NSR Query Results
Output year order : Descending NSR database version of May 9, 2024. Search: Author = A.Ramayya Found 404 matches. Showing 1 to 100. [Next]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, 146Ba 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
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, 143La 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
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, 106Mo 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
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, 164Gd 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
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
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
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
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
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
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
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
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. 152,153,154,155,156,157,158Pm; 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 151,153,155,157Pm. 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. 152,153,154,155,156,157,158Pm; deduced high-spin levels, bands.
doi: 10.1103/PhysRevC.98.044316
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, 108Mo, 108, 110, 112Ru, and 112, 114, 116Pd RADIOACTIVITY 252Cf(SF); measured fission fragments Eγ, Iγ(θ), γγ-coin using 101 HPGe GAMMASPHERE detectors; deduced 2+ excited states attenuation factors, g-factors. 102,104,106,108Mo;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
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
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
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
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
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 103,104,105,106,107,108Mo.
doi: 10.1103/PhysRevC.96.034319
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
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, 119Ag 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
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, 147La RADIOACTIVITY 252Cf(SF); 146,147La; measured fragments Eγ, Iγ, γγ-coin, triple and fourfold γ-coin using Gammasphere; deduced γ transitions, levels, J, π, T1/2, 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
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 Pn 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
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
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. 106,107,108,109,110Ru; observed γ rays.
doi: 10.1103/PhysRevC.93.064321
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
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
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. 143,144,145,146,147,148,149,150,151,152,153Pr; deduced levels, J, π, bands. Comparison with previous experimental data.
doi: 10.1103/PhysRevC.92.034317
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, 126Cd populated by β decay of 124, 126Ag RADIOACTIVITY 124,124m,126,126mAg(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
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
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
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
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
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
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, 96Zr NUCLEAR STRUCTURE 87,88,89,90,91,92Sr, 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
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
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
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
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, 104,105,106,108Mo, 107,109Tc, 108,110,112,114Ru.
doi: 10.1103/PhysRevC.88.054311
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, 118Pd RADIOACTIVITY 252Cf(SF); measured fission fragments Eγ, Iγ(θ), γγ-coin using Compton-suppressed Ge detectors of Gammasphere array. 112,114,115,116,117,118Pd 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
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, T1/2, 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
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 T1/2. 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
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
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
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
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, 96Sr and 95, 96, 97, 98Zr RADIOACTIVITY 252Cf(SF); measured decay products, Eγ, Iγ. 88,89,92,94,96Sr, 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
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
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, 122Cd RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array. 117,118,119,120,122Cd 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
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 T1/2. Comparison with FRDM, QRPA, density functional calculations.
doi: 10.1103/PhysRevLett.109.112501
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
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, 294117 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, T1/2. 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, T1/2, decay branch, Q-values. Comparison with available data.
doi: 10.1103/PhysRevLett.109.162501
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
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, T1/2.
doi: 10.1088/1742-6596/312/4/082026
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
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
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
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, 92Kr 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
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
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
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
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
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
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, 153Pr, 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
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
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. 107,108,109,110Tc; 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
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
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, 142Cs 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
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, 144Cs and the pronounced decrease of dipole moments with neutron number in odd-Z neutron-rich 141, 143, 144Cs 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. 105,106,107,108Tc; measured Eγ.
doi: 10.1016/j.nuclphysa.2010.03.003
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, T1/2. RADIOACTIVITY 293,294Ts, 289,290Mc, 285,286Nh, 282Rg, 278Mt, 274Bh(α); measured Eα, Iα, and half-lives. 270Db, 281Rg(SF); measured TKE, and T1/2.
doi: 10.1103/PhysRevLett.104.142502
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
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
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
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 116Agm1, 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 110,112,114,116,118,120Cd.
doi: 10.1103/PhysRevC.80.054318
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
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. 130,132,134,136,138,140,142Xe, 130,132,134,136,138,140,142,144,146Ba, 140,142,146,148Ce, 148,150Nd, 152,154Sm, 154,156,158,160Gd, 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
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, 107Mo, and 109, 111Ru 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
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, 107Tc 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
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
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
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, 93Rb and 155, 156Pm 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
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
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
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, 112Ru 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
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, 144La 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
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 Kπ = 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
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, 112Ru 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
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
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
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
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, 112Ru 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
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
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
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
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
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
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, 91Kr 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
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
2008WA15 Phys.Rev. C 78, 014313 (2008); Erratum Phys.Rev. C 109, 049902 (2024) J.G.Wang, E.H.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 Erratum: First identification of a collective band in the odd-odd 104Nb nucleus [Phys. Rev. C 78, 014313 (2008)] 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
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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