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NSR database version of April 26, 2024.

Search: Author = H.L.Wang

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2023YA15      Phys.Rev. C 107, 054304 (2023)

J.Yang, J.Dudek, I.Dedes, A.Baran, D.Curien, A.Gaamouci, A.Gozdz, A.Pedrak, D.Rouvel, H.L.Wang

Islands of oblate hyperdeformed and superdeformed superheavy nuclei with D_3h point group symmetry in competition with normal-deformed D_3h states: "Archipelago" of D_3h-symmetry islands

NUCLEAR STRUCTURE ³⁰²Og, ²⁹²124, ³¹⁸130; calculated contours of projections of the total nuclear energy surfaces on (α22, α20), (α33, α20), ( α33, α22) and (α30, α20) planes, deformation parameters. N=166-206;Z=116-138; calculated single-particle neutron and proton energy levels, shell energies defined as sums of the Strutinsky and pairing correction energies, D_3h-symmetric hyperdeformed, superdeformed, and normal-deformed configurations. Found three separate islands of nuclei with D3h symmetry ("archipelago of three islands") differing by their average α20 < 0 deformations. Macroscopic-microscopic method with a realistic phenomenological Woods-Saxon potential.

doi: 10.1103/PhysRevC.107.054304
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2022GU04      Phys.Lett. B 828, 137010 (2022)

S.Guo, X.H.Zhou, C.M.Petrache, E.A.Lawrie, S.H.Mthembu, Y.D.Fang, H.Y.Wu, H.L.Wang, H.Y.Meng, G.S.Li, Y.H.Qiang, J.G.Wang, M.L.Liu, Y.Zheng, B.Ding, W.Q.Zhang, A.Rohilla, K.R.Muhki, Y.Y.Yang, H.J.Ong, J.B.Ma, S.W.Xu, Z.Bai, H.L.Fan, J.F.Huang, J.H.Li, J.H.Xu, B.F.Lv, W.Hua, Z.G.Gan, Y.H.Zhang

Probing the nature of the conjectured low-spin wobbling bands in atomic nuclei

NUCLEAR REACTIONS ¹⁷⁵Lu(¹⁸O, 6n)¹⁸⁷Au, E=108 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, partial level scheme, B(M1)/B(E2), polarization, mixing ratios, low-spin wobbling bands. The Heavy Ion Research Facility in Lanzhou (HIRFL), China.

doi: 10.1016/j.physletb.2022.137010
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2022ME01      Phys.Rev. C 105, 014315 (2022)

H.-Y.Meng, H.-L.Wang, M.-L.Liu

Resolution of a possible misinterpretation of the nuclear excitation mode along the yrast line: An investigation on the evolution of rotation and vibration

NUCLEAR STRUCTURE ^{98,100,102,104,106,108}Mo, ^{100,102,104,106,108,110}Ru, ^{102,104,106,108,110,112}Pd, ^{104,106,108,110,112,114}Cd, ^{118,120,122,124,126,128}Ba, ^{156,158,160,162}Gd, ^{158,160,162,164}Dy, ^{170,172,174,176}Yb, ^{156,158,160,162,164,166,174,176,178,180}Hf, ^{160,162,164,166,168,170,180,182,184,186}W, ^{236,238,240,242}Pu; calculated centipede-like E-GOS curves along the yrast sequences for ¹⁰²Ru, ¹¹⁰Cd, ¹⁵⁶Gd, and ¹⁶⁰Dy, β₂ deformations, kinematic moments of inertia, total Routhian surfaces in (β₂, γ) plane, and aligned angular momenta; extracted ground-state β₂ deformations from measured electric quadrupole moments and reduced transition probabilities B(E2), E(first 4+)/E(first 2+) ratios and P factors. Centipede-like E-GOS (E-gamma over spin) empirical approach for evolution between vibration and rotation in nuclei as a function of spin. Comparison with experimental data.

doi: 10.1103/PhysRevC.105.014315
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2022ME02      Phys.Rev. C 105, 014329 (2022)

H.-Y.Meng, H.-L.Wang, M.-L.Liu

Landscape appreciation of systematic structure properties in even-even nuclei along the valley of stability

NUCLEAR STRUCTURE Z=6-100; calculated N_pN_n/(N_p+N_n) factors for even-even nuclei, plotted E(first 4+)/E(first 2+) ratio from literature. Z=10-118; calculated ground-state equilibrium deformations β₂, γ, β₄, binding energies, S(2p), S(2n) for even-even nuclei along the β-stability line. Improved potential-energy-surface (PES) approach with fitted macroscopic model parameters and compared with available experimental data, and other theoretical calculations.

COMPILATION Z=2-118; compiled and plotted experimental T_1/2 of ground states, S(2n) and S(2p) for 59 Z-chains; discussed observed trends and anomalous behavior.

doi: 10.1103/PhysRevC.105.014329
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2022PO02      Phys.Rev. C 105, L041301 (2022)

W.S.Porter, B.Ashrafkhani, J.Bergmann, C.Brown, T.Brunner, J.D.Cardona, D.Curien, I.Dedes, T.Dickel, J.Dudek, E.Dunling, G.Gwinner, Z.Hockenbery, J.D.Holt, C.Hornung, C.Izzo, A.Jacobs, A.Javaji, B.Kootte, G.Kripko-Koncz, E.M.Lykiardopoulou, T.Miyagi, I.Mukul, T.Murbock, W.R.Plass, M.P.Reiter, J.Ringuette, C.Scheidenberger, R.Silwal, C.Walls, H.L.Wang, Y.Wang, J.Yang, J.Dilling, A.A.Kwiatkowski

Mapping the N=40 island of inversion: Precision mass measurements of neutron-rich Fe isotopes

ATOMIC MASSES ^{63,64,65,65m,66,67,68,69,69m,70}Fe; measured time-of-flight; deduced mass excess, S(2n), pairing gap. Systematics of S(2n) values for Z=24–28 isotope chains. Compared to mean-field calculations employing recent Woods-Saxon Hamiltonian and results from the multishell valence-space in-medium similarity renormalization group (VS-IMSRG). Comparison to recommended values from AME2020. TITAN (TRIUMF’s Ion Trap for Atomic and Nuclear science) Multiple-Reflection Time-of- Flight Mass Spectrometer.

doi: 10.1103/PhysRevC.105.L041301
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2022YA11      Phys.Rev. C 105, 034348 (2022)

J.Yang, J.Dudek, I.Dedes, A.Baran, D.Curien, A.Gaamouci, A.Gozdz, A.Pedrak, D.Rouvel, H.L.Wang, J.Burkat

Exotic shape symmetries around the fourfold octupole magic number N=136: Formulation of experimental identification criteria

NUCLEAR STRUCTURE N=122-164; calculated single-particle neutron levelsand Routhians as functions of α₃₀, α₃₁, α₃₂ and α₃₃ octupole deformations; deduced very large neutron shell gaps at N=136 for all the four octupole deformations, and N=136 as a "universal or fourfold octupole magic number". ^{208,212,216,218}Pb, ^{218,220,222,224}Ra, ²²⁰Po, ²²²Rn, ²²⁴Ra, ²²⁶Th; calculated contours of projections of the total nuclear energy surfaces on (α₃₀, α₂₀) planes for all the isotopes, (α₃₁, α₂₀), (α₃₂, α₂₀), and (α₃₃, α₂₀) planes for ²¹⁸Pb, (α₃₂, α₂₀) planes for ^218,220, ^222,224Ra, and (α₃₁, α₂₀) and (α₃₂, α₂₀) planes for ²²⁰Po, ²²²Rn, ²²⁴Ra, ²²⁶Th. Discussed exotic point-group symmetries C_2ν, D_2d, T_d (tetrahedral symmetry), and D_3h in order to formulate spectroscopic criteria for experimental identifications through analysis of collective rotational bands generated by the symmetries. Macroscopic-microscopic method in multidimensional deformation spaces to analyze the expected exotic symmetries and octupole shape instabilities, tetrahedral point group symmetry, and realistic nuclear mean-field theory using phenomenological Woods-Saxon Hamiltonian combined with the Monte Carlo approach. Comparison with available experimental nuclear octupole deformations.

doi: 10.1103/PhysRevC.105.034348
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2022YA26      Phys.Rev. C 106, 054314 (2022)

J.Yang, J.Dudek, I.Dedes, A.Baran, D.Curien, A.Gaamouci, A.Gozdz, A.Pedrak, D.Rouvel, H.L.Wang

Exotic symmetries as stabilizing factors for superheavy nuclei: Symmetry-oriented generalized concept of nuclear magic numbers

NUCLEAR STRUCTURE Z=82-138, N=164-258; calculated single-particle proton and neutron energies, spherical orbital energies and shell gaps. ³¹⁴Og; calculated Monte Carlo simulated probability distributions of single-particle level position uncertainties for protons and neutrons. ³⁰⁸122; calculated proton and neutron single-particle energies as functions of the octupole deformations α₃₀, α₃₁, α₃₂ and α₃₃ in the center of Z=114-130, N=166-206 region. ³¹⁰Fl, ³¹⁴Og, ³¹⁸122, ³²²126, ³²⁶130; calculated potential-energy projection contours as functions of quadrupole deformation parameter α₂₀ and octupole deformation parameters α₃₀, α₃₁, α₃₂ and α₃₃ for ³¹⁰Fl, and α₃₂ for others. ^{296,298,300,302,304,306,308,310,312,314,316}Sg, ^{304,306,308,310,312,314,316,318,320,322,324}Fl, ³¹⁰Fl, ^{314,316,318,320,322,324,326,328,330,332,334}124, ³¹²Lv, ³¹⁴Og, ³¹⁶120, ³¹⁸122, ³²⁰124, ³²²126, ³²⁴128, ³²⁶130, ³²⁸132, ³³⁰134, ³³²136; calculated nuclear shell energies as functions of octupole deformation parameters α₃₀, α₃₁, α₃₂ and α₃₃, comparisons of nuclear shell-energies as functions of quadrupole deformation α₂₀, and octupole deformation parameters α₃₀ (pear-shaped), α₃₁, α₃₂, and α₃₃ for Z-114, N=190-210, and for N=196, Z=114-136 nuclei. ^{296,298,300,302,304,306,308,310,312,314,316}Sg, ^{314,316,318,320,322,324,326,328,330,332,334}124; calculated energies at the equilibrium before and after allowing the α₃₂ minimization. ^{280,282,284,286,288,290,292,294,296,298,300,302,304,306,308,310,312,314,316,318,320}Fl, ^{282,284,286,288,290,292,294,296,298,300,302,304,306,308,310,312,314,316,318,320,322}Lv, ^{284,286,288,290,292,294,296,298,300,302,304,306,308,310,312,314,316,318,320,322,324}Og, ^{286,288,290,292,294,296,298,300,302,304,306,308,310,312,314,316,318,320,322,324,326}120, ^{288,290,292,294,296,298,300,302,304,306,308,310,312,314,316,318,320,322,324,326,328}122, ^{290,292,294,296,298,300,302,304,306,308,310,312,314,316,318,320,322,324,326,328,330}124, ^{292,294,296,298,300,302,304,306,308,310,312,314,316,318,320,322,324,326,328,330,332}126, ^{294,296,298,300,302,304,306,308,310,312,314,316,318,320,322,324,326,328,330,332,334}128, ^{296,298,300,302,304,306,308,310,312,314,316,318,320,322,324,326,328,330,332,334,336}130; predicted quadrupole deformation α₂, components of octupole deformation α₃₀, α₃₁, α₃₂ and α₃₃ for the ground states, energy differences between the nearest quadrupole-shape minima and octupole-deformed configurations; deduced spherical or octupole deformed, with dominance of octupole-tetrahedral geometry for a majority of superheavy nuclei, which lowers the ground-state energy by up to 8 MeV. Realistic phenomenological mean-field approach with the deformed Woods-Saxon potential and macroscopic-microscopic method to examine impact of exotic shapes of nuclei associated with the four-fold octupole degrees of freedom on the stabilization of superheavy nuclei in the mass range of Z=114-130, and N=166-206.

doi: 10.1103/PhysRevC.106.054314
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2022ZH18      Phys.Scr. 97, 025303 (2022)

H.-H.Zhang, H.-L.Wang, H.i-Y.Meng, M.-L.Liu, B.Ding

Impact of the Coriolis interaction on the potential landscape evolution across the nuclide chart: Systematic total-Routhian-surface calculations

NUCLEAR STRUCTURE Z>20; analyzed available data; deduced rotational structure properties along the yrast line for 766 observed even-even nuclei in thenuclide chart by means of the approach of pairing-deformation self-consistent total Routhian surface calculations in three-dimensional deformation space.

doi: 10.1088/1402-4896/ac49ae
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2021BE23      Phys.Rev.Lett. 127, 112501 (2021)

S.Beck, B.Kootte, I.Dedes, T.Dickel, A.A.Kwiatkowski, E.M.Lykiardopoulou, W.R.Plass, M.P.Reiter, C.Andreoiu, J.Bergmann, T.Brunner, D.Curien, J.Dilling, J.Dudek, E.Dunling, J.Flowerdew, A.Gaamouci, L.Graham, G.Gwinner, A.Jacobs, R.Klawitter, Y.Lan, E.Leistenschneider, N.Minkov, V.Monier, I.Mukul, S.F.Paul, C.Scheidenberger, R.I.Thompson, J.L.Tracy, Jr., M.Vansteenkiste, H.-L.Wang, M.E.Wieser, C.Will, J.Yang

Mass Measurements of Neutron-Deficient Yb Isotopes and Nuclear Structure at the Extreme Proton-Rich Side of the N=82 Shell

ATOMIC MASSES ^{150,151,152,153,154,155,156}Yb; measured frequencies, TOF; deduced mass excess values. Comparison with systematics, AME2020 evaluation. TITAN's multiple-reflection time-of-flight mass spectrometer (MR-TOF-MS).

RADIOACTIVITY ¹⁵¹Yb(IT); measured decay products; deduced excitation energy.

doi: 10.1103/PhysRevLett.127.112501
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2021DI09      Phys.Rev. C 104, 064304 (2021)

B.Ding, C.M.Petrache, S.Guo, E.A.Lawrie, I.Wakudyanaye, Z.H.Zhang, H.L.Wang, H.Y.Meng, D.Mengoni, Y.H.Qiang, J.G.Wang, C.Andreoiu, A.Astier, A.Avaa, T.Back, R.A.Bark, D.Bazzacco, A.Boso, T.D.Bucher, B.Cederwall, M.V.Chisapi, H.L.Fan, F.Galtarossa, F.H.Garcia, A.Goasduff, G.Jaworski, P.Jones, I.Kuti, J.J.Lawrie, G.S.Li, R.Li, M.L.Liu, Z.Liu, B.Lomberg, B.F.Lv, T.Marchlewski, L.Mdletshe, L.Msebi, S.H.Mthembu, D.R.Napoli, A.Netshiya, M.F.Nkalanga, J.N.Orce, K.Ortner, F.Recchia, S.Riccetto, A.Rohilla, T.W.Seakamela, M.Siciliano, M.A.Sithole, D.Sohler, J.Srebrny, D.Testov, A.Tucholski, J.J.Valiente-Dobon, F.Wentzel, K.Whitmore, Y.H.Zhang, K.K.Zheng, X.H.Zhou, B.R.Zikhali

Signature splitting of the g_7/2 [404] 7/2⁺ bands in ¹³¹Ba and ¹³³Ce

NUCLEAR REACTIONS ¹²²Sn(¹³C, 4nγ)¹³¹Ba, E=65 MeV from XTU Tandem accelerator at LNL-Legnaro; ¹²⁵Te(¹²C, 4nγ)¹³³Ce, E=57 MeV from separated sector cyclotron of iThemba LABS; measured Eγ, Iγ, γγ-coin, γγ(θ) using GALILEO array of 25 Compton-suppressed HPGe detectors, EUCLIDES silicon ball for charged particles and the Neutron Wall array for neutrons for ¹³¹Ba at Legnaro, and AFRODITE array of eight Compton-suppressed clover detectors for ¹³³Ce at iThemba LABS. ¹³¹Ba, ¹³³Ce; deduced high-spin levels, multipolarities, J, π, bands, quasiparticle alignments, dynamical moments of inertia, signature splittings and configurations. Comparison with cranked shell model and quasiparticle-plus-triaxial-rotor model calculations.

doi: 10.1103/PhysRevC.104.064304
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2021GA18      Phys.Rev. C 103, 054311 (2021)

A.Gaamouci, I.Dedes, J.Dudek, A.Baran, N.Benhamouda, D.Curien, H.L.Wang, J.Yang

Exotic toroidal and superdeformed configurations in light atomic nuclei: Predictions using a mean-field Hamiltonian without parametric correlations

NUCLEAR STRUCTURE ²⁸Si, ^28,30,38,40Si, ^32,40,42S, ³⁶Ar, ⁴⁰Ca, ⁴⁴Ti, ⁴⁸Cr, ⁵⁶Ni, ^52,56Fe, ^82,84,100Zr; A≈30-50; calculated nuclear potential energy surfaces in (α₂₀, α₄₀) and (β₂cos(γ+30°)), (β₂sin(γ+30°)) planes using mean-field calculations in multidimensional deformation spaces with phenomenological Woods-Saxon Hamiltonian, Monte-Carlo Hamiltonian parameter adjustments based on doubly-magic spherical nuclei: ¹⁶O, ⁴⁰Ca, ⁴⁸Ca, ⁵⁶Ni, ⁹⁰Zr, ¹³²Sn, ¹⁴⁶Gd and ²⁰⁸Pb, parametric-correlation removal; tested parametric uncertainties, theoretical prediction uncertainty propagation with nucleon numbers; generated nuclear shape coexistence, low-energy toroidal shape excitations, superdeformed oblate and prolate shapes, exotic shapes and isomers. Comparison with available experimental information for deformation parameters.

doi: 10.1103/PhysRevC.103.054311
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2019DU22      Acta Phys.Pol. B50, 685 (2019)

J.Dudek, I.Dedes, J.Yang, A.Baran, D.Curien, T.Dickel, A.Gozdz, D.Rouvel, H.L.Wang

High-rank Symmetries in Nuclei: Challenges for Prediction Capacities of the Nuclear Mean-field Theories

NUCLEAR STRUCTURE ²²⁶Th; calculated total nuclear energy surfaces. Discussed the possible structure of rotational bands in cases of tetrahedral and octahedral nuclear symmetries. Mean-field approach with the phenomenological “universal” Woods–Saxon Hamiltonian.

doi: 10.5506/aphyspolb.50.685
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2018CH21      Chin.Phys.C 42, 054101 (2018)

Q.-Z.Chai, W.-J.Zhao, M.-L.Liu, H.-L.Wang

Calculation of multidimensional potential energy surfaces for even-even transuranium nuclei: systematic investigation of the triaxiality effect on the fission barrier

NUCLEAR STRUCTURE ^{236,238,240,242,244,246}Pu, ^{242,244,246,248,250}Cm, ^250,252Cf, ²⁵⁴Rf; calculated proton and neutron single-particle levels, two-dimensional potential energy surfaces, microscopic energy, deformation parameters. Comparison with available data.

doi: 10.1088/1674-1137/42/5/054101
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2018CH28      Prog.Theor.Exp.Phys. 2018, 053D02 (2018)

Q.-Z.Chai, W.i-J.Zhao, H.-L.Wang, M.-L.Liu, F.-R.Xu

The triaxiality and Coriolis effects on the fission barrier in isovolumic nuclei with mass number A = 256 based on multidimensional total Routhian surface calculations

NUCLEAR STRUCTURE ¹⁴⁰Gd, ²⁵²Cf, ²⁵⁶Cm, ²⁵⁶Cf, ²⁵⁶Fm, ²⁵⁶No, ²⁵⁶Rf, ²⁵⁶Sg; calculated potential energy surfaces for the static fission barriers and ground-state deformation parameters, proton and neutron single-particle levels near the Fermi surface, pairing gaps of proton and neutron, rotational frequencies, total energies. Comparison with available data.

doi: 10.1093/ptep/pty049
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2018CH39      Int.J.Mod.Phys. E27, 1850050 (2018)

Q.Z.Chai, W.J.Zhao, H.L.Wang

Similar alignment based on total-Routhian-surface approach in an α-decay chain from ²¹⁶Po to ²⁷²Cn

NUCLEAR STRUCTURE ²⁷²Cn, ²⁶⁸Ds, ²⁶⁴Hs, ²⁶⁰Sg, ²⁵⁶Rf, ²⁵²No, ²⁴⁸Fm, ²⁴⁴Cf, ²⁴⁰Cm, ²³⁶Pu, ²³²U, ²²⁸Th, ²²⁴Ra, ²²⁰Rn, ²¹⁶Po; calculated angular momentum as a function of the rotational frequency for α-decay chain nuclei, single-particle energies using total Routhian surface approach in multidimensional deformation space.

doi: 10.1142/S0218301318500507
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2017DI02      Phys.Rev. C 95, 024301 (2017)

B.Ding, Z.Liu, D.Seweryniak, P.J.Woods, H.L.Wang, J.Yang, H.L.Liu, C.N.Davids, M.P.Carpenter, T.Davinson, R.V.F.Janssens, R.D.Page, A.P.Robinson, J.Shergur, S.Sinha, S.Zhu, X.D.Tang, J.G.Wang, T.H.Huang, W.Q.Zhang, M.D.Sun, X.Y.Liu, H.Y.Lu

First identification of excited states in ¹¹⁷Ba using the recoil-β-delayed proton tagging technique

NUCLEAR REACTIONS ⁶⁴Zn(⁵⁸Ni, 3n2p), E=305 MeV; measured Eγ, Iγ, (delayed protons)γ-coin, recoil-βp decay tagging using fragment mass analyzer (FMA), and Gammasphere array at ATLAS-ANL facility. ¹¹⁷Ba; deduced high-spin levels, J, π, bands, alignments, Routhian energies, configurations. Comparison with cranked shell-model calculations. Level-spacing systematics for negative- and positive-parity bands in ^{117,119,121,123,125,127,129}Ba.

doi: 10.1103/PhysRevC.95.024301
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2016WA25      Phys.Rev. C 94, 044316 (2016)

K.L.Wang, J.G.Wang, X.H.Zhou, M.L.Liu, Y.H.Qiang, S.Guo, Z.Y.Zhang, B.F.Lv, B.S.Gao, Y.H.Zhang, Y.Zheng, G.S.Li, Y.D.Fang, B.Ding, W.Q.Zhang, K.K.Zheng, J.S.Wang, Y.Y.Yang, Z.Bai, P.Ma, S.L.Jin, J.B.Ma, F.F.Duan, X.Zhang, L.Jiao, H.L.Wang

Lifetime measurement of the first excited state in ³⁷S

RADIOACTIVITY ³⁷P(β^-)[³⁷P beam from ⁹Be(⁴⁰Ar, X), E=70 MeV/nucleon at HIRFL-RIBLL1-Lanzhou facility]; measured Eγ, Iγ, Eβ, γγ-, βγ-coin, level half-life by βγ(t) fast-timing technique. ³⁷S; deduced levels, B(E2) for 7/2- to 3/2- transition, and compared to those in ³⁵Si, ³⁹Ar, ⁴¹Ca.

doi: 10.1103/PhysRevC.94.044316
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2016YA04      Prog.Theor.Exp.Phys. 2016, 063D03 (2016)

J.Yang, H.-L.Wang, Q.-Z.Chai, M.-L.Liu, F.-R.Xu

Evolution of shape and rotational structure in neutron-deficient ^118-128Ba nuclei

NUCLEAR STRUCTURE ^{118,120,122,124,126,128}Ba; calculated deformation Routhian curves, LN pairing gaps of protons and neutrons, angular momenta. Comparison with available data.

doi: 10.1093/ptep/ptw074
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2016YA10      Phys.Rev. C 94, 024310 (2016)

Q.Yang, H.-L.Wang, M.-L.Liu, F.-R.Xu

Characteristics of collectivity along the yrast line in even-even tungsten isotopes

NUCLEAR STRUCTURE ^{160,162,164,166,168,170,172,174,176,178,180,182,184,186,188,190}W; calculated ground-state deformation parameters, Routhian curves as function of β₂ and γ deformations, kinematic moments of inertia, alignment plots for high-spin yrast levels. Centipede-like E-GOS(E-Gamma Over Spin) curves. Total-Routhian-surface calculations in (β₂, γ, β₄) deformation space. Comparison with available experimental data taken mainly from NNDC databases.

doi: 10.1103/PhysRevC.94.024310
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2015CH08      Chin.Phys.C 39, 024101 (2015)

Q.-Z.chai, H.-L.Wang, Q.Yang, M.-L.Liu

Spin-dependent γ softness or triaxiality in even-even ^132-138Nd nuclei

NUCLEAR STRUCTURE ^{132,134,136,138}Nd; calculated deformation parameters, total deformation Routhian curves, energy levels, odd-even energy staggering. Total-Routhian-surface calculations, comparison with available data.

doi: 10.1088/1674-1137/39/2/024101
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2015WA22      Prog.Theor.Exp.Phys. 2015, 073D03 (2015)

H.-L.Wang, S.Zhang, M.-L.Liu, F.-R.Xu

Nuclear stiffness evolutions against axial and non-axial quadrupole deformations in even-A osmium isotopes

NUCLEAR STRUCTURE ^{162,164,166,168,170,172,174,176,178,180,182,184,186,188,190,192,194,196,198,200}Os; calculated potential energy surfaces, deformation parameters, neutron and proton Fermi energy levels, pairing gaps.

doi: 10.1093/ptep/ptv099
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2015WA25      Phys.Rev. C 92, 024303 (2015)

H.-L.Wang, J.Yang, M.-L.Liu, F.-R.Xu

Evolution of ground-state quadrupole and octupole stiffnesses in even-even barium isotopes

NUCLEAR STRUCTURE ^{112,114,116,118,120,122,124,126,128,130,132,134,136,138,140,142,144,146,148,150}Ba; calculated ground-state deformation parameters β₂, γ, β₃, potential energy curves as function of (β₂, γ, β₄) and (β₂, β₃, β₄, β₅) deformation, quadrupole and octupole stiffnesses, single-particle Fermi energies, pairing gaps, energies of first excited 2+, 4+, 3- and the second 2+ states. ¹¹⁴Ba; calculated single-particle levels, energy curves. Potential energy surface method with standard Liquid drop model and Lipkin-Nogami pairing model. Discussed importance of nonaxial and reflection-asymmetric deformation degrees of freedom in the calculation of potential energy surfaces, especially for actinides and superheavy nuclei. Comparison with available experimental data.

doi: 10.1103/PhysRevC.92.024303
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2015YA14      Chin.Phys.C 39, 094102 (2015)

Q.Yang, H.-L.Wang, Q.-Z.Chai, M.-L.Liu

Total Routhian surface calculations of triaxial or γ-soft properties in even- A N = 76 isotones with 54 ≤ Z ≤ 68

NUCLEAR STRUCTURE ¹³⁰Xe, ¹³²Ba, ¹³⁴Ce, ¹³⁶Nd, ¹³⁸Sm, ¹⁴⁰Gd, ¹⁴²Dy, ¹⁴⁴Er; calculated total Routhian surfaces (TRS), deformation parameters; deduced triaxiality or γ-softness in high-spin states as well as ground states. Comparison with available data.

doi: 10.1088/1674-1137/39/9/094102
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2014WA25      Chin.Phys.C 38, 074101 (2014)

H.-L.Wang, Q.-Z.Chai, J.-G.Jiang, M.-L.Liu

Rotational properties in even-even superheavy ^254-258Rf nuclei based on total-Routhian-surface calculations

NUCLEAR STRUCTURE ^254,256,258Rf; calculated single-particle levels, deformation parameters, moment of inertia, band crossing using total Routhian surface method. Comparison with experimental data.

doi: 10.1088/1674-1137/38/7/074101
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2013XU04      Acta Phys.Pol. B44, 271 (2013)

F.R.Xu, H.L.Liu, Y.Shi, H.L.Wang, P.M.Walker, S.Frauendorf, J.C.Pei

New Studies on the Aspects of Nuclear Shapes

NUCLEAR STRUCTURE ¹⁵⁸Er, ^252,250Fm, ^254,252No, ^256,254Rf, ^66,68,70,72Ge; calculated moment of inertia, quadrupole deformation parameters, tilted crancking total Routhians.

doi: 10.5506/APhysPolB.44.271
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2012WA25      Prog.Theor.Phys.(Kyoto) 128, 363 (2012)

H.-L.Wang, H.L.Liu, F-R.Xu, C.-F.Jiao

Onset of Possible Octupole Deformation in Rotational ^{106, 108}Te Nuclei

NUCLEAR STRUCTURE ^106,108Te; calculated TRS, quadrupole and octupole deformation parameters. Total Routhian surface calculations.

doi: 10.1143/PTP.128.363
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2012WA27      Phys.Scr. 86, 035201 (2012)

H.-L.Wang, H.-L.Liu, F.-R.Xu

Total Routhian surface calculations of octupole properties in neutron-deficient U isotopes

NUCLEAR STRUCTURE ^{220,222,224,226,228,230}U, ²²⁶Th, ²³⁰Pu; calculated total Routhian surfaces, ground state deformation parameters; deduced evolution of octupole properties with increasing nucleon and rotational frequency. Comparison with available data.

doi: 10.1088/0031-8949/86/03/035201
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2010WA02      Chin.Phys.Lett. 27, 022301 (2010)

H.-L.Wang, L.-T.Song, W.-J.Zhao, Z.-X.Liu, Y.-H.Zhang, X.-H.Zhou, Y.-X.Guo, X.-G.Lei

Observation of a Possible New Isomer in ¹⁷⁵Ir

RADIOACTIVITY ^175,176Ir(EC) [from ¹⁴⁶Nd(³⁵Cl, X), E=210 MeV/nucleon]; measured reaction products, x-rays, Eγ, Iγ; deduced decay constants, T_1/2, long-lived isomeric state in ¹⁷⁵Ir.

doi: 10.1088/0256-307X/27/2/022301
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2010ZH41      Chin.Phys.C 34, 1609 (2010)

W.-J.Zhao, Y.-Q.Zhang, H.-L.Wang, L.-T.Song, L.-L.Li

Production cross sections of the superheavy nucleus 117 based on the dinuclear system model

NUCLEAR REACTIONS ²⁴⁸Cm(⁴⁵Sc, X2n), (⁴⁵Sc, X3n), (⁴⁵Sc, X4n), ²⁴⁴Pu(⁵¹V, X2n), (⁵¹V, X3n), (⁵¹V, X4n), ²³⁸U(⁵⁵Mn, X2n), (⁵⁵Mn, X3n), (⁵⁵Mn, X4n), ²³²Th(⁵⁹Co, X2n), (⁵⁹Co, X3n), (⁵⁹Co, X4n), E<60 MeV/nucleon; ²⁰⁹Bi(⁸²Se, X2n), (⁸²Se, X3n), (⁸²Se, X4n)²⁸⁹Ts/²⁹⁰Ts, ²⁴⁷Bk(⁴⁸Ca, X2n), (⁴⁸Ca, X3n), (⁴⁸Ca, X4n)²⁹¹Ts/²⁹²Ts/²⁹³Ts, E<60 MeV/nucleon; calculated production σ for 2n-4n evaporation channels for superheavy nuclei. Dinuclear system model.

doi: 10.1088/1674-1137/34/10/011
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2007HU27      High Energy Phys. and Nucl.Phys. (China) 31, 357 (2007)

W.Hua, X.-H.Zhou, Y.-H.Zhang, Y.-X.Guo, X.-G.Lei, C.-Y.Xie, L.-T.Song, H.-L.Wang

Study of Multi-Quasiparticle Excited States in ¹³⁹Ce

2006WA37      High Energy Phys. and Nucl.Phys. (China), Supplement 2, 30, 177 (2006)

H.-L.Wang, Y.-H.Zhang, X.-H.Zhou, Y.-X.Guo, X.-G.Lei, S.-W.Xu, Y.-X.Xie, Y.-B.Xing, Y.Zheng, M.-L.Liu, L.-T.Song, C.-Y.Xie, H.-P.Yu, W.-T.Guo

β⁺/EC Decay and Systematic Analysis of ^{176, 178}Ir

2006WA38      High Energy Phys. and Nucl.Phys. (China) 30, 201 (2006)

H.-L.Wang, Y.-H.Zhang, X.-H.Zhou, Y.-X.Guo, X.-G.Lei, Y.-X.Xie, S.-W.Xu, Y.-B.Xing, Y.Zheng, M.-L.Liu, C.-Y.Xie, L.-T.Song, P.Luo, H.-P.Yu, W.-T.Guo, H.-J.Ding, Y.-N.Niu

β⁺/EC-Decay Study of ¹⁷⁶Ir Neutron-Deficient Isotope

2005WA25      Chin.Phys.Lett. 22, 2211 (2005)

H.-L.Wang, Y.-H.Zhang, X-H.Zhou, Y.-X.Guo, X.-G.Lei, S.-W.Xu, Y.-X.Xie, M.-L.Liu, Y.Zheng, Y.-B.Xing, C.-Y.Xie, L.-T.Song, P.Luo, H.-P.Yu, W.-T.Guo

Identification of New β-Delayed γ Rays and a Low-Spin Isomer in ¹⁷⁶Ir

RADIOACTIVITY ^176,176mIr(β⁺), (EC) [from ¹⁴⁶Nd(³⁵Cl, 5n)]; measured Eγ, Iγ, γγ-coin, T_1/2. ¹⁷⁶Os deduced levels, J, π. ¹⁷⁶Ir deduced low-spin isomeric state.

doi: 10.1088/0256-307X/22/9/020
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2005XI06      Phys.Rev. C 72, 044302 (2005)

C.Y.Xie, X.H.Zhou, Y.H.Zhang, Y.X.Guo, X.G.Lei, Y.Zheng, M.L.Liu, L.T.Song, H.L.Wang, W.T.Guo, H.P.Yu, L.H.Zhu, X.G.Wu, F.R.Xu

Low-spin signature inversion in the πh_9/2 (x) νi_13/2 oblate band of ¹⁹⁰Tl

NUCLEAR REACTIONS ¹⁶⁰Gd(³⁵Cl, 5n), E=167, 175 MeV; measured Eγ, Iγ, γγ-coin. ¹⁹⁰Tl deduced levels, J, π, configurations, rotational band, signature inversion. Total Routhian surface calculations.

doi: 10.1103/PhysRevC.72.044302
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2005YU06      Chin.Phys.Lett. 22, 1873 (2005)

H.-P.Yu, Y.-X.Gou, X.-H.Zhou, Y.-H.Zhang, X-G.Lei, P.Luo, M.-L.Liu, L.-T.Song, H.L.Wang, C.-Y.Xie, Y.Zheng, W.-T.Guo, L.-H.Zhu, X.-G.Wu

High-Spin States in Odd-Odd ¹⁴⁰Pr Nucleus

NUCLEAR REACTIONS ¹³⁰Te(¹⁴N, 4n), (¹⁴N, 5n), E=55-65 MeV; measured Eγ, Iγ, γγ-coin; deduced γ-ray excitation functions. ¹⁴⁰Pr deduced high-spin levels, J, π, configurations. Level systematics in neighboring nuclides discussed.

doi: 10.1088/0256-307X/22/8/014
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2005ZH30      J.Phys.(London) G31, S1545 (2005)

Y.H.Zhang, Y.D.Fang, G.de Angelis, N.Marginean, A.Gadea, D.R.Napoli, M.Axiotis, C.Rusu, T.Martinez, H.L.Wang, X.H.Zhou, W.T.Guo, M.L.Liu, Y.X.Guo, X.G.Lei, M.Oshima, Y.Toh, F.R.Xu

High-spin states of an odd-odd ¹⁸⁴Au nucleus

NUCLEAR REACTIONS ¹⁵⁹Tb(²⁹Si, 4n), E=140 MeV; measured Eγ, Iγ, γγ-coin. ¹⁸⁴Au deduced high-spin levels, J, π, configurations, signature inversion. GASP array.

doi: 10.1088/0954-3899/31/10/029
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2005ZH31      J.Phys.(London) G31, S1985 (2005)

X.H.Zhou, C.Y.Xie, Y.H.Zhang, Y.X.Guo, X.G.Lei, Y.Zheng, M.L.Liu, L.T.Song, H.L.Wang, W.T.Guo

First observation of low-spin signature inversion in the πh_9/2 (X) νi_13/2 oblate band

NUCLEAR REACTIONS ¹⁶⁰Gd(³⁵Cl, 5n), E=167 MeV; measured Eγ, Iγ, γγ-coin. ¹⁹⁰Tl deduced levels, J, π, configurations, rotational band signature inversion. Level systematics in neighboring isotopes discussed.

doi: 10.1088/0954-3899/31/10/115
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2004GA29      Eur.Phys.J. A 20, 385 (2004)

Z.G.Gan, J.S.Guo, X.L.Wu, Z.Qin, H.M.Fan, X.G.Lei, H.Y.Liu, B.Guo, H.G.Xu, R.F.Chen, C.F.Dong, F.M.Zhang, H.L.Wang, C.Y.Xie, Z.Q.Feng, Y.Zhen, L.T.Song, P.Luo, H.S.Xu, X.H.Zhou, G.M.Jin, Z.Ren

New isotope ²⁶⁵Bh

NUCLEAR REACTIONS ²⁴³Am(²⁶Mg, 4n), E=168 MeV; measured delayed (recoil)α-, αα-coin following residual nucleus decay; deduced evidence for ²⁶⁵Bh.

RADIOACTIVITY ^264,265Bh, ²⁶¹Db, ²⁵⁷Lr(α) [from ²⁴³Am(²⁶Mg, 4n) and subsequent decay]; measured decay products, Eα, Iα; deduced T_1/2.

doi: 10.1140/epja/i2004-10020-2
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2004GA62      High Energy Phys. and Nucl.Phys. (China) 28, 332 (2004)

Z.-G.Gan, H.-M.Fan, Z.Qin, X.-L.Wu, J.-S.Guo, X.-G.Lei, C.-F.Dong, H.-G.Xu, R.-F.Chen, F.-M.Zhang, B.Guo, H.-Y.Liu, H.-L.Wang, C.-Y.Xie, Z.-Q.Feng, Y.Zheng, L.-T.Song, P.Luo, H.-S.Xu, X.-H.Zhuo, G.-M.Jin, Z.-Z.Ren

First Observation for Isotope ²⁶⁵Bh(Z=107)

2004LU26      High Energy Phys. and Nucl.Phys. (China) 28, 495 (2004)

P.Luo, Y.-H.Zhang, X.-H.Zhou, M.-L.Liu, Y.-X.Guo, Z.Liu, X.-G.Lei, L.-T.Song, Y.Zheng, H.-L.Wang, H.-P.Yu, C.-Y.Xie, Y.-J.Ma, Y.Sasaki, K.Yamada, H.Ohshima, S.Yokose, M.Ishizuka, T.Komatsubara, K.Furuno

Experimental Observation of High Spin States in ¹³⁵La Nucleus

2004WA35      Phys.Rev. C 70, 064306 (2004)

H.L.Wang, Y.H.Zhang, X.H.Zhou, M.M.Ndontchueng, Y.X.Guo, X.G.Lei, M.L.Liu, L.Peng, C.Y.Xie, L.T.Song, H.P.Yu, Y.Zheng, W.T.Guo, S.X.Wen, L.H.Zhu, X.G.Wu, F.R.Xu

Observation of the πh_11/2 (X) νi_13/2 band in odd-odd ¹⁷⁰Re

NUCLEAR REACTIONS ¹⁴²Nd(³²S, 3np), E=155, 166 MeV; measured Eγ, Iγ, γγ-, (X-ray)γ-coin. ¹⁷⁰Re deduced high-spin levels, J, π, configurations. Level systematics in neighboring nuclides discussed.

doi: 10.1103/PhysRevC.70.064306
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2004WA36      High Energy Phys. and Nucl.Phys. (China), Supplement 1, 28, 47 (2004)

H.-L.Wang, Y.-H.Zhang, X.-H.Zhou, Y.-X.Guo, X.-G.Lei, M.-L.Liu, P.Luo, C.-Y.Xie, L.-T.Song, H.-P.Yu, Y.Zheng, W.-T.Guo, Z.Liu, L.-H.Zhu, S.-X.Wen, X.-G.Wu

Observation of πh_11/2(X)νi_13/2 Band in Doubly-Odd ¹⁷⁰Re and Its Systematic Analysis

2004WA38      High Energy Phys. and Nucl.Phys. (China) 28, 699 (2004)

H.-L.Wang, Y.-H.Zhang, X.-H.Zhou, Y.-X.Guo, X.-G.Lei, M.-L.Liu, P.Luo, C.-Y.Xie, L.-T.Song, H.-P.Yu, Y.Zheng, W.-T.Guo, Z.Liu, L.-H.Zhu, S.-X.Wen, X.-G.Wu

Experimental Study of High-Spin States in Odd-Odd ¹⁷⁰Re

2004YU12      High Energy Phys. and Nucl.Phys. (China) 28, 806 (2004)

H.-P.Yu, Y.-X.Guo, X.-G.Lei, Y.-H.Zhang, X.-H.Zhou, P.Luo, M.-L.Liu, L.-T.Song, H.-L.Wang, C.-Y.Xie, Y.Zheng, W.-T.Guo, L.-H.Zhu, X.-G.Wu

High-Spin Level Scheme of Odd-Odd ¹⁴⁰Pr Nucleus

2004ZH16      Chin.Phys.Lett. 21, 799 (2004)

Yu.-H.Zhang, H.-L.Wang, G.de Angelis, N.Marginean, A.Gadea, D.R.Napoli, M.Axiotis, C.Rusu, T.Martinez, X.-H.Zhou, W.-T.Guo, M.-L.Liu, X.-G.Lei, Y.-X.Guo, F.-R.Xu

Identification of Oblate Band in Odd-Odd ¹⁸⁴Au

NUCLEAR REACTIONS ¹⁵⁹Tb(²⁹Si, 4n), E=140 MeV; measured Eγ, Iγ, γγ-coin. ¹⁸⁴Au deduced high-spin levels, J, π, configurations, shape coexistence features. GASP array.

doi: 10.1088/0256-307X/21/5/010
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2004ZH38      Phys.Rev. C 70, 057303 (2004)

Y.H.Zhang, Y.D.Fang, G.de Angelis, N.Marginean, A.Gadea, D.R.Napoli, M.Axiotis, C.Rusu, T.Martinez, H.L.Wang, X.H.Zhou, W.T.Guo, M.L.Liu, Y.X.Guo, X.G.Lei, M.Oshima, Y.Toh

Properties of the πi_13/2 (X) νi_13/2 band in odd-odd ¹⁸⁴Au

NUCLEAR REACTIONS ¹⁵⁹Tb(²⁹Si, 4n), E=140 MeV; measured Eγ, Iγ, γγ-coin. ¹⁸⁴Au deduced high-spin levels, J, π, configurations, B(M1)/B(E2), signature inversion. GASP array.

doi: 10.1103/PhysRevC.70.057303
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2004ZH47      High Energy Phys. and Nucl.Phys. (China) 28, 907 (2004)

Y.-H.Zhang, H.-L.Wang, M.-L.Liu, X.-H.Zhou, W.-T.Guo, G.De Angelis, N.Marginean, A.Gadea, D.R.Napoli, M.Axiotis, C.Rusu, T.Martinez, F.-R.Xu

Investigation on Structural Properties of the πi_13/2(X)νi_13/22-qp Band in Odd-odd ¹⁸⁴Au

2004ZH49      High Energy Phys. and Nucl.Phys. (China) 28, 1045 (2004)

X.-H.Zhou, C.-Y.Xie, Y.-H.Zhang, Y.-X.Guo, X.-G.Lei, Y.Zheng, M.-L.Liu, L.-T.Song, H.-L.Wang, H.-P.Yu, P.Luo, W.-T.Guo, L.-H.Zhu, X.-G.Wu

Signature Inversion in the πh_9/2(X)νi_13/2 Oblate Band of ¹⁹⁰Tl

2003ZH38      Phys.Rev. C 68, 054313 (2003)

Y.H.Zhang, M.Oshima, Y.Toh, X.H.Zhou, M.Koizumi, A.Osa, A.Kimura, Y.Hatsukawa, T.Morikawa, M.Nakamura, M.Sugawara, H.Kusakari, T.Komatsubara, K.Furuno, H.L.Wang, P.Luo, C.S.Wu, F.R.Xu

Rotational bands and signature inversion in odd-odd ¹⁷²Re

NUCLEAR REACTIONS ¹⁴⁹Sm(²⁷Al, 4n), E=130, 135, 140, 150 MeV; measured Eγ, Iγ, γγ-, (X-ray)γ-coin, excitation function. ¹⁷²Re deduced high-spin levels, J, π, B(M1)/B(E2), configurations, signature inversion. Comparison with model predictions, energy level systematics.

doi: 10.1103/PhysRevC.68.054313
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