NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = N.R.Johnson Found 171 matches. Showing 1 to 100. [Next]1999MU05 Phys.Rev. C59, 2009 (1999) W.F.Mueller, H.Q.Jin, J.M.Lewis, W.Reviol, L.L.Riedinger, M.P.Carpenter, C.Baktash, J.D.Garrett, N.R.Johnson, I.Y.Lee, F.K.McGowan, C.-H.Yu, S.Cwiok High-Spin Structure in 181, 183Au NUCLEAR REACTIONS 152Sm(35Cl, 4n), E=170 MeV; 150Sm(35Cl, 4n), E=168 MeV; measured Eγ, Iγ, γγ-coin. 181,183Au deduced high-spin levels, J, π, configurations, rotational band features. NUCLEAR STRUCTURE 169,171,173,175,177,179Re, 171,173,175,177,179,181,183Ir, 177,179,181,183,185Au; calculated bandhead excitation energies, configurations, deformation parameters. 179Ir, 181,183,185Au; calculated Routhians, B(M1)/B(E2). Macroscopic-microscopic shell correction model.
doi: 10.1103/PhysRevC.59.2009
1998ZH39 Chin.Phys.Lett. 15, 793 (1998) S.-J.Zhu, C.-Y.Gan, J.H.Hamilton, A.V.Ramayya, B.R.S.Babu, M.Sakhaee, W.C.Ma, G.-L.Long, J.-K.Deng, L.-Y.Zhu, M.Li, L.-M.Yang, J.Kormicki, J.D.Cole, R.Aryaeinejad, Y.K.Dardenne, M.W.Drigert, J.O.Rasmussen, M.A.Stoyer, S.Y.Chu, K.E.Gregorich, M.F.Mohar, S.G.Prussin, I.Y.Lee, N.R.Johnson, F.K.McGowan Collective Band Structures in the Neutron-Rich 107, 109Ru Nuclei RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 107,109Ru deduced high-spin levels, J, π, configurations. Particle-rotor model analysis. Gammasphere array.
doi: 10.1088/0256-307X/15/11/005
1997JO01 Phys.Rev. C55, 652 (1997) N.R.Johnson, J.C.Wells, Y.Akovali, C.Baktash, R.Bengtsson, M.J.Brinkman, D.M.Cullen, C.J.Gross, H.-Q.Jin, I.-Y.Lee, A.O.Macchiavelli, F.K.McGowan, W.T.Milner, C.-H.Yu Lifetimes of High-Spin States in the πi13/2 Band of 173Re NUCLEAR REACTIONS 150Sm(27Al, 4n), E=132 MeV; measured γγγ-coin. 173Re deduced high-spin levels T1/2, transition quadrupole moments.
doi: 10.1103/PhysRevC.55.652
1997TE03 Phys.Rev. C55, 1146 (1997) G.M.Ter-Akopian, J.H.Hamilton, Yu.Ts.Oganessian, A.V.Daniel, J.Kormicki, A.V.Ramayya, G.S.Popeko, B.R.S.Babu, Q.-H.Lu, K.Butler-Moore, W.-C.Ma, E.F.Jones, J.K.Deng, D.Shi, J.Kliman, M.Morhac, J.D.Cole, R.Aryaeinejad, N.R.Johnson, I.Y.Lee, F.K.McGowan Yields of Correlated Fragment Pairs in Spontaneous Fission of 252Cf RADIOACTIVITY 252Cf(SF); measured correlated fragment pairs yields for Ru-Xe, Zr-Ce, Mo-Ba, Sr-Nd isotopes; deduced fission fragment yields vs mass, neutron multiplicities.
doi: 10.1103/PhysRevC.55.1146
1997ZH23 J.Phys.(London) G23, L77 (1997) S.J.Zhu, J.H.Hamilton, A.V.Ramayya, M.G.Wang, E.F.Jones, J.K.Hwang, B.R.S.Babu, W.C.Ma, G.L.Long, M.Li, L.Y.Zhu, J.K.Deng, T.N.Ginter, J.Kormicki, J.D.Cole, R.Aryaeinejad, Y.K.Dardenne, M.W.Drigert, G.Ter-Akopian, Yu.Ts.Oganessian, A.Daniel, J.O.Rasmussen, M.A.Stoyer, I.Y.Lee, S.Y.Chu, K.E.Gregorich, M.F.Mohar, S.G.Prussin, N.R.Johnson, F.K.McGowan High Spin Octupole Correlations in the N = 85, 139Xe and 141Ba Isotones RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγγ-coin. 139Xe, 141Ba deduced high-spin levels, J, π, B(E1)/B(E2) ratios, configurations, octupole bands. Gammasphere array. Band systematics from other data input.
1997ZH25 Chin.Phys.Lett. 14, 569 (1997) S.-J.Zhu, M.-G.Wang, J.H.Hamilton, A.V.Ramayya, B.R.S.Babu, W.C.Ma, G.-L.Long, J.-K.Deng, L.-Y.Zhu, M.Li, T.N.Ginter, J.Kormicki, J.D.Cole, R.Aryaeinejad, Y.K.Dardenne, M.W.Drigert, J.O.Rasmussen, Yu.Ts.Oganessian, M.A.Stoyer, S.Y.Chu, K.E.Gregorich, M.F.Mohar, S.G.Prussin, I.Y.Lee, N.R.Johnson, F.K.McGowan Reflection Asymmetric Shapes in the Neutron-Rich 140,143Ba Isotopes RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 140,143Ba deduced levels, J, π, B(E1)/B(E2), γ-multipolarity, octupole deformation, other shape related features.
1996BI06 Phys.Rev. C53, 3165 (1996) K.S.Bindra, P.F.Hua, B.R.S.Babu, C.Baktash, J.Barreto, D.M.Cullen, C.N.Davids, J.K.Deng, J.D.Garrett, M.L.Halbert, J.H.Hamilton, N.R.Johnson, A.Kirov, J.Kormicki, I.Y.Lee, W.C.Ma, F.K.McGowan, A.V.Ramayya, D.G.Sarantites, F.Soramel, D.Winchell Reply to ' Comment on ' Prolate-Oblate Band Mixing and New Bands in 182Hg ' ' NUCLEAR STRUCTURE 182Hg; analyzed band-mixing interpretations; deduced method's applicability limitations.
doi: 10.1103/PhysRevC.53.3165
1996CH34 Int.J.Mod.Phys. E5, 565 (1996) L.Chaturvedi, B.R.S.Babu, J.H.Hamilton, A.V.Ramayya, W.C.Ma, S.J.Zhu, J.Kormicki, A.Petrovici, K.W.Schmid, A.Faessler, N.R.Johnson, I.Y.Lee, C.Baktash, F.K.McGowan, M.L.Halbert, M.Riley, J.D.Cole Negative Parity States in 68Ge: Experiment and theory NUCLEAR REACTIONS 46Ti(25Mg, n2p), E=68 MeV; measured γγ-coin. 68Ge deduced high-spin levels, γ-multipolarity, band structure.
doi: 10.1142/S021830139600030X
1996HA27 Phys.Rep. 264, 215 (1996) J.H.Hamilton, G.M.Ter-Akopian, Yu.Ts.Oganessian, J.Kormicki, S.J.Zhu, M.G.Wang, Q.Lu, K.Butler-Moore, A.V.Ramayya, W.C.Ma, B.R.S.Babu, D.Shi, J.K.Deng, G.S.Popeko, A.V.Daniel, W.Greiner, A.Sandulescu, J.D.Cole, R.Aryaeinejad, J.Kliman, V.Polhorsky, M.Morhac, N.R.Johnson, I.Y.Lee, F.K.McGowan, L.K.Peker Structure of Neutron-Rich Nuclei and Neutron Multiplicities in Spontaneous Fission RADIOACTIVITY 252Cf(SF); compiled, reviewed γγ-, γγγ-coin data. 140,143,145,147Ba, 136Te, 138Xe deduced high-spin levels. Other nuclei included.
doi: 10.1016/0370-1573(95)00039-9
1996JI04 Phys.Rev. C53, 2106 (1996) H.-Q.Jin, L.L.Riedinger, C.R.Bingham, M.P.Carpenter, V.P.Janzen, C.-H.Yu, L.Zhou, P.B.Semmes, J.-Y.Zhang, M.A.Riley, C.Baktash, M.L.Halbert, N.R.Johnson, I.Y.Lee, F.K.McGowan Effects of Intruder States in 179Ir NUCLEAR REACTIONS 156Gd(27Al, 4n), E=134-144 MeV; measured Eγ, Iγ, DCO ratios, γγ-coin. 179Ir deduced rotational bands, high-spin levels, J, π, γ multipolarity, configuration. Model comparison.
doi: 10.1103/PhysRevC.53.2106
1996JO03 Phys.Rev. C53, 671 (1996) N.R.Johnson, F.K.McGowan, D.F.Winchell, C.Baktash, J.D.Garrett, I.Y.Lee, J.C.Wells, L.Chaturvedi, W.B.Gao, W.C.Ma, S.Pilotte, C.-H.Yu Evolution of Collectivity to Very High Spins in 160Yb NUCLEAR REACTIONS 120Sn(44Ca, 4n), E=200 MeV; measured Eγ, Iγ, γγ-coin, Doppler broadened line shapes. 160Yb deduced transition quadrupole moments, high-spin levels T1/2. Enriched target. Comparison with theoretical model predictions.
doi: 10.1103/PhysRevC.53.671
1996PA17 J.Phys.(London) G22, 1013 (1996) D.Pantelica, A.Pantelica, F.Negoita, A.V.Ramayya, J.H.Hamilton, L.Chaturvedi, J.Kormicki, B.R.S.Babu, A.Petrovici, K.W.Schmid, A.Faessler, N.R.Johnson, I.Y.Lee, C.Baktash, F.K.McGowan, J.D.Cole, E.F.Zganjar, T.M.Cormier Structure of Odd-Odd 72As: Experiment and theory NUCLEAR REACTIONS 59Co(16O, n2p), E=52 MeV; 56Fe(19F, n2p), E=60 MeV; 47Ti(28Si, 3p), E=95 MeV; measured γγ-, (particle)γγ-coin, γγ(t), Eγ, Iγ, γ(θ). 72As deduced levels, J, π, B(λ), γ multipolarity. Model comparison.
doi: 10.1088/0954-3899/22/7/007
1996PE04 Phys.Rev. C53, 2134 (1996) A.Petrovici, K.W.Schmid, A.Faessler, D.Pantelica, F.Negoita, B.R.S.Babu, A.V.Ramayya, J.H.Hamilton, J.Kormicki, L.Chaturvedi, W.C.Ma, S.J.Zhu, N.R.Johnson, I.Y.Lee, C.Baktash, F.K.McGowan, M.L.Halbert, M.Riley, J.D.Cole High Spin States in 68As: Experiment and theory NUCLEAR REACTIONS 56Fe(14N, 2n), E=46 MeV; 58Ni(12C, np), E=36, 45 MeV; 46Ti(25Mg, 2np), E=68 MeV; measured γγ-coin. 68As deduced high-spin levels, J, π. Model comparison.
doi: 10.1103/PhysRevC.53.2134
1996SA03 Phys.Rev. C53, 652 (1996) J.X.Saladin, M.P.Metlay, D.F.Winchell, M.S.Kaplan, I.Y.Lee, C.Baktash, M.L.Halbert, N.R.Johnson, O.Dietzsch Evidence for Continuum E0 Transitions following the Decay of High Spin States in 130Ce NUCLEAR REACTIONS 100Mo(34S, 4n), E=140 MeV; measured γγ-, eγ-coin. 130Ce deduced high-spin levels, E0 transition strength, sub-shell ICC, γ multipolarity.
doi: 10.1103/PhysRevC.53.652
1996TE04 Phys.Rev.Lett. 77, 32 (1996) G.M.Ter-Akopian, J.H.Hamilton, Yu.Ts.Oganessian, A.V.Daniel, J.Kormicki, A.V.Ramayya, G.S.Popeko, B.R.S.Babu, Q.-H.Lu, K.Butler-Moore, W.-C.Ma, S.Cwiok, W.Nazarewicz, J.K.Deng, D.Shi, J.Kliman, M.Morhac, J.D.Cole, R.Aryaeinejad, N.R.Johnson, I.Y.Lee, F.K.McGowan, J.X.Saladin New Spontaneous Fission Mode for 252Cf: Indication of hyperdeformed 144,145,146Ba at scission RADIOACTIVITY 252Cf(SF); measured γγ-coin, prompt neutron multiplicities, Mo, Ba isotopes correlated fragment pairs yields; deduced new fission mode. 144,145,146Ba deduced hyperdeformed shape evidence at scission.
doi: 10.1103/PhysRevLett.77.32
1996XI01 Nucl.Phys. A599, 560 (1996) H.Xie, F.K.McGowan, C.Baktash, J.D.Garrett, J.H.Hamilton, N.R.Johnson, I.Y.Lee, J.C.Wells, R.Wyss, C.-H.Yu The Loss of Collectivity at High Spins in 164Yb and Its Neighboring Even-Even Nuclei NUCLEAR REACTIONS 124Sn(44Ca, 4n), E=189 MeV; measured Iγ, γγγ-coin spectra, Doppler broadened line-shape method. 164Yb deduced high-spin states T1/2, transition quadrupole moments. NUCLEAR STRUCTURE 160,162,164,166,168Yb; calculated potential energy surfaces; deduced deformation parameters β2β4, γ. Cranked-Strutinsky type calculations.
doi: 10.1016/0375-9474(95)00446-7
1995BA26 Phys.Rev.Lett. 74, 1946 (1995) C.Baktash, D.M.Cullen, J.D.Garrett, C.J.Gross, N.R.Johnson, W.Nazarewicz, D.G.Sarantites, J.Simpson, T.R.Werner First Observation of a Superdeformed Band in the N, Z ≈ 40 Mass Region NUCLEAR REACTIONS 56Fe(30Si, X), E=128 MeV; measured γγ-coin. 83Sr deduced high-spin levels, J, π, superdeformed, rotational bands, dynamical moment of inertia.
doi: 10.1103/PhysRevLett.74.1946
1995BI02 Phys.Rev. C51, 401 (1995) K.S.Bindra, P.F.Hua, B.R.S.Babu, C.Baktash, J.Barreto, D.M.Cullen, C.N.Davids, J.K.Deng, J.D.Garrett, M.L.Halbert, J.H.Hamilton, N.R.Johnson, A.Kirov, J.Kormicki, I.Y.Lee, W.C.Ma, F.K.McGowan, A.V.Ramayya, D.G.Sarantites, F.Soramel, D.Winchell Prolate-Oblate Band Mixing and New Bands in 182Hg NUCLEAR REACTIONS 154Gd(32S, 4n), E=160-165 MeV; measured Eγ, Iγ, γγ(θ). 182Hg deduced high-spin levels, J, π, shape features. Compton suppressed Ge detectors, fragment mass analyzer, high spin states.
doi: 10.1103/PhysRevC.51.401
1995CU03 Phys.Rev. C52, 2415 (1995) D.M.Cullen, C.Baktash, M.J.Fitch, I.Frosch, R.W.Gray, N.R.Johnson, I.Y.Lee, A.O.Macchiavelli, W.Reviol, X.-H.Wang, C.-H.Yu High-Spin States and K-Forbidden Decay in 172Hf NUCLEAR REACTIONS 128Te(48Ca, 4n), E=200, 214 MeV; measured Eγ, Iγ, γγγ-coin. 172Hf deduced high-spin levels, J, π, rotational, strongly-coupled bands, B(λ) ratios, configurations, high-K isomers, M1, E2 transitions reduced hindrance factors. Cranked shell model calculation.
doi: 10.1103/PhysRevC.52.2415
1995DE30 Phys.Rev. C52, 595 (1995) J.K.Deng, W.C.Ma, J.H.Hamilton, A.V.Ramayya, J.Kormicki, W.B.Gao, X.Zhao, D.T.Shi, I.Y.Lee, J.D.Garrett, N.R.Johnson, D.Winchell, M.Halbert, C.Baktash New High-Spin Band Structures in 184Hg NUCLEAR REACTIONS 156Gd(32S, 4n), E=160 MeV; measured Eγ, Iγ, γγ(θ), DCO ratios. 184Hg deduced high-spin levels, J, π, B(M1)/B(E2) ratios, configurations. Ge(Li) detectors array.
doi: 10.1103/PhysRevC.52.595
1995LU10 Phys.Rev. C52, 1348 (1995) Q.H.Lu, K.Butler-Moore, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, V.E.Oberacker, W.C.Ma, B.R.S.Babu, J.K.Deng, J.Kormicki, J.D.Cole, R.Aryaeinejad, Y.X.Dardenne, M.Drigert, L.K.Peker, J.O.Rasmussen, M.A.Stoyer, S.Y.Chu, K.E.Gregorich, I.Y.Lee, M.F.Mohar, J.M.Nitschke, N.R.Johnson, F.K.McGowan, G.M.Ter-Akopian, Yu.Ts.Oganessian, J.B.Gupta Structure of 108,110,112Ru: Identical bands in 108,110Ru RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-, γγγ-, (X-ray)γ-coin. 108,110,112Ru deduced levels, J, π, intraband B(E2) ratios. Rotation-vibration, rigid triaxial rotor calculation.
doi: 10.1103/PhysRevC.52.1348
1995RI01 Phys.Rev. C51, 1234 (1995) M.A.Riley, T.B.Brown, N.R.Johnson, Y.A.Akovali, C.Baktash, M.L.Halbert, D.C.Hensley, I.Y.Lee, F.K.McGowan, A.Virtanen, M.E.Whitley, J.Simpson, L.Chaturvedi, L.H.Courtney, V.P.Janzen, L.L.Riedinger, T.Bengtsson Alignments, Shape Changes, and Band Terminations in 157Tm NUCLEAR REACTIONS 51V(110Pd, X), E=220 MeV; measured γγ-coin, Eγ, Iγ. 157Tm deduced high-spin levels, J, π, γ-multipolarity. Cranked Nilsson-Strutinsky calculations, pairing.
doi: 10.1103/PhysRevC.51.1234
1995VI05 Nucl.Phys. A591, 145 (1995) A.Virtanen, N.R.Johnson, F.K.McGowan, I.Y.Lee, C.Baktash, M.A.Riley, J.C.Wells, J.Dudek Transition Quadrupole Moments of High-Spin States in 172Os NUCLEAR REACTIONS 144Nd(32S, 4n), E=162 MeV; measured γγ-coin, Doppler-shift recoil-distance. 172Os levels deduced T1/2, transition quadrupole moment for yrast negative-parity bands, B(E1). Cranked HFB calculations, band-mixing model.
doi: 10.1016/0375-9474(95)00132-K
1995WI18 Phys.Rev. C51, 2952 (1995) D.F.Winchell, I.Y.Lee, C.Baktash, J.D.Garrett, M.L.Halbert, N.R.Johnson, F.K.McGowan, C.H.Yu Search for Two-Phonon Gamma Vibrational States in 164Dy NUCLEAR REACTIONS 164Dy(58Ni, 58Ni'), E=250 MeV; measured Eγ, Iγ, γ(θ), γγ-coin following Coulomb excitation. 164Dy deduced levels, J, π, B(λ), δ, band mixing parameters.
doi: 10.1103/PhysRevC.51.2952
1995ZH15 J.Phys.(London) G21, L57 (1995); Corrigendum J.Phys.(London) G21, 1555 (1995) S.J.Zhu, J.H.Hamilton, A.V.Ramayya, B.R.S.Babu, Q.H.Lu, W.C.Ma, T.N.Ginter, M.G.Wang, J.Kormicki, J.K.Deng, D.Shi, J.D.Cole, R.Aryaeinejad, J.Rasmussen, M.A.Stoyer, S.Y.Chu, K.E.Gregorich, M.F.Mohar, S.Prussin, G.M.Ter-Akopian, Yu.Ts.Oganessian, N.R.Johnson, I.Y.Lee, F.K.McGowan Identification of Levels in 160Sm and New High Spin States in 156,158Sm RADIOACTIVITY 252Cf(SF); measured γγ-, (X-ray)(X-ray)-, γ(X-ray)-, γγγ-coin. 156,158Sm deduced high-spin levels, J, π, configuration, band structure. 160Sm deduced levels.
doi: 10.1088/0954-3899/21/7/002
1995ZH34 Phys.Lett. 357B, 273 (1995) S.J.Zhu, Q.H.Lu, J.H.Hamilton, A.V.Ramayya, L.K.Peker, M.G.Wang, W.C.Ma, B.R.S.Babu, T.N.Ginter, J.Kormicki, D.Shi, J.K.Deng, W.Nazarewicz, J.O.Rasmussen, M.A.Stoyer, S.Y.Chu, K.E.Gregorich, M.F.Mohar, S.Asztalos, S.G.Prussin, J.D.Cole, R.Aryaeinejad, Y.K.Dardenne, M.Drigert, K.J.Moody, R.W.Lougheed, J.F.Wild, N.R.Johnson, I.Y.Lee, F.K.McGowan, G.M.Ter-Akopian, Yu.Ts.Oganessian Octupole Deformation in 142,143Ba and 144Ce: New band structures in neutron-rich Ba-isotopes RADIOACTIVITY 252Cf(SF); 242Pu(SF); measured γγ-, γγγ-coin following fission fragment decay. 142,143,144,145,146,147Ba, 144Ce deduced high-spin levels, J, π, band structure, shape features, B(λ) in some cases.
doi: 10.1016/0370-2693(95)00900-6
1995ZH39 J.Phys.(London) G21, L75 (1995) S.J.Zhu, J.H.Hamilton, Q.H.Lu, A.V.Ramayya, M.G.Wang, B.R.S.Babu, T.N.Ginter, W.C.Ma, J.K.Deng, D.Shi, J.Kormicki, J.D.Cole, R.Aryaeinejad, Y.X.Dardenne, M.W.Drigert, N.R.Johnson, I.Y.Lee, F.K.McGowan, G.M.Ter-Akopian, Yu.Ts.Oganessian, J.O.Rasmussen, M.A.Stoyer, S.Y.Chu, K.E.Gregorich, M.F.Mohar, S.Prussin Identification of 152Ce and Unexpected Variations in Moments of Inertia with Neutron Number and Spin in 142-148Ba, 144-152Ce and 146-156Nd RADIOACTIVITY 252Cf, 242Pu(SF); measured γ(X-ray)-, γγγ-, (X-ray)(X-ray)-coin. 142,144,146,148Ba, 144,146,148,150,152Ce, 146,148,150,152,154,156Nd deduced high-spin levels, band structure, moments of inertia.
doi: 10.1088/0954-3899/21/10/001
1994GA15 Phys.Rev. C49, 3309 (1994) G.Garcia Bermudez, C.Baktash, V.Abenante, H.C.Griffin, M.L.Halbert, D.C.Hensley, N.R.Johnson, I.Y.Lee, F.K.McGowan, M.A.Riley, D.G.Sarantites, T.M.Semkow, D.W.Stracener, A.Virtanen High Spin States of 84Sr NUCLEAR REACTIONS 52Cr(36S, 2n2p), E=130 MeV; measured Eγ, Iγ, γγ-coin. 84Sr deduced levels, J, π.
doi: 10.1103/PhysRevC.49.3309
1994HA31 J.Phys.(London) G20, L85 (1994) J.H.Hamilton, A.V.Ramayya, J.Kormicki, W.-C.Ma, Q.Lu, D.Shi, J.K.Deng, S.J.Zhu, A.Sandulescu, W.Greiner, G.M.Ter-Akopian, Yu.Ts.Oganessian, G.S.Popeko, A.V.Daniel, J.Kliman, V.Polhorsky, M.Morhac, J.D.Cole, R.Aryaeinejad, I.Y.Lee, N.R.Johnson, F.K.McGowan Zero Neutron Emission in Spontaneous Fission of 252Cf: A form of cluster radioactivity RADIOACTIVITY 252Cf(SF); measured γγγ-coin; deduced neutronless spontaneous fission evidence, 106Mo+146Ba, 108Mo+144Ba, 104Zr+148Ce cluster production.
doi: 10.1088/0954-3899/20/8/003
1994KL10 Yad.Fiz. 57, No 7, 1174 (1994); Phys.Atomic Nuclei 57, 1108 (1994) J.Kliman, V.Polhorsky, M.Morhac, G.M.Ter-Akopian, Yu.Ts.Oganessian, G.S.Popeko, A.V.Daniel, J.H.Hamilton, K.Butler-Moore, A.V.Ramayya, W.-C.Ma, X.Zhao, Q.Lu, D.Shi, J.K.Deng, J.Kormicki, S.Zhu, J.D.Cole, R.Aryaeinejad, R.C.Greenwood, S.S.Harrill, N.D.Lohstreter, I.Y.Lee, N.R.Johnson, F.K.McGowan Correlated Yields and the Emission of Neutrons of Mo/Ba Fragments from 252Cf(SF) RADIOACTIVITY 252Cf(SF); analyzed fission data; deduced (Mo/Ba)fragment charge division evidence.
1994LE24 Phys.Rev. C50, 2602 (1994) I.Y.Lee, C.Baktash, D.M.Cullen, J.D.Garrett, N.R.Johnson, F.K.McGowan, D.F.Winchell, C.H.Yu Lifetimes of Low-Spin States in the Superdeformed Band of 192Hg NUCLEAR REACTIONS 160Gd(36S, 4n), E=159 MeV; measured γγ-coin. 192Hg deduced superdeformed high-spin states T1/2. Recoil distance method.
doi: 10.1103/PhysRevC.50.2602
1994MC06 Nucl.Phys. A580, 335 (1994) F.K.McGowan, N.R.Johnson, M.N.Rao, C.Baktash, I.Y.Lee, J.C.Wells, M.Kortelahti, V.P.Janzen Transition Quadrupole Moments of High-Spin States in 170W NUCLEAR REACTIONS 122Sn(52Cr, 4n), E=230 MeV; measured γγ-coin, Doppler shift recoil distance. 170W deduced high-spin levels T1/2, transition quadrupole moments, B(λ), band structure.
doi: 10.1016/0375-9474(94)90778-1
1994PI01 Phys.Rev. C49, 718 (1994) S.Pilotte, C.-H.Yu, H.Q.Jin, J.M.Lewis, L.L.Riedinger, Y.Liang, R.V.F.Janssens, M.P.Carpenter, T.L.Khoo, T.Lauritsen, F.Soramel, I.G.Bearden, C.Baktash, J.D.Garrett, N.R.Johnson, I.Y.Lee, F.K.McGowan Superdeformed Bands in 191Tl NUCLEAR REACTIONS 159Tb(36S, 4n), E=165 MeV; measured Eγ, Iγ, γγ-coin. 191Tl deduced superdeformed levels J, π, single particle configuration. Enriched target, Compton-suppressed Ge detector array. Cranked shell model.
doi: 10.1103/PhysRevC.49.718
1994TE08 Phys.Rev.Lett. 73, 1477 (1994) G.M.Ter-Akopian, J.H.Hamilton, Yu.Ts.Oganessian, J.Kormicki, G.S.Popeko, A.V.Daniel, A.V.Ramayya, Q.Lu, K.Butler-Moore, W.C.Ma, J.K.Deng, D.Shi, J.Kliman, V.Polhorsky, M.Morhac, W.Greiner, A.Sandelescu, J.D.Cole, R.Aryaeinejad, N.R.Johnson, I.Y.Lee, F.K.McGowan Neutron Multiplicities and Yields of Correlated Zr-Ce and Mo-Ba Fragment Pairs in Spontaneous Fission of 252Cf RADIOACTIVITY 252Cf(SF); measured γγ-, γγγ-coin; deduced Zr-Ce, Mo-Ba correlated fission fragment pair relative yields, neutron multiplicities.
doi: 10.1103/PhysRevLett.73.1477
1993AR05 Phys.Rev. C48, 566 (1993) R.Aryaeinejad, J.D.Cole, R.C.Greenwood, S.S.Harrill, N.P.Lohstreter, K.Butler-Moore, S.Zhu, J.H.Hamilton, A.V.Ramayya, X.Zhao, W.C.Ma, J.Kormicki, J.K.Deng, W.B.Gao, I.Y.Lee, N.R.Johnson, F.K.McGowan, G.Ter-Akopyan, Y.Oganesyan Band Crossing Observed in Neutron-Rich Pd Isotopes via Spontaneous Fission of 252Cf RADIOACTIVITY 252Cf(SF); measured Iγ, γγ-, nγ-coin. 112,114,116Pd deduced levels, J, π, band crossing. Interacting boson and cranked shell models.
doi: 10.1103/PhysRevC.48.566
1993BU12 J.Phys.(London) G19, L121 (1993) K.Butler-Moore, J.H.Hamilton, A.V.Ramayya, S.Zhu, X.Zhao, W.C.Ma, J.Kormicki, J.K.Deng, W.B.Gao, J.D.Cole, R.Aryaeinejad, I.Y.Lee, N.R.Johnson, F.K.McGowan, G.Ter-Akopyan, Y.Oganesyan Levels in 136Te and New High-Spin States in Neutron-Rich N = 84 Isotones RADIOACTIVITY 252Cf(SF); measured γγ-, γγγ-coin. 140,138Xe, 140Ba, 136Te deduced levels, J, π, transition Iγ.
doi: 10.1088/0954-3899/19/7/004
1993CU02 Phys.Rev. C47, 1298 (1993) D.M.Cullen, I.Y.Lee, C.Baktash, J.D.Garrett, N.R.Johnson, F.K.McGowan, D.F.Winchell X-Ray Yields of Superdeformed States in 193Hg NUCLEAR REACTIONS 150Nd(48Ca, 5n), E=213 MeV; measured Eγ, Iγ, X-ray spectra, γ(X-ray)-, γγ-coin. 193Hg deduced superdeformed, normal deformed bands X-ray yields.
doi: 10.1103/PhysRevC.47.1298
1993DE42 Phys.Lett. 319B, 63 (1993) J.K.Deng, W.C.Ma, J.H.Hamilton, J.D.Garrett, C.Baktash, D.M.Cullen, N.R.Johnson, I.Y.Lee, F.K.McGowan, S.Pilotte, C.H.Yu, W.Nazarewicz High-Spin Single-Particle States in 193Hg NUCLEAR REACTIONS 150Nd(48Ca, 5n), E=210 MeV; measured γγγ-, higher fold-coin, DCO ratios. 193Hg deduced levels, J, π, band structure.
doi: 10.1016/0370-2693(93)90782-D
1993JO06 Nucl.Phys. A557, 347c (1993) N.R.Johnson, J.C.Wells, F.K.McGowan, D.F.Winchell, I.Y.Lee, P.Semmes, C.Baktash, J.D.Garrett, Y.A.Akovali, R.Bengtsson, R.Wyss, W.C.Ma, W.B.Gao, C.H.Yu, S.Pilotte Test of Predicted Deformation-Driving Effects in 173Re NUCLEAR REACTIONS 150Sm(27Al, 4n), E=125 MeV; measured γγ-coin. 173Re levels deduced T1/2, B(λ), ratios, quadrupole moment, transition energy.
doi: 10.1016/0375-9474(93)90553-A
1993LE03 Nucl.Phys. A554, 485 (1993) I.Y.Lee, H.Xie, C.Baktash, W.B.Gao, J.D.Garrett, N.R.Johnson, F.K.McGowan, R.Wyss Lifetime Measurements for Continuum Gamma Rays in 164Yb and 170Hf NUCLEAR REACTIONS 130Te(44Ca, 4n), E=195 MeV; 124Sn(44Ca, 4n), E=189 MeV; measured γγ-coin, γγ(θ). 164Yb, 170Hf deduced continuum states, T1/2. Enriched targets, array of Compton suppressed Ge detectors.
doi: 10.1016/0375-9474(93)90231-L
1993MA02 Phys.Rev. C47, R5 (1993) W.C.Ma, J.H.Hamilton, A.V.Ramayya, L.Chaturvedi, J.K.Deng, W.B.Gao, Y.R.Jiang, J.Kormicki, X.W.Zhao, N.R.Johnson, J.D.Garrett, I.Y.Lee, C.Baktash, F.K.McGowan, W.Nazarewicz, R.Wyss First Evidence for States in Hg Nuclei with Deformations between Normal and Super Deformation NUCLEAR REACTIONS 154Gd(36S, 4n), E=159-175 MeV; measured γγ-coin. 186Hg deduced levels, J, π, T1/2, deformation between normal and superdeformed, configuration, Iγ, quadrupole moments.
doi: 10.1103/PhysRevC.47.R5
1992HA44 High Energy Phys. and Nucl.Phys. (China) 16, 539 (1992) J.H.Hamilton, A.V.Ramayya, L.Chaturvedi, J.Kormicki, X.W.Zhao, I.Y.Lee, N.R.Johnson, C.Backtach, F.K.McGowan, M.L.Halbert, J.D.Cole Research on High Spin States in 68Ge, 65Ga and 67Ga
1992JI03 Phys.Lett. 277B, 387 (1992) H.-Q.Jin, L.L.Riedinger, C.-H.Yu, W.Nazarewicz, R.Wyss, J.-Y.Zhang, C.Baktash, J.D.Garrett, N.R.Johnson, I.Y.Lee, F.K.McGowan Electromagnetic Properties of the [303(bar)] (5/2), (7/2) Pseudo-Spin Doublet in 175Re NUCLEAR REACTIONS 156Gd(23Na, 4n), E=111 MeV; measured γγ-coin. 175Re deduced levels, J, π, configurations, B(λ) ratios. Pseudo SU(3) coupling scheme, asymptotic limit.
doi: 10.1016/0370-2693(92)91799-F
1992LE12 Phys.Rev. C46, 597 (1992) I.Y.Lee, C.Baktash, J.R.Beene, M.L.Halbert, D.C.Hensley, N.R.Johnson, F.K.McGowan, M.A.Riley, D.G.Sarantites Quantitative Studies of Continuum Gamma-Ray Correlations in 170Hf NUCLEAR REACTIONS 130Te(44Ca, 4n), E=195.5 MeV; measured γγ-energy correlation, continuum spectra in 170Hf; deduced energy correlation function width, rotational damping width.
doi: 10.1103/PhysRevC.46.597
1992MC02 Nucl.Phys. A539, 276 (1992) F.K.McGowan, N.R.Johnson, C.Baktash, I.Y.Lee, Y.Schutz, J.C.Wells, A.Larabee Transition Quadrupole Moments of High-Spin States in 162,163Yb NUCLEAR REACTIONS 116Cd(50Ti, xn), E=215 MeV; measured Eγ, Iγ, Doppler shift. 162Yb deduced levels, J, π, B(λ), band structure, T1/2, quadrupole moments. 163Yb deduced levels, J, π, quadrupole moments, band structure, T1/2. Cranked Hartree-Fock-Bogoliubov calculations.
doi: 10.1016/0375-9474(92)90271-K
1992ZH42 Rev.Mex.Fis. 38, 53 (1992) S.Zhu, X.Zhao, J.H.Hamilton, A.V.Ramayya, Q.Lu, W.-C.Ma, L.K.Peker, J.Kormicki, H.Xie, W.B.Gao, J.K.Deng, I.Y.Lee, N.R.Johnson, F.K.McGowan, C.E.Bemis, J.D.Cole, R.Aryaeinejad, G.M.Ter-Akopian, Yu.Ts.Oganessian Higher Spin States in Neutron Rich Nuclei
1991BA12 Phys.Lett. 255B, 174 (1991) C.Baktash, G.Garcia-Bermudez, D.G.Sarantites, W.Nazarewicz, V.Abenante, J.R.Beene, H.C.Griffin, M.L.Halbert, D.C.Hensley, N.R.Johnson, I.Y.Lee, F.K.McGowan, M.A.Riley, D.W.Stracener, T.M.Semkow, A.Virtanen Shape Coexistence and Disappearance of Pairing Correlations in 82Sr NUCLEAR REACTIONS 52Cr(34S, 2n2p), E=130 MeV; measured γγ-coin. 82Sr deduced levels, J, π, band structure, shape features. Woods-Saxon cranking calculations.
doi: 10.1016/0370-2693(91)90232-F
1991CH14 Phys.Rev. C43, 2541 (1991) L.Chaturvedi, X.Zhao, A.V.Ramayya, J.H.Hamilton, J.Kormicki, S.Zhu, C.Girit, H.Xie, W.-B.Gao, Y.-R.Jiang, A.Petrovici, K.W.Schmid, A.Faessler, N.R.Johnson, C.Baktash, I.Y.Lee, F.K.McGowan, M.L.Halbert, M.A.Riley, J.H.McNeill, M.O.Kortelahti, J.D.Cole, R.B.Piercey, H.Q.Jin Tests of Microscopic Calculations of Multiple Band Structures and Large Deformations in 68Ge and 72Se NUCLEAR REACTIONS 46Ti(25Mg, n2p), E=68 MeV; 47Ti(28Si, X), E=95 MeV; measured γγ-coin. 68Ge, 72Se deduced levels, J, π, band structure, deformation features.
doi: 10.1103/PhysRevC.43.2541
1991GA18 Phys.Rev. C44, 1380 (1991) W.B.Gao, I.Y.Lee, C.Baktash, R.Wyss, J.H.Hamilton, C.M.Steele, C.H.Yu, N.R.Johnson, F.K.McGowan High Spin Spectroscopy and Lifetime Measurements in 169Hf NUCLEAR REACTIONS 130Te(44Ca, 5n), E=195 MeV; measured γγ-coin, DSA. 169Hf deduced levels, J, π, T1/2, transition quadrupole moments, yrast band, γ-branching ratio.
doi: 10.1103/PhysRevC.44.1380
1991MC04 Nucl.Phys. A530, 490 (1991) F.K.McGowan, N.R.Johnson, I.Y.Lee, C.Baktash, J.W.McConnell, M.N.Rao, M.Oshima, J.C.Wells, A.Larabee, L.L.Riedinger, R.Bengtsson, Z.Xing Transition Quadrupole Moments of High-Spin States in 172W and Their Implications for the Interpretation of Band Crossings in the Light Isotopes of W to Pt NUCLEAR REACTIONS 124Sn(52Cr, 4n), E=225 MeV; measured γγ-coin, γ-spectra, Doppler shift recoil-distance. 172W deduced levels, J, π, T1/2, band structure, B(E1). NUCLEAR STRUCTURE 172W; calculated total routhian surface, deformation parameters β2, β4. Cranked HFB.
doi: 10.1016/0375-9474(91)90815-N
1991ZH28 Chin.J.Nucl.Phys. 13, No 4, 331 (1991) S.Zhu, L.Chaturvedi, J.H.Hamilton, A.V.Ramayya, C.Girit, J.Kormicki, X.W.Zhao, W.B.Gao, N.R.Johnson, I.Y.Lee, C.Baktash, F.K.McGowan, M.L.Halbert, M.Riley, M.O.Kortelahti, J.D.Cole High Spin States in 65Ga, 67Ga and Their Collective Behavior at High Angular Momenta NUCLEAR REACTIONS 46Ti(25Mg, 3n3p), (25Mg, n3p), E=68 MeV; measured γγ-coin, background subtraction. 65,67Ga deduced levels, J, π, band structure, collective features. In-beam γ-spectroscopy.
1990BA47 Nucl.Phys. A520, 555c (1990) C.Baktash, M.L.Halbert, D.C.Hensley, N.R.Johnson, I.Y.Lee, J.W.McConnell, F.K.McGowan Study of Spin-Temperature Efects using Energy-Ordered Continuum Gamma-Ray Spectroscopy Technique NUCLEAR REACTIONS 130Te(44Ca, 4n), E=195.5 MeV; measured γγ-energy correlation; deduced rotational damping vs spin temperature. 170Hf deduced collective E2, statistical E1, M1, M2 strength function.
doi: 10.1016/0375-9474(90)91174-P
1990CA22 Nucl.Phys. A513, 125 (1990) M.P.Carpenter, C.R.Bingham, L.H.Courtney, V.P.Janzen, A.J.Larabee, Z.-M.Liu, L.L.Riedinger, W.Schmitz, R.Bengtsson, T.Bengtsson, W.Nazarewicz, J.-Y.Zhang, J.K.Johansson, D.G.Popescu, J.C.Waddington, C.Baktash, M.L.Halbert, N.R.Johnson, I.Y.Lee, Y.S.Schutz, J.Nyberg, A.Johnson, R.Wyss, J.Dubuc, G.Kajrys, S.Monaro, S.Pilotte, K.Honkanen, D.G.Sarantites, D.R.Haenni Alignment Processes and Shape Variation in 184Pt NUCLEAR REACTIONS 154Sm(34S, 4n), E=163 MeV; 172Yb(16O, 4n), E=91 MeV; measured Eγ, Iγ, γ(θ), γγ-coin. 184Pt deduced levels, J, π, γ-branching. Enriched targets, array of Compton-suppression Ge detectors. Total routhian surface calculations.
doi: 10.1016/0375-9474(90)90346-N
1990DE44 Phys.Lett. 249B, 195 (1990) H.Dejbakhsh, T.M.Cormier, X.Zhao, A.V.Ramayya, L.Chaturvedi, S.Zhu, J.Kormicki, J.H.Hamilton, M.Satteson, I.Y.Lee, C.Baktash, F.K.McGowan, N.R.Johnson, J.D.Cole, E.F.Zganjar Signature of the Shape Coexistence in 72Kr: Discontinuities of the moment of inertia at low spin NUCLEAR REACTIONS 40Ca(35Cl, 2np), E=95 MeV; measured γγ-coin. 72Kr deduced levels, J, π, band structure, shape features.
doi: 10.1016/0370-2693(90)91242-4
1990NI10 Nucl.Phys. A520, 153c (1990) N.G.Nicolis, D.G.Sarantites, C.Baktash, V.Abenante, L.A.Adler, J.R.Beene, F.A.Dilmanian, G.Garcia-Bermudez, H.C.Griffin, M.L.Halbert, D.C.Hensley, N.R.Johnson, I.Y.Lee, Z.Majka, F.K.McGowan, M.A.Riley, T.M.Semkow, D.W.Stracener, A.Virtanen Alpha-Particle Emission as a Probe of Nuclear Shapes and Structure Effects in Proton Evaporation Spectra NUCLEAR REACTIONS 52Cr(34S, 2n2p), E=130 MeV; measured pγ-coin, proton spectra. 105Pd(32S, 2n2p), E=155 MeV; analyzed data; deduced shape, structure effects role.
doi: 10.1016/0375-9474(90)91143-F
1990NY02 Nucl.Phys. A511, 92 (1990) J.Nyberg, A.Johnson, M.P.Carpenter, C.R.Bingham, L.H.Courtney, V.P.Janzen, S.Juutinen, A.J.Larabee, Z.-M.Liu, L.L.Riedinger, C.Baktash, M.L.Halbert, N.R.Johnson, I.Y.Lee, Y.Schutz, J.C.Waddington, D.G.Popescu High-Spin States in 183Pt NUCLEAR REACTIONS 154Sm(34S, 5n), E=153 MeV; 170Yb(16O, 3n), E=81-84 MeV; measured Eγ, Iγ(θ), Iγ, γγ(t), γγ(X-ray)-coin. 183Pt deduced levels, J, π, δ. Enriched targets, Ge(Compton suppressed) detectors, 4π NaI(Tl) ball. Calculated experimental routhians, aligned angular momentum, signature splitting, total routhian surfaces.
doi: 10.1016/0375-9474(90)90028-K
1990SA04 J.Phys.(London) G16, L27 (1990) M.Satteson, A.V.Ramayya, T.M.Cormier, H.E.Gove, L.Chaturvedi, X.Zhao, J.Kormicki, J.H.Hamilton, E.F.Zganjar, I.Y.Lee, C.Baktash, F.K.McGowan, N.R.Johnson, J.D.Cole, H.Dejbakhsh Identification of Transitions in 73Kr and the Search for Large Oblate Deformation NUCLEAR REACTIONS 40Ca(35Cl, np), E=95 MeV; measured Eγ, Iγ, γγ-coin. 73Kr deduced levels, J, π, band structure.
doi: 10.1088/0954-3899/16/2/002
1990SA13 Phys.Rev.Lett. 64, 2129 (1990) D.G.Sarantites, C.Baktash, N.G.Nicolis, G.Garcia-Bermudez, V.Abenante, J.R.Beene, N.R.Johnson, M.L.Halbert, D.C.Hensley, F.K.McGowan, H.C.Griffin, I.Y.Lee, Z.Majka, M.A.Riley, T.M.Semkow, D.W.Stracener, A.Virtanen Nuclear-Structure Effects in Proton Evaporation Spectra NUCLEAR REACTIONS 52Cr(34S, 2n2p), E=130 MeV; measured pγ-coin, proton spectra, pγ(θ). 82Sr deduced rotational band role in proton evaporation spectra.
doi: 10.1103/PhysRevLett.64.2129
1989RI01 Phys.Rev. C39, 291 (1989) M.A.Riley, Y.A.Akovali, C.Baktash, M.L.Halbert, D.C.Hensley, N.R.Johnson, I.Y.Lee, F.K.McGowan, A.Virtanen, L.H.Courtney, V.P.Janzen, L.L.Riedinger, L.Chaturvedi, J.Simpson Irregularities at High Spin in the Odd-Odd Nucleus 158Tm NUCLEAR REACTIONS 110Pd(51V, 3n), E=220 MeV; measured E(γ), I(γ), γγ-coin, γγ(θ). 158Tm deduced levels, J, π, rotational band characteristics. Cranked shell model calculations comparison.
doi: 10.1103/PhysRevC.39.291
1989WE06 Phys.Rev. C40, 725 (1989) J.C.Wells, N.R.Johnson, C.Baktash, I.Y.Lee, F.K.McGowan, M.A.Riley, A.Virtanen, J.Dudek High-Spin Studies of 172,173Os: Complex alignment mechanism NUCLEAR REACTIONS 144Nd(32S, 4n), E=162 MeV; 144Nd(32S, 3n), E=155-162 MeV; measured Eγ, Iγ, γγ-coin, DCO ratios. 173,172Os deduced levels, J, π, band structure. Hartree-Fock-Bogoliubov cranking model.
doi: 10.1103/PhysRevC.40.725
1988FE01 Phys.Rev. C37, 101 (1988) M.P.Fewell, N.R.Johnson, F.K.McGowan, J.S.Hattula, I.Y.Lee, C.Baktash, Y.Schutz, J.C.Wells, L.L.Riedinger, M.W.Guidry, S.C.Pancholi Lifetimes of Yrast and Near-Yrast States of 159,160,161Yb NUCLEAR REACTIONS 116Cd(48Ti, xn), E=205 MeV; 48Ti(116Cd, xn), E=495 MeV; measured Eγ, Iγ, total energy spectra, recoil distance. 159,160,161Yb deduced levels, J, π, sidefeeding Iγ, transition quadrupole moments, band structure.
doi: 10.1103/PhysRevC.37.101
1988MC04 Phys.Rev.Lett. 61, 2818 (1988) F.K.McGowan, N.R.Johnson, I.Y.Lee, C.Baktash McGowan et al Reply NUCLEAR STRUCTURE 172W; analyzed collectivity features.
doi: 10.1103/PhysRevLett.61.2818
1987LE01 Phys.Rev. C35, 605 (1987) I.Y.Lee, C.Baktash, J.R.Beene, M.P.Fewell, M.L.Halbert, N.R.Johnson, F.K.McGowan, W.T.Milner, H.J.Kim, R.O.Sayer, D.G.Sarantites Distributions of the Total Energy and Multiplicity of Gamma Rays feeding the Discrete Yrast States in Heavy-Ion-Induced Fusion Reactions NUCLEAR REACTIONS 150Sm(12C, 4n), (12C, 3n), E=65 MeV; 100Mo(34S, 4n), E=144 MeV; 70Zn(50Ti, 4n), (50Ti, 3n), E=170 MeV; measured γ-multiplicities, total energy distributions. 158,159Er, 130Ce, 116,117Te deduced entry state distribution width vs yrast transition spin. Ge, NaI detectors, spin spectrometer.
doi: 10.1103/PhysRevC.35.605
1987MC01 Phys.Rev. C35, 968 (1987) F.K.McGowan, N.R.Johnson, I.Y.Lee, W.T.Milner, C.Roulet, R.M.Diamond, F.S.Stephens, M.W.Guidry Test of the Triaxial Rotor Model and the Interacting Boson-Fermion Approximation Model Description of Collective States in 193Ir NUCLEAR REACTIONS 191,193Ir(40Ar, 40Ar'), E=160 MeV; 191,193Ir(136Xe, 136Xe'), E=617 MeV; measured Eγ, Iγ, relative γ-ray yields following Coulomb excitation. 191,193Ir deduced levels, J, π, K, B(E2). Enriched targets, parallel plate avalanche counters.
doi: 10.1103/PhysRevC.35.968
1987SC01 Phys.Rev. C35, 348 (1987) Y.Schutz, C.Baktash, I.Y.Lee, M.L.Halbert, D.C.Hensley, N.R.Johnson, M.Oshima, R.Ribas, J.C.Lisle, L.Adler, K.Honkanen, D.G.Sarantites, A.J.Larabee, J.X.Saladin Search for Superdeformed Shapes in 144Gd RADIOACTIVITY 144Gd(EC), (IT) [from 120Sn(28Si, 4n), E=145 MeV]; measured γγ-transition energy correlation; deduced moment of inertia, shape characteristics, no evidence for superdeformation. Germaniaum detectors.
doi: 10.1103/PhysRevC.35.348
1987WE06 Phys.Rev. C36, 431 (1987) J.C.Wells, N.R.Johnson, C.Baktash, I.Y.Lee, F.K.McGowan, M.N.Rao, L.L.Riedinger, V.Janzen, W.C.Ma, Shuxian Wen, Ze-Min Chen, P.B.Semmes, G.A.Leander, Y.S.Chen Low-Frequency Anomaly in 172Os Moment of Inertia NUCLEAR STRUCTURE 172Os; calculated dynamical moments of inertia. Cranked shell model, three-band-mixing calculations. NUCLEAR REACTIONS 144Nd(32S, 4n), E=162 MeV; measured Eγ, Iγ, γγ-coin. 172Os deduced levels, yrast sequence moments of inertia, J, π. Cranked shell model, three-band mixing calculations.
doi: 10.1103/PhysRevC.36.431
1986MC01 Phys.Rev. C33, 855 (1986) F.K.McGowan, N.R.Johnson, I.Y.Lee, W.T.Milner, C.Roulet, J.Hattula, M.P.Fewell, Y.A.Ellis-Akovali, R.M.Diamond, F.S.Stephens, M.W.Guidry Test of the Triaxial Rotor Model and the Interacting Boson Fermion Approximation Model Description of Collective States in 191Ir NUCLEAR REACTIONS 191Ir(40Ar, 40Ar'), E=160 MeV; 191Ir(136Xe, 136Xe'), E=617 MeV; measured Eγ, Iγ(θ) following Coulomb excitation. 191Ir deduced levels, J, π, B(λ).
doi: 10.1103/PhysRevC.33.855
1986OS02 Phys.Rev. C33, 1988 (1986) M.Oshima, N.R.Johnson, F.K.McGowan, C.Baktash, I.Y.Lee, Y.Schutz, R.V.Ribas, J.C.Wells Evolving Collectivity at High Spins in 157Er, 158Er, and 159Er NUCLEAR REACTIONS 128Te(34S, xn), E=155 MeV; measured Eγ, Iγ, γγ-coin, Doppler shift recoil distance method. 157,158,159Er deduced levels, J, π, γ-branching, T1/2, transition quadrupole moments, yrast bands.
doi: 10.1103/PhysRevC.33.1988
1986RA07 Phys.Rev.Lett. 57, 667 (1986) M.N.Rao, N.R.Johnson, F.K.McGowan, I.Y.Lee, C.Baktash, M.Oshima, J.W.McConnell, J.C.Wells, A.Larabee, L.L.Riedinger, R.Bengtsson, Z.Xing, Y.S.Chen, P.B.Semmes, G.A.Leander Loss of Collectivity at High Spin in 172W and a Three-Band Interpretation of First Yrast Upbends NUCLEAR REACTIONS 124Sn(52Cr, 4n), E=230 MeV; measured γγ-coin, Doppler shift recoil distance. 172W deduced levels, J, π, T1/2, yrast sequence, dynamical moment of inertia, configuration, transition quadrupole moments.
doi: 10.1103/PhysRevLett.57.667
1986SE07 Phys.Rev. C34, 523 (1986) T.M.Semkow, D.G.Sarantites, K.Honkanen, V.Abenante, L.A.Adler, C.Baktash, N.R.Johnson, I.Y.Lee, M.Oshima, Y.Schutz, Y.S.Chen, J.X.Saladin, C.Y.Chen, O.Dietzsch, A.J.Larabee, L.L.Riedinger, H.C.Griffin Spectroscopic Study of the High-Spin States in 135Pr NUCLEAR STRUCTURE 135Pr; calculated levels, alignments, crossing frequencies. Cranked shell model. NUCLEAR REACTIONS 120Sn(19F, 4n), E=91 MeV; measured Eγ, Iγ, γγ(θ). 135Pr deduced levels, J, π, alignments, crossing frequencies, signature splittings, γ-deformation parameter. Cranked shell model comparison.
doi: 10.1103/PhysRevC.34.523
1985BA06 Phys.Rev.Lett. 54, 978 (1985) C.Baktash, Y.Schutz, I.Y.Lee, F.K.McGowan, N.R.Johnson, M.L.Halbert, D.C.Hensley, M.P.Fewell, L.Courtney, A.J.Larabee, L.L.Riedinger, A.W.Sunyar, E.der Mateosian, O.C.Kistner, D.G.Sarantites Quasivibrational Bands at High Spins in 158Yb NUCLEAR REACTIONS 98Mo(64Ni, 4n), E=285 MeV; 144Sm(18O, 4n), E=100 MeV; 142Nd(20Ne, 4n), E=115 MeV; measured γγ-coin, γγ(θ), γ(θ). 158Yb deduced levels, J, π, γ-branching, moment of inertia, band structure.
doi: 10.1103/PhysRevLett.54.978
1985CA12 Phys.Rev. C31, 1049 (1985) J.L.S.Carvalho, F.M.Bernthal, R.M.Ronningen, N.R.Johnson, J.S.Hattula, I.Y.Lee, M.P.Fewell, L.L.Riedinger, J.C.Wells High Spin States in 128Ce NUCLEAR REACTIONS 112Cd(20Ne, 4n), E=103 MeV; measured γγ-coin, γ(θ). 128Ce deduced levels, J, π, γ-branching, backbending plots. Compared with theory.
doi: 10.1103/PhysRevC.31.1049
1985FE02 Phys.Rev. C31, 1057 (1985) M.P.Fewell, N.R.Johnson, F.K.McGowan, J.S.Hattula, I.Y.Lee, C.Baktash, Y.Schutz, J.C.Wells, L.L.Riedinger, M.W.Guidry, S.C.Pancholi Collectivity of 160,161Yb at High Spin NUCLEAR REACTIONS 116Cd(48Ti, xn), 48Ti(116Cd, xn), E(cm)=145 MeV; measured γ-spectra, recoil distance. 160,161Yb levels deduced T1/2, γ-branching, quadrupole moments, yrast sequence, quasiparticle alignment role, induced triaxiality.
doi: 10.1103/PhysRevC.31.1057
1984GU22 Nucl.Phys. A430, 485 (1984) M.W.Guidry, R.E.Neese, C.R.Bingham, L.L.Riedinger, J.A.Vrba, I.Y.Lee, N.R.Johnson, G.R.Satchler, P.A.Butler, R.Donangelo, J.O.Rasmussen, D.L.Hillis, H.H.Kluge Heavy-Ion Inelastic Scattering from Deformed Nuclei NUCLEAR REACTIONS 162Dy(16O, 16O'), E=50-68 MeV; 232Th(86Kr, 86Kr'), E=350-450 MeV; 160Gd(40Ar, 40Ar'), E=100-170 MeV; 162Dy(40Ar, 40Ar'), E=120-170 MeV; 180Hf(40Ar, 40Ar'), E=135-175 MeV; 156Gd, 164Dy(40Ar, 40Ar'), E=120-160 MeV; measured γ(particle)-coin, σ(E); deduced ion-ion potentials. Gamma spectroscopy. Classical limit.
doi: 10.1016/0375-9474(84)90050-2
1984LA11 Phys.Rev. C29, 1934 (1984) A.J.Larabee, L.H.Courtney, S.Frauendorf, L.L.Riedinger, J.C.Waddington, M.P.Fewell, N.R.Johnson, I.Y.Lee, F.K.McGowan Shape Effects in h11/2 and g7/2 Bands in 159Tm NUCLEAR REACTIONS 148Sm(14N, 3n), 141Pr(22Ne, 4n), E not given; measured γγ-, γγγ-coin, γ(θ), γγ(θ). 159Tm deduced levels, J, π, γ-branching, B(λ) ratios, rotational band structure, δ, backbend characteristics, configuration.
doi: 10.1103/PhysRevC.29.1934
1984WE17 Phys.Rev. C30, 1532 (1984) J.C.Wells, N.R.Johnson, J.Hattula, M.P.Fewell, D.R.Haenni, I.Y.Lee, F.K.McGowan, J.W.Johnson, L.L.Riedinger Evidence for Collective Behavior in 128Ce from Lifetime Measurements NUCLEAR REACTIONS 92Zr(40Ar, 4n), E=159 MeV; measured Eγ, Iγ, γ(t), Doppler shift, recoil. 128Ce deduced yrast level T1/2, J, π, band characteristics, B(E2). Cranked self-consistent theory.
doi: 10.1103/PhysRevC.30.1532
1982JO04 Phys.Rev. C26, 1004 (1982) N.R.Johnson, I.Y.Lee, F.K.McGowan, T.T.Sugihara, S.W.Yates, M.W.Guidry Lifetimes of States in the Transitional Nucleus 152Gd NUCLEAR REACTIONS 152Gd(40Ar, 40Ar'), E=147.2 MeV; measured Coulomb excitation, DSA, recoil. 152Gd levels deduced T1/2, B(E2).
doi: 10.1103/PhysRevC.26.1004
1982LE07 Phys.Rev. C25, 1865 (1982) I.Y.Lee, N.R.Johnson, F.K.McGowan, R.L.Robinson, M.W.Guidry, L.L.Riedinger, S.W.Yates Structure of Multiphonon Vibrational States in 108,110Pd NUCLEAR REACTIONS 108,110Pd(40Ar, 40Ar'), E=120, 129.1 MeV; measured Eγ, Iγ, γ-yields, Coulomb excitation, γ(θ). 108,110Pd deduced levels, γ-branching, B(E2), multiphonon vibrational character. Boson expansion, interacting boson model.
doi: 10.1103/PhysRevC.25.1865
1981LE11 Phys.Rev. C24, 293 (1981) I.Y.Lee, N.R.Johnson, F.K.McGowan, G.R.Young, M.W.Guidry, S.W.Yates Isomeric and High-Spin States of 94Tc and the Search for Yrast Isomers near N ≈ 50 NUCLEAR REACTIONS 76Ge, 78Se(20Ne, xnyp), E=80.9 MeV; 89Y, 93Nb(10B, xnyp), E=52, 58.4, 62.8 MeV; measured Eγ, Iγ, γγ-, γ(X-ray)-coin, γγ(t). 94Tc deduced levels, isomer T1/2, yrast transition sequence.
doi: 10.1103/PhysRevC.24.293
1980HJ01 Phys.Rev.Lett. 45, 878 (1980) S.A.Hjorth, I.Y.Lee, J.R.Beene, C.Roulet, D.R.Haenni, N.R.Johnson, F.E.Obenshain, G.R.Young Interpretation of the 21-ns Isomer in 190Hg as (νi13/2)2 from a g-Factor Measurement NUCLEAR REACTIONS 181Ta(14N, 5n), E=94 MeV; measured Iγ(θ, H, t). 190Hg level deduced g, configuration, T1/2. Shell model.
doi: 10.1103/PhysRevLett.45.878
1980JO08 Phys.Rev. C22, 2416 (1980) N.R.Johnson, M.W.Guidry, R.J.Sturm, E.Eichler, R.O.Sayer, D.C.Hensley, N.C.Singhal Lifetimes of Rotational States in 154Sm NUCLEAR REACTIONS 154Sm(40Ar, 40Ar'), E=146, 153 MeV; measured Doppler shift, recoil, Coulomb excitation, Eγ, Iγ. 154Sm levels deduced T1/2, B(E2). Ridid rotor model.
doi: 10.1103/PhysRevC.22.2416
1980YA03 Phys.Rev. C21, 2366 (1980) S.W.Yates, I.Y.Lee, N.R.Johnson, E.Eichler, L.L.Riedinger, M.W.Guidry, A.C.Kahler, D.Cline, R.S.Simon, P.A.Butler, P.Colombani, F.S.Stephens, R.M.Diamond, R.M.Ronningen, R.D.Hichwa, J.H.Hamilton, E.L.Robinson High-Spin Properties of 164Er in the Multiple Band Crossing Region NUCLEAR REACTIONS 150Nd(18O, 4n), E=69.6 MeV; 164Dy(α, 4n), E=51 MeV; 164Er(136Xe, 136Xe'γ), E=547, 612, 620 MeV; measured Eγ, Iγ, γγ-coin, Doppler-broadened lineshapes, multiple Coulomb excitation probabilities. 164Er deduced levels, J, π, T1/2, B(E2). Two quasiparticle plus rotor model.
doi: 10.1103/PhysRevC.21.2366
1979GU15 Phys.Rev. C20, 1814 (1979) M.W.Guidry, I.Y.Lee, N.R.Johnson, P.A.Butler, D.Cline, P.Colombani, R.M.Diamond, F.S.Stephens Reduced Transition Probabilities and Energies of High-Spin States in 162Dy NUCLEAR REACTIONS 162Dy(136Xe, 136Xe'), E(lab)=547, 612 MeV; measured T1/2, Eγ. 162Dy levels deduced B(E2).
doi: 10.1103/PhysRevC.20.1814
1979HU01 Nucl.Phys. A321, 213 (1979) P.Hubert, C.Roulet, H.Sergolle, P.Colombani, J.M.Lagrange, J.Vanhorenbeeck, N.R.Johnson Coulomb Excitation Study of 182,184,186W Isotopes NUCLEAR REACTIONS 182,184,186W(84Kr, 84Kr'γ), E=340 MeV; measured Coulomb excitation yields. 182,184,186W deduced energy levels, B(E2).
doi: 10.1016/0375-9474(79)90694-8
1978GU03 Phys.Rev.Lett. 40, 1016 (1978) M.W.Guidry, P.A.Butler, R.Donangelo, E.Grosse, Y.El Masri, L.Y.Lee, F.S.Stephens, R.M.Diamond, L.L.Riedinger, C.R.Bingham, A.C.Kahler, J.A.Vrba, E.L.Robinson, N.R.Johnson Coulomb-Nuclear Interference for High-Spin States Excited by 86Kr, 40Ar, and 16O Projectiles NUCLEAR REACTIONS 232Th(86Kr, 86Kr'γ), E=350-450 MeV; 238U(40Ar, 40Ar'γ), E=140-220 MeV; 162Dy(16O, 16O'γ), E=50-70 MeV; measured HI γ-coin; deduced Coulomb-nuclear interference.
doi: 10.1103/PhysRevLett.40.1016
1978HU03 Phys.Rev. C17, 622 (1978) P.Hubert, N.R.Johnson, E.Eichler Lifetime Measurements and Multiple Coulomb Excitation in 162Dy NUCLEAR REACTIONS 162Dy(40Ar, 40Ar'γ), E=148.6 MeV; measured recoil distance DSA, Coulomb excitation. 162Dy levels deduced T1/2, B(E2).
doi: 10.1103/PhysRevC.17.622
1978JO02 Phys.Rev.Lett. 40, 151 (1978) N.R.Johnson, D.Cline, S.W.Yates, F.S.Stephens, L.L.Riedinger, R.M.Ronningen Multiple Band Crossings in 164Er NUCLEAR REACTIONS 150Nd(18O, 4nγ), E=70 MeV; measured Eγ, Iγ, γγ-coin. 164Er deduced levels, J, π, K.
doi: 10.1103/PhysRevLett.40.151
1978KA06 Phys.Lett. 72B, 443 (1978) A.C.Kahler, L.L.Riedinger, N.R.Johnson, R.L.Robinson, E.F.Zganjar, A.Visvanathan, D.R.Zolnowski, M.B.Hughes, T.T.Sugihara Contrasting Behavior of h9/2 and i13/2 Bands in 185Au NUCLEAR REACTIONS 169Tm(20Ne, 4nγ), E=98, 103 MeV; 175Lu(16O, 6nγ), E=113 MeV; measured γγ(t), γ(θ), I(ce). 185Au deduced levels, K, J, π.
doi: 10.1016/0370-2693(78)90729-3
1978SA03 Phys.Rev. C17, 1026 (1978) R.O.Sayer, E.Eichler, N.C.Singhal, R.Sturm, N.R.Johnson, M.W.Guidry Recoil-Distance Measurement of Lifetimes of Rotational States in 164Dy NUCLEAR REACTIONS 164Dy(40Ar, 40Ar'), E=152.6 MeV; measured Eγ, recoil distance DSA. 164Dy levels deduced T1/2, B(E2).
doi: 10.1103/PhysRevC.17.1026
1978SI12 ATOMKI Kozlem. 20, 207 (1978) N.C.Singhal, R.O.Sayer, J.H.Hamilton, A.V.Ramayya, W.T.Milner, R.L.Robinson, N.R.Johnson, G.J.Smith Recoil Distance Lifetime Measurements in 72Se NUCLEAR REACTIONS 58Ni(16O, 2p), E=44-46 MeV; measured DSA. 72Se yrast levels deduced T1/2, B(E2), rms deformation β2.
1978YA02 Phys.Rev. C17, 634 (1978) S.W.Yates, N.R.Johnson, L.L.Riedinger, A.C.Kahler Lifetimes of Ground-Band States in 150Nd NUCLEAR REACTIONS 150Nd(40Ar, 40Ar'γ), E=149 MeV; measured recoil distance DSA, Coulomb excitation. 150Nd levels deduced T1/2, B(E2).
doi: 10.1103/PhysRevC.17.634
1977JO05 Phys.Rev. C15, 1325 (1977) N.R.Johnson, P.P.Hubert, E.Eichler, D.G.Sarantites, J.Urbon, S.W.Yates, T.Lindblad Lifetimes of Ground-Band States in 192Pt and 194Pt NUCLEAR REACTIONS 192,194Pt(40Ar, 40Ar'γ), E=149 MeV; measured Coulomb excitation, Doppler shift recoil distance. 192,194Pt levels deduced T1/2, B(E2).
doi: 10.1103/PhysRevC.15.1325
1976GU06 Phys.Rev. C13, 1164 (1976) M.W.Guidry, R.J.Sturm, N.R.Johnson, E.Eichler, G.D.O'Kelley, N.C.Singhal, R.O.Sayer Recoil Distance Lifetimes of Rotational States in 236U NUCLEAR REACTIONS 236U(40Ar, 40Ar'γ), E=153, 155 MeV; measured Coulomb excitation. 236U levels deduced T1/2, B(E2), quadrupole moment.
doi: 10.1103/PhysRevC.13.1164
1976GU12 Nucl.Phys. A266, 228 (1976) M.W.Guidry, P.A.Butler, P.Colombani, I.Y.Lee, D.Ward, R.M.Diamond, E.Eichler, N.R.Johnson, R.Sturm Reduced Transition Probabilities for High-Spin States in 232Th NUCLEAR REACTIONS 232Th(84Kr, 84Kr'γ), E=385 MeV; 232Th(136Xe, 136Xe'γ), E=595, 623 MeV; measured recoil distance, Doppler broadened lineshape, Coulomb excitation yields. 232Th 6+-18+ levels deduced T1/2, B(E2). Results compared with theory.
doi: 10.1016/0375-9474(76)90292-X
1976LE18 Phys.Rev.Lett. 37, 420 (1976) I.Y.Lee, D.Cline, R.S.Simon, P.A.Butler, P.Colombani, M.W.Guidry, F.S.Stephens, R.M.Diamond, N.R.Johnson, E.Eichler Coulomb Excitation into the Backbend Region of 164Er NUCLEAR REACTIONS 164Er(136Xe, 136Xe'γ), E=612, 547 MeV; measured multiple Coulomb excitation, 136Xe'γ-coin. 164Dy(α, 4n), E=51 MeV; measured Eγ, Iγ, γγ-coin. 164Er levels deduced B(E2), backbending.
doi: 10.1103/PhysRevLett.37.420
1976SA23 Phys.Rev. C14, 2138 (1976) D.G.Sarantites, J.H.Barker, M.L.Halbert, D.C.Hensley, R.A.Dayras, E.Eichler, N.R.Johnson, S.A.Gronemeyer Gamma-Ray Multiplicities in Evaporation Residues Formed in Bombardments of 150Nd by 20Ne NUCLEAR REACTIONS 150Nd(20Ne, xnγ), (20Ne, xnαγ), E=127.7-172.4 MeV; measured σ(E, Eγ), γ-ray multiplicities; deduced J-distributions in evaporation residues. Enriched target.
doi: 10.1103/PhysRevC.14.2138
1976SA28 Nucl.Phys. A273, 61 (1976) K.S.R.Sastry, A.V.Ramayya, R.S.Lee, J.H.Hamilton, R.L.Mlekodaj, N.R.Johnson Gyromagnetic Ratio of the First 2+ Excited State in 126Xe RADIOACTIVITY 126I; measured γγ(θ, H, t) implanted in Fe. 126Xe level deduced g-factor.
doi: 10.1016/0375-9474(76)90300-6
1976YA11 J.Phys.Soc.Jap. 41, 1843 (1976) H.Yamada, T.Katoh, M.Fujioka, M.Sekikawa, S.H.Ahn, J.H.Hamilton, N.R.Johnson, J.J.Pinajian Electric Monopole Transitions from Excited 0+ States in 156Gd RADIOACTIVITY 156Eu; measured Eγ, E(ce), I(ce), T1/2; deduced ICC. 156Gd deduced levels, J, π, λ. Enriched target.
doi: 10.1143/JPSJ.41.1843
1975GU21 Phys.Rev. C12, 1937 (1975) M.W.Guidry, E.Eichler, N.R.Johnson, G.D.O'Kelley, R.J.Sturm, R.O.Sayer Sign of the E4 Moment in 236U by Multiple Coulomb Excitation with 40Ar Ions NUCLEAR REACTIONS 236U(40Ar, 40Ar'), E=145.8, 152.4 MeV; measured multiple coulomb excitation. 236U levels deduced M(E4), sign of E4 moment.
doi: 10.1103/PhysRevC.12.1937
1975JO07 Phys.Rev. C12, 1927 (1975) N.R.Johnson, R.J.Sturm, E.Eichler, M.W.Guidry, G.D.O'Kelley, R.O.Sayer, D.C.Hensley, N.C.Singhal, J.H.Hamilton Lifetimes of Rotational States in 232Th NUCLEAR REACTIONS 232Th(40Ar, 40Ar'γ), E=152 MeV; measured recoil-distance DSA, 40Ar'γ-coin. 232Th levels deduced T1/2, B(E2). Coulomb excitation.
doi: 10.1103/PhysRevC.12.1927
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