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NSR database version of April 29, 2024.

Search: Author = L.Bonneau

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2023SA24      Phys.Rev. C 107, 064307 (2023)

M.Sanchez Sanchez, D.D.Dao, L.Bonneau

Cutoff effects in Hartree-Fock calculations at leading order of chiral effective field theory

NUCLEAR STRUCTURE 16O; calculated ground state energy, charge radius. Hartree-Fock approximation with two-nucleon potential at leading order of chiral EFT in the Nogga-Timmermans-van Kolck power counting. Calculations with HFCHIRAL code.

doi: 10.1103/PhysRevC.107.064307
Citations: PlumX Metrics


2022MI06      Phys.Rev. C 105, 044329 (2022)

N.Minkov, L.Bonneau, P.Quentin, J.Bartel, H.Molique, D.Ivanova

K-isomeric states in well-deformed heavy even-even nuclei

NUCLEAR STRUCTURE 234,236U, 236,238,240,244Pu, 244,246,248Cm, 248Cf, 248,250,256Fm, 252,254No; calculated levels, J, π, neutron and proton single-particle spectra, charge radii, quadrupole moments and magnetic moments for ground and isomeric states. Skyrme HF+BCS energy density functional with axial and parity symmetries, and with self-consistent blocking for the isomeric states. Comparison to experimental data.

doi: 10.1103/PhysRevC.105.044329
Citations: PlumX Metrics


2021KE08      Phys.Rev. C 103, 064315 (2021)

K.-W.Kelvin-Lee, M.-H.Koh, L.Bonneau

Role of tensor terms of the Skyrme energy-density functional on neutron deformed magic numbers in the rare-earth region

NUCLEAR STRUCTURE 156,158,160,162,164,166,168,170Gd, 160,162,164,166,168,170,172,174Dy, 166,168,170,172,174,176Er, 166,168,170,172,174,176,178Yb, 170,172,174,176,178,180,182Hf; calculated proton intrinsic quadrupole moments Q20, S(2n) differentials between two consecutive even-even nuclei with tensor and nontensor components, neutron single-particle energy spectra for 164,166,168,170Dy, 168,170,172,174,176Er, 170,172,174,176,178Hf. Skyrme Hartree-Fock-BCS calculations with several TIJ parametrizations of the Skyrme energy-density functional (EDF). Comparison with experimental data.

doi: 10.1103/PhysRevC.103.064315
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2019NO05      Phys.Rev. C 99, 064306 (2019)

N.M.Nor, N.-A.Rezle, K.-W.Kelvin-Lee, M.-H.Koh, L.Bonneau, P.Quentin

Consistency of two different approaches to determine the strength of a pairing residual interaction in the rare-earth region

NUCLEAR STRUCTURE 156,157,158,159,160Sm, 159,161Eu, 160,161,162,163,164,165,166Gd, 161,163,165,167Tb, 162,163,164,165,166,167,168Dy, 167,169Ho, 168,169,170,171,172Er, 169,171,173Tm, 170,171,172,173,174,175,176,177,178Yb, 177,179Lu, 176,177,178,179,180,181,182Hf, 179Ta, 180W; analyzed odd-even staggering of binding energies, and moments of inertia of the first 2+ states of even-even nuclei; calculated neutron and proton pairing residual interaction strengths, binding energies, and moments of inertia. Self-consistent Hartree-Fock plus BCS framework, with the implementation of a self-consistent blocking in the case of odd-mass nuclei, using Skyrme SIII parametrization. Comparison with experimental values, and with other theoretical predictions.

doi: 10.1103/PhysRevC.99.064306
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2017KO04      Phys.Rev. C 95, 014315 (2017)

M.-H.Koh, L.Bonneau, P.Quentin, T.V.Nhan Hao, H.Wagiran

Fission barriers of two odd-neutron actinide nuclei taking into account the time-reversal symmetry breaking at the mean-field level

NUCLEAR STRUCTURE 239Pu, 235U; calculated deformation-energy curves as function of Q20, inner-barrier heights, fission-isomeric energies, and outer-barrier heights, isomeric energies and intrinsic charge quadrupole moments in the fission isomeric well, levels, J, π, bands in the ground-state and isomeric wells. Hartree-Fock plus BCS approach with self-consistent particle blocking, using SkM*, SLy5* and SIII Skyrme parametrizations. Comparison with experimental data.

doi: 10.1103/PhysRevC.95.014315
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2016KO06      Eur.Phys.J. A 52, 3 (2016)

M.-H.Koh, D.D.Duc, T.V.Nhan Hao, T.L.Ha, P.Quentin, L.Bonneau

Band-head spectra of low-energy single-particle excitations in some well-deformed, odd-mass heavy nuclei within a microscopic approach

NUCLEAR STRUCTURE 234,236,238U, 237Np, 238,239Pu, 241Am, 242Cm; calculated band-head states, energy, J, inertia moment using HF plus BCS approach with blocking and two Skyrme interactions.

doi: 10.1140/epja/i2016-16003-8
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2015BO04      Phys.Rev. C 91, 054307 (2015)

L.Bonneau, N.Minkov, D.D.Duc, P.Quentin, J.Bartel

Effect of core polarization on magnetic dipole moments in deformed odd-mass nuclei

NUCLEAR STRUCTURE 99Sr, 99Y, 103Mo, 103Tc, 175Yb, 175Lu, 179Hf, 179Ta, 235U, 235,237Np; calculated binding energies, mass quadrupole moments, magnetic dipole moments, collective gyromagnetic factors, effective spin gyromagnetic factors; analyzed core-polarization effects. Skyrme-Hartree-Fock-BCS approach with selfconsistent blocking and time-odd terms of the Skyrme EDF. Seniority force in BCS calculations. Axial symmetry. Perturbative analysis of time-odd Hartree-Fock Hamiltonian and core-polarization effect on spin gyromagnetic factor. Comparison with experimental data.

doi: 10.1103/PhysRevC.91.054307
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2012HA17      Int.J.Mod.Phys. E21, 1250051 (2012)

T.V.Nhan Hao, J.Le Bloas, M.-H.Koh, L.Bonneau, P.Quentin

Further microscopic studies of the fission barriers of heavy nuclei

doi: 10.1142/S0218301312500516
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2012HA41      Phys.Rev. C 86, 064307 (2012)

T.V.Nhan Hao, P.Quentin, L.Bonneau

Parity restoration in the highly truncated diagonalization approach: Application to the outer fission barrier of 240Pu

NUCLEAR STRUCTURE 240Pu; calculated deformation energy curves around the isomeric state and the second barrier, outer fission barriers, octupole deformation curves of the projection on the positive states, Kπ=0+ fission isomer. Calculated octupole deformation properties for superdeformed state in 194Pb, and ground state in 222Ra. Particle number conserving pairing calculations with microscopic highly truncated diagonalization approach (HTDA) using Skyrme SkM* energy-density functional. Generalized Wicks theorem.

doi: 10.1103/PhysRevC.86.064307
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2012LE12      Phys.Rev. C 86, 034332 (2012); Erratum Phys.Rev. C 91, 049901 (2015)

J.Le Bloas, L.Bonneau, P.Quentin, J.Bartel, D.D.Strottman

Effect of pairing correlations on the isospin-mixing parameter in deformed N=Z even-even nuclei

NUCLEAR STRUCTURE 28Si, 48Cr, 68Se, 76Sr; calculated isospin mixing parameters in the ground states. Particle-number conserving highly truncated diagonalization approach (HTDA) and Skyrme SIII effective interaction.

doi: 10.1103/PhysRevC.86.034332
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2011BO08      Int.J.Mod.Phys. E20, 252 (2011)

L.Bonneau, J.Le Bloas, P.Quentin, N.Minkov

Effects of core polarization and pairing correlations on some ground-state properties of deformed odd-mass nuclei within the Higher Tamm-Dancoff approach

NUCLEAR STRUCTURE 23Na, 23,24,25Mg, 25Al, 48Cr; calculated binding energies, magnetic moments.

doi: 10.1142/S0218301311017594
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2011LE15      Int.J.Mod.Phys. E20, 274 (2011)

J.Le Bloas, L.Bonneau, P.Quentin, J.Bartel

Effects of pairing correlations on the isospin-symmetry-breaking correction to super-allowed O+ → O+ Fermi transitions with in the higher Tamm-Dancoff approach

RADIOACTIVITY 50Mn(β+); calculated isospin-symmetry breaking corrections.

NUCLEAR STRUCTURE 48Cr, 52Fe; calculated isospin-symmetry breaking corrections.

doi: 10.1142/S0218301311017624
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2011LE21      Phys.Rev. C 84, 014310 (2011)

J.Le Bloas, M.Koh, P.Quentin, L.Bonneau, J.I.A.Ithnin

Exact Coulomb exchange calculations in the Skyrme-Hartree-Fock-BCS framework and tests of the Slater approximation

NUCLEAR STRUCTURE 16O, 24Mg, 40,48Ca, 48Cr, 48,56Ni, 90Zr, 106Mo, 100,132Sn, 174,176,178Hf, 206,208,210Pb, 238U, 298Fl, 310126; Z=20-34, N=28; Z=40-58, N=64; Z=52-62, N=78; Z=68-80, N=106; Z=76-88, N=126; Z=86-100, N=146; calculated Coulomb interaction and fission properties for even-even nuclei within the Skyrme-Hartree-Fock/Bardeen-Cooper-Schrieffer approach. Pairing correlations. 70Se; calculated deformation energy curves. 212Po, 214Rn, 216Ra, 218Th; calculated α decay properties.

doi: 10.1103/PhysRevC.84.014310
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2010LE06      Int.J.Mod.Phys. E19, 568 (2010)

J.Le Bloas, L.Bonneau, P.Quentin, J.Bartel, D.Strottman

Effects of vibrational and pairing correlations on isospin mixing in the Higher Tamm-Dancoff Approximation

doi: 10.1142/S0218301310014984
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2010QU01      Int.J.Mod.Phys. E19, 611 (2010)

P.Quentin, L.Bonneau, N.Minkov, D.Samsoen

Odd nuclei, time-reversal symmetry breaking, and magnetic polarization of the even-even core

NUCLEAR STRUCTURE 48,49Cr, 49Mn, 98,99Sr, 99Y, 102,103Mo, 103Tc, 174,175Yb, 175Lu, 178,179Hf, 179Ta, 234,235U, 235Np; calculated spin operators and quenching factors, core polarization of magnetic moments. Skyrme force parameterization.

doi: 10.1142/S0218301310015023
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2009BO22      Int.J.Mod.Phys. E18, 951 (2009)

L.Bonneau, J.Le Bloas, P.Quentin, J.Bartel, D.Strottman

Isospin mixing in the higher Tamm-Dancoff approximation

NUCLEAR STRUCTURE 16O, 40Ca, 56Ni, 100Sn; calculated mass excess; 100Sn; calculated isospin mixing.

doi: 10.1142/S0218301309013099
Citations: PlumX Metrics


2008QU02      Int.J.Mod.Phys. E17, 228 (2008)

P.Quentin, H.Naidja, L.Bonneau, J.Bartel, T.L.Ha

The higher TAMM-DANCOFF approximation theoretical context and phenomenological aspects

NUCLEAR STRUCTURE 40Ca; calculated quadrupole-quadrupole residual interaction parameters, odd-even mass differences and energy shifts using Higher Tamm-Dancoff approximation.

doi: 10.1142/S0218301308009732
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2007BO19      Phys.Rev. C 75, 054618 (2007)

L.Bonneau, T.Kawano, T.Watanabe, S.Chiba

Nucleon direct-semidirect radiative capture with Skyrme-Hartree-Fock-BCS bound states

NUCLEAR REACTIONS 122Sn, 132Sn, 208Pb, 238U(n, γ), E< 20MeV; calculated direct-semidirect capture cross sections by calculating a transition amplitude to the Hartree-Fock-BCS bound states. Compared results to available data.

doi: 10.1103/PhysRevC.75.054618
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2007BO21      Phys.Rev. C 75, 064313 (2007)

L.Bonneau, P.Quentin, I.N.Mikhailov

Scission configurations and their implication in fission-fragment angular momenta

RADIOACTIVITY 252Cf(SF); calculated fission fragment spin distribution as a function of fragment total excitation energy using Skyrme-Hartree-Fock plus BCS-pairing formalism.

doi: 10.1103/PhysRevC.75.064313
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2007BO23      Phys.Rev. C 76, 014304 (2007)

L.Bonneau, P.Quentin, K.Sieja

Ground-state properties of even-even N = Z nuclei within the Hartree-Fock-BCS and higher Tamm-Dancoff approaches

NUCLEAR STRUCTURE A=56-100; calculated ground state properties for well deformed even-even N=Z nuclei using Hartree-Fock-BCS and Higher Tamm-Dancoff Approximation.

doi: 10.1103/PhysRevC.76.014304
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2007BO29      Phys.Rev. C 76, 024320 (2007)

L.Bonneau, P.Quentin, P.Moller

Global microscopic calculations of ground-state spins and parities for odd-mass nuclei

doi: 10.1103/PhysRevC.76.024320
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2006BO16      Phys.Rev. C 74, 014301 (2006)

L.Bonneau

Fission modes of 256Fm and 258Fm in a microscopic approach

NUCLEAR STRUCTURE 256,258Fm; calculated potential energy surfaces, deformation, fission modes. Skyrme-Hartree-Fock-plus-BCS model.

doi: 10.1103/PhysRevC.74.014301
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2005BO29      Phys.Rev. C 72, 014311 (2005)

L.Bonneau, P.Quentin

Fission barriers and fission paths of the 70Se nucleus within a microscopic approach

NUCLEAR STRUCTURE 70Se; calculated fission barrier energies, fission paths, role of asymmetric deformation. Constrained Skyrme-Hartree-Fock plus BCS approach.

doi: 10.1103/PhysRevC.72.014311
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2004BO34      Eur.Phys.J. A 21, 391 (2004)

L.Bonneau, P.Quentin, D.Samsoen

Fission barriers of heavy nuclei within a microscopic approach

NUCLEAR STRUCTURE 230,232Th, 234,236U, 240Pu, 248,250,252,254,256Cf, 240,242,244,246,248,250,252,254,256,258,260,262,264Fm, 252,254,256No; calculated deformation energy, fission barrier features. Constrained Hartree-Fock plus pairing approach.

doi: 10.1140/epja/i2003-10224-x
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