NSR Query Results
Output year order : Descending NSR database version of March 21, 2024. Search: Author = R.R.Chasman Found 74 matches. 2015AH04 Phys.Rev. C 92, 024313 (2015) I.Ahmad, R.R.Chasman, J.P.Greene, F.G.Kondev, S.Zhu Electron capture decay of 58-min 22992U and levels in 22991Pa RADIOACTIVITY 229U(EC)[from 229Th(α, 4n) and 230Th(3He, 4n)]; measured Eγ, Iγ, E(x ray), I(x ray), E(ce), I(ce), γ(x ray)-, γγ-coin, half-life of 229U ground state. 229Pa; deduced levels, J, π, conversion coefficients, multipolarity, EC feedings, logft, Nilsson configurations. Discussed splitting of 5/2+ and 5/2- doublet and signature of octupole deformation. Comparison with shell-model calculations of level structure in 229,231Pa. 225Th, 221Ra(α)[from 229U -> 225Th α decay chain]; measured Eγ, Iγ, E(ce), I(ce). 217Rn, 221Ra; deduced levels, conversion coefficients, multipolarity.
doi: 10.1103/PhysRevC.92.024313
2009AH03 Phys.Rev. C 80, 064315 (2009) Neutron single-particle states above the N=164 subshell in 98251Cf and 96249Cm studied by neutron transfer reactions NUCLEAR REACTIONS 248Cm(α, 3He), E=98.5 MeV; 250Cf(d, p), E=12 MeV; analyzed 3He and proton spectra and σ(θ) from earlier experiments using DWBA. 249Cm, 251Cf; deduced levels, J, π, and configurations; calculated neutron single-particle energies using Woods-Saxon single-particle potential.
doi: 10.1103/PhysRevC.80.064315
2007CH61 Phys.Rev.Lett. 99, 082501 (2007) n-p Pairing, Wigner Energy, and Shell Gaps NUCLEAR STRUCTURE 12C, 16O, 28Si, 32S, 56Ni; calculated correlation energy ratios and shell gaps.
doi: 10.1103/PhysRevLett.99.082501
2005AH03 Phys.Rev. C 71, 054305 (2005) I.Ahmad, F.G.Kondev, E.F.Moore, M.P.Carpenter, R.R.Chasman, J.P.Greene, R.V.F.Janssens, T.Lauritsen, C.J.Lister, D.Seweryniak, R.W.Hoff, J.E.Evans, R.W.Lougheed, C.E.Porter, L.K.Felker Energy levels of 249Bk populated in the α decay of 25399Es and β- decay of 24996Cm RADIOACTIVITY 253Es(α); measured Eα, Eγ, γγ-, αγ-coin. 249Cm(β-) [from 248Cm(n, γ)]; measured Eγ, Iγ. 249Bk deduced levels, J, π, configurations, B(λ), g factors. 253Es(SF); measured Eγ, Iγ from fission fragment decay; deduced fission branching ratio. Gammasphere array, comparisons with model predictions.
doi: 10.1103/PhysRevC.71.054305
2005AH09 Phys.Rev. C 72, 054308 (2005) I.Ahmad, J.P.Greene, E.F.Moore, F.G.Kondev, R.R.Chasman, C.E.Porter, L.K.Felker Energy levels of 251Cf populated in the α decay of 255100Fm and EC decay of 25199Es RADIOACTIVITY 255Fm(α); measured Eγ, Iγ. 251Es(EC); measured Eγ, Iγ, E(ce), I(ce). 251Cf deduced levels, J, π, configurations, vibrational states.
doi: 10.1103/PhysRevC.72.054308
2005CH78 Phys.Rev.Lett. 95, 262501 (2005) Variational Approach to Configuration Interaction
doi: 10.1103/PhysRevLett.95.262501
2003AH07 Phys.Rev. C 68, 044306 (2003) I.Ahmad, R.R.Chasman, J.P.Greene, F.G.Kondev, E.F.Moore, E.Browne, C.E.Porter, L.K.Felker Energy level of 247Cm populated in the α decay of 25198Cf RADIOACTIVITY 251Cf(α); measured Eα, Eγ, E(ce), αγ-coin; deduced hindrance factors. 247Cm deduced levels, J, π, T1/2, octupole mixing. Comparison with model predictions.
doi: 10.1103/PhysRevC.68.044306
2003CH02 Phys.Lett. B 553, 204 (2003) Effects of n-p pairing on nuclear structure
doi: 10.1016/S0370-2693(02)03226-4
2003CH77 Phys.Lett. B 577, 47 (2003) n-p Pairing-diagonal matrix elements; Wigner energy, symmetry energy and spectroscopy NUCLEAR STRUCTURE A=60-64; calculated energy levels, neutron-proton pairing effects, role of diagonal matrix elements.
doi: 10.1016/j.physletb.2003.10.014
2002CH01 Phys.Lett. 524B, 81 (2002) N-P Pairing in Nuclei NUCLEAR STRUCTURE A=60-66; calculated variational wavefunctions, levels, correlation energies, neutron-proton pairing features.
doi: 10.1016/S0370-2693(01)01364-8
2001CH51 Phys.Rev. C64, 024311 (2001) Very Extended Nuclear Shapes Near A = 100 NUCLEAR STRUCTURE 100,102,104Zr, 100,102,104,106Mo, 100,102,104,106,108,110,112Ru, 102,104,106,108,110,112,114Pd, 106,108,110,112,114Cd, 110,112,114,116Sn, 114,116,118,120Te, 118,120,122Xe; calculated high-spin states deformation. Cranked Strutinsky method.
doi: 10.1103/PhysRevC.64.024311
2001CH54 Phys.Lett. 513B, 325 (2001) R.R.Chasman, J.L.Egido, L.M.Robledo Persistence of Deformed Shapes in the Neutron-Deficient Pb Region NUCLEAR STRUCTURE 182,184,186,188,190Pb; calculated 0+ states energy, quadrupole moments, deformation features. HFB method with Gogny interaction, many-body method with phenomenological interaction.
doi: 10.1016/S0370-2693(01)00382-3
2000AH02 Phys.Rev. C61, 044301 (2000) I.Ahmad, R.R.Chasman, P.R.Fields Spectroscopic Studies Beyond the N = 152 Neutron Gap: Decay of 101255Md and 101256Md RADIOACTIVITY 255,256Md(EC), (α) [from 253Es(α, xn)]; measured Eα, Iα, Eγ, Iγ, αγ-coin, X-ray spectra. 255Md deduced ground state J, π. 255,256Fm, 251Es deduced levels, J, π, configurations. Comparisons with mean-field calculations.
doi: 10.1103/PhysRevC.61.044301
2000AH09 Phys.Rev. C62, 064302 (2000) I.Ahmad, M.P.Carpenter, R.R.Chasman, J.P.Greene, R.V.F.Janssens, T.L.Khoo, F.G.Kondev, T.Lauritsen, C.J.Lister, P.Reiter, D.Seweryniak, A.Sonzogni, J.Uusitalo, I.Wiedenhover, P.Bhattacharyya Energy Levels in 98251Cf Populated in the α Decay of 100255Fm RADIOACTIVITY 255Fm(α); measured Eγ, Iγ, (X-ray)γ-, γγ-coin. 251Cf deduced levels, J, π, configurations. Gammasphere array, comparisons with model predictions.
doi: 10.1103/PhysRevC.62.064302
1999AH01 Nucl.Phys. A646, 175 (1999) I.Ahmad, B.B.Back, R.R.Chasman, J.P.Greene, T.Ishii, L.R.Morss, G.P.A.Berg, A.D.Bacher, C.C.Foster, W.R.Lozowski, W.Schmitt, E.J.Stephenson, T.Yamanaka Possible Observation of the 1/2+[880] Orbital in 96249Cm NUCLEAR REACTIONS 248Cm, 232Th, 208Pb(α, 3He), E=98.5 MeV; measured σ(E, θ). 249Cm deduced levels, J, π.
doi: 10.1016/S0375-9474(98)00618-6
1998CH16 Phys.Rev.Lett. 80, 4610 (1998) Comment on ' Spins, Parity, Excitation Energies, and Octupole Structure of an Excited Superdeformed Band in 194Hg and Implications for Identical Bands ' NUCLEAR STRUCTURE 194Hg; calculated superdeformed band configuration. Disagreement with previous interpretation.
doi: 10.1103/PhysRevLett.80.4610
1997CH06 Phys.Lett. 392B, 255 (1997) Nuclear Structure at A ∼ 250 and the Stability of the Superheavy Elements NUCLEAR STRUCTURE Z=96-103; N=148-157; calculated Q(α). Z=110-124; N=150-184; calculated deformations at minima. Z=112-124; N=160-186; calculated α-decay T1/2. 255Md deduced J, Nilsson assignment. Woods-Saxon potential extrapolated superheavy region.
doi: 10.1016/S0370-2693(96)01591-2
1997EG01 Phys.Lett. 393B, 13 (1997) J.L.Egido, L.M.Robledo, R.R.Chasman Nuclear Shapes in 176W with Density Dependent Forces: From ground state to fission NUCLEAR STRUCTURE 176W; calculated energy surface. HPB, density-dependent forces.
doi: 10.1016/S0370-2693(96)01602-4
1996FI08 Phys.Rev. C54, R2806 (1996) S.M.Fischer, R.V.F.Janssens, M.A.Riley, R.R.Chasman, I.Ahmad, D.J.Blumenthal, T.B.Brown, M.P.Carpenter, G.Hackman, D.J.Hartley, T.L.Khoo, T.Lauritsen, W.C.Ma, D.Nisius, J.Simpson, P.G.Varmette Superdeformed Band in 155Dy: Where does the ' island ' of superdeformation end ( Question ) NUCLEAR REACTIONS 124Sn(36S, 5n), E=175 MeV; measured Eγ, (γγγ)-coin, Iγ, DSA. 155Dy deduced superdeformed band, dynamic moment of inertia, quadrupole moment, configuration, deformation from T1/2 analysis.
doi: 10.1103/PhysRevC.54.R2806
1995CH37 Phys.Lett. 351B, 18 (1995) Octupole Deformations in the Very Extended Nuclear Shapes of the ∼ 180 Region NUCLEAR STRUCTURE 168,170,172,174,176,178,180,182,184Yb, 170,172,174,176,178,180,182,184,186Hf, 172,174,176,178,180,182,184,186,188W, 174,176,178,180,182,184,186,188,190Os, 176,178,180,182,184,186,188,190,192Pt, 178,180,182,184,186,188,190,192,194Hg, 180,182,184,186,188,190,192,194,196Pb, 182,184,186,188,190,192,194,196,198Po; calculated octupole deformation energy lowering. Four dimensional deformation space, quadrupole, octupole, hexadecapole, necking deformations.
doi: 10.1016/0370-2693(95)00327-H
1995CH67 Phys.Lett. 364B, 137 (1995) Very Extended Shapes in the A ≈ 156 Mass Region NUCLEAR STRUCTURE 158Er, 152Dy; calculated energy surface. 151,152,153Eu, 145,146,152,153,154Gd; 146,147,153,154,155,156Tb, 146,147,152,153,154,155Dy; calculated extended minima properties. 156Ho; calculated nucleon levels vs cranking frequency. Discussed hyperdeformation related features, 4D-deformation space.
doi: 10.1016/0370-2693(95)01257-5
1994EG02 Phys.Lett. 322B, 22 (1994) J.L.Egido, L.M.Robledo, R.R.Chasman High Spin Shapes in 182Os with Density Dependent Forces NUCLEAR STRUCTURE 182Os; calculated potential energy, neutron, proton pairing energy vs quadrupole moment, shape density; deduced axis ratios for shape minima.
doi: 10.1016/0370-2693(94)90485-5
1993CH08 Phys.Lett. 302B, 134 (1993) Very Extended Minima in the A = 180 Mass Region NUCLEAR STRUCTURE Z=70-82; N=96-112; calculated model properties at yrast point. 182Os; calculated energy surface; deduced minima. Cranked Strutinsky procedure.
doi: 10.1016/0370-2693(93)90372-O
1993CH47 Phys.Lett. 319B, 41 (1993) Configuration Interaction Effects in Rotational Bands of Superdeformed Nuclei NUCLEAR STRUCTURE 192Hg; calculated superdeformed band neutron, proton pairing, transition energies. Cranking Hamiltonian with pairing.
doi: 10.1016/0370-2693(93)90778-G
1992CH20 Phys.Lett. 280B, 187 (1992) The Fermion Dynamic Symmetry Model and Superdeformation Near A = 220 NUCLEAR STRUCTURE 222,223,224Fr, 222,223,224,225Ra, 222,223,224,225,226Ac, 223,224,225,226,227Th, 223,224,225,226,227,228Pa, 224,225,226,227,228,229U; calculated well depths, quadrupole, hexadecapole deformation, level energies, static moments of inertia; deduced oblate superdeformed minima, prolate superdeformation features. Fermion dynamic symmetry model.
doi: 10.1016/0370-2693(92)90053-7
1991AH01 Phys.Rev. C44, 1204 (1991) I.Ahmad, M.P.Carpenter, R.R.Chasman, R.V.F.Janssens, T.L.Khoo Rotational Bands with Identical Transition Energies in Actinide Nuclei NUCLEAR STRUCTURE 240Pu, 244,246Cm, 250Cf, 236,238U; analyzed level data; deduced identical transition energy rotational bands.
doi: 10.1103/PhysRevC.44.1204
1991CH21 Z.Phys. A339, 111 (1991) Nuclear Equilibrium Shapes Near A = 100 NUCLEAR STRUCTURE A ≈ 100; calculated nuclear equilibrium shapes.
doi: 10.1007/BF01282939
1991CH36 Phys.Lett. 266B, 243 (1991) Superdeformed and Hyperdeformed Banana Shaped Nuclides Near A = 190 NUCLEAR STRUCTURE 190Pt, 189,190,191,192Au, 188,189,190,191,192,193,194,195Hg, 189,190,191,192,193,194,195Tl, 190,191,192,193Pb, 193,194,195,196Bi, 194Po; calculated level energy relative to prolate mininum, barrier heights, reflection symmetric shapes; deduced superdeformed, hyperdeformed minima, deformation features.
doi: 10.1016/0370-2693(91)91033-R
1990AH02 Phys.Lett. 251B, 338 (1990) I.Ahmad, R.R.Chasman, A.M.Friedman, S.W.Yates Neutron Single Particle States Above the N = 152 Subshell NUCLEAR REACTIONS 250Cf(d, p), E=12 MeV; measured proton spectra. 251Cf deduced levels, rotational bands, Nilsson assignments.
doi: 10.1016/0370-2693(90)90716-J
1990CH24 Phys.Lett. 242B, 317 (1990) The Effects of Pairing on Superdeformed Rotational Bands Near A = 190 NUCLEAR STRUCTURE 190,191,192,193,194Hg, 193,194Tl; calculated superdeformed level second moments of inertia.
doi: 10.1016/0370-2693(90)91768-7
1990DR06 Nucl.Phys. A515, 466 (1990) M.W.Drigert, M.Piiparinen, R.V.F.Janssens, R.Holzmann, I.Ahmad, J.Borggreen, R.R.Chasman, P.J.Daly, B.K.Dichter, H.Emling, U.Garg, Z.W.Grabowski, T.L.Khoo, W.C.Ma, M.Quader, D.C.Radford, W.Trzaska Discrete and Continuum Gamma-Ray Studies of 147Gd and 148Gd NUCLEAR REACTIONS 116Cd(36S, 5n), (36S, 4n), E=170 MeV; measured Eγ, Iγ, γγ(θ), γγ-correlations, Doppler shifts. 147,148Gd deduced levels, J, π, band structure, deformation. Enriched target, Compton-suppressed Ge-detectors, central array of BGO hexagons.
doi: 10.1016/0375-9474(90)90594-C
1990KH06 Nucl.Phys. A520, 169c (1990) T.L.Khoo, R.V.F.Janssens, E.F.Moore, K.B.Beard, Ph.Benet, I.Ahmad, M.P.Carpenter, R.R.Chasman, P.J.Daly, M.W.Drigert, U.Garg, Z.W.Grabowski, F.L.H.Wolfs, D.Ye Population of Superdeformed Bands, the Competition with Fission, and the Barrier between Normal and Superdeformed States NUCLEAR REACTIONS 160Gd(36S, 4n), E=154-172 MeV; 120Sn(36S, 4n), E=170 MeV; measured γγ-coin, γ-multiplicity. 152Dy, 192Hg deduced superdeformed band level entry, feeding spin features.
doi: 10.1016/0375-9474(90)91144-G
1990YE01 Phys.Rev. C41, R13 (1990) D.Ye, R.V.F.Janssens, M.P.Carpenter, E.F.Moore, R.R.Chasman, I.Ahmad, K.B.Beard, Ph.Benet, M.W.Drigert, P.B.Fernandez, U.Garg, T.L.Khoo, S.L.Ridley, F.L.H.Wolfs Superdeformed Band in 192Hg NUCLEAR REACTIONS 160Gd(36S, 4n), E=162 MeV; measured γγ-coin. 192Hg deduced levels, J, π, superdeformed band structure.
doi: 10.1103/PhysRevC.41.R13
1989CH06 Phys.Lett. 219B, 227 (1989) Superdeformation Near A = 190 NUCLEAR STRUCTURE 178W, 191,192,193Re, 178,180,192,193,194Os, 191,192,193,194,195Ir, 190,191,192,193,194,195,196Pt, 190,191,192,193,194,195,196Au, 187,190,191,192,193,194,195,196Hg, 188Tl, 191At, 192,203,204Rn, 193Fr; calculated level energies; deduced superdeformation features. Cranked Strutinsky method.
doi: 10.1016/0370-2693(89)90382-1
1989CH07 Phys.Lett. 219B, 232 (1989) Odd-Multipole Correlations in the Light Actinides NUCLEAR STRUCTURE 230,226,224Th, 234U; calculated levels, B(λ); deduced odd-multipole correlation evidence.
doi: 10.1016/0370-2693(89)90383-3
1989MO08 Phys.Rev.Lett. 63, 360 (1989) E.F.Moore, R.V.F.Janssens, R.R.Chasman, I.Ahmad, T.L.Khoo, F.L.H.Wolfs, D.Ye, K.B.Beard, U.Garg, M.W.Drigert, Ph.Benet, Z.W.Grabowski, J.A.Cizewski Observation of Superdeformation in 191Hg NUCLEAR REACTIONS 160Gd(36S, 5n), E=172 MeV; measured γγ-coin. 191Hg deduced superdeformed band structure, shape characteristics.
doi: 10.1103/PhysRevLett.63.360
1988DR01 Phys.Lett. 201B, 223 (1988) M.W.Drigert, R.V.F.Janssens, R.Holzmann, R.R.Chasman, I.Ahmad, J.Borggreen, P.J.Daly, B.K.Dichter, H.Emling, U.Garg, Z.W.Grabowski, T.L.Khoo, W.C.Ma, M.Piiparinen, M.Quader, D.C.Radford, W.Trzaska Evidence for Superdeformation in 148Gd RADIOACTIVITY 148Gd(α) [from 116Cd(36S, 4n), E=170 MeV]; measured Eγ, Iγ, γγ-coin, energy correlations. 148Gd deduced moment of inertia superdeformation. Compton suppressed Ge detectors. Cranked Strutinsky calculations. NUCLEAR STRUCTURE 146,147,148,150,151,152,153,154,155,156Er, 145,147,148,149,150,151,152,153,154,155Ho, 144,145,146,147,148,149,150,151,152,153Dy, 143,144,145,146,147,148,149,150,151,152,153Tb, 142,143,144,145,146,147,148,149,150,151,152Gd, 141,142,143,144,145,146,147,148,149,150,151Eu, 140,141,142,143,144,145,146,147,148,149,150Sm, 139,140,141,142,143,144,145,146,147,148,149Pm, 138,139,140,141,142,143,144,145,146,147,148Pr, 138,139,140,141,142,143,144,145,146,147,148Nd; calculated moments of inertia. 148Gd deduced superdeformation evidence. Cranked Strutinsky model.
doi: 10.1016/0370-2693(88)90217-1
1988MA18 Phys.Rev. C37, 1407 (1988) H.E.Martz, R.K.Sheline, R.G.Lanier, R.W.Hoff, G.L.Struble, D.J.Decman, D.G.Burke, R.R.Chasman, R.A.Naumann Octupole Deformation in 227Ac by Single-Proton Stripping Reactions: 226Ra(α, t)227Ac and 226Ra(3He, d)227Ac NUCLEAR REACTIONS 226Ra(α, t), (3He, d), E=30 MeV; measured σ(θ). 227Ac deduced levels, J, π. Nilsson model reflection-symmetric and Leander model reflection-asymmetric calculations. Radioactive target.
doi: 10.1103/PhysRevC.37.1407
1988RA19 Phys.Lett. 209B, 177 (1988) G.-E.Rathke, R.V.F.Janssens, M.W.Drigert, I.Ahmad, K.Beard, R.R.Chasman, U.Garg, M.Hass, T.L.Khoo, H.-J.Korner, W.C.Ma, S.Pilotte, P.Taras, F.L.H.Wolfs A Superdeformed Band in 151Dy NUCLEAR REACTIONS 122Sn(34S, 5n), E=174.5 MeV; measured γγ-coin, γ multiplicity, Eγ, Iγ. 151Dy deduced levels, J, π, γ-branching, deformation, superdeformation features.
doi: 10.1016/0370-2693(88)90928-8
1987AH05 Nucl.Phys. A472, 285 (1987) I.Ahmad, J.E.Gindler, A.M.Friedman, R.R.Chasman, T.Ishii Level Structure of 225Ac RADIOACTIVITY 229Pa(α) [from 229Th(d, 2n), 230Th(d, 3n)]; measured Eγ, Iγ, I(ce), αγ-, γγ-coin. 225Ra(β-) [from 229Th α-decay]; measured Eγ, Iγ. 225Ac deduced levels, J, π.
doi: 10.1016/0375-9474(87)90211-9
1987CH07 Phys.Lett. 187B, 219 (1987) Superdeformation in the Rare-Earth Region NUCLEAR STRUCTURE 132Ce, 146Pm, 141,142,147,148Sm, 142,143,144,145,146,147,148,149Eu, 144,147,148,149,150Gd, 149,150,151,152Tb, 151,152,153Dy, 153Ho; calculated well depths, deformation, superdeformation parameters, excitation energies, proton, neutron unoccupied levels. Strutinsky method.
doi: 10.1016/0370-2693(87)91084-7
1987PI07 Phys.Lett. 194B, 468 (1987) M.Piiparinen, M.W.Drigert, R.V.F.Janssens, I.Ahmad, J.Borggreen, R.R.Chasman, P.J.Daly, B.K.Dichter, H.Emling, U.Garg, Z.W.Grabowski, R.Holzmann, T.L.Khoo, W.C.Ma, M.Quader, D.C.Radford, W.Trzaska Level Structure of 148Gd up to I = 44 NUCLEAR REACTIONS 116Cd(36S, 4n), E=170 MeV; measured Eγ, Iγ, γγ-coin. 148Gd deduced levels, J, π, γ-branching, γ multipolarity, configurations. Compton suppressed Ge spectrometer array.
doi: 10.1016/0370-2693(87)90218-8
1986CH23 Phys.Lett. 175B, 254 (1986) Incipient Octupole and 26-Pole Deformation in the Mass Region 220 < A < 230 NUCLEAR STRUCTURE 220,222,224Rn, 220,222,224,226,228Ra, 222,224,226,228Th, 224,226,228U; calculated binding energies; deduced deformation role, characteristics.
doi: 10.1016/0370-2693(86)90850-6
1986CH43 Phys.Lett. 182B, 261 (1986) Triaxiality and Reflection Asymmetry in the Mass Region A ≈ 220 NUCLEAR STRUCTURE 223,225Ra; calculated levels, B(E2); deduced triaxial deformation effects. Shell corrections.
doi: 10.1016/0370-2693(86)90086-9
1985IS03 Nucl.Phys. A444, 237 (1985) T.Ishii, I.Ahmad, J.E.Gindler, A.M.Friedman, R.R.Chasman, S.B.Kaufman Measurement of Rates of Fast E1 Transitions in Ac-Ra Nuclei RADIOACTIVITY 225Ra(β-); 229Th, 231Pa(α); measured γγ(t), αγ(t). 225Ra levels deduced T1/2, quadrupole moment, B(λ), α-branching ratio. 225,227Ac deduced T1/2, B(λ).
doi: 10.1016/0375-9474(85)90348-3
1984AH01 Phys.Rev.Lett. 52, 503 (1984) I.Ahmad, R.R.Chasman, J.E.Gindler, A.M.Friedman Enhanced E1 Transition Rates and Octupole Deformation in 225Ac RADIOACTIVITY 229Pa(α); 225Ra(β-); measured I(K X-ray), Iγ, ratio. 225Ra level deduced J, π. 225Ac levels deduced J, π, γ-branching, γ-multipolarity, enhanced B(E1), parity doublet rotational band characteristics.
doi: 10.1103/PhysRevLett.52.503
1984CH35 Phys.Lett. 149B, 433 (1984) Spin-Orbit Interaction in Strongly Deformed Nuclides NUCLEAR STRUCTURE 154Dy; calculated levels. N=86, 88, 90; calculated shell correction effect vs radius parameter.
doi: 10.1016/0370-2693(84)90360-5
1983CH30 Phys.Rev. C28, 1374 (1983) Spherical, Oblate, and Prolate Nuclear Shapes near 146Gd NUCLEAR STRUCTURE 144Sm, 146,147Gd, 148Dy, 150Er, 152Yb, 154Hf; calculated single particle spectrum, high spin yrast levels, B(E2), 0+ excited state spectrum, pair transfer probability.
doi: 10.1103/PhysRevC.28.1374
1982AH08 Phys.Rev.Lett. 49, 1758 (1982) I.Ahmad, J.E.Gindler, R.R.Betts, R.R.Chasman, A.M.Friedman Possible Ground-State Octupole Deformation in 229Pa RADIOACTIVITY 229Pa(EC), 229U(EC) [from mass separation]; measured I(ce), Eγ, Iγ, γγ-, γ(X-ray)-, (ce)(X-ray)-coin. 229Pa deduced levels, J, π, K, γ-multipolarity, ground state doublet splitting, Nilsson assignment. NUCLEAR REACTIONS 231Pa(p, t), E=16.5 MeV; measured σ(Et). 229Pa deduced levels, J, π, possible octupole deformation, Nilsson assignment, K.
doi: 10.1103/PhysRevLett.49.1758
1982CH04 Phys.Lett. 108B, 251 (1982) The Relation of the Neutron Single Particle Gap at N = 82 to High Spin Yrast States at A ≈ 150 NUCLEAR STRUCTURE 147Gd, 150,151,152Dy; calculated high-spin yrast states. Empirical neutron gap energy, pairing, quadrupole-quadrupole interactions.
doi: 10.1016/0370-2693(82)91186-8
1981CH10 Phys.Lett. 102B, 229 (1981) Neutron Single Particle States for N ≈ 82 and the Yrast States of 150,151,152Dy NUCLEAR STRUCTURE 152,151,150Dy; calculated levels, single particle energies, quadrupole matrix elements. Quadrupole-quadrupole interaction Hamiltonian.
doi: 10.1016/0370-2693(81)90864-9
1980CH04 Phys.Rev. C21, 456 (1980) 147Tb and Proton Single Particle States Near Z = 64 NUCLEAR STRUCTURE 144Sm, 146Gd, 148Dy, 143Pm, 147Tb; calculated high spin state energies. Pairing interaction.
doi: 10.1103/PhysRevC.21.456
1980CH30 Phys.Lett. B96, 7 (1980) Incipient Octupole Deformation and Parity Doublets in the Odd Mass Light Actinides NUCLEAR STRUCTURE 231,229,227Th, 227,229,231Pa, 227Ac; calculated levels, B(E3); deduced octupole deformation, parity doublets. Pairing Hamiltonian, quadrupole-quadrupole, octupole-octupole interactions.
doi: 10.1016/0370-2693(80)90199-9
1979AH02 Phys.Rev. C19, 1140 (1979) Electric Monopole Transitions and Excited 0+ States in 250Cf RADIOACTIVITY 250Es [from 249Cf(d, n), E=18 MeV]; measured Eγ, Iγ, E(ce), I(ce). 250Cf deduced levels, log ft(ϵ), J, π, γ-multipolarity, E0 transition. Mass separation.
doi: 10.1103/PhysRevC.19.1140
1979CH02 Phys.Rev.Lett. 42, 630 (1979) Octupole-Octupole Residual Interactions and Low-Lying 0+ Excited States in the Isotopes 232U, 234U, and 236U NUCLEAR STRUCTURE 232,234,236U; calculated energies of low-lying 0+ states. Hamiltonian with pairing, particle-hole octupole-octupole forces, interaction strength adjusted to fit 0- energies.
doi: 10.1103/PhysRevLett.42.630
1977AH01 Phys.Rev.Lett. 39, 12 (1977) I.Ahmad, A.M.Friedman, R.R.Chasman, S.W.Yates Proton Orbital 1/2- [521] and the Stability of Superheavy Elements NUCLEAR REACTIONS 250Cf, 246Cm(α, t), E=28 MeV; measured σ(Et). 251Es, 247Bk deduced levels, K, J, π.
doi: 10.1103/PhysRevLett.39.12
1977CH27 Rev.Mod.Phys. 49, 833 (1977) R.R.Chasman, I.Ahmad, A.M.Friedman, J.R.Erskine Survey of Single-Particle States in the Mass Region A > 228 NUCLEAR STRUCTURE 229,231,233Th, 233,235,237,239U, 237,239,241,243,245Pu, 243,245,247,249Cm, 247,249,251,253Cf, 251Fm, 231,233Pa, 235,237,239Np, 239,241,243,245Am, 247,249Bk; analyzed structure data; deduced level character, K, J, π.
doi: 10.1103/RevModPhys.49.833
1976CH22 Phys.Rev. C14, 1935 (1976) Density-Dependent Delta Interactions and Actinide Pairing Matrix Elements NUCLEAR STRUCTURE 233,235,237U, 241Pu, 245,247,249Cm, 251Cf, 231Pa, 237Np, 241,243Am, 249Bk, 251Es; calculated, extracted single particle spectra; deduced DDDI matrix elements.
doi: 10.1103/PhysRevC.14.1935
1976WI17 Phys.Rev. C14, 1832 (1976) B.D.Wilkins, E.P.Steinberg, R.R.Chasman Scission-Point Model of Nuclear Fission Based on Deformed-Shell Effects NUCLEAR STRUCTURE Po, Ra, U, Cm, Cf, Fm; calculated fission A, Z, kinetic energy distributions. Liquid-drop model.
doi: 10.1103/PhysRevC.14.1832
1975ER01 Phys.Rev. C11, 561 (1975) J.R.Erskine, G.Kyle, R.R.Chasman, A.M.Friedman Study of 249Bk, 241Am, and 231Pa with Proton Transfer Reactions NUCLEAR REACTIONS 248Cm(3He, d), 248Cm, 240Pu, 230Th(α, t), E=29 MeV; measured σ(Ed), σ(Et). 249Bk, 241Am, 231Pa deduced levels, J, S, β.
doi: 10.1103/PhysRevC.11.561
1975YA11 Phys.Rev. C12, 442 (1975) S.W.Yates, R.R.Chasman, A.M.Friedman, I.Ahmad, K.Katori Particle-Phonon Interactions in 248Cf and 249Cf NUCLEAR REACTIONS 249Cf(d, d'), E=15 MeV; measured σ(Ed', θ). 249Cf(d, t), E=12 MeV; measured σ(Et, θ). 248,249Cf deduced levels, K, J, π.
doi: 10.1103/PhysRevC.12.442
1974CH34 Phys.Rev.Lett. 33, 544 (1974) Superheavy Elements and the Strutinsky Prescription NUCLEAR STRUCTURE 298Fl; calculated single particle energy levels.
doi: 10.1103/PhysRevLett.33.544
1973CH04 Phys.Rev. C7, 553 (1973) Method of Correlated Quasiparticles. II. 0+ Particle-Particle Residual Interactions NUCLEAR STRUCTURE 234,236U; calculated neutron occupation probabilities. Correlated quasiparticle method.
doi: 10.1103/PhysRevC.7.553
1973CH36 Phys.Rev. C8, 1896 (1973) Method of Correlated Quasiparticles. III. 0+ Particle-Particle Residual Interactions in Odd-Mass Systems NUCLEAR STRUCTURE 235,237U calculated levels. Quasiparticles, residual interactions.
doi: 10.1103/PhysRevC.8.1896
1972BR46 Phys.Rev. C6, 1374 (1972) T.H.Braid, R.R.Chasman, J.R.Erskine, A.M.Friedman Reaction-Spectroscopy Studies of the Actinide Elements. III. Levels in 241Pu and 243Pu NUCLEAR REACTIONS 242Pu(d, p), E=12 MeV; 240Pu(d, p), E=12 MeV; 242Pu(d, t), E=12 MeV; 241Pu(d, d'), E=12 MeV; measured Q, σ(Ep), σ(Et), σ(Ed'). 240Pu(n, γ), E=thermal; measured Eγ, Iγ. 241Pu, 243Pu deduced levels, J, Nilsson assignments.
doi: 10.1103/PhysRevC.6.1374
1972CH12 Phys.Rev.Lett. 28, 1275 (1972) 0+ Excited States in the Actinides NUCLEAR STRUCTURE 234,236U; calculated 0+ excited states. Pairing force theory.
doi: 10.1103/PhysRevLett.28.1275
1971BR27 Phys.Rev. C4, 247 (1971) T.H.Braid, R.R.Chasman, J.R.Erskine, A.M.Friedman (d, p) and (d, t) Studies of the Actinide Elements. II. 243Cm, 245Cm, 247Cm, and 249Cm NUCLEAR REACTIONS 244,246,248Cm(d, p), (d, t), E=12, 16 MeV; measured σ(Ep), σ(Et). 243,245,247,249Cm deduced levels, J, Nilsson assignments, deformation parameters.
doi: 10.1103/PhysRevC.4.247
1971CH13 Phys.Rev. C3, 1803 (1971) Simple Momentum-Dependent Nuclear Central Potential NUCLEAR STRUCTURE 235U; calculated single-particle states. A=160-250; deduced potential parameters. Momentum- dependent central potential.
doi: 10.1103/PhysRevC.3.1803
1970BR01 Phys.Rev. C1, 275 (1970) T.H.Braid, R.R.Chasman, J.R.Erskine, A.M.Friedman (d, p) and (d, t) Reaction Studies of the Actinide Elements. I. U235 NUCLEAR REACTIONS 234U(d, p), 236U(d, t), E=12 MeV; measured σ(Ep), σ(Et), Q. 235U deduced levels, S, rotational band assignments.
doi: 10.1103/PhysRevC.1.275
1967ER02 Proc.Intern.Conf.Atomic Masses, 3rd, Winnipeg, Canada, R.C.Barber, Ed., Univ.Manitoba Press, p.622 (1967) J.R.Erskine, A.M.Friedman, T.H.Braid, R.R.Chasman Nuclear Q-Value Measurements on a Series of Actinide Nuclei NUCLEAR REACTIONS 230,232Th, 234,236,238U, 240,242Pu, 244,246,248Cm(d, p), E = 12 MeV; 230,232Th, 234,236,238U, 242Pu, 244,246,248Cm(d, t), E = 12 MeV; measured Q.
1966CH19 Nucl.Phys. 89, 11 (1966) Neutron Single-Particle Energies in the Yb Isotopes NUCLEAR STRUCTURE 175Yb, 173Yb, 171Yb, 177Yb, 169Yb; measured not abstracted; deduced nuclear properties.
doi: 10.1016/0029-5582(66)90842-X
1965BR22 Phys.Letters 18, 149 (1965) T.H.Braid, R.R.Chasman, J.R.Erskine, A.M.Friedman Energy Level Structure of 231Th, 235U, 237U, 241Pu and 243Pu as Observed at High Resolution with (d, p) Reactions NUCLEAR STRUCTURE 237U, 235U, 231Th, 241Pu, 243Pu; measured not abstracted; deduced nuclear properties.
doi: 10.1016/0031-9163(65)90695-5
1963CH06 Phys.Rev. 129, 2113 (1963) Nuclear Magnetic Moments of W183, Os187, and Fe57 NUCLEAR STRUCTURE 187Os, 57Fe, 183W; measured not abstracted; deduced nuclear properties.
doi: 10.1103/PhysRev.129.2113
1962CH22 TID-16262 (1962); Nucl.Sci.Abstr.17, 3200, Abstr.24398 (1963) Nuclear Magnetic Moments of W183, Os187 and Fe57 NUCLEAR STRUCTURE 57Fe, 187Os, 183W; measured not abstracted; deduced nuclear properties.
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