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NSR database version of April 11, 2024.

Search: Author = D.Gambacurta

Found 36 matches.

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2023CA02      Prog.Part.Nucl.Phys. 128, 103999 (2023)

F.Cappuzzello, H.Lenske, M.Cavallaro, C.Agodi, N.Auerbach, J.I.Bellone, R.Bijker, S.Burrello, S.Calabrese, D.Carbone, M.Colonna, G.De Gregorio, J.L.Ferreira, D.Gambacurta, H.Garcia-Tecocoatzi, A.Gargano, J.A.Lay, R.Linares, J.Lubian, E.Santopinto, O.Sgouros, V.Soukeras, A.Spatafora

Shedding light on nuclear aspects of neutrinoless double beta decay by heavy-ion double charge exchange reactions

doi: 10.1016/j.ppnp.2022.103999
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2023SA28      Nucl.Phys. A1036, 122675 (2023)

M.Sambataro, N.Sandulescu, D.Gambacurta

Coexistence of quartets and pairs in even-even N>Z nuclei

NUCLEAR STRUCTURE 22,24,26,28Ne, 24,26,28,30Mg, 28,30,32Si, 46,48,50,52Ti, 48,50,52,54Cr; analyzed the structure of the ground states of even-even nuclei; deduced occupation probabilities of the single-particle orbits, description of the ground states of these nuclei as a product of two terms, one representing the proton-neutron subsystem with an equal number of protons and neutrons and the other one associated with the excess neutrons.

doi: 10.1016/j.nuclphysa.2023.122675
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2022GA04      Phys.Rev. C 105, 014321 (2022)

D.Gambacurta, M.Grasso

Quenching of Gamow-Teller strengths and two-particle-two-hole configurations

NUCLEAR STRUCTURE 48Ca, 90Zr, 132Sn, 14C, 22O; calculated Gamow-Teller strengths GT- for 48Ca and 90Zr, GT- SSRPA and RPA discrete spectra for 90Zr and 132Sn, cumulative sums for GT- strengths for 14C and 22O using charge-exchange subtracted second random-phase approximation (SSRPA), based on Skyrme functional SGII for Gamow-Teller resonances in closed-shell and closed-subshell nuclei, with the inclusion of two-particle-two-hole configurations. Comparison with ab initio coupled-cluster predictions, and with experimental data.

doi: 10.1103/PhysRevC.105.014321
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2022NE02      Phys.Rev. C 105, 034325 (2022)

D.Negrea, N.Sandulescu, D.Gambacurta

Proton-neutron pairing and binding energies of nuclei close to the N=Z line

NUCLEAR STRUCTURE 24,26,28Mg, 28,30,32Si, 32,34,36S, 36,38,40Ar, 40,42,44Ca, 44,46,48Ti, 48,50,52Cr, 52,54,56Fe, 56,58,60Ni, 60,62,64Zn, 64,66,68Ge, 68,70,72Se, 72,74,76Kr, 76,78,80Sr, 80,82,84Zr, 84,86,88Mo, 88,90,92Ru, 92,94,96Pd, 96,98,100Cd, 100Sn; calculated binding energies for N=Z, N=Z+2 and N=Z+4 nuclei using different pairing forces and approximations, interaction energies and pairing energies, and compared with experimental binding energies; analyzed contribution of isovector and isoscalar proton-neutron pairing to the binding energies of even-even nuclei. 64Ge; calculated pairing energy, interaction energy and self-energy, diagonal and nondiagonal matrix elements of the isovector and isoscalar pairing force. Mean-field approach with Skyrme-type functional and quartet condensation model (Skyrme-HF+QCM calculations).

doi: 10.1103/PhysRevC.105.034325
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2021LE28      Universe 7, 98 (2021)

H.Lenske, J.Bellone, M.Colonna, D.Gambacurta

Nuclear Matrix Elements for Heavy Ion Sequential Double Charge Exchange Reactions

doi: 10.3390/universe7040098
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2020GA33      Phys.Rev.Lett. 125, 212501 (2020)

D.Gambacurta, M.Grasso, J.Engel

Gamow-Teller Strength in 48Ca and 78Ni with the Charge-Exchange Subtracted Second Random-Phase Approximation

NUCLEAR STRUCTURE 48Ca, 78Ni; analyzed available data; calculated Gamow-Teller strength distributions using a fully self-consistent subtracted second random-phase approximation for charge-exchange processes with Skyrme energy-density functionals.

doi: 10.1103/PhysRevLett.125.212501
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2020GR07      Phys.Rev. C 101, 064314 (2020)

M.Grasso, D.Gambacurta

Beyond-mean-field effects on the symmetry energy and its slope from the low-lying dipole response of 68Ni

NUCLEAR STRUCTURE 68Ni; calculated low-energy B(E1) distributions, neutron and proton transition densities, isoscalar and isovector E1 transition densities, percentage of the EWSR, mean-field EOSs of pure neutron matter, neutron skin thickness, electric dipole polarizability, using the beyond-mean-field (BMF) subtracted second random-phase approximation (SSRPA) model based on Skyrme interaction. Comparison with experimental data. Qualitative estimate of beyond-mean-field effects on symmetry energy of infinite matter and its slope.

doi: 10.1103/PhysRevC.101.064314
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2019GA22      Phys.Rev. C 100, 014317 (2019)

D.Gambacurta, M.Grasso, O.Sorlin

Soft breathing modes in neutron-rich nuclei with the subtracted second random-phase approximation

NUCLEAR STRUCTURE 34Si, 36S, 40,48,60Ca, 68Ni; calculated isoscalar monopole excitations, strength distribution, neutron and proton transition densities, contributions from one-particle one-hole and two-particle two-hole configurations energy weighted sum rules (EWSR) using beyond mean-filed subtracted second random-phase approximation (SSRPA) based on Skyrme interaction SGII.

doi: 10.1103/PhysRevC.100.014317
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2018GA02      Phys.Lett. B 777, 163 (2018)

D.Gambacurta, M.Grasso, O.Vasseur

Electric dipole strength and dipole polarizability in 48Ca within a fully self-consistent second random-phase approximation

NUCLEAR STRUCTURE 48Ca; calculated B(E1), electric dipole polarizability using Skyrme SSRPA model in a fully self-consistent scheme.

doi: 10.1016/j.physletb.2017.12.026
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2018GR11      Phys.Rev. C 98, 051303 (2018)

M.Grasso, D.Gambacurta, O.Vasseur

Beyond-mean-field effective masses in the nuclear Fermi liquid from axial breathing modes

NUCLEAR STRUCTURE 48Ca, 90Zr, 120Sn; calculated isoscalar giant quadrupole resonances (GQR), theoretical uncertainty in the mean-field effective mass from various Skyrme parametrizations, beyond-mean-field (BMF) effective masses, random-phase approximation (RPA) and subtracted second RPA (SSRPA) diagonal matrix elements for the first three single-particle configurations using SSRPA model.

doi: 10.1103/PhysRevC.98.051303
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2018NE10      Phys.Rev. C 98, 064319 (2018)

D.Negrea, P.Buganu, D.Gambacurta, N.Sandulescu

Isovector and isoscalar proton-neutron pairing in N > Z nuclei

NUCLEAR STRUCTURE 20,22,24,26Ne, 24,26,28,30Mg, 28,30,32,34Si, 44,46,48,50Ti, 48,50,52,54Cr, 52,54,56,58Fe, 104,106,108,110Te, 108,110,112,114Xe, 112,114,116,118Ba; calculated isovector and isoscalar nucleon pairing energies, and errors in the correlation energies using extended quartet condensation model (QCM) applied for a set of nucleons moving in a fixed mean field generated by Skyrme-HF calculations.

doi: 10.1103/PhysRevC.98.064319
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2018VA17      Phys.Rev. C 98, 044313 (2018)

O.Vasseur, D.Gambacurta, M.Grasso

Systematic study of giant quadrupole resonances with the subtracted second random-phase approximation: Beyond-mean-field centroids and fragmentation

NUCLEAR STRUCTURE 30,34Si, 36S, 40,48Ca, 56Ni, 90Zr, 114,116,120,132Sn, 208Pb; calculated centroids and widths of isoscalar giant quadrupole resonances (GQR) using the subtracted second random-phase-approximation (SSRPA) model in the framework of the energy-density-functional theory. Comparison with RPA calculations and experimental values.

doi: 10.1103/PhysRevC.98.044313
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2017NE07      Prog.Theor.Exp.Phys. 2017, 073D05 (2017)

D.Negrea, N.Sandulescu, D.Gambacurta

Isovector and isoscalar pairing in odd-odd N = Z nuclei within a quartet approach

NUCLEAR STRUCTURE N=8-32; calculated energy difference between the lowest T=1 and T=0 isospin states as function of N=Z=A/2, pairing energies.

doi: 10.1093/ptep/ptx071
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2017RI01      Phys.Rev. C 95, 014326 (2017)

J.Ripoche, D.Lacroix, D.Gambacurta, J.-P.Ebran, T.Duguet

Combining symmetry breaking and restoration with configuration interaction: A highly accurate many-body scheme applied to the pairing Hamiltonian

doi: 10.1103/PhysRevC.95.014326
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2016GA04      Phys.Rev. C 93, 024309 (2016)

D.Gambacurta, F.Catara, M.Grasso, M.Sambataro, M.V.Andres, E.G.Lanza

Nuclear excitations as coupled one and two random-phase-approximation modes

NUCLEAR STRUCTURE 16O; calculated low-lying levels and giant resonances (dipole, quadrupole and octupole), J, π, monopole (E0), dipole (E1), isoscalar quadrupole (E2), and isoscalar octupole (E3) response functions. Double random-phase approximation (DRPA) method to include two -particle two-hole (2p-2h) configurations and by coupling them with the 1p-1h ones and among themselves. Comparison with experimental values.

doi: 10.1103/PhysRevC.93.024309
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2016GA28      Eur.Phys.J. A 52, 198 (2016)

D.Gambacurta, M.Grasso

Second RPA calculations with the Skyrme and Gogny interactions

NUCLEAR STRUCTURE 16O; calculated giant resonance strength distributions using RPA, Skyrme-SRPA, Gogny-SRPA (SRPA = Skyrme RPA).

doi: 10.1140/epja/i2016-16198-6
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2015GA03      Phys.Rev. C 91, 014308 (2015)

D.Gambacurta, D.Lacroix

Effects of deformation on the coexistence between neutron-proton and particle-like pairing in N = Z medium-mass nuclei

NUCLEAR STRUCTURE 44Ti, 48Cr, 52Fe, 56Ni, 60Zn, 64Ge; calculated binding energy, mean proton and neutron gaps, neutron single-particle energies, total energy, isovector and isoscalar energy contributions, and isovector and isoscalar total deuteron transfer probability as function of quadrupole deformation, pairing matrix elements in the T=1 and T=0 channels. Combination of self-consistent mean-field and shell-model techniques to study proton-neutron pairing correlations in fp-shell even-even N=Z nuclei, with deformation effects treated microscopically through the Skyrme-HF+BCS.

doi: 10.1103/PhysRevC.91.014308
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2015GA28      Phys.Rev. C 92, 034303 (2015)

D.Gambacurta, M.Grasso, J.Engel

Subtraction method in the second random-phase approximation: First applications with a Skyrme energy functional

NUCLEAR STRUCTURE 16O; calculated energies, isoscalar monopole B(E0) and quadrupole B(E2) response for 10-30 MeV excitation, ratios of moments, EWSR, effects of two particle-two hole configurations (2p2h) on the excitation spectra of medium-mass and heavy nuclei. Subtraction procedure in the second random-phase-approximation (SRPA) with Skyrme energy density-functional theory. Comparison with experimental data.

doi: 10.1103/PhysRevC.92.034303
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2015SA53      Phys.Lett. B 751, 348 (2015)

N.Sandulescu, D.Negrea, D.Gambacurta

Proton-neutron pairing in N = Z nuclei: Quartetting versus pair condensation

NUCLEAR STRUCTURE 16O, 40Ca, 100Sn, 20Ne, 24Mg, 28Si, 44Ti, 48Cr, 52Fe, 104Te, 108Xe, 112Ba; calculated proton-neutron pairing and correlation energies using the pair-quartet condensation model (PQCM). Comparison with available data.

doi: 10.1016/j.physletb.2015.10.063
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2013GA38      Phys.Rev. C 88, 034324 (2013)

D.Gambacurta, D.Lacroix, N.Sandulescu

Pairing and specific heat in hot nuclei

NUCLEAR STRUCTURE 161,162Dy, 171,172Yb; calculated neutron pairing gap as a function of temperature, neutron, proton and total specific heat capacities in the framework of particle-number projection BCS formalism extended to finite temperature (FT-VAP) with Hamiltonian generated by Skyrme-HF and RMF calculations. Comparison with experimental data.

doi: 10.1103/PhysRevC.88.034324
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2013LA21      Phys.Rev. C 87, 061302 (2013)

D.Lacroix, D.Gambacurta, S.Ayik

Quantal corrections to mean-field dynamics including pairing

doi: 10.1103/PhysRevC.87.061302
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2012GA16      Phys.Rev. C 85, 044321 (2012)

D.Gambacurta, D.Lacroix

Thermodynamical properties of small superconductors with a fixed number of particles

doi: 10.1103/PhysRevC.85.044321
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2012GA31      Phys.Rev. C 86, 021304 (2012)

D.Gambacurta, M.Grasso, V.De Donno, G.Co, F.Catara

Second random-phase approximation with the Gogny force: First applications

NUCLEAR STRUCTURE 16O; calculated isoscalar monopole discrete strength distribution B(E0), isoscalar monopole response, proton and neutron transition densities. Random-phase approximation (RPA), second RPA (SRPA) with finite-range Gogny interaction. Discussed effects of particle-hole couplings in Gogny-SRPA calculations.

doi: 10.1103/PhysRevC.86.021304
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2012GA50      Phys.Rev. C 86, 064320 (2012)

D.Gambacurta, D.Lacroix

Description of two-particle transfer in superfluid systems

doi: 10.1103/PhysRevC.86.064320
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2012LA14      Phys.Rev. C 86, 014306 (2012)

D.Lacroix, D.Gambacurta

Projected quasiparticle perturbation theory

doi: 10.1103/PhysRevC.86.014306
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2011GA02      J.Phys.(London) G38, 035103 (2011)

D.Gambacurta, M.Grasso, F.Catara

Residual interaction in second random-phase approximation with density-dependent forces: rearrangement terms

doi: 10.1088/0954-3899/38/3/035103
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2011GA37      Phys.Rev. C 84, 024301 (2011)

D.Gambacurta, L.Li, G.Colo, U.Lombardo, N.Van Giai, W.Zuo

Determination of local energy density functionals from Brueckner-Hartree-Fock calculations

NUCLEAR STRUCTURE 16O, 40Ca, 48Ca, 56Ni, 78Ni, 100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,132Sn, 208Pb; calculated binding energies, charge radii. 208Pb; calculated energies of giant monopole (ISGMR), dipole (IVGDR), quadrupole (ISGQR) and Gamow-Teller resonances. Brueckner-Hartree-Fock approximation, Skyrme parameterization and local energy density functionals. Comparison with experimental data.

doi: 10.1103/PhysRevC.84.024301
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2011GA39      Phys.Rev. C 84, 034301 (2011)

D.Gambacurta, M.Grasso, F.Catara

Low-lying dipole response in the stable 40, 48Ca nuclei with the second random-phase approximation

NUCLEAR STRUCTURE 40,48Ca; calculated isoscalar and isovector B(E1) strength distributions in 5-10 MeV excitation region, EWSR, neutron and proton transition densities. Random-phase approximation (RPA) and second random-phase approximation (SRPA) with Skyrme interaction SGII with inclusion of 2p2h configurations. Pygmy resonances. Comparison with experimental data.

doi: 10.1103/PhysRevC.84.034301
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2011LA22      Phys.Rev. C 84, 064602 (2011)

E.G.Lanza, A.Vitturi, M.V.Andres, F.Catara, D.Gambacurta

Excitations of pygmy dipole resonances in exotic and stable nuclei via Coulomb and nuclear fields

NUCLEAR REACTIONS 132Sn(α, α'), (40Ca, 40Ca'), (48Ca, 48Ca'), E=30, 60, 100 MeV; 208Pb(17O, 17O'), E=20, 50 MeV; calculated form factors for PDR states and GDR, partial wave cross sections, differential cross sections. 100Sn, 120Sn, 132Sn, 208Pb; calculated isovector strength distributions B(E1), RPA transition strengths for low-lying states. Hartree-Fock plus RPA random phase approximation (RPA), with Skyrme interaction.

doi: 10.1103/PhysRevC.84.064602
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2010GA07      Phys.Rev. C 81, 054312 (2010)

D.Gambacurta, M.Grasso, F.Catara

Collective nuclear excitations with Skyrme-second random-phase approximation

NUCLEAR STRUCTURE 16O; calculated isoscalar and isovector strength distributions for monopole 0+, dipole 1- and quadrupole 2+ states, B(E0), B(E1), B(E2), transition densities using second random phase approximation using second random-phase approximation (SRPA) calculations with a Skyrme force. Comparison between RPA and SRPA calculations.

doi: 10.1103/PhysRevC.81.054312
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2010VI02      Pramana 75, 73 (2010)

A.Vitturi, E.G.Lanza, M.V.Andres, F.Catara, D.Gambacurta

Excitation of pygmy dipole resonance in neutron-rich nuclei via Coulomb and nuclear fields

NUCLEAR REACTIONS 208Pb(132Sn, 132Sn'), E=6, 10, 20, 50 MeV/nucleon; 4He, 40,48Ca(132Sn, 132Sn'), E=10 MeV/nucleon; 132Sn; calculated σ(θ), σ(E), transition densities of dipole state, B(E1), form factors.

doi: 10.1007/s12043-010-0066-z
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2009GA22      Phys.Rev. C 80, 014303 (2009)

D.Gambacurta, F.Catara, M.Grasso

Self-consistent extension of random-phase approximation enlarged beyond particle-hole configurations

doi: 10.1103/PhysRevC.80.014303
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2009LA11      Phys.Rev. C 79, 054615 (2009)

E.G.Lanza, F.Catara, D.Gambacurta, M.V.Andres, Ph.Chomaz

Multiphonon excitations and pygmy resonances in tin isotopes

NUCLEAR REACTIONS 100,120,132Sn(γ, γ'), E not given; calculated proton and neutron densities, isoscalar strength distributions for monopole, quadrupole and octupole states, isovector strength distributions for dipole states, transition probabilities, transition densities for low-lying dipole state for pygmy dipole resonance and giant dipole resonance. Microscopic RPA and boson expansion calculations. 120,132Sn(208Pb, X), E=500 MeV/nucleon; calculated relativistic Coulomb inelastic cross sections using coupled-channel method.

doi: 10.1103/PhysRevC.79.054615
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2006GA02      Phys.Rev. C 73, 014310 (2006)

D.Gambacurta, M.Sambataro, F.Catara

Solvable many-level pairing model in a boson formalism

doi: 10.1103/PhysRevC.73.014310
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2006GA09      Phys.Rev. C 73, 024319 (2006)

D.Gambacurta, M.Grasso, F.Catara, M.Sambataro

Extension of the second random-phase approximation

doi: 10.1103/PhysRevC.73.024319
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2004GA47      Yad.Fiz. 67, 1804 (2004); Phys.Atomic Nuclei 67, 1776 (2004)

D.Gambacurta, M.Sambataro

Pairing Correlations in Finite Nuclear Systems

doi: 10.1134/1.1811177
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