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NSR database version of May 22, 2024.

Search: Author = J.J.Shen

Found 17 matches.

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2021JI13      Chin.Phys.C 45, 094103 (2021)

H.Jiang, Y.-j.Zhou, Y.Lei, J.-J.Shen, M.Bao

Symmetric and asymmetric structural evolutions of Te isotopes across the N=82 shell closure

NUCLEAR STRUCTURE 128,130,132,134,136,138,140Te; calculated low-lying energy levels, B(E2), g factors via the nucleon-pair approximation (NPA) of the shell model with phenomenological multipole-multipole interactions. Comparison with available data.

doi: 10.1088/1674-1137/ac0ce1
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2021SH35      Phys.Rev. C 104, 054319 (2021)

J.J.Shen, H.Jiang, G.J.Fu

Robustness of "noncollective" rotational behavior for nuclei in the presence of random interactions

NUCLEAR STRUCTURE 22Ne, 26Si, 44Ti, 46Cr; 23Mg, 23Si, 45Sc, 45Ti; calculated average excitation energies of yrast states, probability density distributions, Pearson product-moment correlation coefficients in two-body random ensemble (TBRE) model in the framework of nuclear shell model for noncollective rotational behavior of nuclei.

doi: 10.1103/PhysRevC.104.054319
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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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2019JI08      Chin.Phys.C 43, 124110 (2019)

H.Jiang, X.-L.Tang, J.-J.Shen, Y.Lei

Electromagnetic properties of neutron-rich Ge isotopes

NUCLEAR STRUCTURE 72,74,76,78,80,75,77,79Ge; calculated electric quadrupole and the dipole magnetic moments of low-lying states in the framework of the nucleon pair approximation (NPA) of the shell model. Comparison with available data.

doi: 10.1088/1674-1137/43/12/124110
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2015FU06      Phys.Rev. C 91, 054319 (2015)

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

Regularities in low-lying states of atomic nuclei with random interactions

doi: 10.1103/PhysRevC.91.054319
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2013FU02      Phys.Rev. C 87, 044309 (2013)

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

Regularities of proton-neutron interactions 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, 58,59,60,61,62,63,64,65Cu, 60,61,62,63,64,65,66Zn, 62,63,64,65,66,67Ga, 64,65,66,67,68Ge, 66,67,68,69As, 68,69,70Se, 210,211,212,213,214,215Bi, 211,212,213,214,215,216Po, 212,213,214,215,216,217At, 213,214,215,216,217,218Rn, 214,215,216,217,218,219Fr, 215,216,217,218,219,220Ra, 216,217,218,219,220,221Ac, 217,218,219,220,221,222Th; calculated isoscalar and isovector valence proton-neutron interactions (Vpn) using the shell model, and comparison with empirical extraction from experimental binding energies. Odd-even staggering, Wigner effect. Discusses possible origin of the anomaly of proton-neutron interactions.

doi: 10.1103/PhysRevC.87.044309
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2013FU04      Phys.Rev. C 87, 044312 (2013)

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

Spin-aligned isoscalar pair correlation in 96Cd, 94Ag, and 92Pd

NUCLEAR STRUCTURE 92Pd, 94Ag, 96Cd; calculated wave functions of T=0 states, levels, J, π, isomers. Nucleon-pair approximation (NPA) of the shell model with JUN45 interaction for the p1/2p3/2f5/2g9/2 shell. Discussed level-inversion isomerism in 94Ag and 96Cd.

doi: 10.1103/PhysRevC.87.044312
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2012SH19      Phys.Rev. C 85, 064325 (2012)

J.J.Shen, Y.M.Zhao, A.Arima

New perturbation method of diagonalizing the nuclear shell model Hamiltonian

NUCLEAR STRUCTURE 24Mg, 28Si, 45,46Ti, 48Cr; calculated low-lying levels, J, π, B(E2), magnetic dipole and electric quadrupole moments. New perturbation method for obtaining the lowest eigenvalues of the nuclear-shell-model Hamiltonian.

doi: 10.1103/PhysRevC.85.064325
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2011JI01      Chin.Phys.Lett. 28, 032101 (2011)

H.Jiang, J.-J.Shen, Y.-M.Zhao

Benford's Law in Nuclear Structure Physics

doi: 10.1088/0256-307X/28/3/032101
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2011JI02      J.Phys.(London) G38, 045103 (2011)

H.Jiang, J.J.Shen, Y.M.Zhao, A.Arima

Low-lying states of valence-hole nuclei in the 208Pb region

NUCLEAR STRUCTURE 197,198,199,200,201,202Ir, 198,199,200,201,202,203Pt, 199,200,201,202,203,204Au, 200,201,202,203,204,205Hg, 201,202,203,204,205,206Tl; calculated low-lying energy levels, J, π, wavefunctions, quadrupole and magnetic moments. Comparison with experimental data.

doi: 10.1088/0954-3899/38/4/045103
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2011SH15      Phys.Rev. C 83, 044322 (2011)

J.J.Shen, Y.M.Zhao, A.Arima, N.Yoshinaga

New extrapolation method for low-lying states of nuclei in the sd and the pf shells

NUCLEAR STRUCTURE 24,26Mg, 28Si, 45,46Ti; calculated levels, J, π, Quadrupole moment, magnetic moment, B(E2) using an extrapolation method for shell-model Hamiltonian.

doi: 10.1103/PhysRevC.83.044322
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2010SH13      Phys.Rev. C 82, 014309 (2010)

J.J.Shen, Y.M.Zhao, A.Arima

Lowest eigenvalue of the nuclear shell model Hamiltonian

NUCLEAR STRUCTURE 24Mg, 28Si; calculated matrix elements of the nuclear shell model Hamiltonian, levels, J, π. Exact diagonalization procedures.

doi: 10.1103/PhysRevC.82.014308
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2009YO02      Phys.Rev. C 79, 017301 (2009)

N.Yoshinaga, A.Arima, J.J.Shen, Y.M.Zhao

Correlation between eigenvalues and sorted diagonal elements of a large dimensional matrix

NUCLEAR STRUCTURE 24Mg, 28Si; calculated eigenvalues and diagonal matrix elements of a large dimensional matrix using nuclear shell model.

doi: 10.1103/PhysRevC.79.017301
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2008SH14      Phys.Rev. C 77, 054312 (2008)

J.J.Shen, Y.M.Zhao, A.Arima, N.Yoshinaga

Lowest eigenvalues of random Hamiltonians

doi: 10.1103/PhysRevC.77.054312
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2008SH22      Phys.Rev. C 78, 044305 (2008)

J.J.Shen, A.Arima, Y.M.Zhao, N.Yoshinaga

Strong correlation between eigenvalues and diagonal matrix elements

NUCLEAR STRUCTURE 24,26Mg, 28Si; calculated levels, J, π using eigenvalues of many-body systems using USD interactions. Comparison with experimental data.

doi: 10.1103/PhysRevC.78.044305
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2008ZH33      Int.J.Mod.Phys. E17, Supplement 1, 342 (2008)

L.H.Zhang, J.J.Shen, Y.Lei, Y.M.Zhao

Robustness of strong correlation between eigenvalues and diagonal matrix elements

NUCLEAR STRUCTURE 22Na, 45Ti, 132Xe; calculated correlations between eigenvalues of the lowest excited states, level spacing distributions.

doi: 10.1142/S0218301308011975
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