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NSR database version of April 11, 2024.

Search: Author = L.L.Liu

Found 11 matches.

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2024LI04      Phys.Rev. C 109, 014603 (2024)

L.-L.Liu, Y.-Y.Liu, X.-L.Huang, J.-M.Wang, Y.-J.Chen, N.-Ch.Shu, Zh.-G.Ge

Influence of the spin cut-off parameter on the isomeric cross-section ratio of the (n, 2n) reaction within the Huizenga-Vandenbosch method

doi: 10.1103/PhysRevC.109.014603
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2023CH25      Chin.Phys.C 47, 054103 (2023)

Y.-J.Chen, Y.Su, L.-L.Liu, G.Dong, Z.Ge, N.Shu, X.Wang

Microscopic study of neutron-induced fission process of 239Pu via zero- and finite-temperature density functional theory

NUCLEAR REACTIONS 239Pu(n, F), E<15 MeV; calculated potential energy surface (PES) using zero and finite-temperature density functional theory (FT-DFT) with the Skyrme force; deduced the variations of the least-energy fission path, fission barrier, total kinetic energy, scission line, and mass distribution of fission fragments with the incident neutron energy.

doi: 10.1088/1674-1137/acbe2c
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2023PO07      Phys.Rev. C 107, 054616 (2023)

K.Pomorski, B.Nerlo-Pomorska, C.Schmitt, Z.G.Xiao, Y.J.Chen, L.L.Liu

Fourier-over-spheroid shape parametrization applied to nuclear fission dynamics

NUCLEAR REACTIONS 235U(n, F), E = thermal; calculated fission fragments mass and charge yields, total kinetic energy (TKE) of fission fragments, post-fission neutron multiplicities, fission fragment excitation energy. 3D Langevin code, based on the Fourier-over-spheroid (FoS) shape parametrization, the LSD+Yukawa folded macroscopic-microscopic potential energy landscape, a procedure to account for charge equilibration at scission, and a method to compute the excitation energy available in the primary fragments. Comparison to experimental data.

RADIOACTIVITY 246,248,250,252,254,256,258,260,262Fm(SF); calculated fission fragment mass yields distribution, total kinetic energy (TKE) of fission fragments, post-fission neutron multiplicities. Comparison to experimental data.

NUCLEAR STRUCTURE 236U, 252,254,256,258,260,262Fm; calculated potential energy surfaces. 240Pu; calculated energy at scission as a function of the heavy fragment charge number, Wigner distribution probability of the fission fragment charge number.

doi: 10.1103/PhysRevC.107.054616
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2023PO11      Acta Phys.Pol. B54, 9-A2 (2023)

K.Pomorski, A.Dobrowolski, B.Nerlo-Pomorska, M.Warda, A.Zdeb, J.Bartel, H.Molique, C.Schmitt, Z.G.Xiao, Y.J.Chen, L.L.Liu

Fission Fragment Mass and Kinetic Energy Yields of Fermium Isotopes

NUCLEAR STRUCTURE 246,248,250,252,254,256,258,260,262Fm; analyzed available data; deduced the post-fission neutron multiplicities, potential energy surfaces.

doi: 10.5506/APhysPolB.54.9-A2
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2022CH15      Chin.Phys.C 46, 024103 (2022)

Y.-J.Chen, Y.Su, G.Dong, L.-L.Liu, Z.Ge, X.Wang

Energy density functional analysis of the fission properties of 240Pu: The effect of pairing correlations

NUCLEAR STRUCTURE 240Pu; calculated the potential energy surfaces up to the scission point using the density functional theory with different pairing strengths to investigate the effect of pairing correlations on its fission properties; deduced enhancement in the pairing correlations lowers the barrier heights, isomeric state, and ridge between the symmetric and asymmetric fission valleys significantly.

doi: 10.1088/1674-1137/ac347a
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2022LI16      Phys.Rev. C 105, 034614 (2022)

L.-L.Liu, X.-Z.Wu, Y.-J.Chen, C.-W.Shen, Z.-G.Ge, Z.-X.Li

Impact of nuclear dissipation on the fission dynamics within the Langevin approach

NUCLEAR REACTIONS 237,238,239,240,241,242,243,244Am, 235,236,237,238,239,240,241,242Pu, 233,234,235,236,237,238,239,240Np, 232,233,234,235,236,237,238,239U(n, F), E=14 MeV; calculated fission fragments mass distributions, total kinetic energy (TKE) distributions, influences of the strength of friction tensor on the fragments distributions. Studied systematic dependence of the averaged TKE on the Coulomb parameter. Three-dimensional Langevin approach. Comparison to the evaluated data from ENDF/B-VIII.0 and results calculated with GEF model.

doi: 10.1103/PhysRevC.105.034614
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2022LI65      Chin.Phys.C 46, 124101 (2022)

L.-L.Liu, X.-Z.Wu, Y.-J.Chen, C.-W.Shen, Z.-X.Li, Z.-G.Ge, N.-C.Shu

Influence of the neck parameter on the fission dynamics within the two-center shell model parametrization

NUCLEAR REACTIONS 235U(n, F), E=14 MeV; calculated the total kinetic energy (TKE) distributions.

doi: 10.1088/1674-1137/ac8867
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2021CH39      Chin.Phys.C 48, 084101 (2021)

Y.-J.Chen, Y.-Y.Liu, L.-L.Liu, F.-Y.Wang, Y.-X.Zhang

Understanding the isoscaling relationship in the fissioning system with evaluated data

NUCLEAR REACTIONS 233,235U(n, F), E<20 MeV; analyzed available data; deduced isoscaling parameters in the fissioning systems. ENDF/B-VIII.0 and JEFF-3.3 evaluated libraries.

doi: 10.1088/1674-1137/ac0035
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2021LI21      Phys.Rev. C 103, 044601 (2021)

L.-L.Liu, Y.-J.Chen, X.-Z.Wu, Z.-X.Li, Z.-G.Ge, K.Pomorski

Analysis of nuclear fission properties with the Langevin approach in Fourier shape parametrization

NUCLEAR REACTIONS 235U(n, F), E=14 MeV; calculated deformation energy contour for 236U in (q2, q3) plane, total kinetic energy (TKE) as function of the heavy fission fragment, mass distribution of fission fragments, mass-energy correlation of the fission fragments, correlations between the distance of the mass centers of two fragments and the heavy fragment mass at the scission point, correlation between neck parameter and the elongation parameter at the scission point. 233,236,238U, 239Pu(n, F), E=14 MeV; calculated fragment mass distributions, total kinetic energy (TKE) and the probability distributions. Langevin approach for nuclear fission within the Fourier shape parametrization, with the potential energy from macroscopic-microscopic model based on Lublin-Strasbourg drop model and Yukawa-folded potential. Comparison with experimental data, and with evaluated data in ENDF/B-VIII.0.

doi: 10.1103/PhysRevC.103.044601
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2019LI16      Phys.Rev. C 99, 044614 (2019)

L.-L.Liu, X.-Z.Wu, Y.-J.Chen, C.-W.Shen, Z.-X.Li, Z.-G.Ge

Study of fission dynamics with a three-dimensional Langevin approach

NUCLEAR REACTIONS 233,238U, 239Pu(n, F), E=14 MeV; 235U(n, F), E=thermal, 14, 25, 35, 45, 55 MeV; calculated fragment mass distributions, total kinetic energy (TKE) of heavy mass fragments, fission time distribution, and elongation and averaged nuclear shape at scission for 235U+n at 14 MeV, potential energy surface for 236U. Three-dimensional Langevin model, with the potential energy surface calculated with the macroscopic-microscopic model based on two-center shell model. Comparison with experimental data, results of GEF code and the evaluated data in ENDF/B-VIII.0 library.

doi: 10.1103/PhysRevC.99.044614
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2016HU12      Chin.Phys.C 40, 084102 (2016)

X.L.Huang, M.-X.Kang, L.-L.Liu, J.-M.Wang, X.-J.Chen

The excitation functions of 187Re(n, 2n) 186m, gRe reactions

NUCLEAR REACTIONS 187Re(n, 2n), E=14.8 MeV; analyzed available data; calculated σ for ground and isomeric states using UNF code; deduced s new ground state value for the emission probability.

doi: 10.1088/1674-1137/40/8/084102
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Note: The following list of authors and aliases matches the search parameter L.L.Liu: , L.L.LIU