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NSR database version of April 11, 2024.

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2024CH13      Phys.Rev. C 109, 024308 (2024)

Q.B.Chen

g factor of chiral doublets with π(1h11/2)1 × ν(1h11/2)-1 configuration

doi: 10.1103/PhysRevC.109.024308
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2024CH17      Eur.Phys.J. A 60, (2024)

Y.Chen, Y.Qiu, Q.Li, Sh.Tang, Y.Yang, Zh.Ren, W.Jiang, R.Fan, H.Yi, R.Liu, J.Tang, H.Jing, Ch.Lan, Y.Li, Zh.Tan, Q.An, J.Bai, J.Bao, Y.Bao, P.Cao, H.Chen, Q.Chen, Zh.Chen, Z.Cui, Ch.Feng, K.Gao, X.Gao, M.Gu, Ch.Han, Z.Han, G.He, Y.He, Y.Hong, Y.Hu, H.Huang, X.Huang, H.Jiang, Zh.Jiang, L.Kang, B.Li, Ch.Li, J.Li, X.Li, J.Liu, Sh.Liu, X.Liu, Z.Long, G.Luan, Ch.Ning, M.Niu, B.Qi, J.Ren, X.Ruan, Zh.Song, K.Sun, Zh.Sun, X.Tang, B.Tian, L.Wang, P.Wang, Zh.Wang, Zh.Wen, X.Wu, X.Wu, L.Xie, X.Yang, L.Yu, T.Yu, Y.Yu, G.Zhang, L.Zhang, Q.Zhang, X.Zhang, Y.Zhang, Zh.Zhang, L.Zhou, Zh.Zhou, K.Zhu

Measurement of the neutron flux of CSNS Back-n ES#1 under small collimators from 0.5 eV to 300 MeV

NUCLEAR REACTIONS 235U(n, F), 6Li(n, X), E=0.0000005-300 MeV; measured reaction products, En, In, TOF; deduced σ, neutron flux and uncertainties. China Spallation Neutron Source (CSNS).

doi: 10.1140/epja/s10050-024-01272-z
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2024GA07      Phys.Rev. C 109, 024307 (2024)

T.J.Gao, J.-B.Lu, Y.Ma, Y.Zhang, S.Q.Zhang, H.D.Wang, J.-Q.Liu, P.-Y.Yang, Zh.Ren, Ch.-Q.Li, Q.B.Chen, Z.C.Gao, J.Li, K.Y.Ma, G.Dong

Evidence for possible multiple chiral doublet bands with identical configuration in the odd-odd nucleus 126Cs

doi: 10.1103/PhysRevC.109.024307
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2024GU06      Phys.Rev.Lett. 132, 092501 (2024)

R.J.Guo, S.Y.Wang, C.Liu, R.A.Bark, J.Meng, S.Q.Zhang, B.Qi, A.Rohilla, Z.H.Li, H.Hua, Q.B.Chen, H.Jia, X.Lu, S.Wang, D.P.Sun, X.C.Han, W.Z.Xu, E.H.Wang, H.F.Bai, M.Li, P.Jones, J.F.Sharpey-Schafer, M.Wiedeking, O.Shirinda, C.P.Brits, K.L.Malatji, T.Dinoko, J.Ndayishimye, S.Mthembu, S.Jongile, K.Sowazi, S.Kutlwano, T.D.Bucher, D.G.Roux, A.A.Netshiya, L.Mdletshe, S.Noncolela, W.Mtshali

Evidence for Chiral Wobbler in Nuclei

NUCLEAR REACTIONS 58Ni(19F, n2p)74Br, E=62 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced γ-ray energies, the angular distribution from oriented state (ADO) ratios and linear polarization values for the representative linking transitions between bands, level T1/2, partial level scheme, J, π, B(E2), bands, one-phonon wobbling excitation built on the yrast band. Doppler-shift-attenuation method, the detector array AFRODITE.

doi: 10.1103/PhysRevLett.132.092501
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2024HU02      Phys.Rev. C 109, L021302 (2024)

B.Hu, Q.B.Chen

Static quadrupole moment as a criterion to distinguish chiral modes

doi: 10.1103/PhysRevC.109.L021302
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2024SA09      Phys.Rev. C 109, 024319 (2024)

A.Saracino, S.Zhu, N.Sensharma, A.D.Ayangeakaa, R.V.F.Janssens, Q.B.Chen, M.P.Carpenter, P.Chowdhury, A.Gade, F.G.Kondev, T.M.Kowalewski, T.Lauritsen, E.A.McCutchan, D.Seweryniak

Collective modes of excitation in 64Cu

doi: 10.1103/PhysRevC.109.024319
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2024XU03      Phys.Rev. C 109, 024324 (2024)

H.-T.Xue, Q.B.Chen, J.-W.Cui, C.-F.Chen, H.-J.Schulze, X.-R.Zhou

Structure of low-lying states of 12C and 13ΛC in a beyond-mean-field approach

doi: 10.1103/PhysRevC.109.024324
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2023CH16      Phys.Rev. C 107, 034910 (2023)

Q.Chen, H.-S.Wang, G.-L.Ma

Probing fluctuations and correlations of strangeness by net-kaon cumulants in Au + Au collisions at √ sNN = 7.7 GeV

doi: 10.1103/PhysRevC.107.034910
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2023DA18      Phys.Rev. C 108, 054306 (2023)

H.M.Dai, Q.B.Chen, X.-R.Zhou

First exploration of wobbling modes in an isotone chain: The N=59 case

doi: 10.1103/PhysRevC.108.054306
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2023JI12      Eur.Phys.J. A 59, 262 (2023)

Z.-Y.Jian, H.Q.Zhu, Q.-H.Chen, Y.Huang, J.He

Molecular states from B-bar(*)N interactions

doi: 10.1140/epja/s10050-023-01167-5
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2023LI59      Phys.Rev. C 108, 064312 (2023)

Y.-X.Liu, C.F.Chen, Q.B.Chen, H.-T.Xue, H.-J.Schulze, X.-R.Zhou

Deformed charmed hypernuclei

doi: 10.1103/PhysRevC.108.064312
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2023WA35      Eur.Phys.J. A 59, 224 (2023)

J.Wang, J.Ren, W.Jiang, X.Ruan, Q.Sun, J.Hu, B.Jiang, J.Bao, Q.Zhang, G.Luan, H.Huang, Y.Nie, Z.Ge, Q.An, H.Bai, J.Bai, P.Cao, Q.Chen, Y.Chen, Z.Chen, Z.Cui, A.Fan, R.Fan, C.Feng, F.Feng, K.Gao, M.Gu, C.Han, Z.Han, G.He, Y.He, Y.Hong, Y.Hu, W.Jia, H.Jiang, Z.Jiang, Z.Jin, L.Kang, B.Li, C.Li, G.Li, J.Li, Q.Li, Y.Li, J.Liu, R.Liu, S.Liu, C.Ning, B.Qi, Z.Ren, Z.Song, K.Sun, Z.Tan, J.Tang, S.Tang, L.Wang, P.Wang, Z.Wang, Z.Wen, X.Wu, X.Wu, L.Xie, Y.Yang, H.Yi, Y.Yu, G.Zhang, L.Zhang, M.Zhang, X.Zhang, Y.Zhang, Y.Zhang, Z.Zhang, M.Zhao, L.Zhou, K.Zhu, J.Zhang

Determination of the 232Th(n, γ) cross section from 10 to 200 keV at the Back-n facility at CSNS

NUCLEAR REACTIONS 232Th, 197Au(n, γ), E=10-200 keV; measured reaction products, En, In, Eγ, Iγ; deduced σ. Comparison with ENDF/B-VIII.0, CENDL-3.2, JENDL-5 libraries and TALYS 1.96 calculations. The back-streaming white neutron beam-line (Back-n) of China Spallation Neutron Source (CSNS).

doi: 10.1140/epja/s10050-023-01126-0
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2023XU03      Phys.Rev. C 107, 044317 (2023)

H.-T.Xue, Y.-F.Chen, Q.B.Chen, Y.A.Luo, H.-J.Schulze, X.-R.Zhou

Deformation and spin-orbit splitting of Λ hypernuclei in the Skyrme-Hartree-Fock approach

NUCLEAR STRUCTURE 12,13C, 16O, 28Si, 32S, 40Ca, 51V, 89Y, 139La, 208Pb; calculated Λ separation energy for hypernuclei, two-dimensional density distributions of Λ orbits, potential energy surfaces, quadrupole deformations of core nucleus and Λ orbitals, Λ spin-orbit slitting. Deformed Skyrme-Hartree-Fock (DSHF) approach with SLy4 NN and SLL4 ΛN interactions. Discussed spin symmetry in the hyperon spectrum. Comparison to available experimental data.

doi: 10.1103/PhysRevC.107.044317
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2022AY02      Phys.Rev. C 105, 054315 (2022)

A.D.Ayangeakaa, N.Sensharma, M.Fulghieri, R.V.F.Janssens, Q.B.Chen, S.Zhu, M.Alcorta, M.P.Carpenter, P.Chowdhury, A.Gade, C.R.Hoffman, F.G.Kondev, T.Lauritsen, E.A.McCutchan, A.M.Rogers, D.Seweryniak

Single-particle and collective excitations in 66Zn

NUCLEAR REACTIONS 26Mg(48Ca, 4nα), E=275, 290, 320 MeV; measured Eγ, Iγ, γ(θ), γγ-coin. 66Zn; deduced levels, J, π, angular correlation ratios, experimental angular distribution coefficients, δ, rotational bands structure, high-spin states. Comparison to spherical shell-model calculations using the jj44b and JUN45 effective interactions. Experimental data on rotational band is compared to the calculations made within configuration-fixed constrained covariant density functional theory (CDFT) and the quantum particle rotor model (PRM) formalism. Systematics for superderformed bands in 60Zn, 66Zn, 68Zn, 68Ge. Gammasphere array with 101 detectors in conjunction with the fragment mass analyzer (FMA) and a microchannel plate (MCP) detector at ATLAS accelerator (ANL).

doi: 10.1103/PhysRevC.105.054315
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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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2022CH22      Eur.Phys.J. A 58, 75 (2022), Erratum Eur.Phys.J. A 58, 174 (2022)

Q.B.Chen, S.Frauendorf

Study of wobbling modes by means of spin coherent state maps

doi: 10.1140/epja/s10050-022-00727-5
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2022CH33      Phys.Rev. C 106, 014907 (2022)

Q.Chen, G.-L.Ma

Dynamical development of proton cumulants and correlation functions in Au + Au collisions at √ sNN = 7.7 GeV from a multiphase transport model

doi: 10.1103/PhysRevC.106.014907
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2022CH36      Chin.Phys.C 46, 064109 (2022)

C.F.Chen, Q.B.Chen, X.-R.Zhou, Y.Y.Chen, J-W.Cui, H.-J.Schulze

Effects of Λ hyperons on the deformations of even-even nuclei

NUCLEAR STRUCTURE 8Be, 12C, 16O, 20Ne, 24Mg, 28Si, 32S, 36Ar, 40Ca, 22,24,26,28Ne, 30,32,34,36Si, 42,44,46,48Ca; calculated potential energy surfaces as functions of quadrupole deformation, hyperon s.p. energy levels as function of quadrupole deformation, density distributions for the occupied s.p. orbits using the deformed Skyrme-Hartree-Fock approach.

doi: 10.1088/1674-1137/ac5b58
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2022GR05      Phys.Rev. C 106, 014318 (2022)

E.Grodner, M.Kowalczyk, M.Kisielinski, J.Srebrny, L.Prochniak, Ch.Droste, S.G.Rohozinski, Q.B.Chen, M.Ionescu-Bujor, C.A.Ur, F.Recchia, J.Meng, S.Q.Zhang, P.W.Zhao, G.Georgiev, R.Lozeva, E.Fiori, S.Aydin, A.Nalecz-Jawecki

Examination of nuclear chirality with a magnetic moment measurement of the I=9 isomeric state in 128Cs

NUCLEAR MOMENTS 128mCs; measured Eγ, γ-intensity oscillation spectra, oscillating ratios, Larmor frequency of precession with a magnetic field of about 0.7 T, time differential perturbed angular distribution (TDPAD) of γ rays from the isomer using 122Sn(10B, 4n)128Cs, E=55 MeV reaction at the Tandem accelerator of IPN Orsay; deduced g-factor and configuration of the isomeric 9+ bandhead of the yrast states. Comparison with theoretical predictions for shell-model configurations, and chiral interpretation of 128Cs nucleus as a composition of the odd proton, odd neutron, and even-even core with their angular momentum vectors.

NUCLEAR STRUCTURE 128Cs; calculated levels, J, π, bands, B(E2), B(M1), g factors using quantum angular momentum algebra and semiclassical calculations, in the framework of many-particle-many-hole Particle Triaxial Rotor Model. Evidence for the existence of chiral critical frequency, and absence of chiral doublet members for J<13 states.

doi: 10.1103/PhysRevC.106.014318
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2022GU03      Phys.Rev. C 105, 034322 (2022)

J.Guo, C.F.Chen, X.-R.Zhou, Q.B.Chen, H.-J.Schulze

ΛΛ pairing effects in spherical and deformed multi-Λ hyperisotopes

NUCLEAR STRUCTURE 6He, 10,11,12Be, 12,13B, 40Ca, 132Sn, 208Pb, 24Mg, 56Fe, 104Zr; calculated ΛΛ separation energies (S(2Λ)) double-Λ hypernuclei. 40,46Ca, 132,160Sn, 208,272Pb, 24Mg, 56Fe, 104Zr; calculated pairing gaps, pairing energies of hypernuclei. 130Zr; calculated deformation dependence of single-particle level energies, pairing gap and occupation probabilities of hypernuclei. 278Pb; calculated Λ hyperon potentil; single-particle levels. Skyrme-Hartree-Fock approach with Skyrme force SLy5 for the NN interaction, the Nijmegen interaction NSC97f for the ΛN interaction, and the empirical prescription EmpC for the ΛΛ interaction. Comparison to available experimental data.

doi: 10.1103/PhysRevC.105.034322
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2022GU11      Chin.Phys.C 46, 064106 (2022)

J.Guo, D.H.Chen, X.-R.Zhou, Q.B.Chen, H.-J.Schulze

Effects of a kaonic meson on the ground-state properties of nuclei

NUCLEAR STRUCTURE 5,6,7,8,9,10,11,12,13,14,15,16,17,18Be, 11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28O, 15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34Ne; calculated energies of the highest-occupied nucleon s.p. levels, partial neutron and proton s.p. levels within an axially-deformed Skyrme-Hartree-Fock approach combined with a Skyrme-type kaon-nucleon interaction.

doi: 10.1088/1674-1137/ac5601
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2022MU09      Phys.Lett. B 827, 137006 (2022)

L.Mu, S.Y.Wang, C.Liu, B.Qi, R.A.Bark, J.Meng, S.Q.Zhang, P.Jones, S.M.Wyngaardt, H.Jia, Q.B.Chen, Z.Q.Li, S.Wang, D.P.Sun, R.J.Guo, X.C.Han, W.Z.Xu, X.Xiao, P.Y.Zhu, H.W.Li, H.Hua, X.Q.Li, C.G.Li, R.Han, B.H.Sun, L.H.Zhu, T.D.Bucher, B.V.Kheswa, N.Khumalo, E.A.Lawrie, J.J.Lawrie, K.L.Malatji, L.Msebi, J.Ndayishimye, J.F.Sharpey-Schafer, O.Shirinda, M.Wiedeking, T.Dinoko, S.S.Ntshangase

First observation of the coexistence of multiple chiral doublet bands and pseudospin doublet bands in the A ≈ 80 mass region

NUCLEAR REACTIONS 82Se(α, X)81Kr, E=65, 68 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, two nearly degenerate positive-parity bands. Comparison with the constrained covariant density functional theory and the multiparticle plus rotor model calculations.

doi: 10.1016/j.physletb.2022.137006
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2022PE03      Phys.Rev. C 105, 044318 (2022)

J.Peng, Q.B.Chen

Evolution of the chiral rotation mode in rhodium isotopes

NUCLEAR STRUCTURE 102,103,104,105,106,107Rh; calculated total Routhian curves, orientation angles for the total angular momentum, B(M1)/B(E2), kinetic and dynamic moments of inertia, rotational bands structure, configurations. Three-dimensional tilted axis cranking calculations with constrained density functional theory (3D-TAC CDFT). Comparison to experimental data.

doi: 10.1103/PhysRevC.105.044318
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2022SE03      Phys.Rev. C 105, 044315 (2022)

N.Sensharma, A.D.Ayangeakaa, R.V.F.Janssens, Q.B.Chen, S.Zhu, M.Alcorta, M.P.Carpenter, E.A.McCutchan, F.G.Kondev, T.Lauritsen, D.Seweryniak, C.R.Hoffman, A.M.Rogers, A.Gade, T.Baugher, P.Chowdhury

Single-particle and dipole excitations in 62Co

NUCLEAR REACTIONS 26Mg(48Ca, 3np2α), E=275, 290, 320 MeV; measured Eγ, Iγ, γ(θ), γγ-coin. 62Co; deduced levels, J, π, angular correlation ratios, experimental angular distribution coefficients, multipolarities, rotational bands structures. Comparison to shell-model calculations using the GXPF1A two-body effective interaction. Systematics for magnetic rotational bands in 60Co, 61Co, 62Co, 58Fe. Gammasphere array with 101 detectors in conjunction with the fragment mass analyzer (FMA) and a microchannel plate (MCP) detector at ATLAS accelerator (ANL).

doi: 10.1103/PhysRevC.105.044315
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2022WA12      Phys.Rev. C 105, 044316 (2022)

Y.Y.Wang, Q.B.Chen, S.Q.Zhang

Interpretation of enhanced electric dipole transitions in 73Br by the reflection-asymmetric triaxial particle rotor model

NUCLEAR STRUCTURE 73Br; calculated potential energy surface, levels, J, π, B(E2), B(E1), positive and negative parity bands structures, proton single-particle levels. Investigated octupole correlations. Reflection-asymmetric triaxial version of particle rotor model (RAT-PRM). Comparison to experimental data.

doi: 10.1103/PhysRevC.105.044316
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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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2022ZH23      J.Phys.(London) G49, 055103 (2022)

Y.Zheng, C.B.Li, X.G.Wu, H.L.Ma, L.H.Zhu, T.X.Li, Z.Y.Huang, H.Chen, C.Y.He, Q.W.Fan, G.S.Li, Q.M.Chen, J.Zhong, S.P.Hu, H.W.Li, J.L.Wang, J.J.Liu, Y.H.Wu, P.W.Luo

Fast-timing lifetime measurements of the 33/2+ and 25/2- states in 189Hg: oblate excitations

NUCLEAR REACTIONS 175Lu(19F, 5n), E=100 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced γ-ray energies, partial level scheme, J, π, level T1/2, B(E2), B(E1). Comparison with systematics, Nilsson-Strutinsky Bogoliubov (CNSB) model calculations. The fast-timing techniques with the HPGe and LaBr3:Ce array at the HI-13 tandem accelerator at the China Institute of Atomic Energy.

doi: 10.1088/1361-6471/ac58b0
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2021BR08      Eur.Phys.J. A 57, 161 (2021)

C.Broocks, Q.B.Chen, N.Kaiser, Ulf-G.Meissner

g-Factor and static quadrupole moment of 135Pr, 105Pd, and 187Au in wobbling motion

NUCLEAR STRUCTURE 135Pr, 105Pd, 187Au; analyzed available data; deduced g-factor and static quadrupole moment using the particle-rotor model as functions of the total spin I.

doi: 10.1140/epja/s10050-021-00482-z
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2021HU26      Phys.Rev. C 104, 064325 (2021)

L.Hu, J.Peng, Q.B.Chen

Possible existence of multiple wobbling modes in A ≈ 60 nuclei

NUCLEAR STRUCTURE 57,58,59,60,61,62Ni; calculated single-proton and single-neutron energy levels near the Fermi surface of the ground states, potential energy curves, energies, deformation parameters β and γ and the corresponding configurations for wobbling motion in adiabatic and configuration-fixed constrained triaxial covariant density functional theory (CDFT). 62Ni; calculated energies of the lowest bands based on the configuration νg9/22, root mean square angular momentum components along the medium, short, and long axes of the rotor, valence neutrons, and total angular momentum, probability density profiles for the orientation of the angular momentum on the plane for the doublet bands using combination of the covariant density functional theory and quantum particle rotor model; suggested transverse wobbling in semimagic nucleus 62Ni. Comparison with experimental data.

doi: 10.1103/PhysRevC.104.064325
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2021LE16      Ann.Nucl.Energy 164, 108604 (2021)

M.Lei, W.Zeng, Q.Chen, G.Qu, Z.Li, B.Liu, Y.Deng, C.He, J.Wang

Measurement of HFETR reactor power by improved 16N gamma spectrum analysis method

NUCLEAR REACTIONS 16O(n, p)16N, E not given; measured reaction products, Eγ, Iγ; deduced γ-ray energies. High Flux Engineering Test Reactor (HFETR).

doi: 10.1016/j.anucene.2021.108604
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2021LI35      Eur.Phys.J. A 57, 232 (2021); Erratum Eur.Phys.J. A 57, 252 (2021)

X.Liu, Y.Yang, R.Liu, Z.Wen, J.Wen, Z.Han, Y.Chen, H.Jing, H.Yi, J.Bao, Z.Ren, Q.An, H.Bai, P.Cao, Q.Chen, P.Cheng, Z.Cui, R.Fan, C.Feng, M.Gu, F.Guo, C.Han, G.He, Y.He, Y.He, H.Huang, W.Huang, X.Huang, X.Ji, X.Ji, H.Jiang, W.Jiang, L.Kang, M.Kang, B.Li, L.Li, Q.Li, X.Li, Y.Li, Y.Li, S.Liu, G.Luan, Y.Ma, C.Ning, B.Qi, J.Ren, X.Ruan, Z.Song, H.Sun, X.Sun, Z.Sun, Z.Tan, H.Tang, J.Tang, P.Wang, Q.Wang, T.Wang, Y.Wang, Z.Wang, Z.Wang, Q.Wu, X.Wu, X.Wu, L.Xie, L.Yu, T.Yu, Y.Yu, G.Zhang, J.Zhang, L.Zhang, L.Zhang, Q.Zhang, Q.Zhang, X.Zhang, Y.Zhang, Z.Zhang, Y.Zhao, L.Zhou, Z.Zhou, D.Zhu, K.Zhu, P.Zhu

Measurement of the neutron total cross sections of aluminum at the back-n white neutron source of CSNS

NUCLEAR REACTIONS 27Al(n, X), E<20 MeV; measured reaction products, En, In; deduced neutron transmission, total σ and uncertainties. Comparison withENDF/B-VIII.0, JEFF-3.3 and CENDL-3.2 library evaluations, EXFOR compilations. Spallation Neutron Source Science Center.

doi: 10.1140/epja/s10050-021-00513-9
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2021QI07      J.Phys.(London) G48, 055102 (2021)

B.Qi, H.Zhang, S.Y.Wang, Q.B.Chen

Influence of triaxial deformation on wobbling motion in even-even nuclei

NUCLEAR STRUCTURE 110Ru; analyzed available data; deduced energy levels, J, π, influence of triaxial deformation on the purely collective form of wobbling motion.

doi: 10.1088/1361-6471/abcdf7
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2021RA31      Phys.Rev. C 104, 064316 (2021)

S.Rajbanshi, R.Palit, R.Raut, Y.Y.Wang, Z.X.Ren, J.Meng, Q.B.Chen, S.Ali, H.Pai, F.S.Babra, R.Banik, S.Bhattacharya, S.Bhattacharyya, P.Dey, S.Malik, G.Mukherjee, Md.S.R.Laskar, S.Nandi, R.Santra, T.Trivedi, S.S.Ghugre, A.Goswami

Evidence of octupole correlation in 79Se

NUCLEAR REACTIONS 76Ge(9Be, 2nα)79Se, E≈31 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(θ)(ADO ratios), γγ(linear polarization), T1/2 of levels by DSAM using INGA array of 14 Compton-suppressed clover detectors at the TIFR Pelletron Linac Facility. 79Se; deduced high-spin levels, J, π, multipolarities, multipole mixing ratios, B(M1), B(E2), B(E1)/B(E2) ratios, intrinsic dipole moments, octupole correlation; calculated potential energy surface in (β20, β30) plane based on the covariant density functional theory. Comparison of measured transition probabilities with reflection asymmetric triaxial particle rotor model (RAT-PRM) calculations.

doi: 10.1103/PhysRevC.104.064316
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Data from this article have been entered in the XUNDL database. For more information, click here.


2021RE01      Nucl.Instrum.Methods Phys.Res. A985, 164703 (2021)

J.Ren, X.Ruan, W.Jiang, J.Bao, G.Luan, Q.Zhang, H.Huang, Y.Nie, Z.Ge, Q.An, H.Bai, Y.Bao, P.Cao, H.Chen, Q.Chen, Y.Chen, Y.Chen, Z.Chen, Z.Cui, R.Fan, C.Feng, K.Gao, M.Gu, C.Han, Z.Han, G.He, Y.He, Y.Hong, W.Huang, X.Huang, X.Ji, X.Ji, H.Jiang, Z.Jiang, H.Jing, L.Kang, M.Kang, B.Li, C.Li, J.Li, L.Li, Q.Li, X.Li, Y.Li, R.Liu, S.Liu, X.Liu, Q.Mu, C.Ning, B.Qi, Z.Ren, Y.Song, Z.Song, H.Sun, K.Sun, X.Sun, Z.Sun, Z.Tan, H.Tang, J.Tang, X.Tang, B.Tian, L.Wang, P.Wang, Q.Wang, T.Wang, Z.Wang, J.Wen, Z.Wen, Q.Wu, X.Wu, X.Wu, L.Xie, Y.Yang, H.Yi, L.Yu, T.Yu, Y.Yu, G.Zhang, L.Zhang, X.Zhang, Y.Zhang, Z.Zhang, Y.Zhao, L.Zhou, Z.Zhou, D.Zhu, K.Zhu, P.Zhu

Background study for (n, γ) cross section measurements with C6D6 detectors at CSNS Back-n

NUCLEAR REACTIONS 197Au, Pb, C, 181Ta, 59Co(n, γ), E<400 MeV; measured reaction products, Eγ, Iγ; deduced σ.

doi: 10.1016/j.nima.2020.164703
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2021WA19      Phys.Rev. C 103, 034301 (2021)

E.H.Wang, J.H.Hamilton, A.V.Ramayya, C.J.Zachary, A.Lemasson, A.Navin, M.Rejmund, S.Bhattacharyya, Q.B.Chen, S.Q.Zhang, J.M.Eldridge, J.K.Hwang, N.T.Brewer, Y.X.Luo, J.O.Rasmussen, S.J.Zhu, G.M.Ter-Akopian, Yu.Ts.Oganessian, M.Caamano, E.Clement, O.Delaune, F.Farget, G.de France, B.Jacquot

Pseudospin-doublet bands and Gallagher Moszkowski doublet bands in 100Y

RADIOACTIVITY 252Cf(SF); measured Eγ, γγγ-, and γγγγ-coin using Gammasphere array at LBNL. 100Y; deduced levels, J, π, bands, configurations.

NUCLEAR REACTIONS 9Be(238U, F)100Y, E=6.2 MeV/nucleon; measured Eγ, γγ-coin, A- and Z-gated γ spectra using VAMOS++ spectrometer and EXOGAM array at GANIL facility. 100Y; deduced high-spin levels, J, π, rotational bands, B(M1)/B(E2), configurations, moments of inertia plots. Comparison with particle-rotor model calculations.

NUCLEAR STRUCTURE 100Y; calculated potential-energy surface in the (β2, γ) plane, levels, J, π, bands, in-band B(M1), B(E2), B(M1)/B(E2), rms components of the angular momentum versus spin. Constrained triaxial covariant density-functional theory (CDFT) and quantal particle rotor model (PRM) calculations. Comparison with experimental data.

doi: 10.1103/PhysRevC.103.034301
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2021ZH44      Chin.Phys.C 48, 084001 (2021)

J.Zhong, L.-T.Deng, S.-P.Hu, X.-G.Wu, P.C.Srivastava, A.Saxena, G.-S.Li, Y.Zheng, C.-B.Li, Q.-M.Chen, C.-Y.He, W.-K.Zhou, B.-J.Zhu, Q.-W.Fang, H.Hua, J.-J.Sun, H.-B.Sun, L.Gan, H.-G.Zhao, Q.Luo, Z.-X.Wu

High spin states in 71Ga

NUCLEAR REACTIONS 70Zn(7Li, 2nα)71Ga, E=30, 35 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies and intensities, J, π, level scheme, positive and negative parity bands. Comparison with calculations in the framework of nuclear shell models with JUN45 and jj44b interactions.

doi: 10.1088/1674-1137/ac0098
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2020BA03      Chin.Phys.C 44, 014003 (2020)

H.Bai, R.Fan, H.Jiang, Z.Cui, Y.Hu, G.Zhang, Z.Chen, W.Jiang, H.Yi, J.Tang, L.Zhou, Q.An, J.Bao, P.Cao, Q.Chen, Y.Chen, P.Cheng, C.Feng, M.Gu, F.Guo, C.Han, Z.Han, G.He, Y.He, Y.He, H.Huang, W.Huang, X.Huang, X.Ji, X.Ji, H.Jing, L.Kang, M.Kang, B.Li, L.Li, Q.Li, X.Li, Y.Li, Y.Li, R.Liu, S.Liu, X.Liu, G.Luan, Y.Ma, C.Ning, B.Qi, J.Ren, X.Ruan, Z.Song, H.Sun, X.Sun, Z.Sun, Z.Tan, H.Tang, P.Wang, Q.Wang, T.Wang, Y.Wang, Z.Wang, Z.Wang, J.Wen, Z.Wen, Q.Wu, X.Wu, X.Wu, L.Xie, Y.Yang, L.Yu, T.Yu, Y.Yu, J.Zhang, L.Zhang, L.Zhang, Q.Zhang, Q.Zhang, X.Zhang, Y.Zhang, Z.Zhang, Y.Zhao, Z.Zhou, D.Zhu, K.Zhu, P.Zhu

Measurement of the differential cross sections and angle-integrated cross sections of the 6Li(n, t)4He reaction from 1.0 eV to 3.0 MeV at the CSNS Back-n white neutron source

NUCLEAR REACTIONS 6Li(n, t), E=0.000001-3 MeV; measured reaction products; deduced σ. Comparison with ENDF/B-VIII.0 and JEFF-3.3 libraries, experimental data.

doi: 10.1088/1674-1137/44/1/014003
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2020CH27      Phys.Lett. B 807, 135596 (2020)

Q.B.Chen, S.Frauendorf, N.Kaiser, U.-G.Meissner, J.Meng

g-factor and static quadrupole moment for the wobbling mode in 133La

NUCLEAR MOMENTS 133La; calculated g-factor and static quadrupole moment for the wobbling mode, angular momentum, probability distributions for the rotor angular momentum.

doi: 10.1016/j.physletb.2020.135596
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2020GU21      Phys.Rev. C 102, 044320 (2020)

S.Guo, C.M.Petrache, D.Mengoni, Y.X.Liu, Q.B.Chen, Y.H.Qiang, A.Astier, E.Dupont, K.K.Zheng, J.G.Wang, B.Ding, B.F.Lv, M.L.Liu, Y.D.Fang, X.H.Zhou, D.Bazzacco, A.Boso, A.Goasduff, F.Recchia, D.Testov, F.Galtarossa, G.Jaworski, D.R.Napoli, S.Riccetto, M.Siciliano, J.J.Valiente-Dobon, C.Andreoiu, F.H.Garcia, K.Ortner, K.Whitmore, B.Cederwall, E.A.Lawrie, I.Kuti, D.Sohler, T.Marchlewski, J.Srebrny, A.Tucholski

Pseudospin partner bands in 130Ba

NUCLEAR REACTIONS 122Sn(13C, 5n), E=65 MeV; measured Eγ, Iγ, γγ-, (particle)γ, nγ-coin, γγ(θ) at two points using the GALILEO array coupled to the EUCLIDES and Neutron Wall detector arrays at the XTU Tandem accelerator of LNL-Legnaro. 130Ba; deduced high-spin levels, J, π, multipolarities, mixing ratios, bands, B(M1)/B(E2), alignment plots, moments of inertia, signature and pseudospin splittings of bands, configurations. Comparison with projected shell model (PSM) and the particle rotor model (PRM) calculations.

doi: 10.1103/PhysRevC.102.044320
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2020JI06      Nucl.Instrum.Methods Phys.Res. A973, 164126 (2020)

W.Jiang, H.Bai, H.Jiang, H.Yi, R.Fan, G.Zhang, J.Tang, Z.Sun, C.Ning, K.Sun, K.Gao, Z.Cui, Q.An, J.Bao, Y.Bao, P.Cao, H.Chen, Q.Chen, Y.Chen, Y.Chen, Z.Chen, C.Feng, M.Gu, F.Guo, C.Han, Z.Han, G.He, Y.He, Y.Hong, H.Huang, W.Huang, X.Huang, X.Ji, X.Ji, Z.Jiang, H.Jing, L.Kang, M.Kang, B.Li, C.Li, J.Li, L.Li, Q.Li, X.Li, Y.Li, R.Liu, S.Liu, X.Liu, G.Luan, Q.Mu, B.Qi, J.Ren, Z.Ren, X.Ruan, Y.Song, Z.Song, H.Sun, X.Sun, Z.Tan, H.Tang, X.Tang, B.Tian, L.Wang, P.Wang, Q.Wang, T.Wang, Y.Wang, Z.Wang, J.Wen, Z.Wen, Q.Wu, X.Wu, X.Wu, L.Xie, Y.Yang, L.Yu, T.Yu, Y.Yu, L.Zhang, Q.Zhang, X.Zhang, Y.Zhang, Z.Zhang, Y.Zhao, L.Zhou, L.Zhou, Z.Zhou, D.Zhu, K.Zhu, P.Zhu

Application of a silicon detector array in (n, lcp) reaction cross-section measurements at the CSNS Back-n white neutron source

NUCLEAR REACTIONS 6Li(n, t), 10B(n, α), E<1 MeV; measured reaction products, En, In; deduced σ. Comparison with experimental data, ENDF/B-VIII.0, JEFF-3.3, ROSFOND evaluated libraries.

doi: 10.1016/j.nima.2020.164126
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2020LI33      Nucl.Instrum.Methods Phys.Res. A980, 164506 (2020)

Q.Li, H.Jing, B.Zhou, C.Ning, J.Tang, J.Ren, H.Yi, X.Zhu, L.Zhang, W.Jiang, R.Fan, J.Bao, C.Feng, X.Ruan, Y.Chen, L.Zhou, Y.Li, Z.Tan, Y.Chen, Q.An, H.Bai, P.Cao, Q.Chen, P.Cheng, Z.Cui, M.Gu, F.Guo, C.Han, Z.Han, G.He, Y.He, Y.He, H.Huang, W.Huang, X.Huang, X.Ji, X.Ji, H.Jiang, L.Kang, M.Kang, B.Li, L.Li, X.Li, Y.Li, R.Liu, S.Liu, X.Liu, G.Luan, Y.Ma, B.Qi, Z.Song, H.Sun, X.Sun, Z.Sun, H.Tang, P.Wang, Q.Wang, T.Wang, Y.Wang, Z.Wang, Z.Wang, J.Wen, Z.Wen, Q.Wu, X.Wu, X.Wu, L.Xie, Y.Yang, L.Yu, T.Yu, Y.Yu, G.Zhang, J.Zhang, L.Zhang, Q.Zhang, Q.Zhang, X.Zhang, Y.Zhang, Z.Zhang, Y.Zhao, L.Zhou, Z.Zhou, D.Zhu, K.Zhu, P.Zhu

Neutron and γ background measurements of the experimental halls at the CSNS back-streaming white neutron source

doi: 10.1016/j.nima.2020.164506
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2020MA50      Nucl.Instrum.Methods Phys.Res. A982, 164552 (2020)

X.Mao, Z.Wang, J.Qi, Q.Chen, P.Qi, X.Li, C.Zhao, Y.Li, B.Zhu, T.Gao, R.Zhou, C.Yang

A high-energy gamma-ray source based on neutron capture

NUCLEAR REACTIONS 9Be(α, n), E thermal; calculated Eγ, Iγ, γ-ray yields, optimal mass ratio of paraffin to Ni using GEANT4 code.

doi: 10.1016/j.nima.2020.164552
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2020NA27      Phys.Rev.Lett. 25, 132501 (2020)

S.Nandi, G.Mukherjee, Q.B.Chen, S.Frauendorf, R.Banik, S.Bhattacharya, S.Dar, S.Bhattacharyya, C.Bhattacharya, S.Chatterjee, S.Das, S.Samanta, R.Raut, S.S.Ghugre, S.Rajbanshi, S.Ali, H.Pai, M.A.Asgar, S.Das Gupta, P.Chowdhury, A.Goswami

First Observation of Multiple Transverse Wobbling Bands of Different Kinds in 183Au

NUCLEAR REACTIONS 169Tm(20Ne, 6n)183Au, E=146 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, two wobbling bands. Comparison with systematics.

doi: 10.1103/PhysRevLett.125.132501
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Data from this article have been entered in the XUNDL database. For more information, click here.


2020PE06      Phys.Lett. B 806, 135489 (2020)

J.Peng, Q.B.Chen

Coexistence of planar and aplanar rotations in 195Tl

NUCLEAR STRUCTURE 195Tl; analyzed available data; calculated energy spectra as functions of spin for the bands B2 and B2a, potential-energy curves in adiabatic and configuration-fixed constrained triaxial CDFT with PC-PK1.

doi: 10.1016/j.physletb.2020.135489
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2020PE10      Eur.Phys.J. A 56, 208 (2020)

C.M.Petrache, B.F.Lv, Q.B.Chen, J.Meng, A.Astier, E.Dupont, K.K.Zheng, P.T.Greenlees, H.Badran, T.Calverley, D.M.Cox, T.Grahn, J.Hilton, R.Julin, S.Juutinen, J.Konki, J.Pakarinen, P.Papadakis, J.Partanen, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, S.Stolze, J.Uusitalo, B.Cederwall, A.Ertoprak, H.Liu, S.Guo, J.G.Wang, X.H.Zhou, I.Kuti, J.Timar, A.Tucholski, J.Srebrny, C.Andreoiu

Multiple chiral bands in 137Nd

NUCLEAR REACTIONS 100Mo(40Ar, 3n), E=152 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced γ-ray energies and intensities, B(M1)/B(E2), quasi-particle alignments for the chiral rotational bands, angular momenta. Comparison with theoretical calculations.

doi: 10.1140/epja/s10050-020-00218-5
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Data from this article have been entered in the XUNDL database. For more information, click here.


2020PE12      Phys.Lett. B 810, 135795 (2020)

J.Peng, Q.B.Chen

Covariant density functional theory for nuclear chirality in 135Nd

NUCLEAR STRUCTURE 135Nd; calculated total Routhian curves as functions of the azimuth angle using 3D-TAC CDFT, B(M1), B(E2). Comparison with available data.

doi: 10.1016/j.physletb.2020.135795
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2020RE11      Phys.Rev. C 102, 034604 (2020)

Z.Ren, Y.Yang, J.Wen, H.Guo, Z.Wen, R.Liu, Z.Han, W.Sun, X.Liu, Q.Chen, T.Ye, Q.An, H.Bai, J.Bao, P.Cao, Y.Chen, P.Cheng, Z.Cui, R.Fan, C.Feng, M.Gu, F.Guo, C.Han, G.He, Y.He, Y.He, H.Huang, W.Huang, X.Huang, X.Ji, X.Ji, H.Jiang, W.Jiang, H.Jing, L.Kang, M.Kang, B.Li, L.Li, Q.Li, X.Li, Y.Li, Y.Li, S.Liu, G.Luan, Y.Ma, C.Ning, B.Qi, J.Ren, X.Ruan, Z.Song, H.Sun, X.Sun, Z.Sun, Z.Tan, H.Tang, J.Tang, P.Wang, Q.Wang, T.Wang, Y.Wang, Z.Wang, Z.Wang, Q.Wu, X.Wu, X.Wu, L.Xie, H.Yi, L.Yu, T.Yu, Y.Yu, G.Zhang, J.Zhang, L.Zhang, L.Zhang, Q.Zhang, Q.Zhang, X.Zhang, Y.Zhang, Z.Zhang, Y.Zhao, L.Zhou, Z.Zhou, D.Zhu, K.Zhu, P.Zhu

Measurement of the 236U(n, f) cross section for neutron energies from 0.4 MeV to 40 MeV from the back-streaming white neutron beam at the China Spallation Neutron Source

NUCLEAR REACTIONS 235,236U(n, F), E AP 0.4-40 MeV beam from the China Spallation Neutron Source (CSNS)-Back-streaming white neutron source (WNS); measured fission fragments, energy spectra, time-of-flight using Fast Ionization Chamber Spectrometer; deduced 236U(n, F)/235U(n, F) cross section ratios. Comparison with theoretical calculation using the UNF code, and with evaluated data in JENDL-4.0, CENDL-3.1, and ENDF/B-VIII.0 libraries.

doi: 10.1103/PhysRevC.102.034604
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset32811.


2020SE02      Phys.Rev.Lett. 124, 052501 (2020)

N.Sensharma, U.Garg, Q.B.Chen, S.Frauendorf, D.P.Burdette, J.L.Cozzi, K.B.Howard, S.Zhu, M.P.Carpenter, P.Copp, F.G.Kondev, T.Lauritsen, J.Li, D.Seweryniak, J.Wu, A.D.Ayangeakaa, D.J.Hartley, R.V.F.Janssens, A.M.Forney, W.B.Walters, S.S.Ghugre, R.Palit

Longitudinal Wobbling Motion in 187Au

NUCLEAR REACTIONS 174Yb(19F, X)187Au, E=105, 115 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies and intensities, J, π, yrast band, B(M1)/B(E2). Comparison with PRM calculations.

doi: 10.1103/PhysRevLett.124.052501
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2020WE04      Ann.Nucl.Energy 140, 107301 (2020)

J.Wen, Y.Yang, Z.Wen, R.Liu, X.Liu, Z.Han, Q.Chen, Z.Ren, Q.An, H.Bai, J.Bao, P.Cao, Y.Chen, P.Cheng, Z.Cui, R.Fan, C.Feng, M.Gu, F.Guo, C.Han, G.He, Y.He, Y.He, H.Huang, W.Huang, X.Huang, X.Ji, X.Ji, H.Jiang, W.Jiang, H.Jing, L.Kang, M.Kang, B.Li, L.Li, Q.Li, X.Li, Y.Li, Y.Li, S.Liu, G.Luan, Y.Ma, C.Ning, B.Qi, J.Ren, X.Ruan, Z.Song, H.Sun, X.Sun, Z.Sun, Z.Tan, H.Tang, J.Tang, P.Wang, Q.Wang, T.Wang, Y.Wang, Z.Wang, Z.Wang, Q.Wu, X.Wu, X.Wu, L.Xie, H.Yi, L.Yu, T.Yu, Y.Yu, G.Zhang, J.Zhang, L.Zhang, L.Zhang, Q.Zhang, Q.Zhang, X.Zhang, Y.Zhang, Z.Zhang, Y.Zhao, L.Zhou, Z.Zhou, D.Zhu, K.Zhu, P.Zhu

Measurement of the U-238/U-235 fission cross section ratio at CSNS - Back-in WNS

NUCLEAR REACTIONS 235,238U(n, F), E=1-20 MeV; measured reaction products, fission fragments, Eγ, Iγ; deduced neutron resonances, σ. Comparison with ENDF/B-VIII.0 library evaluations.

doi: 10.1016/j.anucene.2019.107301
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2020ZH26      Chin.Phys.C 44, 094001 (2020)

J.Zhong, Y.-J.Ma, X.-G.Wu, B.-J.Zhu, C.-B.Li, G.-S.Li, Y.Zheng, Q.-M.Chen, C.-Y.He, L.-T.Deng, W.-K.Zhou, K.-Y.Ma, D.Yang, H.Guo, J.-Q.Wang, X.Guang, J.Sun, H.-B.Sun, S.-P.Hu, L.Gan, H.-G.Zhao, Q.Luo, Z.-X.Wu

Lifetime measurement for the 21+ state in 106Cd

NUCLEAR REACTIONS 94Zr(16O, 4n)106Cd, E=87 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, lifetime, B(E2). The Recoil Distance Doppler Shift technique in combination with the Differential Decay Curve Method.

doi: 10.1088/1674-1137/44/9/094001
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2019CH30      Phys.Rev. C 99, 064326 (2019)

Q.B.Chen, N.Kaiser, Ulf-G.Meissner, J.Meng

Behavior of the collective rotor in nuclear chiral motion

doi: 10.1103/PhysRevC.99.064326
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2019CH37      Eur.Phys.J. A 55, 115 (2019), Erratum Eur.Phys.J. A 55, 145 (2019)

Y.Chen, G.Luan, J.Bao, H.Jing, L.Zhang, Q.An, H.Bai, P.Cao, Q.Chen, P.Cheng, Z.Cui, R.Fan, C.Feng, M.Gu, F.Guo, Ch.Han, Z.Han, G.He, Y.He, Y.He, H.Huang, W.Huang, X.Huang, X.Ji, X.Ji, H.Jiang, W.Jiang, L.Kang, M.Kang, B.Li, L.Li, Q.Li, X.Li, Y.Li, Y.Li, R.Liu, S.Liu, X.Liu, Y.Ma, C.Ning, B.Qi, J.Ren, X.Ruan, Z.Song, H.Sun, X.Sun, Z.Sun, Z.Tan, H.Tang, J.Tang, P.Wang, Q.Wang, T.Wang, Y.Wang, Z.Wang, Z.Wang, J.Wen, Z.Wen, Q.Wu, X.Wu, X.Wu, L.Xie, Y.Yang, H.Yi, L.Yu, T.Yu, Y.Yu, G.Zhang, J.Zhang, L.Zhang, Q.Zhang, Q.Zhang, X.Zhang, Y.Zhang, Z.Zhang, Y.Zhao, L.Zhou, Z.Zhou, D.Zhu, K.Zhu, P.Zhu

Neutron energy spectrum measurement of the Back-n white neutron source at CSNS

doi: 10.1140/epja/i2019-12808-1
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2019CH49      Phys.Rev. C 100, 061301 (2019)

Q.B.Chen, S.Frauendorf, C.M.Petrache

Transverse wobbling in an even-even nucleus

NUCLEAR STRUCTURE 130Ba; calculated mixing ratios, B(M1, in)/B(E2, out), B(E2, in)/B(E2, out) for the two bands built on the πh11/22 configuration using constrained triaxial covariant density functional theory (CDFT) combined with quantum particle rotor model (PRM) calculations; analyzed angular momentum versus spin plots. Comparison with experimental data. Discussed transverse wobbling motion of a two-quasiparticle configuration in an even-even nucleus.

doi: 10.1103/PhysRevC.100.061301
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2019JI07      Chin.Phys.C 43, 124002 (2019)

H.Jiang, W.Jiang, H.Bai, Z.Cui, G.Zhang, R.Fan, H.Yi, C.Ning, L.Zhou, J.Tang, Q.An, J.Bao, Y.Bao, P.Cao, H.Chen, Q.Chen, Y.Chen, Y.Chen, Z.Chen, C.Feng, K.Gao, M.Gu, C.Han, Z.Han, G.He, Y.He, Y.Hong, H.Huang, W.Huang, X.Huang, X.Ji, X.Ji, Z.Jiang, H.Jing, L.Kang, M.Kang, B.Li, C.Li, J.Li, L.Li, Q.Li, X.Li, Y.Li, R.Liu, S.Liu, X.Liu, G.Luan, Q.Mu, B.Qi, J.Ren, Z.Ren, X.Ruan, Z.Song, Y.Song, H.Sun, K.Sun, X.Sun, Z.Sun, Z.Tan, H.Tang, X.Tang, B.Tian, L.Wang, P.Wang, Q.Wang, T.Wang, Z.Wang, J.Wen, Z.Wen, Q.Wu, X.Wu, X.Wu, L.Xie, Y.Yang, L.Yu, T.Yu, Y.Yu, L.Zhang, Q.Zhang, X.Zhang, Y.Zhang, Z.Zhang, Y.Zhao, L.Zhou, Z.Zhou, D.Zhu, K.Zhu, P.Zhu

Measurements of differential and angle-integrated cross sections for the 10B(n, α)7Li reaction in the neutron energy range from 1.0 eV to 2.5 MeV

NUCLEAR REACTIONS 10B(n, α), E=0.000001-2.5 MeV; measured reaction products, Eα, Iα; deduced σ(θ), σ and uncertainties. Comparison with ENDF/B-VIII.0, JEFF-3.3, CENDL-3.1 and JENDL 4.0 libraries.

doi: 10.1088/1674-1137/43/12/124002
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset32804.


2019LI45      Phys.Rev. C 100, 044318 (2019)

C.G.Li, Q.B.Chen, S.Q.Zhang, C.Xu, H.Hua, S.Y.Wang, R.A.Bark, S.M.Wyngaardt, Z.Shi, A.C.Dai, C.G.Wang, X.Q.Li, Z.H.Li, J.Meng, F.R.Xu, Y.L.Ye, D.X.Jiang, R.Han, C.Y.Niu, Z.Q.Chen, H.Y.Wu, X.Wang, D.W.Luo, C.G.Wu, S.Wang, D.P.Sun, C.Liu, Z.Q.Li, B.H.Sun, P.Jones, L.Msebi, J.F.Sharpey-Schafer, T.Dinoko, E.A.Lawrie, S.S.Ntshangase, B.V.Kheswa, O.Shirinda, N.Khumalo, T.D.Bucher, K.L.Malatji

"Stapler" mechanism for a dipole band in 79Se

NUCLEAR REACTIONS 82Se(α, 3nα)79Se, E=65, 68 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO) using AFRODITE array of eight Compton-suppressed clover detectors at the iThemba LABS accelerator facility. 79Se; deduced levels, J, π, multipolarities, negative-parity dipole band interpreted as a stapler band, B(M1)/B(E2), configuration. Comparison with calculations using the self-consistent tilted axis cranking covariant density functional theory (TAC-CDFT).

doi: 10.1103/PhysRevC.100.044318
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2019LV01      Phys.Rev. C 100, 024314 (2019), Erratum Phys.Rev. C 103, 019901 (2021)

B.F.Lv, C.M.Petrache, Q.B.Chen, J.Meng, A.Astier, E.Dupont, P.Greenlees, H.Badran, T.Calverley, D.M.Cox, T.Grahn, J.Hilton, R.Julin, S.Juutinen, J.Konki, J.Pakarinen, P.Papadakis, J.Partanen, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, S.Stolze, J.Uusitalo, B.Cederwall, A.Ertoprak, H.Liu, S.Guo, M.L.Liu, J.G.Wang, X.H.Zhou, I.Kuti, J.Timar, A.Tucholski, J.Srebrny, C.Andreoiu

Chirality of 135Nd reexamined: Evidence for multiple chiral doublet bands

NUCLEAR REACTIONS 100Mo(40Ar, 5n), E=152 MeV from the K130 cyclotron at the University of Jyvaskyla; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), angular distribution ratios using the JUROGAM-II array, with 39 Compton-suppressed Ge detectors. 135Nd; deduced high-spin levels, J, π, multipolarities, rotational and two sets of chiral-doublet bands, alignments, B(M1)/B(E2) ratios, configurations. Comparison with constrained density functional theory (CDFT) and particle-rotor model (PRM) calculations.

doi: 10.1103/PhysRevC.100.024314
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2019PE12      Phys.Lett. B 795, 241 (2019)

C.M.Petrache, P.M.Walker, S.Guo, Q.B.Chen, S.Frauendorf, Y.X.Liu, R.A.Wyss, D.Mengoni, Y.H.Qiang, A.Astier, E.Dupont, R.Li, B.F.Lv, K.K.Zheng, D.Bazzacco, A.Boso, A.Goasduff, F.Recchia, D.Testov, F.Galtarossa, G.Jaworski, D.R.Napoli, S.Riccetto, M.Siciliano, J.J.Valiente-Dobon, M.L.Liu, X.H.Zhou, J.G.Wang, C.Andreoiu, F.H.Garcia, K.Ortner, K.Whitmore, T.Back, B.Cederwall, E.A.Lawrie, I.Kuti, D.Sohler, J.Timar, T.Marchlewski, J.Srebrny, A.Tucholski

Diversity of shapes and rotations in the γ-soft 130Ba nucleus: First observation of a t-band in the A = 130 mass region

NUCLEAR REACTIONS 122Sn(13C, 5n), E=65 MeV; measured reaction products, Eγ, Iγ; deduced energy levels, J, π, B(M1)/B(E2), quasiparticle t-band and the odd-spin partners of the S-bands built on prolate 2qp-proton and oblate 2qp-neutron configurations. Comparison with theoretical calculations.

doi: 10.1016/j.physletb.2019.06.040
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2019QI01      Phys.Rev. C 99, 014307 (2019)

Y.H.Qiang, C.M.Petrache, S.Guo, P.M.Walker, D.Mengoni, Q.B.Chen, B.F.Lv, A.Astier, E.Dupont, M.L.Liu, X.H.Zhou, J.G.Wang, D.Bazzacco, A.Boso, A.Goasduff, F.Recchia, D.Testov, F.Galtarossa, G.Jaworski, D.R.Napoli, S.Riccetto, M.Siciliano, J.J.Valiente-Dobon, C.Andreoiu, F.H.Garcia, K.Ortner, K.Whitmore, B.Cederwall, E.A.Lawrie, I.Kuti, D.Sohler, T.Marchlewski, J.Srebrny, A.Tucholski, A.C.Dai, F.R.Xu

Identification of high-K rotation in 130Ba: Testing the consistency of electromagnetic observables

NUCLEAR REACTIONS 122Sn(13C, 5n), E=65 MeV; measured Eγ, Iγ, γγ- and (particle)γ-coin, γγ(θ) using GALILEO array of 25 Compton-suppressed Ge detectors for γ detection, EUCLIDES silicon detector array for charged particles, and the Neutron Wall for neutron detection at the XTU Tandem accelerator facility of INFN-LNL-Legnaro. 130Ba; deduced high-spin levels, J, π, bands, band built on a millisecond Kπ=8- isomer, multipolarities, mixing ratios, configuration, B(E2) ratios, (gK-gR)/Q0 ratios, alignments for the g.s. and Kπ=8- bands, moment of inertia for the 8- band. Systematics of energies relative to a rigid rotor for the bands built on the Kπ=8- isomers in N=74 isotones: 128Xe, 130Ba, 132Ce, 134Nd, 136Sm, 138Gd. Comparison with particle-rotor model calculations.

doi: 10.1103/PhysRevC.99.014307
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2019SE06      Phys.Lett. B 792, 170 (2019), Erratum Phys.Lett. B 820, 136556 (2021)

N.Sensharma, U.Garg, S.Zhu, A.D.Ayangeakaa, S.Frauendorf, W.Li, G.H.Bhat, J.A.Sheikh, M.P.Carpenter, Q.B.Chen, J.L.Cozzi, S.S.Ghugre, Y.K.Gupta, D.J.Hartley, K.B.Howard, R.V.F.Janssens, F.G.Kondev, T.C.McMaken, R.Palit, J.Sethi, D.Seweryniak, R.P.Singh

Two-phonon wobbling in 135Pr

NUCLEAR STRUCTURE 135Pr; analyzed available data; deduced wobbling. Comparison with theoretical calculations in the framework of the quasiparticle triaxial rotor and triaxial projected shell models.

doi: 10.1016/j.physletb.2019.03.038
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2019TI02      Phys.Rev.Lett. 122, 062501 (2019)

J.Timar, Q.B.Chen, B.Kruzsicz, D.Sohler, I.Kuti, S.Q.Zhang, J.Meng, P.Joshi, R.Wadsworth, K.Starosta, A.Algora, P.Bednarczyk, D.Curien, Zs.Dombradi, G.Duchene, A.Gizon, J.Gizon, D.G.Jenkins, T.Koike, A.Krasznahorkay, J.Molnar, B.M.Nyako, E.S.Paul, G.Rainovski, J.N.Scheurer, A.J.Simons, C.Vaman, L.Zolnai

Experimental Evidence for Transverse Wobbling in 105Pd

NUCLEAR REACTIONS 96Zr(13C, 4n), E not given; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, B(M1)/B(E2), B(E2)/B(E2), transverse wobbling, wobbling bands.

doi: 10.1103/PhysRevLett.122.062501
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2019WA22      Phys.Rev. C 100, 014328 (2019)

S.G.Wahid, S.K.Tandel, P.Chowdhury, R.V.F.Janssens, M.P.Carpenter, T.L.Khoo, F.G.Kondev, T.Lauritsen, C.J.Lister, D.Seweryniak, S.Zhu, Q.B.Chen, J.Meng

Structure of odd-A Pt isotopes along the line of stability

NUCLEAR REACTIONS 197Au(209Bi, X)193Pt/195Pt/197Pt, E=1450 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), half-lives of isomers by centroid-shift technique using the Gammasphere array at ATLAS-ANL facility. 193,195,197Pt; deduced levels, J, π, multipolarities, alignments, configurations. Comparison with theoretical calculations.

NUCLEAR STRUCTURE 193,195,197Pt; calculated levels, J, π, total energy surfaces, and B(E2); deduced shapes and band crossings. Tilted axis cranking covariant density functional theory (TAC-CDFT) using the Ultimate Cranker code. Comparison with experimental data. Systematics of positive-parity levels in A=189-196 even- and odd-A Pt isotopes.

doi: 10.1103/PhysRevC.100.014328
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2019ZH25      Phys.Rev. C 99, 054319 (2019)

P.W.Zhao, Y.K.Wang, Q.B.Chen

Microscopic resolution of the nuclear chiral conundrum with crossing twin bands in 106Ag

NUCLEAR STRUCTURE 106Ag; calculated levels, J, π, rotational frequencies, potential energy surface in (β, γ) plane, total Routhian curves, B(M1), and B(E2) for the two- and four-quasiparticle configurations and chiral vibration bands using three-dimensional tilted axis cranking covariant density functional theory (3DTAC-DFT). Comparison with experimental data.

doi: 10.1103/PhysRevC.99.054319
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2019ZH34      Phys.Rev. C 100, 014325 (2019)

Y.Zheng, Y.H.Wu, X.G.Wu, C.B.Li, L.H.Zhu, T.X.Li, P.W.Luo, G.S.Li, C.Y.He, H.W.Li, S.P.Hu, J.J.Liu, J.L.Wang, S.H.Yao, Q.M.Chen, J.Zhong, J.B.Lu, K.Y.Ma, D.Yang

Reinvestigation of the high-spin level structure of 92Nb: Excitations across the Z=38 and N=50 closed shells

NUCLEAR REACTIONS 82Se(14N, 4n), E=54 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(ADO) using Compton-suppressed HPGe array for γ detection at the HI-13 tandem accelerator of the CIAE-Beijing. 92Nb; deduced high-spin levels, J, π. Comparison with shell model calculations.

NUCLEAR STRUCTURE 92Nb; calculated high-spin levels, J, π, partition of the wave functions, and seniority using shell model with NUSHELLX code, GWB model space and GWBXG interaction. Comparison with experimental data.

doi: 10.1103/PhysRevC.100.014325
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2018CH18      Phys.Rev. C 97, 041303 (2018)

Q.B.Chen, K.Starosta, T.Koike

Three-level mixing model for nuclear chiral rotation: Role of the planar component

doi: 10.1103/PhysRevC.97.041303
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2018CH32      Phys.Rev. C 97, 064320 (2018)

Q.B.Chen, N.Kaiser, Ulf-G.Meissner, J.Meng

Effective field theory for collective rotations and vibrations of triaxially deformed nuclei

NUCLEAR STRUCTURE 108,110,112Ru; calculated levels, J, π for ground band, γ band, and K=4 bands, potential energy surfaces in (β2, γ2) plane, and mass parameters Bββ, Bβγ and Bγγ as function of γ2 parameter. Effective field theory (EFT) for triaxially deformed even-even nuclei with Hamiltonian constructed up to next-to-leading order (NLO). Comparison with experimental data.

doi: 10.1103/PhysRevC.97.064320
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2018CH35      Phys.Lett. B 782, 744 (2018)

Q.B.Chen, B.F.Lv, C.M.Petrache, J.Meng

Multiple chiral doublets in four-j shells particle rotor model: Five possible chiral doublets in 13660Nd76

NUCLEAR STRUCTURE 136Nd; calculated energy levels, B(M1)/B(E2) values. A particle rotor model.

doi: 10.1016/j.physletb.2018.06.030
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2018CH47      Phys.Rev. C 98, 031303 (2018)

Q.B.Chen, J.Meng

Reexamining nuclear chiral geometry from the orientation of the angular momentum

doi: 10.1103/PhysRevC.98.031303
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2018GR01      Phys.Rev.Lett. 120, 022502 (2018)

E.Grodner, J.Srebrny, Ch.Droste, L.Prochniak, S.G.Rohozinski, M.Kowalczyk, M.Ionescu-Bujor, C.A.Ur, K.Starosta, T.Ahn, M.Kisielinski, T.Marchlewski, S.Aydin, F.Recchia, G.Georgiev, R.Lozeva, E.Fiori, M.Zielinska, Q.B.Chen, S.Q.Zhang, L.F.Yu, P.W.Zhao, J.Meng

First Measurement of the g Factor in the Chiral Band: The Case of the Cs128 Isomeric State

RADIOACTIVITY 128Cs(IT); measured decay products, Eγ, Iγ; deduced g factor, γ-ray energies, Larmor frequency of precession.

doi: 10.1103/PhysRevLett.120.022502
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2018NI04      Phys.Rev. C 97, 034322 (2018)

C.Y.Niu, A.C.Dai, C.Xu, H.Hua, S.Q.Zhang, S.Y.Wang, R.A.Bark, J.Meng, C.G.Wang, X.G.Wu, X.Q.Li, Z.H.Li, S.M.Wyngaardt, H.L.Zang, Z.Q.Chen, H.Y.Wu, F.R.Xu, Y.L.Ye, D.X.Jiang, R.Han, C.G.Li, X.C.Chen, Q.Liu, J.Feng, B.Yang, Z.H.Li, S.Wang, D.P.Sun, C.Liu, Z.Q.Li, N.B.Zhang, R.J.Guo, G.S.Li, C.Y.He, Y.Zheng, C.B.Li, Q.M.Chen, J.Zhong, W.K.Zhou, B.J.Zhu, L.T.Deng, M.L.Liu, J.G.Wang, P.Jones, E.A.Lawrie, J.J.Lawrie, J.F.Sharpey-Schafer, M.Wiedeking, S.N.T.Majola, T.D.Bucher, T.Dinoko, B.Magabuka, L.Makhathini, L.Mdletshe, N.A.Khumalo, O.Shirinda, K.Sowazi

Spectroscopic study of the possibly triaxial transitional nucleus 75Ge

NUCLEAR REACTIONS 74Ge(α, n2p), E=58.6, 62.6 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(ADO ratios) using AFRODITE array at the Separated Sector Cyclotron of iThemba LABS, South Africa. 75Ge; deduced high-spin levels, J, π, collective bands, configurations. Systematics of level structures in N=43 isotones 75Ge, 77Se and 79Kr; calculated configuration-constrained potential energy surfaces (PES). Comparison of levels with triaxial particle rotor model calculations.

doi: 10.1103/PhysRevC.97.034322
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2018PE09      Phys.Rev. C 98, 024320 (2018)

J.Peng, Q.B.Chen

Exploring nuclear multiple chirality in the A ≈ 60 mass region within covariant density functional theory

NUCLEAR STRUCTURE 54,56,57,58,59,60Co; calculated single-proton and single-neutron Routhians near the Fermi surface for the ground states, potential energy curves and triaxial deformation parameter γ as functions of β deformation parameter and valence configurations, chiral or multiple chiral doublets. Adiabatic and configuration-fixed constrained triaxial covariant density functional theory (CDFT).

doi: 10.1103/PhysRevC.98.024320
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2018SH13      Phys.Rev. C 97, 034317 (2018)

Z.Shi, Z.H.Zhang, Q.B.Chen, S.Q.Zhang, J.Meng

Shell-model-like approach based on cranking covariant density functional theory: Band crossing and shape evolution in 60Fe

NUCLEAR STRUCTURE 60Fe; calculated neutron and proton single-particle Routhians, total Routhian surfaces in (β, γ) plane; analyzed rotational structures, bandheads, rotational spectra, and relations between the angular momentum and rotational frequency for the positive- and negative-parity bands, and triaxial deformation. Shell-model-like approach to treat the cranking many-body Hamiltonian based on covariant density functional theory including pairing correlations. Comparison with experimental data.

doi: 10.1103/PhysRevC.97.034317
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2018SH17      Eur.Phys.J. A 54, 53 (2018)

Z.Shi, Q.B.Chen, S.Q.Zhang

Low-lying states in even Gd isotopes studied with five-dimensional collective Hamiltonian based on covariant density functional theory

NUCLEAR STRUCTURE 148,150,152,154,156,158,160,162Gd; calculated levels, J, π, rotational bands, deformation, B(E2) using five-dimensional collective Hamiltonian based on the covariant density functional theory.

doi: 10.1140/epja/i2018-12490-9
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2018ST15      Phys.Rev. C 98, 044314 (2018)

E.Streck, Q.B.Chen, N.Kaiser, Ulf-G.Meissner

Behavior of the collective rotor in wobbling motion

NUCLEAR STRUCTURE 135Pr; calculated level energies and wobbling frequency, energy of the collective rotor and single-proton energy expectation values, distributions of the orientation of the angular momentum of the yrast (zero phonon) and wobbling (one phonon) bands, probability distribution of the rotor angular momentum with its projection onto each principal axis, proton angular momentum with and without pairing correlations; analyzed separate contributions from the rotor and the single-particle Hamiltonian to the wobbling frequencies. Particle-rotor model (PRM) calculations. Comparison with experimental values.

doi: 10.1103/PhysRevC.98.044314
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2018WU09      Phys.Rev. C 98, 064302 (2018)

X.H.Wu, Q.B.Chen, P.W.Zhao, S.Q.Zhang, J.Meng

Two-dimensional collective Hamiltonian for chiral and wobbling modes. II. Electromagnetic transitions

doi: 10.1103/PhysRevC.98.064302
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2018XU08      Eur.Phys.J. A 54, 83 (2018)

Q.Xu, Z.G.Xiao, S.J.Zhu, C.Qi, H.Jia, B.Qi, R.S.Wang, W.J.Cheng, Y.Zhang, H.Yi, L.M.Lu, Y.J.Wang, H.J.Li, Y.Huang, Z.Zhang, X.G.Wu, C.B.Li, Y.Zheng, Q.M.Chen, W.K.Zhou, G.S.Li

Investigation of high spin states in 133Cs

NUCLEAR REACTIONS 130Te(7Li, 4n), E=38 MeV; measured in-beam Eγ, Iγ(θ), γγ-coin using 12 Compton-suppressed Ge detectors at HI-13 Tandem at CIAE (China Institute of Atomic Energy). 133Cs; deduced level scheme, levels, J, π up to high spin of 31/2, rotational bands, γ transition intensities; updated systematics of 2+ states in N=78 even-even isotopes of A=130-134. 133Cs, 132Xe; calculated levels, J, π, B(M1)/B(E2), moments of inertia using large-scale shell model; compared to experimental data.

doi: 10.1140/epja/i2018-12520-8
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2017CH48      Phys.Rev. C 96, 051303 (2017)

F.Q.Chen, Q.B.Chen, Y.A.Luo, J.Meng, S.Q.Zhang

Chiral geometry in symmetry-restored states: Chiral doublet bands in 128Cs

NUCLEAR STRUCTURE 128Cs; calculated levels, J, π, B(E2), B(M1), K distributions for the angular momentum on the short, intermediate, and long axes, azimuthal plots for orientation of angular momentum on the (θ, φ) plane, chiral doublet bands. Angular momentum projection (AMP) approach. Comparison with experimental data.

doi: 10.1103/PhysRevC.96.051303
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2017CH52      Eur.Phys.J. A 53, 204 (2017)

Q.B.Chen, N.Kaiser, Ulf-G.Meissner, J.Meng

Effective field theory for triaxially deformed nuclei

NUCLEAR STRUCTURE 102,104,106,108,110,112Ru; calculated alignment, rotational γ bands energy vs spin, energy surface, deformations using effective field theory triaxial rotor model (LO and NLO) and 5DCH (5-Dimensional Collective Hamiltonian); deduced models of inertia, other model parameters using the fit to data.

doi: 10.1140/epja/i2017-12404-5
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2017HA23      Phys.Lett. B 772, 529 (2017)

R.Han, X.Q.Li, W.G.Jiang, Z.H.Li, H.Hua, S.Q.Zhang, C.X.Yuan, D.X.Jiang, Y.L.Ye, J.Li, Z.H.Li, F.R.Xu, Q.B.Chen, J.Meng, J.S.Wang, C.Xu, Y.L.Sun, C.G.Wang, H.Y.Wu, C.Y.Niu, C.G.Li, C.He, W.Jiang, P.J.Li, H.L.Zang, J.Feng, S.D.Chen, Q.Liu, X.C.Chen, H.S.Xu, Z.G.Hu, Y.Y.Yang, P.Ma, J.B.Ma, S.L.Jin, Z.Bai, M.R.Huang, Y.J.Zhou, W.H.Ma, Y.Li, X.H.Zhou, Y.H.Zhang, G.Q.Xiao, W.L.Zhan

Northern boundary of the "island of inversion" and triaxiality in 34Si

RADIOACTIVITY 34Al(β-) [from 9Be(40Ar, X), E=69.2 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced γ-ray energies, J, π, isomer T1/2. Comparison with shell model calculations using Gogny D1S and SDPF-M interactions.

RADIOACTIVITY 27,28Ne, 28,29,30,31Na, 30,31,32,33Mg, 32,33,34,35Al, 36,37Si(β-); measured decay products; deduced T1/2. Comparison with ENSDF values.

doi: 10.1016/j.physletb.2017.07.007
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2017LI02      Phys.Lett. B 766, 107 (2017)

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

Observation of a novel stapler band in 75As

NUCLEAR REACTIONS 70Zn(9Be, 3np)75As, E=42 MeV; measured reaction products, Eγ, Iγ; deduced dipole band, deformation parameters, composition of the proton and neutron angular momenta, energy spectrum. Comparison with self-consistent tilted axis cranking covariant density functional theory.

doi: 10.1016/j.physletb.2016.12.059
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2017QU03      Phys.Rev. C 95, 054321 (2017)

S.Quan, Q.Chen, Z.P.Li, T.Niksic, D.Vretenar

Global analysis of quadrupole shape invariants based on covariant energy density functionals

NUCLEAR STRUCTURE Z=8-108, N=8-160; analyzed structure of 621 even-even nuclides for energies of energies of first three 2+ states, first 4+ and second 0+ states, and B(E2) for the first 2+ states, absolute differences between the calculated βeffcos3γeff and βeff for the two lowest 0+ states in 621 nuclei, calculated ratios E(second 0+)/E(first 2+). five-dimensional collective Hamiltonian model based on the relativistic energy density functional PC-PK1 and a finite range pairing interaction. Comparison with experimental data.

doi: 10.1103/PhysRevC.95.054321
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2017ZH02      Phys.Rev. C 95, 014308 (2017)

B.J.Zhu, C.B.Li, X.G.Wu, J.Zhong, Q.M.Chen, Y.Zheng, C.Y.He, W.K.Zhou, L.T.Deng, G.S.Li

Investigation of the anomalously low B (E2;4+1 → 2+1) /B (E2;2+1 → 0+1) ratio in 134Ce through lifetime measurements

NUCLEAR REACTIONS 122Sn(16O, 4n), E=76 MeV; measured Eγ, γγ-coin, level half-lives by recoil-distance Doppler-shift (RDDS) method using a plunger device and ten Compton-suppressed HPGe detectors at the HI-13 tandem accelerator of CIAE-Beijing facility. 134Ce; deduced B(E2) values for the first 2+ and 4+ states, and second 10+ and 12+ states. Comparison with interacting boson model calculations. Systematics of B(E2) for first 2+ states, E(first 4+)/E(first 2+), and B(E2)(first 4+)/B(E2)(first 2+) for 126,128,130,132,134,136,138Ce, and comparison with predictions of IBM-1 calculations.

doi: 10.1103/PhysRevC.95.014308
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2016CH13      Phys.Rev. C 93, 044310 (2016)

Q.M.Chen, X.G.Wu, Y.S.Chen, C.B.Li, Z.C.Gao, G.S.Li, F.Q.Chen, C.Y.He, Y.Zheng, S.P.Hu, J.Zhong, Y.H.Wu, H.W.Li, P.W.Luo

Lifetime measurements in 180Pt

NUCLEAR REACTIONS 156Gd(28Si, 4n), E=144 MeV; measured Eγ, Iγ, γγ-coin, level half-lives by recoil-distance Doppler shift method using a plunger and differential decay curve analysis at HI-13 tandem accelerator of CIAE-Beijing. 180Pt; deduced levels, J, π, B(E2), transition quadrupole moments for levels in the yrast band. Systematics of B(E2), E(4+)/E(2+) ratios, yrast and γ bands in 176,178,180,182,184,186Pt. Comparison with triaxial projected shell model (TPSM) calculations.

doi: 10.1103/PhysRevC.93.044310
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2016CH44      Phys.Rev. C 94, 044301 (2016)

Q.B.Chen, S.Q.Zhang, P.W.Zhao, R.V.Jolos, J.Meng

Two-dimensional collective Hamiltonian for chiral and wobbling modes

doi: 10.1103/PhysRevC.94.044301
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2016CH46      Phys.Rev. C 94, 054308 (2016)

Q.B.Chen, S.Q.Zhang, J.Meng

Wobbling motion in 135Pr within a collective Hamiltonian

NUCLEAR STRUCTURE 135Pr; calculated total Routhian surface contour plots, levels, J, π, rotational frequencies for the yrast and wobbling bands, mass parameter, effective moments of inertia of the three principal axes. Tilted axis cranking (TAC) model and harmonic frozen alignment (HFA) formula. Comparison with experimental data.

doi: 10.1103/PhysRevC.94.054308
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2016HU01      Phys.Rev. C 93, 014621 (2016)

S.P.Hu, G.L.Zhang, J.C.Yang, H.Q.Zhang, P.R.S.Gomes, J.Lubian, J.L.Ferreira, X.G.Wu, J.Zhong, C.Y.He, Y.Zheng, C.B.Li, G.S.Li, W.W.Qu, F.Wang, L.Zheng, L.Yu, Q.M.Chen, P.W.Luo, H.W.Li, Y.H.Wu, W.K.Zhou, B.J.Zhu, H.B.Sun

One-neutron stripping processes to excited states of the 6Li + 96Zr reaction at near-barrier energies

NUCLEAR REACTIONS 96Zr(6Li, X)97Zr, E=14-28 MeV; measured particle spectra of α, protons and deuterons from break-up process, Eγ, Iγ, γγ-coin, fusion σ(E) for one-neutron stripping reaction at HI-13 Tandem Accelerator of CIAE-Beijing. Breakup of 6Li. 97Zr; deduced levels, J, π. No evidence of two-neutron transfer. Comparison of fusion σ(E) with coupled reaction channel (CRC) calculations for the one-neutron stripping of 6Li.

NUCLEAR STRUCTURE 96,97Zr; calculated levels, J, π, spectroscopic amplitudes using shell-model with NUSHELLX code; deduced coupling scheme between 96Zr target and 97Zr final nucleus. Comparison with experimental data.

doi: 10.1103/PhysRevC.93.014621
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2016HU09      Phys.Rev. C 93, 064315 (2016)

Y.Huang, Z.G.Xiao, S.J.Zhu, C.Qi, Q.Xu, W.J.Cheng, H.J.Li, L.M.Lyu, R.S.Wang, W.H.Yan, H.Yi, Y.Zhang, Q.M.Chen, C.Y.He, S.P.Hu, C.B.Li, H.W.Li, P.W.Luo, X.G.Wu, Y.H.Wu, Y.Zheng, J.Zhong

High-spin structures in the 129Xe nucleus

NUCLEAR REACTIONS 124Sn(9Be, 4n), E=36 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO) at HI-13 tandem accelerator facility of the CIAE-Beijing. 129Xe; deduced high-spin levels, J, π, band structures, configurations, multipolarities, B(M1)/B(E2), staggering parameter, moments of inertia plots. Systematics of level energies and bands in 125,127,129,131,133Xe. Comparisons with total Routhian surface and quasiparticle triaxial rotor model calculations.

doi: 10.1103/PhysRevC.93.064315
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2016LI12      Phys.Rev.Lett. 116, 112501 (2016)

C.Liu, S.Y.Wang, R.A.Bark, S.Q.Zhang, J.Meng, B.Qi, P.Jones, S.M.Wyngaardt, J.Zhao, C.Xu, S.-G.Zhou, S.Wang, D.P.Sun, L.Liu, Z.Q.Li, N.B.Zhang, H.Jia, X.Q.Li, H.Hua, Q.B.Chen, Z.G.Xiao, H.J.Li, L.H.Zhu, T.D.Bucher, T.Dinoko, J.Easton, K.Juhasz, A.Kamblawe, E.Khaleel, N.Khumalo, E.A.Lawrie, J.J.Lawrie, S.N.T.Majola, S.M.Mullins, S.Murray, J.Ndayishimye, D.Negi, S.P.Noncolela, S.S.Ntshangase, B.M.Nyako, J.N.Orce, P.Papka, J.F.Sharpey-Schafer, O.Shirinda, P.Sithole, M.A.Stankiewicz, M.Wiedeking

Evidence for Octupole Correlations in Multiple Chiral Doublet Bands

NUCLEAR REACTIONS 70Zn(12C, 3np), E=60, 65 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced energy levels, J, π, medium- amd high-spin states, yrast positive- and negative-parity bands. Comparison with microscopic multidimensionally-constrained covariant density functional theory and triaxial particle rotor model calculations.

doi: 10.1103/PhysRevLett.116.112501
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2016LI13      Phys.Rev. C 93, 034309 (2016)

H.J.Li, B.Cederwall, M.Doncel, J.Peng, Q.B.Chen, S.Q.Zhang, P.W.Zhao, J.Meng, T.Back, U.Jakobsson, K.Auranen, S.Bonig, M.Drummond, T.Grahn, P.Greenlees, A.Herzan, D.T.Joss, R.Julin, S.Juutinen, J.Konki, T.Kroll, M.Leino, C.McPeake, D.O'Donnell, R.D.Page, J.Pakarinen, J.Partanen, P.Peura, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, B.Saygi, C.Scholey, J.Sorri, S.Stolze, M.J.Taylor, A.Thornthwaite, J.Uusitalo, Z.G.Xiao

Lifetime measurements in 166Re: Collective versus magnetic rotation

NUCLEAR REACTIONS 92Mo(78Kr, n3p), E=380 MeV; measured Eγ, Iγ, recoil-gated γγ-coin, level half-lives by recoil distance Doppler-shift (RDDS) method and differential decay-curve analysis using JUROGAM-II array for γ detection, RITU separator, and GREAT spectrometer at Jyvaskyla accelerator facility. 166Re; deduced high-spin levels, J, π, B(M1), B(E2), B(E1), B(M1)/B(E2) configurations, alignments; discussed collective versus magnetic rotation; calculated total Routhian surface plot. Tilted-axis cranking calculations based on a relativistic mean-field approach (TAC-RMF).

doi: 10.1103/PhysRevC.93.034309
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2016LI41      Phys.Rev. C 94, 024337 (2016)

X.Q.Li, C.Xu, S.Q.Zhang, H.Hua, J.Meng, R.A.Bark, Q.B.Chen, C.Y.Niu, R.Han, S.M.Wyngaardt, S.Y.Wang, S.Wang, B.Qi, L.Liu, L.H.Zhu, Z.Shi, G.L.Zhang, B.H.Sun, X.Y.Le, C.Y.Song, Y.L.Ye, D.X.Jiang, F.R.Xu, Z.H.Li, J.J.Sun, Y.Shi, P.W.Zhao, W.Y.Liang, C.G.Li, C.G.Wang, X.C.Chen, Z.H.Li, D.P.Sun, C.Liu, Z.Q.Li, P.Jones, E.A.Lawrie, J.J.Lawrie, M.Wiedeking, T.D.Bucher, T.Dinoko, B.V.Kheswa, L.Makhathini, S.N.T.Majola, J.Ndayishimye, S.P.Noncolela, O.Shirinda, J.Gal, G.Kalinka, J.Molnar, B.M.Nyako, J.Timar, K.Juhasz, M.Arogunjo

Spectroscopy of 155Yb: Structure evolution in the N=85 isotones

NUCLEAR REACTIONS 144Sm(16O, 5n), E=118 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(ADO ratios) at cyclotron facility of iThemba LABS. 155Yb; deduced high-spin levels, J, π, multipolarity, bands, configurations; calculated potential energy contour in (β, γ) plane. Comparison with semiempirical shell-model (SESM) calculations. Predicted coexistence of prolate and oblate shapes from adiabatic and configuration-fixed constrained triaxial covariant density functional theory (CDFT) calculations. Systematics of low-lying levels in N=84-87 isotones: 148,149,150,151Gd, 150,151,152,153Dy, 152,153,154,155Er, 154,155,156,157Yb, 156,157,158,159Hf.

doi: 10.1103/PhysRevC.94.024337
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2016LI49      Phys.Rev. C 94, 044307 (2016)

C.B.Li, H.L.Ma, X.G.Wu, Q.M.Chen, C.Y.He, Y.Zheng, G.S.Li, Y.H.Wu, S.P.Hu, H.W.Li, L.P.Luo, J.Zhong, B.J.Zhu

Deformation and shape changes in 167W

NUCLEAR REACTIONS 142Nd(28Si, 3n), E=144 MeV; measured Eγ, Iγ, γγ-coin, level half-lives by recoil-distance Doppler shift (RDDS) method, and analyzed by differential decay-curve method (DDCM) at HI-13 tandem accelerator facility of CIAE-Beijing. 167W; deduced levels, B(E2), transition quadrupole moments, energy staggering of negative parity bands; calculated potential energy surface (PES) plots in (ϵ2, γ) plane. Comparison with cranked Nilsson-Strutinsky-Bogoliubov calculations.

doi: 10.1103/PhysRevC.94.044307
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2016MA88      Sci. Rep. 5, 17712 (2016)

Z.-C.Ma, Q.-D.Chen, B.Han, X.-Q.Liu, J.-F.Song, H.-B.Sun

Measurement of Two-Photon Absorption Cross Section of Metal Ions by a Mass Sedimentation Approach

doi: 10.1038/srep17712
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2016PE21      Phys.Rev. C 94, 064309 (2016)

C.M.Petrache, Q.B.Chen, S.Guo, A.D.Ayangeakaa, U.Garg, J.T.Matta, B.K.Nayak, D.Patel, J.Meng, M.P.Carpenter, C.J.Chiara, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, D.Seweryniak, S.Zhu, S.S.Ghugre, R.Palit

Triaxial-band structures, chirality, and magnetic rotation in 133La

NUCLEAR REACTIONS 116Cd(22Ne, 4np), E=112 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), γγ(θ) ratios using Gammasphere array at ATLAS-ANL facility. 133La; deduced high-spin levels, J, π, multipolarities, bands, alignments, B(M1)/B(E2) ratios, configurations. Comparison with calculations using cranked Nilsson-Strutinsky (CNS) model, covariant density functional theory (CDFT) with a self-consistent relativistic mean field (RMF), and the particle rotor model (PRM).

doi: 10.1103/PhysRevC.94.064309
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2016WA12      Phys.Rev. C 93, 044309 (2016)

Y.Y.Wang, Z.Shi, Q.B.Chen, S.Q.Zhang, C.Y.Song

Tidal wave in 102Pd: An extended five-dimensional collective Hamiltonian description

NUCLEAR STRUCTURE 102Pd; calculated levels, J, π, B(E2), moment of inertia for the yrast band, potential energy surface in (β-γ) plane, average values of β and γ quadrupole deformation parameters as a function of spin. Discussed tidal-wave phenomenon. Five-dimensional collective Hamiltonian (5DCH) based on covariant density functional theory. Comparison with experimental data.

doi: 10.1103/PhysRevC.93.044309
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2016ZH09      Chin.Phys.C 40, 024102 (2016)

H.Zhang, Q.Chen

Chiral geometry in multiple chiral doublet bands

doi: 10.1088/1674-1137/40/2/024102
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2016ZH61      Chin.Phys.C 40, 086002 (2016)

Y.Zheng, X.-G.Wu, G.-S.Li, C.-B.Li, C.-Y.He, Q.-M.Chen, J.Zhong, W.-K.Zhou, L.-T.Deng, B.-J.Zhu

Mini-orange spectrometer at CIAE

NUCLEAR REACTIONS 90Zr(α, n)93Mo, E=30 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin., Eβ, Iβ; deduced K/L ratio corresponds to the E4 character. Comparison with theoretical calculations.

doi: 10.1088/1674-1137/40/8/086002
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2015GU16      Phys.Rev. C 92, 014615 (2015)

C.L.Guo, G.L.Zhang, S.P.Hu, J.C.Yang, H.Q.Zhang, P.R.S.Gomes, J.Lubian, X.G.Wu, J.Zhong, C.Y.He, Y.Zheng, C.B.Li, G.S.Li, W.W.Qu, F.Wang, L.Zheng, L.Yu, Q.M.Chen, P.W.Luo, H.W.Li, Y.H.Wu, W.K.Zhou, B.J.Zhu, H.B.Sun

Coupling effects on the fusion of 6Li + 154Sm at energies slightly above the Coulomb barrier

NUCLEAR REACTIONS 154Sm(6Li, X)154Eu/156Gd/156Tb/157Tb, E=26-36 MeV; measured Eγ, Iγ from different evaporation residues formed via complete and incomplete fusion, complete and incomplete fusion σ(E), σ(E) for 3n+4n channels using on-line γ method at HI-13 Tandem Accelerator of CIAE-Beijing; deduced complete fusion suppression factor as a function of energy. Comparison with theoretical estimates using PACE2.

doi: 10.1103/PhysRevC.92.014615
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2015HU03      Phys.Rev. C 91, 044619 (2015)

S.P.Hu, G.L.Zhang, J.C.Yang, H.Q.Zhang, P.R.S.Gomes, J.Lubian, X.G.Wu, J.Zhong, C.Y.He, Y.Zheng, C.B.Li, G.S.Li, W.W.Qu, F.Wang, L.Zheng, L.Yu, Q.M.Chen, P.W.Luo, H.W.Li, Y.H.Wu, W.K.Zhou, B.J.Zhu, H.B.Sun

Small suppression of the complete fusion of the 6Li+96Zr system at near-barrier energies

NUCLEAR REACTIONS 96Zr(6Li, 2n), (6Li, 3n), (6Li, 4n), E=16-28 MeV; 96Zr(6Li, X)96Nb/98Mo/99Mo/100Mo, E=16-28 MeV; measured Eγ, Iγ, σ(E) for evaporation residues of 98,99,100Tc, complete, incomplete, and total fusion σ(E) for 96Nb and Mo isotopes using γ-activation method at Tandem Accelerator facility of CIAE-Beijing. Comparison with theoretical calculations using PACE2 code.

doi: 10.1103/PhysRevC.91.044619
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2015RA20      Phys.Rev. C 92, 064324 (2015)

M.K.Raju, P.V.Madhusudhana Rao, S.K.Tandel, P.Sugathan, R.P.Singh, S.Muralithar, T.Seshi Reddy, B.V.Thirumala Rao, J.Meng, S.Zhang, J.Li, Q.B.Chen, B.Qi, R.K.Bhowmik

High spin spectroscopy and shape coexistence in 73As

NUCLEAR REACTIONS 64Ni(12C, 2npγ), E=55 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), σ using GDA array at 15UD Pelletron facility of IUAC-New Delhi. Enriched target. 73As; deduced high-spin levels, J, π, bands, multipolarity, alignments, moment of inertia plots, signature splitting, configuration, shape coexistence; calculated potential energy surface (PES) contour in (β, γ) plane. Cranked shell-model (CSM), particle-rotor model (PRM), and relativistic mean-field (RMF) calculations.

doi: 10.1103/PhysRevC.92.064324
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2015SH18      Chin.Phys.C 39, 054105 (2015)

W.-X.Shi, Q.-B.Chen

Wobbling geometry in a simple triaxial rotor

doi: 10.1088/1674-1137/39/5/054105
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2015XU09      Phys.Rev. C 91, 061303 (2015)

C.Xu, X.Q.Li, J.Meng, S.Q.Zhang, H.Hua, S.Y.Wang, B.Qi, C.Liu, Z.G.Xiao, H.J.Li, L.H.Zhu, Z.Shi, Z.H.Li, Y.L.Ye, D.X.Jiang, J.J.Sun, Z.H.Zhang, Y.Shi, P.W.Zhao, Q.B.Chen, W.Y.Liang, R.Han, C.Y.Niu, C.G.Li, C.G.Wang, Z.H.Li, S.M.Wyngaardt, R.A.Bark, P.Papka, T.D.Bucher, A.Kamblawe, E.Khaleel, N.Khumalo, E.A.Lawrie, J.J.Lawrie, P.Jones, S.M.Mullins, S.Murray, M.Wiedeking, J.F.Sharpey-Schafer, S.N.T.Majola, J.Ndayishimye, D.Negi, S.P.Noncolela, S.S.Ntshangase, O.Shirinda, P.Sithole, M.A.Stankiewicz, J.N.Orce, T.Dinoko, J.Easton, B.M.Nyako, K.Juhasz

Spectroscopy of 76Se: Prolate-to-oblate shape transition

NUCLEAR REACTIONS 70Zn(12C, 2nα), E=60, 65 MeV; measured Eγ, Iγ, γγ-, (particle)γγ-coin using AFRODITE array for γ rays and DIAMANT array for charged particles at iThemba LABS. 76Se; deduced high-spin levels, J, π, bands, configuration, kinematic and dynamic moments of inertia, band crossing frequency, shape transition. Comparison with cranked shell-model calculations. systematics of band crossings in 70,72,74,76,78,80Se, 72,74,76,78,80,82Kr.

doi: 10.1103/PhysRevC.91.061303
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