NSR Query Results

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NSR database version of April 25, 2024.

Search: Author = A.V.Ramayya

Found 403 matches.

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2023BR07      Nucl.Phys. A1039, 122738 (2023)

N.T.Brewer, E.H.Wang, W.A.Yzaguirre, J.H.Hamilton, K.Nomura, A.V.Ramayya, S.H.Liu, J.K.Hwang, B.M.Musangu, J.M.Eldridge, C.J.Zachary, Y.X.Luo, J.O.Rasmussen, S.J.Zhu, C.Goodin, G.M.Ter-Akopian, A.V.Daniel, Yu.Ts.Oganessian

Octupole deformation in ^{143, 145, 146}Ba

RADIOACTIVITY ²⁵²Cf(SF); measured decay products, Eγ, Iγ. ^143,145,146Ba; deduced γ-ray energies and relative intensities, partial level scheme, angular correlations, octupole bands, J, π, B(E1)/B(E2). Comparison with IBM and IBFM calculations.

doi: 10.1016/j.nuclphysa.2023.122738
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Data from this article have been entered in the XUNDL database. For more information, click here.

2021LU08      Int.J.Mod.Phys. E30, 2150037 (2021)

Y.X.Luo, J.O.Rasmussen, J.H.Hamilton, A.V.Ramayya, E.H.Wang, S.Frauendorf, W.Y.Liang, C.F.Jiao, Q.Wu, H.L.Liu, F.R.Xu, Y.X.Liu, Y.Sun, J.K.Hwang, S.H.Liu, S.J.Zhu, N.T.Brewer, I.Y.Lee, G.M.Ter-Akopian, Yu.Oganessian, A.V.Daniel, R.Donangelo, W.C.Ma

First observation of collective rotational bands in neutron-rich ¹⁴²La and the study of octupole/triaxial deformations in ^{142, 143}La

RADIOACTIVITY ²⁵²Cf(SF); measured decay products, Eγ, Iγ, γ-g.-coin. ^142,143La; deduced γ-ray energies and intensities, J, π, yrast band, octupole deformation parameter. TRS model calculations.

doi: 10.1142/S0218301321500373
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Data from this article have been entered in the XUNDL database. For more information, click here.

2021MU09      Phys.Rev. C 104, 064318 (2021)

B.M.Musangu, E.H.Wang, J.H.Hamilton, S.Jehangir, G.H.Bhat, J.A.Sheikh, S.Frauendorf, C.J.Zachary, J.M.Eldridge, A.V.Ramayya, A.C.Dai, F.R.Xu, J.O.Rasmussen, Y.X.Luo, G.M.Ter-Akopian, Yu.Ts.Oganessian, S.J.Zhu

Chiral vibrations and collective bands in ^{104, 106}Mo

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, multi-fold γγ-coin, γγ(θ) using Gammasphere array of 101 Ge detectors at Lawrence Berkeley National Laboratory (LBNL). ^104,106Mo; deduced high-spin levels, J, π, rotational bands, chiral vibrational doublet bands, multipolarities, multipole mixing ratios. Comparison with Triaxial projected shell model (TPSM) calculations.

doi: 10.1103/PhysRevC.104.064318
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Data from this article have been entered in the XUNDL database. For more information, click here.

2021WA04      Phys.Rev. C 103, 014317 (2021)

E.H.Wang, J.M.Eldridge, N.T.Brewer, J.H.Hamilton, J.C.Batchelder, Y.X.Liu, Y.Sun, C.Brown, C.J.Zachary, B.M.Musangu, A.V.Ramayya, K.P.Rykaczewski, C.J.Gross, R.Grzywacz, M.Madurga, D.Miller, D.W.Stracener, C.Jost, E.F.Zganjar, J.A.Winger, M.Karny, S.V.Paulauskas, S.H.Liu, M.Wolinska-Cichocka, S.W.Padgett, A.J.Mendez, K.Miernik, A.Fijalkowska, S.V.Ilyushkin

Long-lived isomeric states and quasiparticle band structures in neutron-rich ^{162, 164}Gd nuclei from β decay

RADIOACTIVITY ^162,164Eu(β^-)[from ²³⁸U(p, F), E=50 MeV at the at the HRIB facility of ORNL]; measured Eγ, Iγ, γγ- and βγ-coin, half-lives of ¹⁶²Eu g.s. and isomer and ¹⁶⁴Eu g.s. decays, half-lives of isomers in ^162,164Gd by γ(t). ^162,164Eu; deduced J, π for the ground states, and the isomer in ¹⁶²Eu. ^162,164Gd; deduced levels, J, π, isomers, total conversion coefficients, β feedings and logft for ¹⁶⁴Eu to ¹⁶⁴Gd decay, configurations, β and γ rotational bands. Comparison with projected shell model calculations, and with systematics of K isomer hindrance factors in neighboring nuclei.

doi: 10.1103/PhysRevC.103.014317
Citations: PlumX Metrics

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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Data from this article have been entered in the XUNDL database. For more information, click here.

2021WA42      Nucl.Phys. A1015, 122281 (2021)

E.H.Wang, N.T.Brewer, J.H.Hamilton, A.V.Ramayya, W.A.Yzaguirre, J.K.Hwang, S.H.Liu, Y.X.Luo, J.O.Rasmussen, S.J.Zhu, G.M.Ter-Akopian, Yu.Ts.Oganessian

Coexistence of octupole deformation and beta and gamma vibrational bands in ¹⁴⁸Ce

RADIOACTIVITY ²⁵²Cf(SF); measured reaction products, Eγ, Iγ. ¹⁴⁸Ce; deduced γ-ray energies and intensities, J, π, high-spin states, vibrartional bands, mixing ratios.

doi: 10.1016/j.nuclphysa.2021.122281
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Data from this article have been entered in the XUNDL database. For more information, click here.

2020EL07      Phys.Rev. C 102, 044323 (2020)

J.M.Eldridge, E.H.Wang, C.J.Zachary, J.H.Hamilton, B.M.Musangu, A.V.Ramayya, G.M.Ter-Akopian, Yu.Ts.Oganessian, Y.X.Luo, J.O.Rasmussen, S.J.Zhu

Structure of ¹⁵⁵Nd and ¹⁶³Gd from ²⁵²Cf spontaneous fission

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, three- and four-fold γγ-coin using the Gammasphere array with 101 Ge detectors, located at LBNL at the time. ¹⁵⁵Nd, ¹⁶³Gd; deduced high-spin levels, J, π, bands, Nilsson configurations. Comparison with theoretical calculations. Systematics of level energies and bands in ¹⁵³Nd, ¹⁵⁵Nd and ¹⁵⁵Sm.

doi: 10.1103/PhysRevC.102.044323
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Data from this article have been entered in the XUNDL database. For more information, click here.

2020MU04      Phys.Rev. C 101, 034610 (2020)

B.M.Musangu, A.H.Thibeault, T.H.Richards, E.H.Wang, J.H.Hamilton, C.J.Zachary, J.M.Eldridge, A.V.Ramayya, Y.X.Luo, J.O.Rasmussen, G.M.Ter-Akopian, Yu.Ts.Oganessian, S.J.Zhu

Anomalous neutron yields confirmed for Ba-Mo and newly observed for Ce-Zr from spontaneous fission of ²⁵²Cf

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, three- and four-fold γγ-coin using the Gammasphere array at LBNL; deduced fission yield matrices and neutron multiplicity yields of Ba(A=138-148)-Mo(A=100-110), Pd(A=110-118)-Te(A=130-138), Nd(A=148-156)-Sr(A=91-100), and Ce(A=144-152)-Zr(A=96-104) pairs of isotopes using up-to-date level schemes of relevant nuclei, and cross-checking of energies of the γ-transitions in multiple isotopes, possible hyperdeformation and octupole deformation at scission giving rise to high neutron multiplicities.

doi: 10.1103/PhysRevC.101.034610
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14634.

2020ZA04      Phys.Rev. C 101, 054312 (2020)

C.J.Zachary, N.T.Brewer, J.C.Batchelder, E.Wang, J.H.Hamilton, J.M.Eldridge, B.M.Musangu, A.V.Ramayya, C.J.Gross, K.P.Rykaczewski, R.Grzywacz, A.C.Dai, F.R.Xu, Y.X.Liu, Y.Sun, M.Madurga, D.Miller, D.W.Stracener, C.Jost, E.F.Zganjar, J.A.Winger, M.Karny, S.V.Paulauskas, S.H.Liu, M.Wolinska-Cichocka, S.W.Padgett, A.J.Mendez, K.Miernik, A.Fijalkowska, S.V.Ilyushkin

Identification of new transitions and levels in ¹⁶³Gd from β-decay studies

RADIOACTIVITY ¹⁶³Eu(β^-)[from ²³⁸U(p, F), E=50 MeV, pure ¹⁶³Eu beam using high-resolution isobar separator at HRIBF-ORNL]; measured Eγ, Iγ, Eβ^-, Iβ^-, γγ-, βγγ- and (x ray)γ-coin using the CARDS HPGe clover array for γ detection and plastic scintillators for β detection. ¹⁶³Gd; deduced levels, J, π, bands, configurations; calculated configuration-constrained potential-energy surface (PES) for ν1/2[521] configuration. Comparison with projected shell-model calculations.

doi: 10.1103/PhysRevC.101.054312
Citations: PlumX Metrics

2020ZA07      Phys.Rev. C 102, 044302 (2020)

C.J.Zachary, E.Wang, N.T.Brewer, J.C.Batchelder, J.H.Hamilton, J.M.Eldridge, B.M.Musangu, A.V.Ramayya, C.J.Gross, K.P.Rykaczewski, R.Grzywacz, A.C.Dai, F.R.Xu, M.Madurga, D.Miller, D.W.Stracener, C.Jost, E.F.Zganjar, J.A.Winger, M.Karny, S.V.Paulauskas, S.H.Liu, M.Wolinska-Cichocka, S.W.Padgett, A.J.Mendez, K.Miernik, A.Fijalkowska, S.V.Ilyushkin

New transitions and levels for ¹⁶³Tb obtained from β-decay studies

RADIOACTIVITY ¹⁶³Gd(β^-)[mass separated ¹⁶³Gd beam from fission at HRIBF-ORNL]; measured Eγ, Iγ, βγγ-, γγ- and γ(x ray)-coin using four Clover HPGe detectors and two plastic scintillators. ¹⁶³Dy; deduced levels, J, π, configurations. Comparison with configuration-constrained potential-energy surface (PES) calculations.

doi: 10.1103/PhysRevC.102.044302
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Data from this article have been entered in the XUNDL database. For more information, click here.

2020ZH03      Phys.Rev.Lett. 124, 032501 (2020)

S.J.Zhu, E.H.Wang, J.H.Hamilton, A.V.Ramayya, Y.X.Liu, N.T.Brewer, Y.X.Luo, J.O.Rasmussen, Z.G.Xiao, Y.Huang, G.M.Ter-Akopian, Ts.Oganessian

Coexistence of Reflection Asymmetric and Symmetric Shapes in ¹⁴⁴Ba

RADIOACTIVITY ²⁵²Cf(SF); measured fission products, Eγ, Iγ, γ-γ-γ-coin. ¹⁴⁴Ba; deduced γ-ray energies, J, π, high-spin states, quadrupole band structure.

doi: 10.1103/PhysRevLett.124.032501
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Data from this article have been entered in the XUNDL database. For more information, click here.

2018BH07      Phys.Rev. C 98, 044316 (2018)

S.Bhattacharyya, E.H.Wang, A.Navin, M.Rejmund, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, A.Lemasson, A.V.Afanasjev, S.Bhattacharya, J.Ranger, M.Caamano, E.Clement, O.Delaune, F.Farget, G.de France, B.Jacquot, Y.X.Luo, Yu.Ts.Oganessian, J.O.Rasmussen, G.M.Ter-Akopian, S.J.Zhu

Deformed band structures in neutron-rich ^152-158Pm isotopes

NUCLEAR REACTIONS ⁹Be(²³⁸U, F), E=6.2 MeV/nucleon; measured fission fragments, time of flight, Eγ, Iγ, γγ- and (fragment)γ-coin using the VAMOS++ magnetic spectrometer for fragment separation and the EXOGAM segmented Clover array for γ detection at GANIL. ^{152,153,154,155,156,157,158}Pm; deduced high-spin levels, J, π, bands, alignment and staggering plots. ¹⁵¹Pm; measured γ spectrum in coincidence with fission fragments. Systematics of band structures in ^{151,153,155,157}Pm. Comparison with previous experimental values and cranked Hartree-Bogoliubov calculations.

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γ(θ), high-fold γγ-coin using Gammasphere array with 101 HPGe detectors at LBNL. ^{152,153,154,155,156,157,158}Pm; deduced high-spin levels, bands.

doi: 10.1103/PhysRevC.98.044316
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Data from this article have been entered in the XUNDL database. For more information, click here.

2018EL01      Eur.Phys.J. A 54, 15 (2018)

J.M.Eldridge, B.Fenker, J.H.Hamilton, C.Goodin, C.J.Zachary, E.Wang, A.V.Ramayya, A.V.Daniel, G.M.Ter-Akopian, Yu.Ts.Oganessian, Y.X.Luo, J.O.Rasmussen, S.J.Zhu

E2/M1 mixing ratios in transitions from the gamma vibrational bands to the ground state rotational bands of ^{102, 104, 106, 108}Mo, ^{108, 110, 112}Ru, and ^{112, 114, 116}Pd

RADIOACTIVITY ²⁵²Cf(SF); measured fission fragments Eγ, Iγ(θ), γγ-coin using 101 HPGe GAMMASPHERE detectors; deduced 2⁺ excited states attenuation factors, g-factors. ^{102,104,106,108}Mo;^108,110,112Ru, ^114,116Pd; deduced rotational bands, vibrational bands of selected fission fragments, B(E2), B(M1) using γγγ and higher coin using angular correlations, g-factors of 2⁺ states of the gs rotational band; calculated γ vibrational bands, gs rotational bands of selected, B(E2), B(M1), mixing ratios E2/M1.

doi: 10.1140/epja/i2018-12426-5
Citations: PlumX Metrics

2018WA19      Int.J.Mod.Phys. E27, 1850051 (2018)

E.H.Wang, J.H.Hamilton, A.V.Ramayya, R.Han, C.J.Zachary, 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

New levels in spherical ⁹⁶Y

RADIOACTIVITY ²⁵²Cf(SF); measured decay products, Eγ, Iγ. ⁹⁶Y; deduced γ-ray energies, J, π. Comparison with NUSHELLX code calculations.

doi: 10.1142/S0218301318500519
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Data from this article have been entered in the XUNDL database. For more information, click here.

2017FI06      Phys.Rev.Lett. 119, 052503 (2017)

A.Fijalkowska, M.Karny, K.P.Rykaczewski, B.C.Rasco, R.Grzywacz, C.J.Gross, M.Wolinska-Cichocka, K.C.Goetz, D.W.Stracener, W.Bielewski, R.Goans, J.H.Hamilton, J.W.Johnson, C.Jost, M.Madurga, K.Miernik, D.Miller, S.W.Padgett, S.V.Paulauskas, A.V.Ramayya, E.F.Zganjar

Impact of Modular Total Absorption Spectrometer measurements of β decay of fission products on the decay heat and reactor ν(bar)_e flux calculation

RADIOACTIVITY ⁸⁶Br, ^89,90Kr, ^89,90,92Rb, ¹³⁹Xe, ¹⁴²Cs(β^-) [from ²³⁸U(p, X), E=40 MeV]; measured decay products, Eγ, Iγ, Eβ, Iβ; deduced a substantial increase in β feeding to high excited states in all daughter isotopes in comparison to earlier data, reduction of the reference reactor ν-bar flux.

doi: 10.1103/PhysRevLett.119.052503
Citations: PlumX Metrics

2017FR03      Int.J.Mod.Phys. E26, 1750030 (2017)

H.Fryman-Sinkhorn, E.H.Wang, C.J.Zachary, J.H.Hamilton, A.V.Ramayya, G.H.Bhat, J.A.Sheikh, R.N.Ali, A.A.Wani, A.C.Dai, W.Y.Liang, F.R.Xu, J.K.Hwang, N.T.Brewer, Y.X.Luo, J.O.Rasmussen, S.J.Zhu, G.M.Ter-Akopian, Yu.Ts.Oganessian

Possible very anharmonic one- and two-phonon γ-vibrational bands in ¹⁰³Mo

RADIOACTIVITY ²⁵²Cf(SF); measured decay products, Eγ, Iγ, γ-γ-coin. ¹⁰³Mo; deduced γ-ray energies and intensities, J, π, γ-vibrational bands. Comparison with potential energy surface calculations.

doi: 10.1142/S0218301317500306
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Data from this article have been entered in the XUNDL database. For more information, click here.

2017HU09      J.Phys.(London) G44, 095101 (2017)

Y.Huang, S.J.Zhu, J.H.Hamilton, Y.J.Chen, E.H.Wang, A.V.Ramayya, Z.G.Xiao, H.J.Li, Y.X.Luo, J.O.Rasmussen, G.M.Ter-Akopian, Y.T.Oganessian

Reinvestigation of s = ^±i octupole bands in neutron-rich ¹⁴¹Xe

RADIOACTIVITY ²⁵²Cf(SF); measured decay products, Eγ, Iγ. ¹⁴¹Xe; deduced high spin energy levels, J, π, multiplicity, B(E1)/B(E2). Comparison with shell model calculations, available data.

doi: 10.1088/1361-6471/aa8318
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Data from this article have been entered in the XUNDL database. For more information, click here.

2017MA54      Phys.Rev. C 96, 034319 (2017), Erratum Phys.Rev. C 102, 029902 (2020)

J.Marcellino, E.H.Wang, C.J.Zachary, J.H.Hamilton, A.V.Ramayya, G.H.Bhat, J.A.Sheikh, A.C.Dai, W.Y.Liang, F.R.Xu, J.K.Hwang, N.T.Brewer, Y.X.Luo, J.O.Rasmussen, S.J.Zhu, G.M.Ter-Akopian, Yu.Ts.Oganessian

One- and two-phonon γ-vibrational bands in neutron-rich ¹⁰⁷Mo

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array at LBNL, Berkeley. ¹⁰⁷Mo; deduced levels, J, π, rotational and quasiparticle bands, triaxial deformation, configurations; calculated deformation from potential energy surface (PES) plot. Comparison with projected shell model calculations, and with systematics of levels in ^{103,104,105,106,107,108}Mo.

doi: 10.1103/PhysRevC.96.034319
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Data from this article have been entered in the XUNDL database. For more information, click here.

2017RA10      Phys.Rev. C 95, 054328 (2017)

B.C.Rasco, K.P.Rykaczewski, A.Fijalkowska, M.Karny, M.Wolinska-Cichocka, R.K.Grzywacz, C.J.Gross, D.W.Stracener, E.F.Zganjar, J.C.Blackmon, N.T.Brewer, K.C.Goetz, J.W.Johnson, C.U.Jost, J.H.Hamilton, K.Miernik, M.Madurga, D.Miller, S.Padgett, S.V.Paulauskas, A.V.Ramayya, E.H.Spejewski

Complete β-decay pattern for the high-priority decay-heat isotopes ¹³⁷I and ¹³⁷Xe determined using total absorption spectroscopy

RADIOACTIVITY ¹³⁷I, ¹³⁷Xe(β^-)[from U(p, F), E=50 MeV]; ¹³⁷I(β^-n); measured Eγ, Iγ, total absorption gamma-ray spectra using Modular Total Absorption Spectrometer (MTAS) at ORNL; deduced beta-delayed neutron spectrum, beta-delayed neutron emission probability for ¹³⁷I decay, Iβ feedings, ratio of MTAS measured γ decay heat to calculated γ decay heat for thermal neutrons+²³⁵U. Comparison with the evaluated data in the ENSDF database at NNDC.

doi: 10.1103/PhysRevC.95.054328
Citations: PlumX Metrics

2017WA19      Phys.Rev. C 95, 064311 (2017); Erratum Phys.Rev. C 109, 019902 (2024)

E.H.Wang, J.H.Hamilton, A.V.Ramayya, Y.X.Liu, H.J.Li, A.C.Dai, W.Y.Liang, F.R.Xu, J.K.Hwang, S.H.Liu, N.T.Brewer, Y.X.Luo, J.O.Rasmussen, Y.Sun, S.J.Zhu, G.M.Ter-Akopian, Yu.Ts.Oganessian

Oblate deformation in neutron-rich ^{118, 119}Ag

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array of 101 Ge detectors at LBNL-Berkeley. ^118,119Ag; deduced high-spin levels, J, π, multipolarities, bands, configurations. Total Routhian surface and projected shell model calculation. Systematics of 7/2+ bands in ^115,117,119Ag. Systematics of energy levels and staggering in negative-parity bands in A=104-118, odd-odd Ag isotopes.

doi: 110.1103/PhysRevC.95.064311
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Data from this article have been entered in the XUNDL database. For more information, click here.

2017WA50      Eur.Phys.J. A 53, 234 (2017)

E.H.Wang, W.Lewis, C.J.Zachary, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, S.H.Liu, N.T.Brewer, Y.X.Luo, J.O.Rasmussen, S.J.Zhu, G.M.Ter-Akopian, Yu.Ts.Oganessian

New levels and reinvestigation of octupole correlations in ^{146, 147}La

RADIOACTIVITY ²⁵²Cf(SF); ^146,147La; measured fragments Eγ, Iγ, γγ-coin, triple and fourfold γ-coin using Gammasphere; deduced γ transitions, levels, J, π, T_1/2, 3⁺ bands, angular momentum vs energy in different bands, B(E1)/B(E2) ratio, electron dipole strength of selected states. Bands in La compared with those in ¹⁴³Cs.

doi: 10.1140/epja/i2017-12409-0
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2016AL10      Phys.Rev. C 93, 044325 (2016)

M.F.Alshudifat, R.Grzywacz, M.Madurga, C.J.Gross, K.P.Rykaczewski, J.C.Batchelder, C.Bingham, I.N.Borzov, N.T.Brewer, L.Cartegni, A.Fijalkowska, J.H.Hamilton, J.K.Hwang, S.V.Ilyushkin, C.Jost, M.Karny, A.Korgul, W.Krolas, S.H.Liu, C.Mazzocchi, A.J.Mendez, K.Miernik, D.Miller, S.W.Padgett, S.V.Paulauskas, A.V.Ramayya, D.W.Stracener, R.Surman, J.A.Winger, M.Wolinska-Cichocka, E.F.Zganjar

Reexamining Gamow-Teller decays near ⁷⁸Ni

RADIOACTIVITY ^82,83Zn, ^82,83Ga(β^-), (β^-n)[from ²³⁸U(p, F), E=50 MeV]; measured Eγ, Iγ, Eβ, βγ-, γγ-coin, half-lives of decay of ^82,83Zn, ⁸³Ga, β-delayed neutron branching ratio P_n for ⁸²Zn decay at HRIBF-ORNL facility. ^81,82,83Ga, ^81,82Ge; deduced levels, J, π, beta feedings, logft. Comparison of level spectra with shell-model calculations, and with previous experimental results. ^82,83Zn, ^82,83Ga(β^-); calculated B(GT) strengths using shell-model with NUSHELLX computer code.

doi: 10.1103/PhysRevC.93.044325
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Data from this article have been entered in the XUNDL database. For more information, click here.

2016BA41      Phys.Rev. C 94, 024317 (2016)

J.C.Batchelder, N.T.Brewer, C.J.Gross, R.Grzywacz, J.H.Hamilton, M.Karny, A.Fijalkowska, S.H.Liu, K.Miernik, S.W.Padgett, S.V.Paulauskas, K.P.Rykaczewski, A.V.Ramayya, D.W.Stracener, M.Wolinska-Cichocka

¹²⁴In levels populated in the β decay of ¹²⁴Cd

RADIOACTIVITY ¹²⁴Cd(β^-)[from U(p, F), E=50 MeV at Oak Ridge Isochronous Cyclotron facility]; measured Eγ, Iγ, γγ-coin at HRIBF-ORNL facility. ¹²⁴In; deduced levels, J, π, multipolarity, β feedings, configuration. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.94.024317
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2016HU10      Phys.Rev. C 93, 064321 (2016)

Y.Huang, S.J.Zhu, J.H.Hamilton, E.H.Wang, A.V.Ramayya, Z.G.Xiao, H.J.Li, Y.X.Luo, J.O.Rasmussen, G.M.Ter-Akopian, Yu.Ts.Oganessian

Proposed s =^±1 octupole bands in ¹⁴⁰Xe

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ) using Gammasphere array. ¹⁴⁰Xe; deduced high-spin levels, J, π, s=+1 and s=-1 parity-doublet octupole bands, multipolarities, multipole mixing ratios, B(E1)/B(E2) ratios, octupole correlations, moments of inertia plots. Level systematics of ¹⁴⁰Xe, ¹⁴³Ba and ¹⁴⁸Ce. ^{106,107,108,109,110}Ru; observed γ rays.

doi: 10.1103/PhysRevC.93.064321
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2016HU16      Int.J.Mod.Phys. E25, 1650064 (2016)

Y.Huang, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, E.H.Wang, Y.X.Liu, Y.Sun, J.K.Hwang, Z.G.Xiao, H.J.Li, Y.X.Luo, J.O.Rasmussen, G.M.Ter-Akopian, Yu.Ts.Oganessian

Reinvestigation of two-phonon γ-vibrational band in neutron-rich ¹¹⁴Pd

RADIOACTIVITY ²⁵²Cf(SF); measured decay products, Eγ.Iγ. ¹¹⁴Pd; deduced energy levels, level scheme, J, π, γ-bands. Comparison with theoretical calculations.

doi: 10.1142/S0218301316500646
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2016MI02      Phys.Rev. C 93, 014306 (2016)

A.J.Mitchell, C.J.Lister, E.A.McCutchan, M.Albers, A.D.Ayangeakaa, P.F.Bertone, M.P.Carpenter, C.J.Chiara, P.Chowdhury, J.A.Clark, P.Copp, H.M.David, A.Y.Deo, B.DiGiovine, N.D'Olympia, R.Dungan, R.D.Harding, J.Harker, S.S.Hota, R.V.F.Janssens, F.G.Kondev, S.H.Liu, A.V.Ramayya, J.Rissanen, G.Savard, D.Seweryniak, R.Shearman, A.A.Sonzogni, S.L.Tabor, W.B.Walters, E.Wang, S.Zhu

ψ-soft ¹⁴⁶Ba and the role of nonaxial shapes at N ≈ 90

RADIOACTIVITY ¹⁴⁶Cs(β^-)[from ²⁵²Cf SF and mass separation at CARIBU-ANL facility]; measured Eγ, Iγ, βγ-, βγγ-coin using SATURN detection system at ANL. ¹⁴⁶Ba; deduced levels, J, π, limits of β^- branching ratios. Level systematics in even-A N=90 isotones with Z=56-68, and those of g.s., β- and γ-bands in ¹⁴⁶Ba, ¹⁴⁸Ce, ¹⁵⁰Nd. Investigation of nuclear shape transitions. Comparison with interacting boson approximation (IBA) model predictions.

doi: 10.1103/PhysRevC.93.014306
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2015WA28      Phys.Rev. C 92, 034317 (2015); Erratum Phys.Rev. C 109, 029902 (2024)

E.H.Wang, A.Lemasson, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, J.M.Eldridge, A.Navin, M.Rejmund, S.Bhattacharyya, S.H.Liu, N.T.Brewer, Y.X.Luo, J.O.Rasmussen, H.L.Liu, H.Zhou, Y.X.Liu, H.J.Li, Y.Sun, F.R.Xu, S.J.Zhu, G.M.Ter-Akopian, Yu.Ts.Oganessian, M.Caamano, E.Clement, O.Delaune, F.Farget, G.de France, B.Jacquot

Identification of new transitions and mass assignments of levels in ^143-153Pr

NUCLEAR REACTIONS ⁹Be(²³⁸U, F), E=6.2 MeV/nucleon; measured Eγ, Iγ, (fission fragment)γ-, γγ-coin using VAMOS++ spectrometer and EXOGAM array at GANIL. ^{143,144,145,146,147,148,149,150,151,152,153}Pr; deduced levels, J, π, bands. Comparison with previous experimental data.

doi: 10.1103/PhysRevC.92.034317
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2014BA18      Phys.Rev. C 89, 054321 (2014)

J.C.Batchelder, N.T.Brewer, C.J.Gross, R.Grzywacz, J.H.Hamilton, M.Karny, A.Fijalkowska, S.H.Liu, K.Miernik, S.W.Padgett, S.V.Paulauskas, K.P.Rykaczewski, A.V.Ramayya, D.W.Stracener, M.Wolinska-Cichocka

Structure of low-lying states in ^{124, 126}Cd populated by β decay of ^{124, 126}Ag

RADIOACTIVITY ^{124,124m,126,126m}Ag(β^-)[from ²³⁸U(p, X), E=50 MeV]; measured Eγ, Iγ, γγ-, γ(ce)-coin, half-lives at LeRIBSS-HRIBF-ORNL facility. ^124,126Cd; deduced levels, isomers, J, π, β feedings, configurations. Systematics of level structures and B(E2) values in A=110-126 even-even Cd isotopes. Excited 0+ and possible multi-phonon states.

doi: 10.1103/PhysRevC.89.054321
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2014FI09      Acta Phys.Pol. B45, 545 (2014)

A.Fijalkowska, M.Karny, K.P.Rykaczewski, M.Wolinska-Cichocka, R.Grzywacz, C.J.Gross, J.W.Johnson, B.C.Rasco, E.F.Zganjar, D.W.Stracener, L.Cartegni, K.C.Goetz, R.Goans, C.Jost, M.Madurga, K.Miernik, D.Miller, S.W.Padgett, S.V.Paulauskas, M.Al-Shudifat, E.Spejewski, J.H.Hamilton, A.V.Ramayya

First Results from the Modular Total Absorption Spectrometer at the HRIBF

RADIOACTIVITY ⁸⁶Br(β^-); measured decay products, Eγ, Iγ; deduced γ-ray energies. Comparison with ENSDF database.

doi: 10.5506/APhysPolB.45.545
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2014FI11      Nucl.Data Sheets 120, 26 (2014)

A.Fijalkowska, M.Karny, K.P.Rykaczewski, M.Wolinska-Cichocka, R.Grzywacz, C.J.Gross, J.W.Johnson, B.C.Rasco, E.F.Zganjar, D.W.Stracener, C.Jost, K.C.Goetz, R.Goans, E.Spejewski, L.Cartegni, M.Madurga, K.Miernik, D.Miller, S.W.Padgett, S.V.Paulauskas, M.Al-Shudifat, J.H.Hamilton, A.V.Ramayya

First Results from the Modular Total Absorption Spectrometer at the HRIBF

RADIOACTIVITY ¹³⁹Xe, ⁸⁹Kr(β^-) [from ²³⁸U(p, X), E=40 MeV]; measured decay products, Eγ, Iγ, Eβ, Iβ, β-γ-coin.; deduced β-feeding intensity, level structure, average electromagnetic energy released per decay.

doi: 10.1016/j.nds.2014.06.132
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2014LI46      Phys.Rev. C 90, 047303 (2014)

H.J.Li, S.J.Zhu, J.H.Hamilton, E.H.Wang, A.V.Ramayya, Y.J.Chen, J.K.Hwang, J.Ranger, S.H.Liu, Z.G.Xiao, Y.Huang, Z.Zhang, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, G.M.Ter-Akopian, Yu.Ts.Oganessian, W.C.Ma

Reinvestigation of high spin states and proposed octupole correlations in ¹⁴⁷Ce

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, triple- and four-fold γγ-coin using Gammasphere detector array at LBNL facility. ¹⁴⁷Ce; deduced high-spin levels, bands, B(E1)/B(E2) ratios, octupole correlations. Comparison with reflection-asymmetric shell-model calculations. Systematics of octupole band structures in ¹⁴⁵Ba, ¹⁴⁷Ce, and ¹⁴⁹Nd.

doi: 10.1103/PhysRevC.90.047303
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2014LU07      Phys.Rev. C 89, 044326 (2014)

Y.X.Luo, J.O.Rasmussen, J.H.Hamilton, A.V.Ramayya, E.Wang, Y.X.Liu, C.F.Jiao, W.Y.Liang, F.R.Xu, Y.Sun, S.Frauendorf, J.K.Hwang, S.H.Liu, S.J.Zhu, N.T.Brewer, I.Y.Lee, G.M.Ter-Akopian, Yu.Oganessian, R.Donangelo, W.C.Ma

First observation of a rotational band and the role of the proton intruder orbital π 1/2⁺[431] in very neutron-rich odd-odd ¹⁰⁶Nb

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, 3- and 4-fold γγ-coin, coincidences with γ rays from complementary A=142-144 La isotopes , fission yield ratio using Gammasphere array at LBNL. ^104,106Nb; deduced high-spin levels, J, π, rotational bands, alignment and moments of inertia plots, configurations. Comparison with projected shell model calculations. Role of 1/2[431] proton intruder orbital, and shape evolution.

NUCLEAR STRUCTURE ^104,106Nb; calculated levels, J, π, potential energy surfaces (PES), configurations, alignments, moments of inertia. Projected shell model. Comparison with experimental data.

doi: 10.1103/PhysRevC.89.044326
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2014WA53      Phys.Rev. C 90, 067306 (2014)

E.H.Wang, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, S.H.Liu, N.T.Brewer, Y.X.Luo, J.O.Rasmussen, S.J.Zhu, G.M.Ter-Akopian, Yu.Ts.Oganessian

Identification of a possible proton two-quasiparticle band in ¹⁵⁸Sm

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array at LBNL facility. ¹⁵⁸Sm; deduced high-spin levels, J, π, bands, configuration, Comparison with projected shell model (PSM) calculations. Systematics of 2-quasiparticle bands in ^156,158Sm, ¹⁵⁶Nd.

doi: 10.1103/PhysRevC.90.067306
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2013HW01      J.Phys.(London) G40, 015106 (2013)

J.K.Hwang, J.H.Hamilton, A.V.Ramayya

Search for two-POV states, excited quintuplets and septuplets in ^88-92Sr and ^{94, 96}Zr

NUCLEAR STRUCTURE ^{87,88,89,90,91,92}Sr, ^94,96Zr; analyzed available data; deduced level energies, J, π according to published D CO ratios, E2 transition energy systematics, POV states.

doi: 10.1088/0954-3899/40/1/015106
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2013HW02      Eur.Phys.J. A 49, 125 (2013)

J.K.Hwang, J.H.Hamilton, A.V.Ramayya

One-phonon octupole vibrational states in ¹³⁶Xe, ¹³⁷Cs, ¹³⁸Ba, ¹⁴⁰Ce and ¹⁴²Nd with N = 82

NUCLEAR STRUCTURE ¹³⁶Xe, ¹³⁷Cs, ¹³⁸Ba, ¹⁴⁰Ce, ¹⁴²Nd; calculated zero-, one-, two-phonon high spin states E, γ transitions using weak coupling mode of collective octupole 3^- phonon; deduced J, π of specified levels using comparison to data.

doi: 10.1140/epja/i2013-13125-5
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2013HW03      Eur.Phys.J. A 49, 152 (2013)

J.K.Hwang, J.H.Hamilton, A.V.Ramayya

One-phonon octupole vibrational states in ²¹¹At, ²¹²Rn, ²¹³Fr and ²¹⁴Ra with N = 126

NUCLEAR STRUCTURE ²¹¹At, ²¹²Rn, ²¹³Fr, ²¹⁴Ra; calculated one-phonon octupole vibrational states, J, π, γ transitions, B(E3). B(E3) compared to data.

doi: 10.1140/epja/i2013-13152-2
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2013LI23      Phys.Rev. C 87, 057302 (2013)

S.H.Liu, J.H.Hamilton, A.V.Ramayya, S.J.Zhu, Y.Shi, F.R.Xu, 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

New high-spin level scheme of neutron-rich ¹¹²Rh

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array. ¹¹²Rh; deduced high-spin levels, J, π, bands, triaxiality. Total Routhian surface calculations. Systematics of yrare bands in ^112,114Rh.

doi: 10.1103/PhysRevC.87.057302
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2013LI52      Phys.Rev. C 88, 054311 (2013)

H.J.Li, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, Y.X.Liu, Y.Sun, Z.G.Xiao, E.H.Wang, J.M.Eldridge, Z.Zhang, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, G.M.Ter-Akopian, A.V.Daniel, Yu.Ts.Oganessian, W.C.Ma

Identification of multi-phonon γ-vibrational bands in odd-Z ¹⁰⁵Nb

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin, three and four-fold γγ-coin using Gammasphere array at LBNL facility. ¹⁰⁵Nb; deduced high-spin levels, J, π, multi-phonon γ-vibrational bands, alignment plots; calculated total Routhian surfaces (TRS) with cranked shell model. Comparison with triaxial projected shell model calculations. Systematics of level energies and bandhead energies for ground, one-phonon and two-phonon bands in ^103,105Nb, ^{104,105,106,108}Mo, ^107,109Tc, ^{108,110,112,114}Ru.

doi: 10.1103/PhysRevC.88.054311
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2013LU18      Nucl.Phys. A919, 67 (2013); Erratum Nucl.Phys. A983, 321 (2019)

Y.X.Luo, J.O.Rasmussen, J.H.Hamilton, A.V.Ramayya, S.Frauendorf, J.K.Hwang, N.J.Stone, S.J.Zhu, N.T.Brewer, E.Wang, I.Y.Lee, S.H.Liu, G.M.Ter Akopian, A.V.Daniel, Yu.Ts.Oganessian, M.A.Stoyer, R.Donangelo, W.C.Ma, J.D.Cole, Y.Shi, F.R.Xu

New insights into the nuclear structure in neutron-rich ^{112, 114, 115, 116, 117, 118}Pd

RADIOACTIVITY ²⁵²Cf(SF); measured fission fragments Eγ, Iγ(θ), γγ-coin using Compton-suppressed Ge detectors of Gammasphere array. ^{112,114,115,116,117,118}Pd deduced levels, J, π, γ transitions, rotational bands, γ bands, triaxial deformation, wobbling, band crossing, backbanding, shape evolution; calculated deformation, shape evolution, band crossing using TRS (total Ruthian surface).

doi: 10.1016/j.nuclphysa.2013.10.002
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2013MI13      Phys.Rev. C 88, 014309 (2013)

K.Miernik, K.P.Rykaczewski, R.Grzywacz, C.J.Gross, D.W.Stracener, J.C.Batchelder, N.T.Brewer, L.Cartegni, A.Fijalkowska, J.H.Hamilton, J.K.Hwang, S.V.Ilyushkin, C.Jost, M.Karny, A.Korgul, W.Krolas, S.H.Liu, M.Madurga, C.Mazzocchi, A.J.Mendez, D.Miller, S.W.Padgett, S.V.Paulauskas, A.V.Ramayya, R.Surman, J.A.Winger, M.Wolinska-Cichocka, E.F.Zganjar

β-decay study of neutron-rich bromine and krypton isotopes

RADIOACTIVITY ⁹³Br, ^93,94Kr(β^-), (β^-n)[from ²³⁸U(p, F), E=50 MeV]; measured Eβ, Eγ, Iγ, βγ-, γγ-coin, T_1/2, delayed neutron emission probability P(n) using LeRIBSS system at HRIBF facility. ^92,93Kr; deduced levels, J, π. ⁹²Rb, ⁹³Y(β^-); observed gamma rays. Comparison of half-lives and P(n) values with previous experimental studies, and with model predictions.

doi: 10.1103/PhysRevC.88.014309
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2013OG01      Phys.Rev. C 87, 014302 (2013)

Yu.Ts.Oganessian, F.Sh.Abdullin, S.N.Dmitriev, J.M.Gostic, J.H.Hamilton, R.A.Henderson, M.G.Itkis, K.J.Moody, A.N.Polyakov, A.V.Ramayya, J.B.Roberto, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.A.Stoyer, N.J.Stoyer, V.G.Subbotin, A.M.Sukhov, Yu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin

Investigation of the ²⁴³Am + ⁴⁸Ca reaction products previously observed in the experiments on elements 113, 115, and 117

NUCLEAR REACTIONS ²⁴³Am(⁴⁸Ca, xn)²⁸⁷Mc/²⁸⁸Mc/²⁸⁹Mc, E=239.8-253.8 MeV; measured evaporation residues (ER), α, and SF fragments, ER-α and ER-SF correlated events, σ at U400 cyclotron facility of FLNR, JINR. ²⁴⁹Bk(⁴⁸Ca, xn)²⁹³Ts/²⁹⁴Ts; ²³⁷Np(⁴⁸Ca, 3n)²⁸²Nh; analyzed data.

RADIOACTIVITY ^287,288,289Mc, ^283,284,285Nh, ^279,280Rg, ^275,276Mt, ^271,272Bh(α); ^267,268Db, ²⁸¹Rg(SF); measured T_1/2. ^293,297Ts, ²⁹⁰Mc, ^282,286Nh, ^278,282Rg, ^274,278Mt, ^270,274Bh(α); ^266,270Db(SF); analyzed and compared previous half-life data.

doi: 10.1103/PhysRevC.87.014302
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2013OG04      Phys.Rev. C 87, 054621 (2013)

Yu.Ts.Oganessian, F.Sh.Abdullin, C.Alexander, J.Binder, R.A.Boll, S.N.Dmitriev, J.Ezold, K.Felker, J.M.Gostic, R.K.Grzywacz, J.H.Hamilton, R.A.Henderson, M.G.Itkis, K.Miernik, D.Miller, K.J.Moody, A.N.Polyakov, A.V.Ramayya, J.B.Roberto, M.A.Ryabinin, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.V.Shumeiko, M.A.Stoyer, N.J.Stoyer, V.G.Subbotin, A.M.Sukhov, Yu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin

Experimental studies of the ²⁴⁹Bk+⁴⁸Ca reaction including decay properties and excitation function for isotopes of element 117, and discovery of the new isotope ²⁷⁷Mt

NUCLEAR REACTIONS ²⁴⁹Bk(⁴⁸Ca, 3n), (⁴⁸Ca, 4n), E=243.7, 255.7, 259.8 MeV; measured σ(E) for production of ^293,294Ts using DGFRS separator at FLNR, JINR facility. Comparison with theoretical calculations.

RADIOACTIVITY ^293,294Ts, ^289,290Mc, ^285,286Nh, ^281,282Rg, ²⁷⁸Mt, ²⁷⁴Bh(α)[from α decay chains of ²⁹³Ts and ²⁹⁴Ts formed in ²⁴⁹Bk(⁴⁸Ca, 3n), (⁴⁸Ca, 4n), E=243.7, 255.7, 259.8 MeV]; measured Eα, Iα, half-lives. ²⁷⁰Db, ²⁷⁷Mt, ²⁸¹Rg(SF); measured decay energy, half-lives. ²⁸¹Rg(α), (SF); measured α/SF branching ratio. ²⁷⁷Mt; identified new isotope. Systematics of Q(α), SF- and α-decay half-lives for isotopes in Z=104-117, N=150-177 regions.

doi: 10.1103/PhysRevC.87.054621
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2012BA62      J.Phys.:Conf.Ser. 387, 012005 (2012)

J.C.Batchelder, N.T.Brewer, C.J.Gross, R.Grzywacz, J.H.Hamilton, M.Karny, A.Kuzniak, M.F.Madurga, A.J.Mendez, S.H.Liu, K.Miernik, D.Miller, S.W.Padgett, S.V.Paulauskas, K.P.Rykaczewski, A.V.Ramayya, D.W.Stracener, M.Wolinska-Cichocka, E.F.Zganjar

Systematics of Low Energy Collective States in neutron-rich Cd Isotopes

NUCLEAR REACTIONS ²³⁸U(p, F), E=40 MeV. ^120,124,126Ag measured β-decay, Eγ, Iγ, γγ-coin. ^120,124,126Cd deduced levels, J, π, γ transitions, significant mixing with intruder states, deviations from U(5) dynamical symmetry.

doi: 10.1088/1742-6596/387/1/012005
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2012HW02      Int.J.Mod.Phys. E21, 1250020 (2012)

J.K.Hwang, J.H.Hamilton, A.V.Ramayya

N = 50 Shell gap evolution and particle-hole excitations in ⁸²Ge, ⁸⁴Se and ⁸⁶Kr

NUCLEAR STRUCTURE ⁸²Ge, ⁸⁴Se, ⁸⁶Kr; analyzed available data; deduced J, π, level energies. Nuclear shell model, comparison with experimental data.

doi: 10.1142/S0218301312500206
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2012HW05      Int.J.Mod.Phys. E21, 1250080 (2012)

J.K.Hwang, J.H.Hamilton, A.V.Ramayya, N.T.Brewer, E.H.Wang, Y.X.Luo, S.J.Zhu

Search for two-phonon octupole vibrational bands in ^{88, 89, 92, 93, 94, 96}Sr and ^{95, 96, 97, 98}Zr

RADIOACTIVITY ²⁵²Cf(SF); measured decay products, Eγ, Iγ. ^{88,89,92,94,96}Sr, ^95,96,97,98Zr; deduced level properties, energies, J, π, high-spin states, phonon octupole vibrational bands. Comparison with available data.

doi: 10.1142/S0218301312500802
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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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2012LU01      Nucl.Phys. A874, 32 (2012)

Y.X.Luo, J.O.Rasmussen, C.S.Nelson, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, S.H.Liu, C.Goodin, N.J.Stone, S.J.Zhu, N.T.Brewer, Ke Li, I.Y.Lee, G.M.Ter-Akopian, A.V.Daniel, M.A.Stoyer, R.Donangelo, W.C.Ma, J.D.Cole

New high-spin level schemes and excitation modes of ^{117, 118, 119, 120, 122}Cd

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array. ^{117,118,119,120,122}Cd deduced levels, J, π, quasi-rotational bands, configurations, B(E1), B(E2), angular correlations of γ in cascade; calculated yrast bands, B(E1), B(E2), deformation, triaxiality using various models and total Routhian surface, deformations, triaxiality.

doi: 10.1016/j.nuclphysa.2011.11.001
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2012LU06      Rom.J.Phys. 57, 309 (2012)

Y.X.Luo, S.H.Liu, J.H.Hamilton, A.V.Ramayya, J.O.Rasmussen, J.K.Hwang, N.T.Brewer, S.J.Zhu

Nuclear Structures of the Neutron-Rich Nuclei Around A=120

RADIOACTIVITY ²⁵²Cf(SF); measured decay products, Eγ, Iγ, γ-γ-coin. ^118,120,122Cd, ^114,115Rh; deduced energy levels, J, π, triaxial deformations.

2012MA37      Phys.Rev.Lett. 109, 112501 (2012)

M.Madurga, R.Surman, I.N.Borzov, R.Grzywacz, K.P.Rykaczewski, C.J.Gross, D.Miller, D.W.Stracener, J.C.Batchelder, N.T.Brewer, L.Cartegni, J.H.Hamilton, J.K.Hwang, S.H.Liu, S.V.Ilyushkin, C.Jost, M.Karny, A.Korgul, W.Krolas, A.Kuzniak, C.Mazzocchi, A.J.Mendez, K.Miernik, W.Padgett, S.V.Paulauskas, A.V.Ramayya, J.A.Winger, M.Wolinska-Cichocka, E.F.Zganjar

New Half-lives of r-process Zn and Ga Isotopes Measured with Electromagnetic Separation

RADIOACTIVITY ^82,83Zn, ⁸⁵Ga(β^-); measured decay products, Eγ, Iγ, Eβ, Iβ; deduced T_1/2. Comparison with FRDM, QRPA, density functional calculations.

doi: 10.1103/PhysRevLett.109.112501
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2012OG02      Phys.Rev.Lett. 108, 022502 (2012)

Yu.Ts.Oganessian, F.Sh.Abdullin, S.N.Dmitriev, J.M.Gostic, J.H.Hamilton, R.A.Henderson, M.G.Itkis, K.J.Moody, A.N.Polyakov, A.V.Ramayya, J.B.Roberto, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.A.Stoyer, V.G.Subbotin, A.M.Sukhov, Yu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin

New Insights into the ²⁴³Am+⁴⁸Ca Reaction Products Previously Observed in the Experiments on Elements 113, 115, and 117

NUCLEAR REACTIONS ²⁴³Am(⁴⁸Ca, 3n)²⁸⁸Mc, E=240 MeV; ²⁴³Am, ²⁴⁹Bk(⁴⁸Ca, X)²⁸⁹Mc, E not given; measured reaction products. ²⁹¹Mc, ²⁹¹Mc, ²⁹⁷Ts; deduced σ. Comparison with other data.

RADIOACTIVITY ²⁸⁸Mc, ²⁸⁴Nh, ²⁸⁰Rg, ²⁷⁶Mt, ²⁷²Bh(α), ²⁶⁸Db(SF); ²⁸⁹Mc, ²⁸⁵Nh, ²⁸¹Rg(α); ²⁹³Ts, ²⁸⁹Mc, ²⁸⁵Nh, ²⁸¹Rg(α); measured decay products, Eα, Iα; deduced decay chains, strong support for the elements of 113 and 115.

doi: 10.1103/PhysRevLett.108.022502
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2012OG06      Phys.Rev.Lett. 109, 162501 (2012)

Yu.Ts.Oganessian, F.Sh.Abdullin, C.Alexander, J.Binder, R.A.Boll, S.N.Dmitriev, J.Ezold, K.Felker, J.M.Gostic, R.K.Grzywacz, J.H.Hamilton, R.A.Henderson, M.G.Itkis, K.Miernik, D.Miller, K.J.Moody, A.N.Polyakov, A.V.Ramayya, J.B.Roberto, M.A.Ryabinin, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.V.Shumeiko, M.A.Stoyer, N.J.Stoyer, V.G.Subbotin, A.M.Sukhov, Yu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin

Production and Decay of the Heaviest Nuclei ^{293, 294}117 and ²⁹⁴118

NUCLEAR REACTIONS ²⁴⁹Bk(⁴⁸Ca, X)²⁹³Ts/²⁹⁴Ts, E=247, 252 MeV; ²⁴⁹Cf(⁴⁸Ca, 3n)²⁹⁴Og, E=245, 251 MeV; measured reaction products, Eα, Iα; deduced average σ, T_1/2. Comparison with available data.

RADIOACTIVITY ²⁹⁴Og, ^293,294Ts, ²⁹⁰Lv, ^289,290Mc(α), ²⁸⁶Fl(α), (SF), ^285,286Nh(α), ²⁸²Cn(SF), ²⁸¹Rg(SF), ²⁸²Rg(α), ²⁷⁸Mt, ²⁷⁴Bh(α), ²⁷⁰Db(SF); measured decay products, Eα, Iα; deduced discovery z=117 element, T_1/2, decay branch, Q-values. Comparison with available data.

doi: 10.1103/PhysRevLett.109.162501
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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 ^{144,146,148,150}Ce.

doi: 10.1103/PhysRevC.85.014330
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2011HA63      J.Phys.:Conf.Ser. 312, 082026 (2011)

J.H.Hamilton, Yu.Ts.Oganessian, F.Sh.Abdullin, P.D.Bailey, D.Benker, M.E.Bennett, S.N.Dmitriev, J.Ezold, R.A.Henderson, M.G.Itkis, Yu.V.Lobanov, A.N.Mezentsev, K.J.Moody, S.L.Nelson, A.N.Polyakov, C.E.Porter, A.V.Ramayya, F.Riley, J.B.Roberto, M.A.Ryabinin, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.A.Stoyer, V.G.Subbotin, R.Sudowe, A.M.Sukhov, Tu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin, P.A.Wilk

Synthesis of the New Element with Z=117

NUCLEAR REACTIONS ²⁴⁹Bk(⁴⁸Ca, 4n)²⁹³Ts, E=252 MeV;²⁴⁹Bk(⁴⁸Ca, 3n)²⁹⁴Ts, E=252 MeV; measured Eα, α-decay chains, ER, fission fragments; deduced new element 117, T_1/2.

doi: 10.1088/1742-6596/312/4/082026
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2011HW03      Phys.Rev. C 84, 024305 (2011)

J.K.Hwang, J.H.Hamilton, A.V.Ramayya, N.T.Brewer, Y.X.Luo, J.O.Rasmussen, S.J.Zhu

Possible excited deformed rotational bands in ⁸²Ge

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, (x ray)γ-, γγ-coin using Gammasphere array. ⁸²Ge; deduced levels, J, π, bands, quadrupole deformation, configurations and shape coexistence.

doi: 10.1103/PhysRevC.84.024305
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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 ^{107,109,111,113,115}Rh nuclei.

doi: 10.1103/PhysRevC.84.014304
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2011LI34      Int.J.Mod.Phys. E20, 1825 (2011)

K.Li, H.Hamilton, A.V.Ramayya, S.H.Liu, X.Q.Zhang, N.T.Brewer, J.K.Hwang, C.Goodin, S.J.Zhu, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, S.C.Wu, R.Donangelo, A.V.Daniel, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.Unzhakova, J.D.Cole, W.C.Ma, M.A.Stoyer

Identification of high-spin states in neutron-rich ^{89, 90, 92}Kr and ⁸⁶Se

RADIOACTIVITY ²⁵²Cf(SF); measured decay products, Eγ, Iγ, γ-γ-γ-coin. ^88,90,92Kr, ⁸⁶Se; deduced level schemes, energies, J, π. Comparison with nuclear systematics and angular correlation measurements.

doi: 10.1142/S0218301311019635
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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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2011OG04      Phys.Rev. C 83, 054315 (2011)

Yu.Ts.Oganessian, F.Sh.Abdullin, P.D.Bailey, D.E.Benker, M.E.Bennett, S.N.Dmitriev, J.G.Ezold, J.H.Hamilton, R.A.Henderson, M.G.Itkis, Yu.V.Lobanov, A.N.Mezentsev, K.J.Moody, S.L.Nelson, A.N.Polyakov, C.E.Porter, A.V.Ramayya, F.D.Riley, J.B.Roberto, M.A.Ryabinin, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.A.Stoyer, V.G.Subbotin, R.Sudowe, A.M.Sukhov, R.Taylor, Yu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin, P.A.Wilk

Eleven new heaviest isotopes of elements Z = 105 to Z = 117 identified among the products of ²⁴⁹Bk+⁴⁸Ca reactions

RADIOACTIVITY ^293,294Ts(α)[from ²⁴⁹Bk(⁴⁸Ca, xn), E=252 MeV]; ²⁷⁴Bh, ²⁷⁸Mt, ²⁸²Rg, ²⁸⁶Nh, ²⁹⁰Mc(α) [from α decay chain of ²⁹⁴Ts]; ²⁸¹Rg, ²⁸⁵Nh, ²⁸⁹Mc(α)[from α decay chain of ²⁹³Ts]; ²⁷⁰Db(SF), (α), (EC)[from α decay of ²⁷⁴Bh]; ²⁸¹Rg(SF)[from α decay of ²⁸⁵Nh]; measured Eα, half-lives and β decay energies of residues; deduced Q(α). Systematics of α decay half-lives, Q(α) values and β⁺, EC half-lives of Z=106-118, N=150-175, A=260-295 isotopes.

NUCLEAR REACTIONS ²⁴⁹Bk(⁴⁸Ca, xn)²⁹³Ts/²⁹⁴Ts, E=252 MeV; measured production cross sections.

doi: 10.1103/PhysRevC.83.054315
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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 ^{108,110,112,114}Ru 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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2010HA16      Nucl.Phys. A834, 28c (2010)

J.H.Hamilton, S.J.Zhu, Y.X.Luo, A.V.Ramayya, S.Frauendorf, J.O.Rasmussen, J.K.Hwang, S.H.Liu, G.M.Ter-Akopian, A.V.Daniel, Y.Oganessian

Super deformation to maximum triaxiality in A=100-112; superdeformation, chiral bands and wobbling motion

RADIOACTIVITY ¹¹²Ru(IT) [from ²⁵²Cf(SF)]; measured Eγ, Iγ, γγ-coin; deduced wobbling bands. Comparison with systematics in adjacent nuclei.

doi: 10.1016/j.nuclphysa.2009.12.010
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2010HW03      Phys.Rev. C 82, 034308 (2010)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, S.H.Liu, N.T.Brewer, Y.X.Luo, J.O.Rasmussen, S.J.Zhu, R.Donangelo

High spin states in ^{151, 153}Pr, ¹⁵⁷Sm, and ⁹³Kr

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-, (x ray)-γ coin, half-lives by γ(t) using Gammasphere array. ⁹³Kr, ^151,153Pr, ¹⁵⁷Sm; deduced levels, J, π, bands, configurations, conversion coefficients, B(E1)/B(E2) ratios. ^96,97,98,99Y, ^149,150Pr; measured Eγ.

doi: 10.1103/PhysRevC.82.034308
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2010LI03      Phys.Rev. C 81, 014316 (2010)

S.H.Liu, J.H.Hamilton, A.V.Ramayya, A.Covello, A.Gargano, N.Itaco, N.J.Stone, A.V.Daniel, J.K.Hwang, Y.X.Luo, J.O.Rasmussen, G.M.Ter-Akopian, S.J.Zhu, W.C.Ma

g-factor and spin-parity assignments of excited states in the N=83 isotones ¹³⁵Te, ¹³⁶I, ¹³⁷Xe, and ¹³⁸Cs

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ) using Gammasphere array. ¹³⁵Te, ¹³⁶I, ¹³⁷Xe, ¹³⁸Cs; deduced levels, J, π. Comparison with shell model calculations.

NUCLEAR MOMENTS ¹³⁷Xe; measured g factor of a 15/2- state using integral perturbed angular correlation (IPAC) technique.

doi: 10.1103/PhysRevC.81.014316
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2010LI10      Phys.Rev. C 81, 037302 (2010)

S.H.Liu, J.H.Hamilton, A.V.Ramayya, Y.X.Luo, J.O.Rasmussen, J.K.Hwang, A.V.Daniel, G.M.Ter-Akopian, S.J.Zhu, W.C.Ma

Nuclear structure of the odd-odd N=85 neutron-rich nucleus ¹⁴⁰Cs

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ) using Gammasphere array. ¹⁴⁰Cs; deduced levels, J, π, configurations. ^{107,108,109,110}Tc; measured Eγ. Comparison with level structure of ¹³⁸I and with systematics of N=85 isotones of ¹³⁷Te, ¹³⁸I, ¹³⁹Xe, ¹⁴⁰Cs, ¹⁴¹Ba, ¹⁴⁵Nd, ¹⁴⁶Pm, ¹⁴⁷Sm, ¹⁴⁸Eu and ¹⁴⁹Gd.

doi: 10.1103/PhysRevC.81.037302
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2010LI14      Phys.Rev. C 81, 057304 (2010)

S.H.Liu, J.H.Hamilton, A.V.Ramayya, Y.X.Luo, J.O.Rasmussen, J.K.Hwang, S.J.Zhu, W.C.Ma, A.V.Daniel, G.M.Ter-Akopian

Evidence for octupole excitations in the odd-odd neutron-rich nucleus ¹⁴²Cs

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ). ¹⁴²Cs; deduced levels, J, π, multipolarity, bands, B(E1), B(E2), electric dipole moments. ^106,107Tc; measured Eγ. Systematics of electric dipole moments for Xe (N=85-88), Cs (N=86-88), Ba (N=85-90), La (N=88, 90), Ce (N=86, 88, 90), Nd (N=86, 88, 90), Sm( N=86, 88).

doi: 10.1103/PhysRevC.81.057304
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2010LI24      Nucl.Phys. A834, 78c (2010)

S.H.Liu, J.H.Hamilton, A.V.Ramayya, A.Covello, A.Gargano, N.Itaco, Y.X.Luo, J.O.Rasmussen, J.K.Hwang, A.V.Daniel, G.M.Ter-Akopian, S.J.Zhu, W.C.Ma

High spin structure of the neutron-rich ^{139, 142}Cs nuclei

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ(θ), γγ-coin. ^139,142Cs; deduced high-spin states, levels, J, π, bands, ICC, δ. ¹³⁹Cs calculated levels, J, π, δ using shell model.

doi: 10.1016/j.nuclphysa.2010.01.023
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2010LU02      Nucl.Phys. A838, 1 (2010)

Y.X.Luo, J.O.Rasmussen, J.H.Hamilton, A.V.Ramayya, S.H.Liu, E.F.Jones, P.M.Gore, C.Goodin, N.J.Stone, S.J.Zhu, J.K.Hwang, Ke Li, H.L.Crowell, I.Y.Lee, G.M.Ter-Akopian, A.V.Daniel, M.A.Stoyer, R.Donangelo, W.C.Ma, J.D.Cole

Octupole excitations in ^{141, 144}Cs and the pronounced decrease of dipole moments with neutron number in odd-Z neutron-rich ^{141, 143, 144}Cs

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ) using Gammasphere. ^141,144Cs; deduced levels, J, p, conversion coefficients, multipolarities, bands, parity doublets, simplex structure, B(E1)/B(E2), dipole moment. Comparison with level structure of ¹⁴³Cs and with systematics of adjacent N=85-92 nuclei. ^{105,106,107,108}Tc; measured Eγ.

doi: 10.1016/j.nuclphysa.2010.03.003
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2010OG01      Phys.Rev.Lett. 104, 142502 (2010)

Yu.Ts.Oganessian, F.Sh.Abdullin, P.D.Bailey, D.E.Benker, M.E.Bennett, S.N.Dmitriev, J.G.Ezold, J.H.Hamilton, R.A.Henderson, M.G.Itkis, Yu.V.Lobanov, A.N.Mezentsev, K.J.Moody, S.L.Nelson, A.N.Polyakov, C.E.Porter, A.V.Ramayya, F.D.Riley, J.B.Roberto, M.A.Ryabinin, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.A.Stoyer, V.G.Subbotin, R.Sudowe, A.M.Sukhov, Yu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin, P.A.Wilk

Synthesis of a New Element with Atomic Number Z = 117

NUCLEAR REACTIONS ²⁴⁹Bk(⁴⁸Ca, 4n), E=252 MeV; ²⁴⁹Bk(⁴⁸Ca, 3n) , E=247 MeV;measured Eα, Iα, α-α correlations. ^293,294Ts; deduced σ, decay chains, T_1/2.

RADIOACTIVITY ^293,294Ts, ^289,290Mc, ^285,286Nh, ²⁸²Rg, ²⁷⁸Mt, ²⁷⁴Bh(α); measured Eα, Iα, and half-lives. ²⁷⁰Db, ²⁸¹Rg(SF); measured TKE, and T_1/2.

doi: 10.1103/PhysRevLett.104.142502
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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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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 T_1/2, band on isomeric state; calculated levels, J, π using projected shell model.

doi: 10.1140/epja/i2010-11001-6
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2009BA52      Phys.Rev. C 80, 054318 (2009)

J.C.Batchelder, J.L.Wood, P.E.Garrett, K.L.Green, K.P.Rykaczewski, J.-C.Bilheux, C.R.Bingham, H.K.Carter, D.Fong, R.Grzywacz, J.H.Hamilton, D.J.Hartley, J.K.Hwang, W.Krolas, W.D.Kulp, Y.Larochelle, A.Piechaczek, A.V.Ramayya, E.H.Spejewski, D.W.Stracener, M.N.Tantawy, J.A.Winger, E.F.Zganjar

Collective and noncollective states in ¹¹⁶Cd studied via the β decays of ¹¹⁶Ag^{m1, m2, gs}

RADIOACTIVITY ^116,116mAg(β^-) [from ²³⁸U(p, X), E not given]; measured Eγ, Iγ, γγ-coin, ce, and half-lives using HRIBF facility. ¹¹⁶Ag, ¹¹⁶Cd; deduced levels, J, π, conversion coefficients, multipolarities, logft, and BE2 rates. Comparisons with IBM-2 calculations, and with low-energy 0+ and 2+ level systematics of ^{110,112,114,116,118,120}Cd.

doi: 10.1103/PhysRevC.80.054318
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2009DI12      Chin.Phys.C 33, Supplement 1, 154 (2009)

H.-B.Ding, S.-J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, K.Li, S.H.Liu, Y.X.Luo, J.O.Rasmussen, C.T.Goodin, I.Y.Lee, J.-G.Wang, X.-L.Che, L.Gu

Extended collective bands in neutron-rich ¹⁰⁹Ru

RADIOACTIVITY ²⁵²Cf(SF); ¹⁰⁹Ru; measured Eγ, Iγ, γ-γ-coin.; deduced high-spin states, level scheme, ground state and negative and positive parity bands.

doi: 10.1088/1674-1137/33/S1/049
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2009GO09      Phys.Rev. C 79, 034316 (2009)

C.Goodin, J.R.Stone, N.J.Stone, A.V.Ramayya, A.V.Daniel, J.H.Hamilton, K.Li, J.K.Hwang, G.M.Ter-Akopian, J.O.Rasmussen

g factors of first 2⁺ states of neutron-rich Xe, Ba, and Ce isotopes

NUCLEAR MOMENTS ^140,142Xe, ¹⁴⁶Ba, ^146,148Ce; measured g factors of first 2+ states by integral perturbed angular correlation (IPAC) method. ^{130,132,134,136,138,140,142}Xe, ^{130,132,134,136,138,140,142,144,146}Ba, ^{140,142,146,148}Ce, ^148,150Nd, ^152,154Sm, ^{154,156,158,160}Gd, ^160,162,164Dy; systematics of experimental and theoretical g factors and ratio of proton to neutron holes outside the nearest closed shell. Comparison with interacting boson model-2 and rotation-vibration model calculations. ¹⁴⁶Ba, ^146,148Ce; deduced ratio of neutron to proton deformation.

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, (particle)γ-, γγ-coin, attenuated γγ(θ). ^136,140,142Xe, ^142,146Ba, ^146,148Ce; deduced levels, J, g factors.

doi: 10.1103/PhysRevC.79.034316
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2009GO18      Phys.Rev. C 80, 014318 (2009)

C.Goodin, A.V.Ramayya, J.H.Hamilton, N.J.Stone, A.V.Daniel, K.Li, S.H.Liu, J.K.Hwang, Y.X.Luo, J.O.Rasmussen, S.J.Zhu

Single particle states in neutron-rich ¹⁰¹Zr, ^{103, 105, 107}Mo, and ^{109, 111}Ru

RADIOACTIVITY ²⁵²Cf(SF); measured γγ(θ). ¹⁰¹Zr, ^103,105,107Mo, ^109,111Ru; deduced levels, J, π, mixing ratios. Comparison of mixing ratios with predictions of the particle-axial-rotor model for various single-particle states.

doi: 10.1103/PhysRevC.80.014318
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2009GU11      Phys.Rev. C 79, 054317 (2009)

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, X.L.Che, H.B.Ding, K.Li, Q.Xu, Y.Y.Yang, W.C.Ma

Collective band structures in neutron-rich ^{106, 107}Tc

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin. ^106,107Tc; deduced levels, J, π, bands, configurations, moments of inertia. ^104,105Mo, ^105,106Tc; systematics of alignments and moments of inertia.

doi: 10.1103/PhysRevC.79.054317
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2009GU20      Chin.Phys.Lett. 26, 092502 (2009)

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, H.-B.Ding, K.Li, Q.Xu, Y.-Y.Yang

Reinvestigation of Collective Bands in ¹⁰⁷Tc

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin.; ¹⁰⁷Tc; deduced levels, J, π, high-spin states, bands. Comparison with g-factor calculations.

doi: 10.1088/0256-307X/26/9/092502
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2009GU32      Chin.Phys.C 33, Supplement 1, 182 (2009)

L.Gu, S.-J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, Y.X.Luo, J.O.Rasmussen, K.Li, I.Y.Lee, Q.Xu, X.-L.Che, J.-G.Wang, H.-B.Ding, Y.-Y.Yang

High spin states in neutron-rich ¹⁰⁶Tc nucleus

RADIOACTIVITY ²⁵²Cf(SF); ¹⁰⁶Tc; measured Eγ, Iγ, γ-γ-coin.; deduced high-spin states, level scheme, J, π, collective bands. Total Routhian surface (TRS) calculations.

doi: 10.1088/1674-1137/33/S1/058
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2009HA15      Acta Phys.Pol. B40, 523 (2009)

J.H.Hamilton, Y.X.Luo, S.J.Zhu, J.O.Rasmussen, A.V.Ramayya, C.Goodin, K.Li, J.K.Hwang, S.Liu, D.Almehed, S.Frauendorf, V.Dimitrov, Jing-ye Zhang, X.L.Che, Z.Jang, I.Stefanescu, A.Gelberg, G.M.Ter-Akopian, A.V.Daniel, I.Y.Lee, H.-B.Ding, R.Q.Xu, J.-G.Wang, Q.Xu, M.A.Stoyer, R.Donangelo, N.J.Stone

New Band Structures in Neutron-Rich Mo and Ru Isotopes

2009HW03      Phys.Rev. C 80, 037304 (2009)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, S.H.Liu, K.Li, H.L.Crowell, C.Goodin, Y.X.Luo, J.O.Rasmussen, S.J.Zhu

High-spin states in ^{91, 92, 93}Rb and ^{155, 156}Pm

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array. ^91,92,93Rb, ^155,156Pm; deduced levels, J, π, bands. Comparison with level systematics of ⁸⁹Rb, ⁹⁰Kr and ⁹²Kr.

doi: 10.1103/PhysRevC.80.037304
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2009LI25      Phys.Rev. C 79, 067303 (2009)

S.H.Liu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, A.V.Daniel, G.M.Ter-Akopian, Y.X.Luo, J.O.Rasmussen, S.J.Zhu, W.C.Ma

Identification of high spin states in ¹³⁴I from ²⁵²Cf fission

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ). ¹³⁴I; deduced levels, J, π, yrast states. ^111,112,113Rh; measured Eγ, γγ-coin. Discussed systematics of yrast levels in Iodine nuclides.

doi: 10.1103/PhysRevC.79.067303
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2009LI42      Phys.Rev. C 80, 044314 (2009)

S.H.Liu, J.H.Hamilton, A.V.Ramayya, A.Covello, A.Gargano, N.Itaco, Y.X.Luo, J.O.Rasmussen, J.K.Hwang, A.V.Daniel, G.M.Ter-Akopian, S.J.Zhu, W.C.Ma

High spin structure of the neutron-rich nuclei ¹³⁷I and ¹³⁹Cs

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin, and γγ(θ) using Gammasphere array. ¹³⁷I, ¹³⁹Cs; deduced levels, J, π, bands, multipolarities and mixing ratios. ^108,109,110Tc, ^111,113Rh; measured Eγ, γγ-coin. Comparison with shell-model calculations. A=133-141(odd), Z=55; N=84, Sb, I, Cs, La; A=132-140(even), Z=52, 54, 56; systematics of low-lying states.

doi: 10.1103/PhysRevC.80.044314
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2009LU01      Phys.Lett. B 670, 307 (2009); Erratum Phys.Lett. B 691, 285 (2010)

Y.X.Luo, S.J.Zhu, J.H.Hamilton, J.O.Rasmussen, A.V.Ramayya, C.Goodin, K.Li, J.K.Hwang, D.Almehed, S.Frauendorf, V.Dimitrov, Jing-ye Zhang, X.L.Che, Z.Jang, I.Stefanescu, A.Gelberg, G.M.Ter-Akopian, A.V.Daniel, M.A.Stoyer, R.Donangelo, J.D.Cole, N.J.Stone

Evolution of chirality from γ soft ¹⁰⁸Ru to triaxial ^{110, 112}Ru

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array. ^108,110,112Ru; deduced levels, J, π, rotational bands, B(E2)/B(M1). Tilted axis cranking and RPA calculations.

doi: 10.1016/j.physletb.2008.10.067
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2009LU04      Nucl.Phys. A818, 121 (2009)

Y.X.Luo, J.H.Hamilton, J.O.Rasmussen, A.V.Ramayya, C.Goodin, S.J.Zhu, J.K.Hwang, K.Li, D.Fong, I.Stefanescu, I.Y.Lee, G.M.Ter-Akopian, A.V.Daniel, M.A.Stoyer, R.Donangelo, W.C.Ma, J.D.Cole

New level schemes and octupole correlations of light neutron-rich lanthanum isotopes ^{143, 144}La

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin and fission yield ratios of ^103,104,105Nb, ^143,144La using Gammasphere. ^143,144La deduced levels, J, π, band configurations, branching ratios, B(E1)/B(E2) ratios. Cranked-shell model calculations.

doi: 10.1016/j.nuclphysa.2008.12.004
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2009LU11      Nucl.Phys. A825, 1 (2009)

Y.X.Luo, J.O.Rasmussen, J.H.Hamilton, A.V.Ramayya, C.Goodin, S.J.Zhu, J.K.Hwang, K.Li, D.Fong, I.Stefanescu, I.Y.Lee, G.M.Ter-Akopian, A.V.Daniel, M.A.Stoyer, R.Donangelo, W.C.Ma, J.D.Cole

The first observation of a deformed K^π = 1⁺ ground-state band in ¹⁰⁰Nb and the high-spin level scheme of its 4n fission partner ¹⁴⁸La

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array. ¹⁰⁰Nb, ¹⁴⁸La; deduced ICCs, high-spin levels, J, π, rotational bands, multipolarities, shape coexistence and configurations.

doi: 10.1016/j.nuclphysa.2009.04.006
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2009LU18      Int.J.Mod.Phys. E18, 1697 (2009)

Y.X.Luo, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, C.Goodin, K.J.Li, X.L.Che, J.K.Hwang, I.Y.Lee, Z.Jiang, G.M.Ter-Akopian, A.V.Daniel, M.A.Stoyer, R.Donangelo, S.Frauendorf, V.Dimitrov, J.-Y.Zhang, J.D.Cole, N.J.Stone, J.O.Rasmussen

Odd-parity bands of ^{108, 110, 112}Ru

RADIOACTIVITY ²⁵²Cf(SF); ^108,110,112Ru; measured Eγ, Iγ, γγγ-coin.; deduced level schemes, mixing ratios, bands, J, π, angular correlations, level energies, B(E1)/B(E2), chiral doubling. Comparison with other chiral doubling candidates.

doi: 10.1142/S0218301309013646
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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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2009WA31      Chin.Phys.C 33, Supplement 1, 158 (2009)

J.-G.Wang, S.-J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, J.O.Rasmussen, Y.X.Luo, K.Li, I.Y.Lee, H.-B.Ding, Q.Xu, L.Gu, Y.-Y.Yang

Observation of a new rotational band in ¹⁰⁴Nb nucleus

RADIOACTIVITY ²⁵²Cf(SF); ¹⁰⁴Nb; measured Eγ, Iγ, γ-γ-coin.; deduced high-spin states, level scheme, J, π, rotational bands. Comparison with experimental data.

doi: 10.1088/1674-1137/33/S1/050
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2009YA26      Chin.Phys.C 33, Supplement 1, 199 (2009)

Y.-Y.Yang, S.-J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, J.O.Rasmussen, Y.X.Luo, K.Li, H.-B.Ding, J.-G.Wang, Q.Xu, L.Gu

High-spin states in neutron-rich ¹⁰²Mo nucleus

RADIOACTIVITY ²⁵²Cf(SF); ¹⁰²Mo; measured Eγ, Iγ, γ-γ-coin.; deduced high-spin states, level scheme, J, π, bands. Systematic comparison with experimental data.

doi: 10.1088/1674-1137/33/S1/064
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2009ZH24      Int.J.Mod.Phys. E18, 1717 (2009)

S.J.Zhu, Y.X.Luo, J.H.Hamilton, A.V.Ramayya, X.L.Che, Z.Jiang, J.K.Hwang, J.L.Wood, M.A.Stoyer, R.Donangelo, J.D.Cole, C.Goodin, J.O.Rasmussen

Even-parity bands of ^{108, 110, 112}Ru

RADIOACTIVITY ²⁵²Cf(SF); ^108,110,112Ru; measured Eγ, Iγ, γγ-coin.; deduced high-spin, even-parity bands, branching ratios, odd-even spin energy band staggering, doubling of levels in ¹¹⁰Ru, deformation parameters, triaxiality. Comparison with TRS calculations.

doi: 10.1142/S0218301309013798
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2009ZH50      Chin.Phys.C 33, Supplement 1, 145 (2009)

S.-J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, J.O.Rasmussen, Y.X.Luo, K.Li, J.-G.Wang, X.-L.Che, H.-B.Ding, S.Frauendorf, V.Dimitrov, Q.Xu, L.Gu, Y.-Y.Yang

Search for chiral bands in A ∼ 110 neutron-rich nuclei

RADIOACTIVITY ²⁵²Cf(SF); ¹⁰⁶Mo, ^110,112Ru; measured Eγ, Iγ, γ-γ-coin.; deduced high-spin states, chiral doublet vibrational bands, J, π, energies, B(E2)/B(M1), branching ratios. 3D-Tilted Axis Cranking (TAC) calculations.

doi: 10.1088/1674-1137/33/S1/046
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2008DI11      Phys.Rev. C 77, 057302 (2008)

H.B.Ding, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, K.Li, S.H.Liu, Y.X.Luo, J.O.Rasmussen, C.T.Goodin, I.Y.Lee, A.V.Daniel, G.M.Ter-Akopian, J.G.Wang, X.L.Che, L.Gu, W.C.Ma

Identification of the ν7/2⁺ [404] band in neutron-rich ¹⁰⁹Ru

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin. ¹⁰⁹Ru; deduced levels, J, π, band configurations. Total Routhian surface calculations.

doi: 10.1103/PhysRevC.77.057302
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2008GO28      Phys.Rev. C 78, 044331 (2008)

C.Goodin, N.J.Stone, A.V.Ramayya, A.V.Daniel, J.R.Stone, J.H.Hamilton, K.Li, J.K.Hwang, Y.X.Luo, J.O.Rasmussen, A.Gargano, A.Covello, G.M.Ter-Akopian

g factors, spin-parity assignments, and multipole mixing ratios of excited states in N = 82 isotones ¹³⁴Te, ¹³⁵I

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, angular correlations, g-factors. ¹³⁴Te, ¹³⁵I; deduced levels, J, π, mixing ratios. Comparison with shell model calculations.

doi: 10.1103/PhysRevC.78.044331
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2008HW01      J.Phys.(London) G35, 055102 (2008)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton

Comparison of Cd and Hg level structures with regard to shape coexistence and shell quenching

NUCLEAR STRUCTURE Cd, Hg; evaluated level structures, shape coexistence, shell quenching.

doi: 10.1088/0954-3899/35/5/055102
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2008HW02      Phys.Rev. C 78, 014309 (2008)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, K.Li, C.Goodin, Y.X.Luo, J.O.Rasmussen, S.J.Zhu

High spin states in ¹⁵³Nd and first identification of excited states in ¹⁵⁵Nd

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-, (particle)γ-coin. ^153,155Nd; deduced levels, configurations, rotational bands.

doi: 10.1103/PhysRevC.78.014309
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2008HW03      Phys.Rev. C 78, 017303 (2008)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, K.Li, C.Goodin, Y.X.Luo, J.O.Rasmussen, S.J.Zhu

Identification of levels in ¹⁵⁹Sm and high spin states in ^{89, 91}Kr

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin. ^89,91Kr, ¹⁵⁹Sm; deduced levels, J, π, bands, configurations. ^90,92Kr, ¹⁶¹Gd, ¹⁶³Dy; comparison with adopted levels.

doi: 10.1103/PhysRevC.78.017303
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2008LI45      Phys.Rev. C 78, 044317 (2008)

K.Li, J.H.Hamilton, A.V.Ramayya, S.J.Zhu, Y.X.Luo, J.K.Hwang, C.Goodin, J.O.Rasmussen, G.M.Ter-Akopian, A.V.Daniel, I.Y.Lee, S.C.Wu, R.Donangelo, J.D.Cole, W.C.Ma, M.A.Stoyer

Identification of new collective bands in neutron-rich ¹⁰²Zr

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin, angular correlations. ¹⁰²Zr; deduced levels, J, π, bands.

doi: 10.1103/PhysRevC.78.044317
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2008WA15      Phys.Rev. C 78, 014313 (2008)

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

First identification of a collective band in the odd-odd ¹⁰⁴Nb nucleus

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-coin, fission yields of ^103,104,105Nb, ^143,145,147La. ¹⁰⁴Nb; deduced levels, J, π, bands, configurations. ^101,102,103Nb, ^101,103Zr, ^103,105Mo; level systematics.

doi: 10.1103/PhysRevC.78.014313
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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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