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NSR database version of May 24, 2024.

Search: Author = E.Y.Yeoh

Found 17 matches.

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2015LI15      Eur.Phys.J. A 51, 60 (2015)

H.J.Li, Z.G.Xiao, S.J.Zhu, C.Qi, E.Y.Yeoh, Z.Zhang, R.S.Wang, H.Yi, W.H.Yan, Q.Xu, X.G.Wu, C.Y.He, Y.Zheng, G.S.Li, C.B.Li, H.W.Li, J.J.Liu, S.P.Hu, J.L.Wang, S.H.Yao

Reinvestigation of the collective band structures in odd-odd 138Pm nucleus

NUCLEAR REACTIONS 124Te(19F, 5n), E=99-105 MeV; measured Eγ, Iγ(θ), γγ-coin using Compton-suppressed HPGe, planar HPGe and clover detector; deduced γ transitions, γ transition multipolarity, levels, J, π, high-spin states, rotational bands, yrast band using RADWARE software package for γγ-coin; calculated intrinsic configurations using TRS (total Routhian surface), inertia moments, B(M1)/B(E2), deformation using triaxial quasiparticle-rotor model.

doi: 10.1140/epja/i2015-15060-9
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2013LI24      Phys.Rev. C 87, 057303 (2013)

H.J.Li, Z.G.Xiao, S.J.Zhu, E.Y.Yeoh, Y.X.Liu, Y.Sun, Z.Zhang, R.S.Wang, H.Yi, W.H.Yan, Q.Xu, X.G.Wu, C.Y.He, Y.Zheng, G.S.Li, C.B.Li, H.W.Li, J.J.Liu, S.P.Hu, J.L.Wang, S.H.Yao

Multiphonon γ-vibrational bands in the γ-soft nucleus 138Nd

NUCLEAR REACTIONS 124Te(19F, 4np), E=103 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO) at CIAE facility. 138Nd; deduced levels, J, π, multipolarity, multiphonon γ-vibrational bands, γ softness; calculated bandhead energies as a function of triaxiality. Comparison with cranked shell-model and, triaxial projected shell-model calculations. Systematics of bandhead energies of one- and two-γ vibrational bands in 104,106Mo, 138Nd, 154Gd, 168Er.

doi: 10.1103/PhysRevC.87.057303
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2012LI54      Phys.Rev. C 86, 067302 (2012)

H.J.Li, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, Z.G.Xiao, M.Sakhaee, J.Y.Guo, S.W.Chen, N.T.Brewer, S.H.Liu, K.Li, E.Y.Yeoh, Z.Zhang, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, G.Ter-Akopian, A.Daniel, Yu.Ts.Oganessian, W.C.Ma

Identification of a new side-band and proposed octupole correlations in very neutron-rich 152Ce

RADIOACTIVITY 252Cf(SF); measured prompt γ spectrum, Eγ, Iγ, γγ-coin using Gammasphere array at LBNL. 152Ce; deduced high-spin levels, J, p, rotational bands, β2 and β3 deformations, B(E1)/B(E2) ratios, moments of inertia plots, octupole band with s=+1. Comparison with calculations in a reflection asymmetric relativistic mean-field (RAS-RMF) approach. Calculated β2 versus β3 contour plot.

doi: 10.1103/PhysRevC.86.067302
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2012YE06      Phys.Rev. C 85, 064322 (2012)

E.Y.Yeoh, S.J.Zhu, J.G.Wang, Z.G.Xiao, M.Zhang, W.H.Yan, R.S.Wang, Q.Xu, X.G.Wu, C.Y.He, G.S.Li, Y.Zheng, C.B.Li, X.P.Cao, S.P.Hu, S.H.Yao, B.B.Yu

High-spin structures in the 139Pr nucleus

NUCLEAR REACTIONS 124Sn(19F, 4n)139Pr, E=80 MeV; measured Eγ, Iγ, γγ-coin, DCO. 139Pr; deduced high-spin levels, J, π, bands, configurations, multipolarity; calculated total Routhian surface. Systematics of the low-spin levels in N=80 isotones of 137La, 136Ba, 138Ce, 139Pr, 140Nd, 141Pm; and moments of inertia for bands in 131,137La, 137,139Pr, 132Ba, 134Ce.

doi: 10.1103/PhysRevC.85.064322
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2012ZH03      Phys.Rev. C 85, 014330 (2012)

S.J.Zhu, M.Sakhaee, J.H.Hamilton, A.V.Ramayya, N.T.Brewer, J.K.Hwang, S.H.Liu, E.Y.Yeoh, Z.G.Xiao, Q.Xu, Z.Zhang, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, K.Li, W.C.Ma

Observation of new levels and proposed octupole correlations in neutron-rich 150Ce

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ) using Gammasphere array. 150Ce; deduced levels, J, π, multipolarity, high-spin rotational bands, B(E1)/B(E2) ratios, octupole bands. Systematics of octupole bands and moments of inertia plots in 144,146,148,150Ce.

doi: 10.1103/PhysRevC.85.014330
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2011GU12      Phys.Rev. C 83, 064303 (2011)

L.Gu, S.J.Zhu, J.G.Wang, E.Y.Yeoh, Z.G.Xiao, S.Q.Zhang, J.Meng, M.Zhang, Y.Lou, H.B.Ding, Q.Xu, L.H.Zhu, X.G.Wu, C.Y.He, G.S.Li, L.L.Wang, Y.Zheng, B.Zhang

Observation of high-spin oblate band structures in 141Pm

NUCLEAR REACTIONS 126Te(19F, 4n), E=90 MeV; measured Eγ, Iγ, γγ-coin, DCO. 141Pm; deduced levels, J, π, high-spin oblate bands, moments of inertia, multipolarity. Comparison with MRPM (triaxial n-particle-n-hole particle rotor model) calculations; and with systematics of moments of inertia plots for 132Ba, 131,136La and 134,136Ce.

doi: 10.1103/PhysRevC.83.064303
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2011LI25      Phys.Rev. C 83, 064310 (2011)

S.H.Liu, J.H.Hamilton, A.V.Ramayya, Y.S.Chen, Z.C.Gao, S.J.Zhu, L.Gu, E.Y.Yeoh, N.T.Brewer, J.K.Hwang, Y.X.Luo, J.O.Rasmussen, W.C.Ma, J.C.Batchelder, A.V.Daniel, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.Gelberg

Signature inversion in odd-odd 114Rh: First identification of high-spin states in very neutron-rich 114Rh and application of the triaxial projected shell model

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin, fission yields ratios using the Gammasphere array. 114Rh; deduced levels, J, π, rotational bands, signature inversion, configurations. Comparison with Triaxial Projected Shell Model calculations. Systematics of negative-parity yrast bands of odd-odd Rh nuclei with A=104-114.

doi: 10.1103/PhysRevC.83.064310
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2011LI29      Phys.Rev. C 84, 014304 (2011)

S.H.Liu, J.H.Hamilton, A.V.Ramayya, A.Gelberg, L.Gu, E.Y.Yeoh, S.J.Zhu, N.T.Brewer, J.K.Hwang, Y.X.Luo, J.O.Rasmussen, W.C.Ma, A.V.Daniel, Yu.Ts.Oganessian, G.M.Ter-Akopian

High-spin level structure of 115Rh: Evolution of triaxiality in odd-even Rh isotopes

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array. 115Rh; deduced levels, J, π, bands, moment of inertia, signature splitting, fission yield ratios. Comparison with Rotor plus particle model calculations. Systematics of level energies, signature splittings and moments of inertia plots of 107,109,111,113,115Rh nuclei.

doi: 10.1103/PhysRevC.84.014304
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2011LI41      Phys.Rev. C 84, 044303 (2011)

S.H.Liu, J.H.Hamilton, A.V.Ramayya, Y.Shi, F.R.Xu, S.J.Zhu, E.Y.Yeoh, J.C.Batchelder, N.T.Brewer, J.K.Hwang, Y.X.Luo, J.O.Rasmussen, W.C.Ma, A.V.Daniel, G.M.Ter-Akopian, Yu.Ts.Oganessian

First identification of high-spin states in the odd-odd neutron-rich nucleus 152Pr

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ) using GAMMASPHERE array. 152Pr; deduced levels, J, π, bands, conversion coefficients, multipolarity, configurations. 96,97,98,99Y, 149Ce, 151,153Pr; measured Eγ. Systematics of quasi-neutron states in 151Ce, 153Nd, 155Sm, 157Gd, 159Dy, 161Er. Comparison with total Routhian surface (TRS) calculations.

doi: 10.1103/PhysRevC.84.044303
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2011YE03      Phys.Rev. C 83, 054317 (2011)

E.Y.Yeoh, S.J.Zhu, J.H.Hamilton, K.Li, A.V.Ramayya, Y.X.Liu, J.K.Hwang, S.H.Liu, J.G.Wang, Y.Sun, J.A.Sheikh, G.H.Bhat, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, H.B.Ding, L.Gu, Q.Xu, Z.G.Xiao, W.C.Ma

High-spin structure and multiphonon γ vibrations in very neutron-rich 114Ru

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array. 114Ru; deduced levels, J, π, bands, alignments. Systematics of level energies for 108,110,112,114Ru nuclei. Calculated Routhians using cranked-shell model with triaxial deformation parameters. Triaxial projected shell-model calculations for γ-vibrational band.

doi: 10.1103/PhysRevC.83.054317
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2010GU07      Chin.Phys.Lett. 27, 062501 (2010)

L.Gu, S.-J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, S.H.Liu, J.-G.Wang, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, Q.Xu, E.Y.Yeoh, W.C.Ma

Collective Band Structures and Identification of One-Phonon and Two-Phonon γ-Vibrational Bands in 109Tc

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγγ-coin.; 109Tc; deduced level scheme, high spin states, yrast bands interpretation. Cranked shell model calculations.

doi: 10.1088/0256-307X/27/6/062501
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2010WA26      Nucl.Phys. A834, 94c (2010)

J.-G.Wang, S.-J.Zhu, J.H.Hamilton, H.-B.Ding, L.Gu, A.V.Ramayya, J.K.Hwang, S.H.Liu, K.Li, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, Q.Xu, E.-Y.Yeoh, Z.G.Xiao, W.C.Ma

Identification of Two-Phonon γ-Vibrational Bands in Odd-A Nuclei at A ∼ 100 Region

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 103Nb, 105Mo, 107Tc; deduced levels, J, π, high-spin states, 2γ-vibrational bands.

doi: 10.1016/j.nuclphysa.2010.01.028
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2010WA37      J.Phys.(London) G37, 125107 (2010)

J.G.Wang, S.J.Zhu, L.Gu, Z.G.Xiao, E.Y.Yeoh, M.Zhang, Y.Liu, H.B.Ding, Q.Xu, L.H.Zhu, X.G.Wu, Y.S.Chen, C.Y.He, G.S.Li, L.L.Wang, Y.Zhang, B.Zhang

High-spin states and collective band structures in the odd-odd 140Pm nucleus

NUCLEAR REACTIONS 126Te(19F, 5n), E=90 MeV; measured Eγ, Iγ, γ-γ-coin.; 140Pm deduced energies, level scheme, yrast bands, J, π, multipolarities. Comparison with TRS calculations.

doi: 10.1088/0954-3899/37/12/125107
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2010YE08      Phys.Rev. C 82, 027302 (2010)

E.Y.Yeoh, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, Y.X.Liu, Y.Sun, J.K.Hwang, S.H.Liu, J.G.Wang, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, H.B.Ding, L.Gu, Q.Xu, Z.G.Xiao

Identification of a quasiparticle band in very neutron-rich 104Zr

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array. 104Zr; deduced levels, J, π, bands, yrast structure, configurations. Comparison with projected shell model (PSM) calculations.

doi: 10.1103/PhysRevC.82.027302
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2010YE10      Eur.Phys.J. A 45, 147 (2010)

E.Y.Yeoh, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, Y.C.Yang, Y.Sun, J.K.Hwang, S.H.Liu, J.G.Wang, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, H.B.Ding, K.Li, L.Gu, Q.Xu, Z.G.Xiao, W.C.Ma

High-spin states and a new band based on the isomeric state in 152Nd

RADIOACTIVITY 252Cf(SF); measured prompt, β-delayed Eγ, Iγ, γγ-coin. 152Nd deduced levels, J, π, high-spin states, isomeric transition T1/2, band on isomeric state; calculated levels, J, π using projected shell model.

doi: 10.1140/epja/i2010-11001-6
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2009WA10      Phys.Lett. B 675, 420 (2009)

J.-G.Wang, S.-J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, S.H.Liu, K.Li, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, H.-B.Ding, Q.Xu, L.Gu, E.-Y.Yeoh, Z.-G.Xiao, W.C.Ma

Identification of one-phonon and two-phonon γ-vibrational bands in odd-Z 103Nb nucleus

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array. 103Nb; deduced high-spin levels, J, π, vibrational band structure.

doi: 10.1016/j.physletb.2009.04.057
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2008XU08      Phys.Rev. C 78, 064301 (2008)

Q.Xu, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, B.Qi, J.Meng, J.Peng, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, S.H.Liu, K.Li, J.G.Wang, H.B.Ding, L.Gu, E.Y.Yeoh, W.C.Ma

Identification of pseudospin partner bands in 108Tc

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 108Tc; deduced levels, J, π, bands, B(E1)/B(E2) ratios. 106,107Mo, 107Tc; deduced bands. Comparison with particle-rotor model calculations.

doi: 10.1103/PhysRevC.78.064301
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