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NSR database version of April 11, 2024.

Search: Author = Y.Y.Cheng

Found 34 matches.

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2023PA19      Chin.Phys.C 47, 064102 (2023)

Y.-F.Pan, Y.-Y.Cheng, Y.Lu, H.Jiang, X.-R.Zhou, Y.-M.Zhao

Robustness of pair structures for nuclear yrast states

NUCLEAR STRUCTURE 28Si, 50Cr, 132Xe; calculated energy levels, J, π, quadrupole moments, yrast states using the nucleon-pair approximation (NPA) and shell-model effective interactions. Comparison with available data.

doi: 10.1088/1674-1137/acc1cc
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2023ZH14      Phys.Rev. C 107, 044310 (2023)

Z.H.Zhao, C.B.Li, K.Y.Ma, X.G.Wu, Y.Zheng, Y.K.Pan, J.L.Wang, H.C.Zhang, Y.C.Hao, X.F.Li, G.S.Li, S.H.Yao, C.Y.He, B.B.Yu, X.P.Cao, S.P.Hu, J.B.Lu, Y.J.Ma, D.Yang, H.D.Wang, G.Y.Liu, L.Li, C.Xu, Y.Y.Cheng

Possible antimagnetic rotational band in 114In

NUCLEAR REACTIONS 110Pd(7Li, 3n)114In, E=26 MeV; analyzed Eγ, Iγ, γγ-coin, γγ(θ)(DCO) data from an experiment reported by 2011Li43 in Eur. Phys. Jour. A 47, 191 (2011) at the HI-13 tandem accelerator of CIAE, Beijing. 114In; deduced high-spin levels, Jπ, multipolarities, bands, possible anti-magnetic rotational band, spherical configurations; predicted B(E2) and I2/B(E2) from classical particle-rotor model calculations. Systematics of yrast states in 102,104,106,108,110Ag and 104,106,108,110,112,114In.

doi: 10.1103/PhysRevC.107.044310
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2022CH13      Eur.Phys.J. A 58, 21 (2022)

Y.F.Chen, X.-R.Zhou, Q.B.Chen, Y.-Y.Cheng

Lambda binding energies in the Skyrme-Hartree-Fock approach with various ΛN interactions

NUCLEAR STRUCTURE 5,6He, 8He, 7,8,9Li, 7,8,9,10Be, 9,10,11,12B, 12,13,14C, 15,16N, 16O, 28Si, 32S, 40Ca, 51V, 89Y, 139La, 208Pb; calculated hypernuclei binding energies, deformation parameters, local mean fields in the framework of the Skyrme-Hartree-Fock (SHF) approach. Comparison with available data.

doi: 10.1140/epja/s10050-022-00672-3
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2022XU11      Phys.Rev. C 106, 044306 (2022)

H.-T.Xue, Q.B.Chen, X.-R.Zhou, Y.Y.Cheng, H.-J.Schulze

Deformation and hyperon halo in hypernuclei

NUCLEAR STRUCTURE 11,13,15,17,19,21,23C, 10Li, 11Be, 12B, 14N, 15O, 16F, 17Ne; calculated potential energy surface, deformation parameters for hypernucleus and Λ hyperon, Λ removal energy, density distributions of spherical and deformed Λ 1p states, rms radii. Deformed Skyrme-Hartree-Fock approach with combinations of the NN interactions SIII, SGII, SkI4 and the ΛN interactions LY1 and SLL4.

doi: 10.1103/PhysRevC.106.044306
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2021BA37      Phys.Rev. C 104, 034312 (2021)

Y.Bao, Y.Y.Cheng, X.-R.Zhou

Quadrupole phonon excitations and transition probabilities for low-lying states of neutron-rich Cd isotopes

NUCLEAR STRUCTURE 122,124,126,128,130,132,134,136,138Cd; calculated positive-parity levels, J, B(E2), overlap between the low-lying yrast state with and the phonon state using nucleon-pair approximation (NPA) of the shell model using the phenomenological Hamiltonian and effective interaction jj46. Comparison with available experimental data.

doi: 10.1103/PhysRevC.104.034312
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2020FA03      Eur.Phys.J. A 56, 11 (2020)

B.-C.Fang, W.-Y.Li, C.-F.Chen, J.-W.Cui, X.-R.Zhou, Y.-Y.Cheng

Impurity effects of Λ hyperons on pΛorbitals

doi: 10.1140/epja/s10050-019-00006-w
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2020JI05      Eur.Phys.J. A 56, 135 (2020)

Y.Jin, X.R.Zhou, Y.-Y.Cheng, H.-J.Schulze

Study of Ξ- hypernuclei in the Skyrme-Hartree-Fock approach

doi: 10.1140/epja/s10050-020-00143-7
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2019CH32      Phys.Rev. C 100, 014318 (2019)

Y.-Y.Cheng, J.-Ji.Shen, G.-J.Fu, X.-R.Zhou, Y.-M.Zhao, A.Arima

Nucleon-pair wave functions in a single-J shell

doi: 10.1103/PhysRevC.100.014318
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2019CH35      Phys.Rev. C 100, 024321 (2019)

Y.-Y.Cheng, H.Wang, J.-J.Shen, X.-R.Zhou, Y.-M.Zhao, A.Arima

Nucleon-pair picture of low-lying states in semi-magic and open-shell nuclei

NUCLEAR STRUCTURE 43,44,45,46,47,48Ca, 130Pd, 131Ag, 132Cd; calculated level energies vs spin for negative-parity yrast states of odd-mass Ca and positive-parity yrast states for even mass Ca isotopes, overlaps between one-dimensional nucleon-pair wave functions and corresponding shell-model wave functions, nucleon-pair wave functions using the framework of nucleon-pair approximation (NPA) of the shell model. Comparison with experimental data.

doi: 10.1103/PhysRevC.100.024321
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2019JI10      Prog.Theor.Exp.Phys. 2019, 123D03 (2019)

Y.Jin, C.F.Chen, X.-R.Zhou, Y.-Y.Cheng, H.-J.Schulze

Deformed K- nuclei in the Skyrme-Hartree-Fock approach

NUCLEAR STRUCTURE 8Be, 16O, 20Ne, 40Ca, 208Pb; calculated hypernuclei central kaon potential, kaon removal energies using a two-dimensional Skyrme–Hartree–Fock model with a KN Skyrme force.

doi: 10.1093/ptep/ptz141
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2018CH05      Phys.Rev. C 97, 024303 (2018)

Y.Y.Cheng, Y.M.Zhao, A.Arima

Nucleon-pair approximation with particle-hole excitations

NUCLEAR STRUCTURE 100Sn; calculated energies and B(E2) of the yrast states up to 6+ with both proton and neutron particle-hole excitations up to 4p-4h. Multiple-major-shell nucleon pair approximation (NPA) calculations with particle-hole excitations, where particles and holes are treated simultaneously.

doi: 10.1103/PhysRevC.97.024303
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2018FU06      Phys.Rev. C 97, 024339 (2018)

G.J.Fu, Y.Y.Cheng, Y.H.Zhang, P.Zhang, P.Shuai, Y.M.Zhao, M.Wang

New local mass relation for isobaric analogue states and isospin-nonconserving forces

ATOMIC MASSES A=20-60; A=41-52; derived a new local mass relation for isobaric analog states of four neighboring nuclei, and compared with AME-2012 and IAS-2014 evaluations; discussed empirical Coulomb energy formula and the isobaric multiplet mass equation (IMME), and odd-even staggering of the IMME coefficients.

doi: 10.1103/PhysRevC.97.024339
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2017BA11      Phys.Rev. C 95, 044310 (2017)

M.Bao, Y.Y.Cheng, Y.M.Zhao, A.Arima

Local mass relations and the NpNn scheme

NUCLEAR STRUCTURE Z=82-104, N=126-155; analyzed Castens NpNn scheme for nuclear masses, and charge radii of four neighboring nuclei. N=10-160; analyzed energies and B(E2) for the first 2+ states of four neighboring even-even nuclei.

doi: 10.1103/PhysRevC.95.044310
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2017CH44      J.Phys.(London) G44, 115102 (2017)

Y.Y.Cheng, H.Jiang, Y.M.Zhao, A.Arima

Improved mass extrapolations by the Garvey-Kelson relations

NUCLEAR STRUCTURE N=1-160; calculated binding energy uncertainties, separation energies. Comparison with AME95, AME03 mass tables.

doi: 10.1088/1361-6471/aa8a25
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2016CH30      Phys.Rev. C 94, 021301 (2016)

X.C.Chen, J.Zhao, C.Xu, H.Hua, T.M.Shneidman, S.G.Zhou, X.G.Wu, X.Q.Li, S.Q.Zhang, Z.H.Li, W.Y.Liang, J.Meng, F.R.Xu, B.Qi, Y.L.Ye, D.X.Jiang, Y.Y.Cheng, C.He, J.J.Sun, R.Han, C.Y.Niu, C.G.Li, P.J.Li, C.G.Wang, H.Y.Wu, Z.H.Li, H.Zhou, S.P.Hu, H.Q.Zhang, G.S.Li, C.Y.He, Y.Zheng, C.B.Li, H.W.Li, Y.H.Wu, P.W.Luo, J.Zhong

Evolution of octupole correlations in 123Ba

NUCLEAR REACTIONS 108Cd(19F, 3np), E=90 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO) at HI-13 tandem facility of the CIAE-Beijing. 123Ba; deduced high-spin levels, J, π, bands, multipolarity, B(E1)/B(E2) ratio. 123,125,145Ba; systematics of B(E1)/B(E2) ratios, theoretical and experimental energy displacements between the opposite-parity bands, octupole correlations, potential-energy surface contours in (β2, β3) plane. Comparison with predictions of multidimensionally-constrained relativistic mean-field (MDC-RMF) model, and cluster model based on dinuclear system.

doi: 10.1103/PhysRevC.94.021301
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2016CH31      Phys.Rev. C 94, 024307 (2016)

Y.Y.Cheng, Y.M.Zhao, A.Arima

Nucleon-pair states of even-even N=82 isotones

NUCLEAR STRUCTURE 134Te, 136Xe, 138Ba, 140Ce, 142Nd; calculated levels, J, π, B(E2), B(E3), magnetic dipole moments, first and second 6+ states. Framework of the nucleon-pair approximation (NPA) of the shell model, with full shell-model (SM) space and truncated NPA space. Comparison with experimental values taken from the ENSDF database.

doi: 10.1103/PhysRevC.94.024307
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2016CH32      Phys.Rev. C 94, 024321 (2016)

Y.Y.Cheng, C.Qi, Y.M.Zhao, A.Arima

Nucleon-pair states of even-even Sn isotopes based on realistic effective interactions

NUCLEAR STRUCTURE 104,106,108,128,126,124Sn; calculated levels, yrast states, J, π, B(E2), magnetic dipole moments, neutron-hole occupation number of the pseudo 13/2+ and 17/2- shells. Discussed seniority scheme. Monopole-optimized effective interactions based on the realistic CD-Bonn nucleon-nucleon potential, within the frameworks of the nucleon-pair approximation (NPA) and shell model (SM). Comparison with experimental values taken mainly from the ENSDF database.

doi: 10.1103/PhysRevC.94.024321
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2016FU05      Phys.Rev. C 94, 024312 (2016)

G.J.Fu, Y.Y.Cheng, H.Jiang, Y.M.Zhao, A.Arima

Odd-even staggering of binding energy for nuclei in the sd shell

NUCLEAR STRUCTURE 18,19,20,21,22,23,24,25F, 20,21,22,23,24,25,26,27,28Ne, 22,23,24,25,26,27,28,29Na, 24,25,26,27,28,29,30Mg, 26,27,28,29,30,31Al, 28,29,30,31,32,33,34Si, 30,31,32,33,34,35P, 32,33,34,35,36S, 34,35,36,37Cl, 36,37,38Ar, 38,39K; calculated ground-state energies, empirical proton-neutron interactions, Wigner energy coefficients, S(n); deduced odd-even staggering phenomena of nuclear binding energies. Shell model with the USDB interaction.

doi: 10.1103/PhysRevC.94.024312
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2016FU06      Phys.Rev. C 94, 024336 (2016)

G.J.Fu, Y.Y.Cheng, Y.M.Zhao, A.Arima

Shell model study of T=0 states for 96Cd by the nucleon-pair approximation

NUCLEAR STRUCTURE 96Cd; calculated low-lying isospin=0, levels, J, π, B(E2), magnetic dipole and electric quadrupole moments using several different approaches: shell model with JUN45 interaction, lowest seniority scheme, spin-aligned pair approximation, Jmax pair approximation, spin-one pair approximation, isovector and isoscalar pair approximations.

doi: 10.1103/PhysRevC.94.024336
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2016JI16      Phys.Rev. C 94, 064301 (2016)

H.Jiang, Y.Y.Cheng, N.Wang, Li.-W.Chen, Y.M.Zhao, A.Arima

Robustness of the I4 symmetry energy coefficient

ATOMIC MASSES A=16-300, Z>8, N>8; analyzed I4 symmetry energy coefficient extracted from popular mass models and corresponding databases improved by the radial basis function (RBF) approach and the RBF with odd-even correction; deduced robust linear correlation between present I4 symmetry energy coefficients and the corresponding rms deviations from experimental masses of these theoretical databases.

doi: 10.1103/PhysRevC.94.064301
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2015CH10      Phys.Rev. C 91, 024313 (2015)

Y.Y.Cheng, M.Bao, Y.M.Zhao, A.Arima

Wigner energy and nuclear mass relations

ATOMIC MASSES A=5-80; 58Cu, 98In; calculated Wigner energy, pairing and symmetry energies, binding-energy difference between the lowest T=0 and T=1 states of odd-odd N=Z nuclei by using local mass relations, in the first-order approximation. Comparison with experimental data.

doi: 10.1103/PhysRevC.91.024313
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2015CH11      Phys.Rev. C 91, 024314 (2015)

Y.Y.Cheng, Y.M.Zhao, A.Arima

Odd-even staggering in the neutron-proton interaction and nuclear mass models

ATOMIC MASSES A=60-250; analyzed odd-even staggering of the empirical neutron-proton interaction between the last neutron and the last proton δV1n-1p between even-even, odd-odd, even-odd and odd-even nuclei, and their consequences in Garvey-Kelson (GKs), Duflo-Zuker (DZ) and Weizsacker-Skyrme (WS) mass models. Description of binding energies and S(n), using AME-2012 mass data.

doi: 10.1103/PhysRevC.91.024314
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2015CH63      Phys.Rev. C 92, 064320 (2015)

Y.Y.Cheng, Y.Lei, Y.M.Zhao, A.Arima

Low-lying states of the 132Ba nucleus within the nucleon-pair approximation

NUCLEAR STRUCTURE 132Ba; calculated levels, J, π, bands, B(E2), g factors, configurations, band crossings and backbends. Nucleon-pair approximation of the shell model with five neutron configuration spaces. Comparison with experimental data.

doi: 10.1103/PhysRevC.92.064320
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2015SU12      Phys.Rev. C 92, 054302 (2015)

J.J.Sun, C.Xu, X.Q.Li, H.Hua, S.Q.Zhang, F.R.Xu, W.Y.Liang, C.F.Jiao, J.Meng, X.G.Wu, S.P.Hu, H.Q.Zhang, Z.H.Li, Y.L.Ye, D.X.Jiang, Y.Y.Cheng, C.He, R.Han, C.Y.Niu, C.G.Li, C.G.Wang, Z.H.Li, G.S.Li, C.Y.He, Y.Zheng, C.B.Li, H.W.Li, J.L.Wang, J.J.Liu, Y.H.Wu, P.W.Luo, S.H.Yao, B.B.Yu, X.P.Cao, H.B.Sun

Band crossing and shape evolution in 73Ge

NUCLEAR REACTIONS 70Zn(7Li, 3np), E=30, 35 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO) at HI-13 tandem facility of CIAE-Beijing. 73Ge; deduced high-spin levels, J, π, multipolarity, γ-branching ratios, bands, kinematic moments of inertia, configurations, signature splitting. Comparison with cranked Woods-Saxon-Strutinsky calculations using total-Routhian-surface (TRS) methods, and with band features in 75Se and 77Kr.

doi: 10.1103/PhysRevC.92.054302
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2014CH22      Phys.Rev. C 89, 054309 (2014), Erratum Phys.Rev. C 108, 029901 (2023)

Y.Y.Cheng, S.Q.Zhang, X.Q.Li, H.Hua, C.Xu, Z.H.Li, P.W.Zhao, J.Meng, J.J.Sun, Z.J.Bai, F.R.Xu, Y.L.Ye, D.X.Jiang, E.H.Wang, C.He, R.Han, X.G.Wu, G.S.Li, C.Y.He, Y.Zheng, C.B.Li, S.P.Hu, S.H.Yao, B.B.Yu, X.P.Cao, J.L.Wang

High-spin spectroscopy of 144Tb: Systematic investigation of dipole bands in N=79 isotones

NUCLEAR REACTIONS 116Sn(32S, 3np), E=156 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO) at HI-13 accelerator facility of CIAE. 144Tb; deduced high-spin levels, J, π, multipolarity, bands, configurations. Systematics of dipole bands in N=79 isotones 141Sm, 142Eu, 143Gd, 144Tb, 145Dy, 146Ho; Comparison with self-consistent tilted-axis-cranking covariant density functional theory (TAC-CDFT).

doi: 10.1103/PhysRevC.89.054309
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2014CH25      Phys.Rev. C 89, 061304 (2014)

Y.Y.Cheng, Y.M.Zhao, A.Arima

Strong correlations of the Garvey-Kelson mass relations

ATOMIC MASSES N=40-160; analyzed odd-even staggering with respect to experimental data from AME-2012; deduced strong correlations in Garvey-Kelson mass relations originating from statistical odd-even feature of the interaction between the last proton and the last neutron in atomic nuclei.

doi: 10.1103/PhysRevC.89.061304
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2014CH53      Phys.Rev. C 90, 064304 (2014)

Y.Y.Cheng, Y.M.Zhao, A.Arima

Reconstitution of local mass relations

NUCLEAR STRUCTURE A>16; analyzed two-neutron separation energies using AME-2003 and AME-2012 evaluations; deduced new local mass relations and compared with Garvey-Kelson relations.

doi: 10.1103/PhysRevC.90.064304
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2014HU09      Phys.Lett. B 732, 59 (2014)

S.-P.Hu, H.-L.Ma, X.-P.Cao, X.-G.Wu, H.-Q.Zhang, H.Hua, J.-J.Sun, H.-B.Sun, C.-Y.He, Y.Zheng, G.-S.Li, C.-B.Li, S.-H.Yao, B.-B.Yu, J.-L.Wang, H.-W.Li, Y.-H.Wu, J.-J.Liu, P.-W.Luo, C.Xu, Y.-Y.Cheng

Multiple triaxial bands and abnormal signature inversion in 7433As

NUCLEAR REACTIONS 70Zn(7Li, 3n), E=30 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced energies, relative intensities, positive- and negative-parity bands. Comparison with Cranked Nilsson-Strutinsky (CNS) model calculations.

doi: 10.1016/j.physletb.2014.03.014
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2014SU09      Phys.Lett. B 734, 308 (2014)

J.J.Sun, Z.Shi, X.Q.Li, H.Hua, C.Xu, Q.B.Chen, S.Q.Zhang, C.Y.Song, J.Meng, X.G.Wu, S.P.Hu, H.Q.Zhang, W.Y.Liang, F.R.Xu, Z.H.Li, G.S.Li, C.Y.He, Y.Zheng, Y.L.Ye, D.X.Jiang, Y.Y.Cheng, C.He, R.Han, Z.H.Li, C.B.Li, H.W.Li, J.L.Wang, J.J.Liu, Y.H.Wu, P.W.Luo, S.H.Yao, B.B.Yu, X.P.Cao, H.B.Sun

Spectroscopy of 74Ge: From soft to rigid triaxiality

NUCLEAR REACTIONS 70Zn(7Li, 2np), E=30, 35 MeV; measured reaction products, Eγ, Iγ; deduced level energies, J, π, yrast bands, energy staggering, triaxiality. Comparison with five-dimensional collective Hamiltonian model calculations.

NUCLEAR STRUCTURE 72,74,76,78Ge; calculated energy levels, J, π, potential energy surfaces. Five-dimensional collective Hamiltonian (5DCH) model.

doi: 10.1016/j.physletb.2014.05.069
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2014YA02      Phys.Rev. C 89, 014327 (2014)

S.H.Yao, H.L.Ma, L.H.Zhu, X.G.Wu, C.Y.He, Y.Zheng, B.Zhang, G.S.Li, C.B.Li, S.P.Hu, X.P.Cao, B.B.Yu, C.Xu, Y.Y.Cheng

Lifetime measurements and magnetic rotation in 107Ag

NUCLEAR REACTIONS 100Mo(11B, 4n)107Ag, E=46 MeV; measured Eγ, Iγ, γγ-coin, level half-lives by DSAM at HI-13-CIAE tandem accelerator facility. 107Ag; deduced high spin levels, J, π, magnetic dipole rotational bands, B(M1), B(E2), configuration. Systematics of angular momentum versus rotational frequency plots in 103,105Rh, 105,107,109Ag, 111,113In. Comparison with predictions of particle rotor model. Discussed evolution of magnetic rotation mechanism in A AP 110 mass region.

doi: 10.1103/PhysRevC.89.014327
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2013XU05      Phys.Rev. C 87, 034325 (2013), Erratum Phys.Rev. C 107, 049901 (2023)

C.Xu, H.Hua, X.Q.Li, S.Q.Zhang, J.Meng, Z.H.Li, F.R.Xu, Y.Y.Cheng, C.He, J.J.Sun, Y.Shi, H.L.Liu, Z.Y.Li, L.H.Zhu, X.G.Wu, G.S.Li, C.Y.He, Y.Zheng, S.G.Zhou, S.Y.Wang, Y.L.Ye, D.X.Jiang, T.Zheng, J.L.Lou, L.Y.Ma, E.H.Wang, L.L.Wang, B.Zhang

Spectroscopy of 157Yb and structure evolutions in odd-A Yb isotopes

NUCLEAR REACTIONS 144Sm(16O, 3n), E=85 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO) at the CIAE facility. 157Yb; deduced high-spin levels, J, π, bands, configurations, alignments, band crossings, signature splitting. Comparisons of experimental routhians in 157,159,161,163,165Yb nuclei. Systematics of experimental crossing frequencies in N=86-95 Er, Yb, Hf nuclei. Triaxial particle-rotor-model (PRM) calculations.

doi: 10.1103/PhysRevC.87.034325
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2012LI38      Nucl.Phys. A892, 34 (2012)

C.B.Li, J.Li, X.G.Wu, X.F.Li, Y.Zheng, C.Y.He, G.S.Li, S.H.Yao, B.B.Yu, X.P.Cao, S.P.Hu, J.L.Wang, C.Xu, Y.Y.Cheng

Magnetic rotation in doubly odd nucleus 114In

NUCLEAR REACTIONS 110Pd(7Li, 3n), E=26, 28 MeV; measured Eγ, Iγ, γγ-coin; deduced levels, J, π, γ transitions, B(M1), B(E2), high spin, rotational band, yrast band, yrare band, deformation, moments of inertia, magnetic rotation band using relativistic mean-field and effective interaction model.

doi: 10.1016/j.nuclphysa.2012.07.013
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2011LI43      Eur.Phys.J. A 47, 141 (2011)

C.B.Li, Y.Zheng, X.G.Wu, X.F.Li, C.Y.He, G.S.Li, S.H.Yao, B.B.Yu, X.P.Cao, S.P.Hu, J.L.Wang, J.B.Lu, Y.J.Ma, D.Yang, H.D.Wang, K.Y.Ma, G.Y.Liu, L.Li, C.Xu, Y.Y.Cheng

Level structures in the 114In nucleus

NUCLEAR REACTIONS 110Pd(7Li, 3n), (7Li, X), E=22, 24, 26, 28, 32 MeV; measured Eγ, Iγ(θ); deduced discrete γ transitions σ; calculated σ to different residual nuclei. 114In deduced levels, J, π, γ transitions, γ multipolarities, high-spin states, bands, backbending. PACED code; comparison with data on different In isotopes.

doi: 10.1140/epja/i2011-11141-1
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2011XU01      Phys.Rev. C 83, 014318 (2011), Erratum Phys.Rev. C 107, 039903 (2023)

C.Xu, H.Hua, X.Q.Li, J.Meng, Z.H.Li, F.R.Xu, Y.Shi, H.L.Liu, S.Q.Zhang, Z.Y.Li, L.H.Zhu, X.G.Wu, G.S.Li, C.Y.He, S.G.Zhou, S.Y.Wang, Y.L.Ye, D.X.Jiang, T.Zheng, J.L.Lou, L.Y.Ma, E.H.Wang, Y.Y.Cheng, C.He

New insight into the shape coexistence and shape evolution of 157Yb

NUCLEAR REACTIONS 144Sm(16O, 3n), E=85 MeV; measured Eγ, Iγ, γγ-coin, DCO ratios, 157Yb; deduced levels, J, π, high-spin structures, alignments, rotational bands, configurations. Comparisons with total Routhian surface (TRS) calculations and evidence of prolate, triaxial, and oblate shapes. Systematics of low-lying levels in N=87 isotones: 151Gd, 153Dy, 155Er, 157Yb and 159Hf.

doi: 10.1103/PhysRevC.83.014318
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