NSR Query Results
Output year order : Descending NSR database version of April 29, 2024. Search: Author = H.Mei Found 18 matches. 2024YA01 Nucl.Phys. A1042, 122794 (2024) Electromagnetic properties of Λ hypernuclei with a beyond relativistic mean-field approach
doi: 10.1016/j.nuclphysa.2023.122794
2018ME04 Phys.Rev. C 97, 064318 (2018) H.Mei, K.Hagino, J.M.Yao, T.Motoba Disappearance of nuclear deformation in hypernuclei: A perspective from a beyond-mean-field study NUCLEAR STRUCTURE 30,31Si; calculated projected energy curves, J, π, potential energy curves, low-lying positive-parity states, and B(E2) for 31S hypernucleus and 30Si core nucleus. Microscopic particle-rotor model. Discussed role of beyond-mean-field effects on deformation of 31Si hypernucleus. Comparison with experimental data for 30Si.
doi: 10.1103/PhysRevC.97.064318
2017ME07 Phys.Rev. C 96, 014308 (2017) H.Mei, K.Hagino, J.M.Yao, T.Motoba Transition from vibrational to rotational character in low-lying states of hypernuclei NUCLEAR STRUCTURE 144,146,148,150,152,154Sm; calculated total energy in the mean-field approximation as a function of quadrupole deformation, yrast levels, E(first 4+)/E(first 2+) using multireference covariant density functional theory (MR-CDFT), and compared with experimental data. 145,147,149,151,153,155Sm; calculated levels, J, π, B(E2) of hypernuclei, probability of the dominant components of configurations using microscopic particle-core coupling scheme based on the covariant density functional theory.
doi: 10.1103/PhysRevC.96.014308
2017WU06 Phys.Rev. C 95, 034309 (2017) X.Y.Wu, H.Mei, J.M.Yao, X.-R.Zhou Beyond-mean-field study of the hyperon impurity effect in hypernuclei with shape coexistence NUCLEAR STRUCTURE 36,37Ar; calculated total energy, potential energy curves (PECs), correlation between the hyperon Λ separation energy and density overlap, quadrupole deformation parameters (β2, βΛ), rms radii of hypernuclei, neutrons, protons, and the hyperon, proton skin, density distribution contours for normal-deformed and superdeformed (SD) bands in 36Ar and 37Ar hypernucleus. 36Ar, 37Ar; calculated total energies for the mean-field states (MF), particle number projected states (N and Z), and particle number and angular momentum projected states, levels, J, π, collective wave functions of normal and superdeformed band in 36Ar and hypernucleus 37Ar using PC-F1 and PCY-S2 interactions. Relativistic mean field and beyond based on a relativistic point-coupling energy functional. Comparison with available experimental data.
doi: 10.1103/PhysRevC.95.034309
2016ME01 Phys.Rev. C 93, 011301 (2016) Generator coordinate method for hypernuclear spectroscopy with a covariant density functional NUCLEAR STRUCTURE 21Ne; calculated levels, J, π for hypernucleus using generator coordinate method (GCM) based on beyond-mean-field method with the particle number and angular momentum projections. Hypernuclear collective and single-particle excitations. Comparison to experimental levels spectrum for the 20Ne core nucleus.
doi: 10.1103/PhysRevC.93.011301
2016ME09 Phys.Rev. C 93, 044307 (2016) H.Mei, K.Hagino, J.M.Yao, T.Motoba Low-energy hypernuclear spectra within a microscopic particle-rotor model with a relativistic point-coupling hyperon-nucleon interaction NUCLEAR STRUCTURE 13C; calculated levels, J, π, B(E2), Λ binding energy, energy splittings of hypernucleus with and without the scaled NΛ interaction using microscopic particle-rotor model with relativistic point-coupling hyperon-nucleon interactions PCY-S1, PCY-S2, PCY-S3, PCY-S4 and LO. Contour plots for the difference between the theoretical and the experimental hyperon binding energies as function of coupling strength parameters. Analyzed effect of tensor coupling strength. Comparison of level spectrum with experimental data.
doi: 10.1103/PhysRevC.93.044307
2015ME04 Phys.Rev. C 91, 064305 (2015) H.Mei, K.Hagino, J.M.Yao, T.Motoba Microscopic study of low-lying spectra of Λ hypernuclei based on a beyond-mean-field approach with a covariant energy density functional NUCLEAR STRUCTURE 12,13C, 20,21Ne, 154,155Sm; calculated levels, J, π, B(E2), potential energy surfaces as function of deformation parameter β, wave function amplitudes, configuration of 13C, 21Ne, 155Sm hypernuclei, and 12C, 20Ne, 154Sm core nuclei. Spin-orbit splitting. Microscopic particle-rotor model (MPRM) based on a covariant energy density functional theory, and coupled-channel equations. Comparison with experimental data, and with other theoretical calculations.
doi: 10.1103/PhysRevC.91.064305
2015XU05 Phys.Rev. C 91, 024327 (2015) W.X.Xue, J.M.Yao, K.Hagino, Z.P.Li, H.Mei, Y.Tanimura Triaxially deformed relativistic point-coupling model for Λ hypernuclei: A quantitative analysis of the hyperon impurity effect on nuclear collective properties NUCLEAR STRUCTURE 17O, 31Si, 33S, 41Ca; calculated total energy, kinetic energy, rms radii of neutrons, protons, hyperon, energy of the lowest three single-particle states of hypernuclei. 9Be, 16O, 28Si, 32S, 40Ca, 51V, 89Y, 139La, 208Pb; calculated binding energies in single-Λ hypernuclei. 51V; calculated total energy for hypernucleus as a function of deformation parameter β. 25,27Mg, 31Si; calculated levels, J, π, potential-energy surfaces (PESs) of hypernuclei in (β, γ) plane. 24,26Mg, 30Si; calculated levels, J, π, potential energy surfaces (PES) in (β, γ) plane; deduced impurity effect of Λs and Λp hyperon on the energies and B(E2) for first 2+ states. Microscopic particle rotor model (PRM) with relativistic EDF, and triaxially deformed relativistic mean-field (RMF) approach. Comparison with experimental data.
doi: 10.1103/PhysRevC.91.024327
2014ME16 Phys.Rev. C 90, 064302 (2014) H.Mei, K.Hagino, J.M.Yao, T.Motoba Microscopic particle-rotor model for the low-lying spectrum of Λ hypernuclei NUCLEAR STRUCTURE 9Be; calculated levels, J, π, B(E2) for the 9Be hypernucleus by coupling the hyperon to low-lying states of the core nucleus 8Be. Particle-rotor model with a meanfield approach and generator coordinate method (GCM). Comparison with experimental results.
doi: 10.1103/PhysRevC.90.064302
2013FU06 Phys.Rev. C 87, 054305 (2013) Y.Fu, H.Mei, J.Xiang, Z.P.Li, J.M.Yao, J.Meng Beyond relativistic mean-field studies of low-lying states in neutron-deficient krypton isotopes NUCLEAR STRUCTURE 68,70,72,74,76,78,80,82,84,86Kr; calculated levels, J, π, energy surface contours in β-γ plane, B(E2), ρ2(E0), quadrupole deformation, oblate-triaxial-prolate transition, shape coexistence, configuration mixing, angular momentum projection. Beyond relativistic mean-field (RMF) theory PC-PK1 force. Comparison with other calculations, and available experimental data.
doi: 10.1103/PhysRevC.87.054305
2012ME01 J.Phys.(London) G39, 015107 (2012) H.Mei, Y.Huang, J.M.Yao, H.Chen Systematic study of the symmetry energy coefficient in finite nuclei
doi: 10.1088/0954-3899/39/1/015107
2012ME06 Phys.Rev. C 85, 034321 (2012) H.Mei, J.Xiang, J.M.Yao, Z.P.Li, J.Meng Rapid structural change in low-lying states of neutron-rich Sr and Zr isotopes NUCLEAR STRUCTURE 88,90,92,94,96,98,100Sr, 90,92,94,96,98,100,102Zr; calculated level energies and B(E2) for first 2+ states, level energies and B(E0) for first excited 0+ states, E(first 4+)/E(first 2+), moment of inertia, mass parameters, proton radii, isotope shifts, single-particle energies, configuration mixing, total energy surfaces in β-γ plane, wave function distributions. Five-dimensional collective Hamiltonian with parameters from relativistic mean-field and nonrelativistic Skyrme-Hartree-Fock calculations using PC-PK1 and SLy4 interactions, density functional theory. Comparison with experimental data.
doi: 10.1103/PhysRevC.85.034321
2012ME10 Int.J.Mod.Phys. E21, 1250024 (2012) H.Mei, Z.P.Li, J.M.Yao, K.Hagino Impurity effect of Λ hyperon on shape-coexistence nucleus 44S in the energy functional based colletive Hamiltonian NUCLEAR STRUCTURE 44,45S; calculated excitation energies, J, π, effect of Λ hyperon. Nonrelativistic Skyrme energy density functional, comparison with available data.
doi: 10.1142/S0218301312500243
2011YA01 Phys.Rev. C 83, 014308 (2011) J.M.Yao, H.Mei, H.Chen, J.Meng, P.Ring, D.Vretenar Configuration mixing of angular-momentum-projected triaxial relativistic mean-field wave functions. II. Microscopic analysis of low-lying states in magnesium isotopes NUCLEAR STRUCTURE 20,22,24,26,28,30,32,34,36,38,40Mg; calculated potential energy curves for ground state as a function of β2 deformation parameter, B(E2) values for first 2+ states, excitation energies and spectroscopic quadrupole moments of the first 2+ and 4+ states, binding energy contour maps in β-γ plane, probability distributions of the collective wave functions in β-γ plane. Constrained self-consistent relativistic mean-field calculations for triaxial shapes (3DAMP+GCM). Comparison with previous axial 1DAMP+GCM calculations, and with experimental data.
doi: 10.1103/PhysRevC.83.014308
2011YA04 Int.J.Mod.Phys. E20, 482 (2011) J.M.Yao, Z.X.Li, J.Xiang, H.Mei, J.Meng Low-lying states in 30Mg: A beyond relativistic mean-field investigation NUCLEAR STRUCTURE 30Mg; calculated quadrupole energy surfaces, probability distributions, energies, B(E2). Gogny force, comparison with experimental data.
doi: 10.1142/S0218301311017880
2009ME22 Chin.Phys.C 33, Supplement 1, 101 (2009) Single-particle resonance states of 122Zr in relativistic mean-field theory combined with real stabilization method NUCLEAR STRUCTURE 122Zr; calculated averaged density, energies and widths of resonance states. RMDF-RSM approach.
doi: 10.1088/1674-1137/33/S1/033
2007CH73 Phys.Rev. C 76, 044325 (2007) H.Chen, H.Mei, J.Meng, J.M.Yao Binding energy differences of mirror nuclei in a time-odd triaxial relativistic mean field approach NUCLEAR STRUCTURE 15N, 15,17O, 17F, 27Al, 27Si, 39K, 39,41Ca, 41Sc; calculated binding energies, charge, neutron and proton rms radii, γ and Β deformations. Used time-odd triaxial relativistic mean field approach.
doi: 10.1103/PhysRevC.76.044325
2006CH56 Int.J.Mod.Phys. E15, 1513 (2006) H.Chen, H.Mei, J.Meng, J.M.Yao Mirror nuclei 12B and 12N in time-odd triaxial relativistic mean field theory NUCLEAR STRUCTURE 12B, 12N; calculated binding energies, radii. 12N; calculated single-particle levels energies. Time-odd triaxial relativistic mean field theory.
doi: 10.1142/S0218301306004983
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