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NSR database version of April 27, 2024.

Search: Author = J.Lachkar

Found 17 matches.

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2019DU20      Phys.Rev. C 100, 044607 (2019)

M.Dupuis, G.Haouat, J.-P.Delaroche, E.Bauge, J.Lachkar

Challenging microscopic structure and reaction models for nucleon scattering off nuclei in the A=208 mass region

NUCLEAR REACTIONS 206,207,208Pb, 209Bi(n, n), (n, n'), E=7.50, 9.50, 11.50, 13.00, 13.50, 15.50 MeV; measured neutron time of flight spectra, En, In, differential σ(θ, E) at the CEA DAM Ile-de-France tandem accelerator laboratory; deduced ground state and transition radial neutron and proton densities, differential σ(θ, E) for the low-lying states in 206,207,208Pb, 209Bi. 206Pb(n, n), E=3.04, 3.11, 3.19, 3.47, 3.97, 4.2, 4.6, 5, 7, 21.6 MeV; 208Pb(n, n), E=1, 1.1, 1.2, 1.27, 1.34, 1.43, 1.59, 1.65, 1.75, 2.5, 3.4, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.97, 8.5, 9, 9.97, 11, 13.9, 14.6, 16.9, 20, 22, 24, 26 MeV; 209Bi(n, n), E=6.5, 7, 7.14, 8, 8.4, 9, 9.99, 10.4, 11, 12, 14, 14.5, 14.76, 15.2, 20, 21.6, 24 MeV; 206Pb(n, n'), E=2.45, 2.53, 2.71, 2.94, 3.4, 4.02, 4.6, 6, 7, 8, 8.5 MeV; 207Pb(n, n'), E=3.56, 5.5, 6, 6.49, 7, 8.01, 8.5 MeV; 208Pb(n, n'), E=3.96, 5.5, 6, 6.49, 7, 8.01, 8.5, 11, 20, 22, 25.7 MeV; 209Bi(n, n'), E=3.06, 3.55, 7, 14 MeV; 206Pb(p, p'), E=19.64, 24.5, 35 MeV; analyzed previous experimental differential σ(θ, E) data for elastic scattering and inelastic scattering, the latter to the first 2+, 3-, 4+, 5- and 7- states in 206Pb, 5/2+ to 7/2+ multiplet in 207Pb, first 2+, 3- and 5- states in 208Pb, and 3/2+ to 15/2+ multiplet in 209Bi. All analyses based on the semimicroscopic Jeukenne, Lejeune, Mahaux (JLM-B) folding model and DWBA formalism, with the nuclear diagonal and transition densities calculated from quasiparticle random phase approximation QRPA model with the Gogny D1S interaction.

NUCLEAR STRUCTURE 208Pb; calculated level energies and B(Eλ) values for the first 3-, 5-, 2+, 4+ and 6+ states. 206Pb; calculated level energies, B(Eλ) values, and neutron-to-proton reduced matrix element ratio for the first 2+, 4+, 7-, 2-, 3- states and the 2+ quadrupole surface vibrational state. QRPA predictions with the Gogny D1S force. Comparison with experimental values.

doi: 10.1103/PhysRevC.100.044607
Citations: PlumX Metrics

2000BA17      Phys.Rev. C61, 034306 (2000); Erratum Phys.Rev. C61, 059902 (2000)

E.Bauge, J.P.Delaroche, M.Girod, G.Haouat, J.Lachkar, Y.Patin, J.Sigaud, J.Chardine

Neutron Scattering from the 155, 156, 157, 158, 160Gd Isotopes: Measurements and analyses with a deformed, semimicroscopic optical model

NUCLEAR REACTIONS 155,156,157,158,160Gd(n, n), (n, n'), E=2.5, 4.1 MeV; measured σ(θ), σ(E, θ). 155,156,157,158,160Gd deduced deformation, related features. Comparison with optical model, HFB predictions.

doi: 10.1103/PhysRevC.61.034306
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22726.

1991SH04      J.Phys.(London) G17, 525 (1991)

R.E.Shamu, J.Barnes, S.M.Ferguson, G.Haouat, J.Lachkar

The Limitations of the One-Channel Phenomenological Optical Model

NUCLEAR REACTIONS 208Pb(n, n), E=7.5-13.5 MeV; analyzed σ(θ); deduced model limitations. Optical model.

doi: 10.1088/0954-3899/17/4/011
Citations: PlumX Metrics

1982HA34      Nucl.Sci.Eng. 81, 491 (1982)

G.Haouat, J.Lachkar, Ch.Lagrange, J.Jary, J.Sigaud, Y.Patin

Neutron Scattering Cross Sections for 232Th, 233U, 235U, 238U, 239Pu, and 242Pu between 0.6 and 3.4 MeV

NUCLEAR REACTIONS 232Th, 233,235,238U, 239,242Pu(n, n), (n, n'), E=0.6-3.4 MeV; measured σ(θ); deduced optical model parameters. 232Th, 235,238U, 239Pu levels deduced β2, β4.

doi: 10.13182/NSE82-A21439
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset21782.

1982PA14      Nucl.Phys. A382, 31 (1982)

Y.Patin, F.Cocu, J.Lachkar, J.Sigaud, G.Haouat, S.Cierjacks

Etude de la Dissipation d'Energie dans la Fission de 234U a l'Aide de la Reaction 233U(d, pf)

NUCLEAR REACTIONS, Fission 233U(d, pF), E=13.5 MeV; measured Ep, fragment kinetic energies, velocities; deduced fragment total kinetic energy, variance vs excitation. 234U deduced energy dissipation, scission configuration changes, fragmentation mode. Liquid drop model.

doi: 10.1016/0375-9474(82)90438-9
Citations: PlumX Metrics

1981DE02      Phys.Rev. C23, 136 (1981)

J.P.Delaroche, G.Haouat, J.Lachkar, Y.Patin, J.Sigaud, J.Chardine

Deformations, Moments, and Radii of 182,183,184,186W from Fast Neutron Scattering

NUCLEAR REACTIONS 182,183,184,186W(n, n), (n, n'), E=3.4 MeV; measured σ(En, θ); deduced optical model parameters, volume integrals. 182,183,184,186W deduced deformation parameters, rms radii, quadrupole, hexadecapole moments.

doi: 10.1103/PhysRevC.23.136
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22513.

1980LA18      Nucl.Phys. A345, 193 (1980)

Ch.Lagrange, J.Lachkar, G.Haouat, R.E.Shamu, M.T.McEllistrem

Quadrupole Moments and Nucleon Excitation Strengths in Even-A Sm Isotopes

NUCLEAR REACTIONS 148,152,154Sm(n, n), (n, n'), E=7 MeV; 148,152,154Sm(p, p), (p, p'), E=16 MeV; analyzed σ(θ); deduced optical model parameters. 148,152,154Sm levels deduced β2.

doi: 10.1016/0375-9474(80)90418-2
Citations: PlumX Metrics

1979HA31      Phys.Rev. C20, 78 (1979)

G.Haouat, J.Lachkar, C.Lagrange, M.T.McEllistrem, Y.Patin, R.E.Shamu, J.Sigaud

Optical Potential and Nuclear Deformation for Even Nd Isotopes from Fast Neutron Scattering

NUCLEAR REACTIONS 142,144,146,148,150Nd(n, n), (n, n'), E=7.0 MeV; measured σ(En, θ). 142,144,146,148,150Nd deduced optical model parameters, β2.

doi: 10.1103/PhysRevC.20.78
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset21338.

1979PA05      Nucl.Instrum.Methods 160, 471 (1979)

Y.Patin, S.Cierjacks, J.Lachkar, J.Sigaud, G.Haouat, F.Cocu

Fission Fragment Energy-Velocity Correlation Measurements for the 233U(d, pf)-Reaction

NUCLEAR REACTIONS 233U(d, pF), E=13.5 MeV; measured fragment E, velocity correlation for pre-, post-neutron emission; deduced average number of neutrons, mean values, rms widths of pre-neutron-emission distributions.

doi: 10.1016/0029-554X(79)90203-9
Citations: PlumX Metrics

1977MC02      Phys.Rev. C15, 927 (1977)

M.T.McEllistrem, R.E.Shamu, J.Lachkar, G.Haouat, C.Lagrange, Y.Patin, J.Sigaud, F.Cocu

Deformation Effects in Neutron Scattering from the Sm Isotopes

NUCLEAR REACTIONS 148,150,152,154Sm(n, n), (n, n'), E=7 MeV; measured σ(θ); deduced coupled-channels potential parameters. 148,150,152,154Sm deduced β2.

doi: 10.1103/PhysRevC.15.927
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset21337.

1976LA12      Phys.Rev. C14, 933 (1976)

J.Lachkar, M.T.McEllistrem, G.Haouat, Y.Patin, J.Sigaud, F.Cocu

Isospin and Strong Coupling Effects in Neutron Scattering from Even-A Se Isotopes

NUCLEAR REACTIONS 76,82Se(n, n), (n, n'), E=6, 8, 10 MeV; 78,80Se(n, n), (n, n'), E=8 MeV; measured σ(θ). 78,76,80,82Se deduced β. Coupled channel analysis. Enriched targets.

doi: 10.1103/PhysRevC.14.933
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20426.

1975LA10      J.Phys.(Paris), Suppl.Lett. 36, L-79 (1975)

J.Lachkar, Y.Patin, J.Sigaud

Etude Experimentale des Effects Dynamiques dans la Fission de 240Pu a Basse Energie

NUCLEAR REACTIONS 239Pu(d, F), E=11.8 MeV; measured p-fragment-mass coin, E(fragment mass). 239Pu(n, F), E=thermal; measured E(fragment mass).

doi: 10.1051/jphyslet:0197500360407900
Citations: PlumX Metrics

1974LA07      Nucl.Phys. A222, 333 (1974)

J.Lachkar, J.Sigaud, Y.Patin, G.Haouat

Etude des Niveaux de 56Fe Excites par les Reactions (p, p'γ) et (n, n'γ)

NUCLEAR REACTIONS 56Fe(p, p'γ), Ep=6.5, 8.5, 10, 11 MeV; measured Ep', Eγ, p'-γ coincidences. 56Fe(n, n'γ), En=4.8-8.8 MeV; measured Eγ, σ(En, Eγ, θ). 56Fe deduced levels, J, π, branching ratios. Ge(Li), Si(Li) detectors. Natural target.

doi: 10.1016/0375-9474(74)90395-9
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20474.

1974LA23      Nucl.Sci.Eng. 55, 168 (1974)

J.Lachkar, J.Sigaud, Y.Patin, G.Haouat

Gamma-Ray-Production Cross Sections for the 56Fe(n, n'γ) Reaction from 2.5- to 14.1-MeV Neutron Energies

NUCLEAR REACTIONS 56Fe(n, n'γ), E=2.5-14.1 MeV; measured σ(E, Eγ, θ). 56Fe deduced levels, J, π, γ-branching ratio.

doi: 10.13182/NSE74-A28205
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20474.

1969HA30      Rev.Phys.Appl. 4, 281 (1969)

G.Haouat, J.Lachkar, J.Sigaud

Etude et Realisation d'un Spectrometre 'γ'Multimode

RADIOACTIVITY 232Th; measured Eγ. Ge(Li) detector.

doi: 10.1051/rphysap:0196900402028100
Citations: PlumX Metrics

1967AM02      Compt.Rend. 264B, 487 (1967)

G.Ambrosino, J.Lachkar

Evidence of the Effect of Extra-Nuclear Fields on the Anisotropy in the Case of Thulium-170 Chloride

NUCLEAR STRUCTURE 170Tm; measured not abstracted; deduced nuclear properties.

1965LA06      Compt.Rend. 260, 2184 (1965)

J.Lachkar, J.Perchereau, G.Ambrosino

Etude de la Transition β(2-→2+) de l'Or 198. Spectre β et Correlation Angulaire avec le Rayon γ de 412 keV

NUCLEAR STRUCTURE 198Au; measured not abstracted; deduced nuclear properties.

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