NSR Query Results
Output year order : Descending NSR database version of May 3, 2024. Search: Author = J.Lachkar Found 17 matches. 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
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
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
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
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
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
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
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
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
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
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
1975LA10 J.Phys.(Paris), Suppl.Lett. 36, L-79 (1975) 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
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
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
1969HA30 Rev.Phys.Appl. 4, 281 (1969) Etude et Realisation d'un Spectrometre 'γ'Multimode RADIOACTIVITY 232Th; measured Eγ. Ge(Li) detector.
doi: 10.1051/rphysap:0196900402028100
1967AM02 Compt.Rend. 264B, 487 (1967) 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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