalizing random-phase approximation by using exact pairing

NUCLEAR STRUCTURE 22O, 60Ni, 90Zr; calculated isoscalar and isovector B(E1) and EWSR, pairing energies, and ratio of pygmy dipole resonance strength to GDR strength using self-consistent RPA based on Hartree-Fock mean field plus exact pairing solutions.

NUCLEAR REACTIONS 22O, 60Ni, 90Zr(γ, X), E=0-50 MeV; calculated GDR σ(E) using self-consistent RPA based on Hartree-Fock mean field plus exact pairing solutions. Comparison with experimental values.

doi: 10.1103/PhysRevC.99.064322
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2018MO22      Phys.Lett. B 784, 423 (2018)

D.Mondal, D.Pandit, S.Mukhopadhyay, S.Pal, S.Bhattacharya, A.De, N.Dinh Dang, N.Quang Hung, S.Bhattacharya, S.Bhattacharyya, B.Dey, P.Roy, K.Banerjee, S.R.Banerjee

Study of giant dipole resonance in hot rotating light mass nucleus 31P

NUCLEAR REACTIONS 27Al(α, X)31P, E=28, 35, 42 MeV; measured reaction products, Eγ, Iγ; deduced yields, σ, giant dipole resonance parameters, widths. Comparison with theoretical calculations.

doi: 10.1016/j.physletb.2018.07.052
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2018PH01      Phys.Rev. C 97, 024331 (2018)

L.Tan Phuc, N.Quang Hung, N.Dinh Dang

Bubble nuclei within the self-consistent Hartree-Fock mean field plus pairing approach

NUCLEAR STRUCTURE 22O, 34Si; calculated occupation numbers of the 2s1/2 level, pairing gaps, and depletion factors, binding energy per nucleon, S(2p), S(2n), proton and neutron densities, single-particle energies for protons and neutrons, depletion factors for proton and neutron densities (nuclear bubbles), neutron pairing gaps, rms radii for protons and neutrons using several BSk and MSk Skyrme interactions. Skyrme Hartree-Fock mean field calculations with superfluid pairing from finite temperature Bardeen-Cooper-Schrieffer (BCS) theory, and within the formalisms of finite-temperature Hartree-Fock (FTHF) and finite temperature exact pairing (FTEP) methods. Comparison with experimental data for binding energies, S(2n) and S(2p).

doi: 10.1103/PhysRevC.97.024331
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2017DA27      Phys.Rev. C 96, 054321 (2017)

N.Dinh Dang, N.Quang Hung, L.T.Quynh Huong

Testing the constant-temperature approach for the nuclear level density

NUCLEAR STRUCTURE 60,61,62Ni, 170,171,172Yb; calculated neutron pairing gaps, total heat capacities, total nuclear level densities and nuclear temperature as functions of excitation energy. Exact pairing (EP) in combination with independent-particle model (IPM), and the finite-temperature Bardeen-Cooper-Schrieffer (FTBCS) theory. Comparison with SMMC, HFBC and HF-BCS predictions, and with experimental data.

doi: 10.1103/PhysRevC.96.054321
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2017DE34      Phys.Rev. C 96, 054326 (2017)

B.Dey, D.Pandit, S.Bhattacharya, N.Quang Hung, N.Dinh Dang, L.Tan Phuc, D.Mondal, S.Mukhopadhyay, S.Pal, A.De, S.R.Banerjee

Level density and thermodynamics in the hot rotating 96Tc nucleus

NUCLEAR REACTIONS 93Nb(α, n)96Tc, E=28 MeV; measured E(n), I(n), Eγ, Iγ, nγ-coin at VECC-Kolkata cyclotron facility; deduced fold and angular momentum distributions, neutron and proton pairing gaps as functions of temperature, angular momentum gated nuclear level density (NLD), excitation energy-dependent spin cutoff factor. Comparison with statistical model calculations, and different microscopic calculations such as exact pairing plus independent particle model at finite temperature (EP+IPM), Hartree-Fock plus BCS (HF+BCS), and Hartree-Fock-Bogoliubov plus combinatorial method (HFBC).

doi: 10.1103/PhysRevC.96.054326
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2017KU16      Phys.Rev. C 96, 024322 (2017)

A.K.R.Kumar, P.Arumugam, N.Dinh Dang, I.Mazumdar

Giant dipole resonance and shape transitions in hot and rotating 88Mo

NUCLEAR REACTIONS 40Ca(48Ti, X)88Mo*/86Zr/84Zr/80Sr/76Kr/74Se/70Ge/68Ge, E=300, 600 MeV; calculated giant-dipole resonance (GDR) cross sections within the thermal shape fluctuation model (TSFM) for different daughter nuclei formed at different temperatures and angular momenta. Comparison of experimental GDR cross sections and widths for 88Mo with the TSFM calculations. 88Mo; calculated free energy surfaces (FES) in (β2, γ) plane as functions of temperature and angular momentum.

doi: 10.1103/PhysRevC.96.024322
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2017QU01      Phys.Rev.Lett. 118, 022502 (2017)

N.Quang Hung, N.Dinh Dang, L.T.Quynh Huong

Simultaneous Microscopic Description of Nuclear Level Density and Radiative Strength Function

NUCLEAR STRUCTURE 170,171,172Yb; calculated neutron and proton pairing gaps, radiative strength functions. Comparison with available data.

doi: 10.1103/PhysRevLett.118.022502
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2016CH20      Eur.Phys.J. A 52, 143 (2016)

D.R.Chakrabarty, N.Dinh Dang, V.M.Datar

Giant dipole resonance in hot rotating nuclei

NUCLEAR REACTIONS 124Sn(28Si, γ), E=149, 185 MeV; recalculated GDR widths, absorption σ, published by the same authors in J. Phys. G37 (2010).

doi: 10.1140/epja/i2016-16143-9
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2016HU13      Phys.Rev. C 94, 024341 (2016)

N.Quang Hung, N.Dinh Dang, L.T.Quynh Huong

Improved treatment of blocking effect at finite temperature

doi: 10.1103/PhysRevC.94.024341
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2016HU21      Phys.Rev. C 94, 064312 (2016)

N.Quang Hung, N.Dinh Dang, T.V.Nhan Hao, L.Tan Phuc

Effective restoration of dipole sum rules within the renormalized random-phase approximation

NUCLEAR STRUCTURE 48,52,58Ca, 90,96,110Zr; calculated isoscalar and isovector B(E1) distributions and strength functions, EWSR, centroid energies, SPDR/SGDR ratio. Fully self-consistent Hartree-Fock mean field with the renormalized random-phase approximation (RRPA) using the Skyrme interaction SLy5, and including the effects of ground-state correlations (GSC) beyond the RPA within the phRRPA for isoscalar (IS) and isovector (IV) dipole excitations.

doi: 10.1103/PhysRevC.94.064312
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2015CI04      Phys.Rev. C 91, 054313 (2015)

M.Ciemala, M.Kmiecik, A.Maj, K.Mazurek, A.Bracco, V.L.Kravchuk, G.Casini, S.Barlini, G.Baiocco, L.Bardelli, P.Bednarczyk, G.Benzoni, M.Bini, N.Blasi, S.Brambilla, M.Bruno, F.Camera, S.Carboni, M.Cinausero, A.Chbihi, M.Chiari, A.Corsi, F.C.L.Crespi, M.D'Agostino, M.Degerlier, B.Fornal, A.Giaz, F.Gramegna, M.Krzysiek, S.Leoni, T.Marchi, M.Matejska-Minda, I.Mazumdar, W.Meczynski, B.Million, D.Montanari, L.Morelli, S.Myalski, A.Nannini, R.Nicolini, G.Pasquali, S.Piantelli, G.Prete, O.J.Roberts, Ch.Schmitt, J.Styczen, B.Szpak, S.Valdre, B.Wasilewska, O.Wieland, J.P.Wieleczko, M.Zieblinski, J.Dudek, N.Dinh Dang

Giant dipole resonance built on hot rotating nuclei produced during evaporation of light particles from the 88Mo compound nucleus

NUCLEAR REACTIONS 40Ca(48Ti, X)88Mo*, E=300, 600 MeV; measured Eγ, Iγ, Eα, Iα, Ep, Ip, nuclear products, light charged particles (LCP) and light reaction fragment spectra using GARFIELD array for particles and HECTOR array for γ rays, angular distributions of the evaporation residues, time-of-flight at TANDEM+ALPI accelerator of Legnaro; deduced GDR parameters, centroid energies, widths and strengths, yields, distribution of nuclei as function of nuclear temperature, temperature distributions of the number of nuclei after the GDR emission. Comparison with statistical code GEMINI++ model calculations.

doi: 10.1103/PhysRevC.91.054313
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2015DE10      Phys.Rev. C 91, 044326 (2015)

B.Dey, D.Pandit, S.Bhattacharya, K.Banerjee, N.Quang Hung, N.Dinh Dang, D.Mondal, S.Mukhopadhyay, S.Pal, A.De, S.R.Banerjee

Experimental investigation on the temperature dependence of the nuclear level density parameter

NUCLEAR REACTIONS 93Nb(α, X)97Tc*, E=28, 35, 42, 50 MeV; measured E(n), I(n), Eγ, Iγ, TOF at VECC, Kolkata facility; deduced angular momentum distributions, average temperature, average angular momentum, density parameter, temperature and angular momentum dependence of the inverse level density parameter. Comparison with theoretical calculations using CASCADE, FTBCS and FTBCS1 codes.

doi: 10.1103/PhysRevC.91.044326
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2015KU11      Phys.Rev. C 91, 044305 (2015)

A.K.R.Kumar, P.Arumugam, N.Dinh Dang

Effects of thermal shape fluctuations and pairing fluctuations on the giant dipole resonance in warm nuclei

NUCLEAR STRUCTURE 97Tc, 120Sn, 179Au, 208Pb; calculated average pairing gap and average quadrupole deformation parameter as function of temperature, probability distribution for gap parameter of protons and neutrons, free energy surface contours in (β, γ) plane, giant-dipole resonance (GDR) strength functions. Thermal shape fluctuation model (TSFM) extended to include the fluctuations in the pairing field. Comparison with experimental data.

doi: 10.1103/PhysRevC.91.044305
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2014DE07      Phys.Lett. B 731, 92 (2014)

B.Dey, D.Mondal, D.Pandit, S.Mukhopadhyay, S. Pal, S.Bhattacharya, A.De, K.Banerjee, N.Dinh Dang, N.Quang Hung, S.R.Banerjee

Probing the critical behavior in the evolution of GDR width at very low temperatures in A ∼ 100 mass region

NUCLEAR REACTIONS 93Nb(α, X)97Tc, E=28, 35, 42, 50 MeV; measured reaction products, Eγ, Iγ, En, In; deduced yields, giant dipole resonance (GDR) width as a function of temperature. Comparison with microscopic and phenomenological models.

doi: 10.1016/j.physletb.2014.02.007
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2014KU24      Phys.Rev. C 90, 044308 (2014)

A.K.R.Kumar, P.Arumugam, N.Dinh Dang

Pairing effect in the thermal shape-fluctuation model on the width of the giant dipole resonance

NUCLEAR STRUCTURE 97Tc, 120Sn, 208Pb; calculated neutron and proton pairing gaps, widths of giant dipole resonances (GDR), free energy surface contours, shell effects and fluctuations of the pairing field dependence on temperature using the thermal shape-fluctuation model (TSFM). Comparison with experimental results.

doi: 10.1103/PhysRevC.90.044308
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2013DI03      Acta Phys.Pol. B44, 595 (2013)

N.Dinh Dang

Damping of Giant Dipole Resonance in Highly Excited Nuclei

NUCLEAR STRUCTURE 120Sn, 208Pb, 201Tl, 106Sn, 88Mo; calculated Giant Dipole Resonance widths and strength functions, shear viscosity. Comparison with available data.

doi: 10.5506/APhysPolB.44.595
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2013DI05      Phys.Rev. C 87, 054313 (2013)

N.Dinh Dang, M.Ciemala, M.Kmiecik, A.Maj

Giant dipole resonance in 88Mo from phonon damping model strength functions averaged over temperature and angular momentum distributions

NUCLEAR REACTIONS 40Ca(48Ti, X)88Mo*, E=150, 170, 200, 300, 400, 450, 500, 600, 700 MeV; calculated GDR line shapes, GDR strength functions, average temperature and angular momentum distributions, widths. Phonon damping model (PDM). Comparison with experimental data.

doi: 10.1103/PhysRevC.87.054313
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2013DI14      J.Phys.(London) G40, 105103 (2013)

N.Dinh Dang, N.Quang Hung

On the importance of using exact pairing in the study of pygmy dipole resonance

NUCLEAR STRUCTURE 18,20,22,24O, 50,52,54,54,56,58,60Ca, 120,122,124,126,128,130Sn; calculated strength functions of the giant dipole resonance. Comparison with available data.

doi: 10.1088/0954-3899/40/10/105103
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2012DA14      Phys.Rev. C 86, 044333 (2012)

N.Dinh Dang, N.Quang Hung

Giant dipole resonance in 201Tl at low temperature

NUCLEAR STRUCTURE 201Tl; calculated giant dipole resonance (GDR) width and strength functions as function of temperature using the phonon damping model. Comparison with 120Sn and 208Pb GDR, and with experimental data.

doi: 10.1103/PhysRevC.86.044333
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2012DI09      Phys.Rev. C 85, 064323 (2012)

N.Dinh Dang

Damping of giant dipole resonances in hot rotating nuclei

NUCLEAR STRUCTURE 88Mo, 106Sn; calculated giant dipole resonance (GDR) widths and strength functions, finite temperature, finite angular momentum, shear viscosity using the phonon damping model (PDM). Comparison with experimental data.

doi: 10.1103/PhysRevC.85.064323
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2012HU06      Phys.Rev. C 86, 024302 (2012)

N.Quang Hung, N.Dinh Dang

Specific shear viscosity in hot rotating systems of paired fermions

doi: 10.1103/PhysRevC.86.024302
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2011DI13      Phys.Rev. C 84, 034309 (2011)

N.Dinh Dang

Shear-viscosity to entropy-density ratio from giant dipole resonances in hot nuclei

NUCLEAR STRUCTURE 63Cu, 120Sn, 208Pb; calculated giant dipole resonance (GDR) widths, shear viscosity as function of temperature, entropy density, quark-gluon plasma, perfect fluid, hot nuclei. Green-Kubo relation and fluctuation-dissipation theorem. Comparison with experimental data for 59,63Cu, 120Sn, 200,208Pb.

doi: 10.1103/PhysRevC.84.034309
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2011QU04      Phys.Rev. C 84, 054324 (2011)

N.Quang Hung, N.Dinh Dang

Pairing reentrance in hot rotating nuclei

NUCLEAR STRUCTURE 60Ni, 72Ge; calculated pairing gaps, heat capacities, level densities. BCS-based quasiparticle approach.

doi: 10.1103/PhysRevC.84.054324
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2010QU02      Phys.Rev. C 81, 057302 (2010)

N.Quang Hung, N.Dinh Dang

Canonical and microcanonical ensemble descriptions of thermal pairing within BCS and quasiparticle random-phase approximation

NUCLEAR STRUCTURE 56Fe; calculated pairing gap, free energy, excitation energy, heat capacity, entropy by solving the BCS and self-consistent quasiparticle random-phase approximation with the Lipkin-Nogami particle-number projection method. Comparison with experimental data.

doi: 10.1103/PhysRevC.81.057302
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2010QU04      Phys.Rev. C 82, 044316 (2010)

N.Quang Hung, N.Dinh Dang

Thermodynamic properties of hot nuclei within the self-consistent quasiparticle random-phase approximation

NUCLEAR STRUCTURE 94,98Mo, 162Dy, 172Yb; calculated eigenstates, pairing gaps, heat capacities, entropy, and level densities as function of excitation energy using BCS and self-consistent quasiparticle random-phase approximation (QRPA). Comparison with experimental data.

doi: 10.1103/PhysRevC.82.044316
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2008HU11      Phys.Rev. C 78, 064315 (2008)

N.Q.Hung, N.Dinh Dang

Pairing in hot rotating nuclei

NUCLEAR STRUCTURE 20O, 22Ne, 44Ca; calculated level-weighted pairing gaps.

doi: 10.1103/PhysRevC.78.064315
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2007DI19      Phys.Rev. C 76, 064320 (2007)

N.Dinh Dang

Particle-number-projected thermal pairing

NUCLEAR STRUCTURE 120Sn; calculated pairing gaps, total and excitation energies, heat capacity, entropy using MBCS theory, particle number projection.

doi: 10.1103/PhysRevC.76.064320
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2007HU24      Phys.Rev. C 76, 054302 (2007); Erratum Phys.Rev. C 77, 029905 (2008)

N.Q.Hung, N.Dinh Dang

Self-consistent quasiparticle random-phase approximation for a multilevel pairing model

doi: 10.1103/PhysRevC.76.054302
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2000DI03      Phys.Rev. C61, 027302 (2000)

N.Dinh Dang, K.Eisenman, J.Seitz, M.Thoennessen

Statistical Analysis of the Hot Giant Dipole Resonance with the Phonon Damping Model

NUCLEAR STRUCTURE 120Sn; calculated hot GDR associated γ-ray spectra; deduced role of superfluid pairing. Statistical model, phonon damping model. Comparison with data.

doi: 10.1103/PhysRevC.61.027302
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1997DI09      Phys.Rev. C56, 1350 (1997)

N.Dinh Dang, A.Arima, V.G.Soloviev, S.Yamaji

Possible Deviation of the Sum of Strengths for the Double Giant Dipole Resonance from the Harmonic Oscillator Limit

doi: 10.1103/PhysRevC.56.1350
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1994CA28      Nucl.Phys. A579, 1 (1994)

F.Catara, N.Dinh Dang, M.Sambataro

Ground-State Correlations Beyond RPA

NUCLEAR STRUCTURE 208Pb, 146Gd; calculated levels, B(λ), EWSR. Ground state correlations beyond RPA.

doi: 10.1016/0375-9474(94)90790-0
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