NSR Query Results
Output year order : Descending NSR database version of May 3, 2024. Search: Author = G.A.Leander Found 38 matches. 1989ME06 Phys.Rev. C39, 1876 (1989) B.S.Meyer, W.M.Howard, G.J.Mathews, K.Takahashi, P.Moller, G.A.Leander Beta-Delayed Fission and Neutron Emission Calculations for the Actinide Cosmochronometers NUCLEAR STRUCTURE 234,244,252Fr, 246,248,252,264Ac, 250,252,254,260,270Pa, 252,254,276Np, 251,258,264,277Am; calculated Gamow-Teller strength functions; deduced beta-delayed fission, beta delayed neutron emission, galactic age uncertainities. Actinide cosmochronometers.
doi: 10.1103/PhysRevC.39.1876
1988BE41 Phys.Scr. 38, 657 (1988) C.E.Bemis, Jr., F.K.McGowan, J.L.C.Ford, Jr., W.T.Milner, R.L.Robinson, P.H.Stelson, G.A.Leander, C.W.Reich Coulomb Excitation of States in 229Th NUCLEAR REACTIONS 229Th(α, α), (α, α'), E=17 MeV; measured σ(Eα), σ(Eα') following Coulomb excitation. 229Th levels deduced excitation probability, B(E2), intrinsic quadrupole, hexadecapole moments, J, π, K, Nilsson assignments.
doi: 10.1088/0031-8949/38/5/004
1988LE13 Phys.Rev. C37, 2744 (1988) Reflection-Asymmetric Rotor Model of Odd A ≈ 219-229 Nuclei NUCLEAR STRUCTURE 219,221,223,225Rn, 221,223,225,227Fr, 219,221,223,225,227Ra, 219,223,225,227,229Ac, 221,223,225,227,229Th, 229Pa; calculated levels, B(λ), relative spectroscopic factors, electromagnetic properties; deduced deformation parameters.
doi: 10.1103/PhysRevC.37.2744
1988LE16 Phys.Rev. C38, 728 (1988) Statistical E1 and M1 Gamma Strength Functions from Heavy-Ion, xnγ Data NUCLEAR STRUCTURE A=15-255; 152Dy, 160Er, 162Yb, 164Hf; analyzed M1 transition strengths, E1 strength functions. Statistical model, fusion data input.
doi: 10.1103/PhysRevC.38.728
1988SH34 Nucl.Phys. A486, 306 (1988) R.K.Sheline, Y.-S.Chen, G.A.Leander The Nuclear Spectroscopy and Structure of 223Ra NUCLEAR STRUCTURE 223Ra; calculated levels, magnetic moment, quadrupole moment. Reflection asymmetric rotor model.
doi: 10.1016/0375-9474(88)90238-2
1987BO44 Phys.Rev. C36, 2560 (1987) J.A.Bounds, C.R.Bingham, H.K.Carter, G.A.Leander, R.L.Mlekodaj, E.H.Spejewski, W.M.Fairbank, Jr. Nuclear Structure of Light Thallium Isotopes as Deduced from Laser Spectroscopy on a Fast Atom Beam RADIOACTIVITY 189m,190m,191m,192m,193,193m,194m,201Tl; measured hfs; deduced hfs constants. 190m,192m,193,194,194m,201,203Tl deduced μ, rms radii differences. 193m,191m,189mTl deduced quadrupole moment, deformation, μ, rms radii differences. Other data input, fast atom beam laser spectroscopy.
doi: 10.1103/PhysRevC.36.2560
1987DU04 Phys.Rev.Lett. 59, 1405 (1987) J.Dudek, W.Nazarewicz, Z.Szymanski, G.A.Leander Abundance and Systematics of Nuclear Superdeformed States; Relation to the pseudospin and pseudo-SU(3) symmetries NUCLEAR STRUCTURE 148,152,154Dy, 136,144,150Sm, 132,134,144Nd, 128,132,142Ce; calculated potential energy surfaces; deduced super elongation particle number dependence, superdeformation effects.
doi: 10.1103/PhysRevLett.59.1405
1987HE01 J.Phys.(London) G13, 43 (1987) M.A.Herath-Banda, A.V.Ramayya, L.Cleemann, J.Eberth, J.Roth, T.Heck, N.Schmal, T.Mylaeus, W.Koenig, B.Martin, K.Bethge, G.A.Leander Signature Splitting of Electromagnetic Transitions in 75Kr NUCLEAR REACTIONS 46Ti(32S, n2p), E=85-150 MeV; measured σ(Eγ, E), σ(θ), nγγ-, γγ-coin, Eγ, Iγ. 75Kr deduced levels, J, π. Enriched target, Ge(Li), neutron multiplicity detectors. Theoretical analysis.
doi: 10.1088/0305-4616/13/1/008
1987KE05 Phys.Rev. C36, 1514 (1987) B.D.Kern, R.L.Mlekodaj, G.A.Leander, M.O.Kortelahti, E.F.Zganjar, R.A.Braga, R.W.Fink, C.P.Perez, W.Nazarewicz, P.B.Semmes Transition through Triaxial Shapes of the Light Samarium Isotopes and the Beta Decay of 136,138,140Eu NUCLEAR REACTIONS 92Mo(48Ti, xnp), E=220 MeV; 112Sn(28Si, xnp), E=170, 190 MeV; measured Eγ, Iγ, γγ-coin. Enriched targets, Ge detectors, magnetic isotope separator. RADIOACTIVITY 136,138,140Eu(β+), (EC) [from 92Mo(48Ti, pxn), E=220 MeV; 112Sn(28Si, xnp), E=170, 190 MeV]; measured Eγ, Iγ, γγ-coin. 136,138,140Sm deduced levels. Enriched targets, Ge detectors, magnetic isotope separator. NUCLEAR STRUCTURE 136,138,140Sm; calculated levels. Wood-Saxon Strutinsky, triaxial models, interacting boson approximation.
doi: 10.1103/PhysRevC.36.1514
1987LE05 Phys.Rev. C35, 1145 (1987) Rigid Reflection-Asymmetric Rotor Description of the Nucleus 227Ac NUCLEAR STRUCTURE 227Ac; calculated levels, structure factor. Particle-rotor model, static octupole deformation.
doi: 10.1103/PhysRevC.35.1145
1987NA10 Nucl.Phys. A467, 437 (1987) W.Nazarewicz, G.A.Leander, J.Dudek Octupole Shape and Shape Changes at High Spins in Ra and Th Nuclei NUCLEAR STRUCTURE 218,220,222,224,226Ra, 230,222,224,226,228Th; calculated levels, routhians, rotational band properties, shapes, B(E1)/B(E2) ratios; deduced shape spin dependence. Cranking model.
doi: 10.1016/0375-9474(87)90539-2
1987PA02 Phys.Rev.Lett. 58, 984 (1987) E.S.Paul, C.W.Beausang, D.B.Fossan, R.Ma, W.F.Piel, Jr., N.Xu, L.Hildingsson, G.A.Leander Collective Oblate Band in 131La Due to the Rotational Alignment of h11/2 Neutrons NUCLEAR REACTIONS 116Cd(19F, 4nγ), E=76 MeV; measured γγ-coin. 131La deduced levels, J, π, band structure, shape characteristics. Ge detectors. Cranked shell model calculations.
doi: 10.1103/PhysRevLett.58.984
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
1986BA14 Phys.Rev. C33, 1461 (1986) D.Ballon, Y.Niv, S.Vajda, N.Benczer-Koller, L.Zamick, G.A.Leander Magnetic Moments of the (3/2)1- and (5/2)1- States in 107,109Ag NUCLEAR REACTIONS 107,109Ag(32S, 32S'), E=80 MeV; measured γγ(θ, H), γ(32S)-coin following Coulomb excitation. 107,109Ag levels deduced g ratio.
doi: 10.1103/PhysRevC.33.1461
1986CH40 Phys.Rev. C34, 1935 (1986) Y.S.Chen, P.B.Semmes, G.A.Leander Calculation of M1 Transition Rates at High Spin in Axial Nuclei NUCLEAR STRUCTURE 165Lu, 81Kr, 166Hf; calculated yrast levels, g factors, B(M1). Cranking, particle-rotor models.
doi: 10.1103/PhysRevC.34.1935
1986LA08 Phys.Lett. 169B, 21 (1986) A.J.Larabee, M.P.Carpenter, L.L.Riedinger, L.H.Courtney, J.C.Waddington, V.P.Janzen, W.Nazarewicz, J.-Y.Zhang, R.Bengtsson, G.A.Leander Shape Coexistence and Alignment Processes in the Light Pt and Au Region NUCLEAR REACTIONS 170Yb(19F, 4n), E=97 MeV; measured γγ-coin. 185Au deduced levels, J, π, γ-branching, band deformations, shape coexistence.
doi: 10.1016/0370-2693(86)90678-7
1986LE05 Nucl.Phys. A453, 58 (1986) G.A.Leander, W.Nazarewicz, G.F.Bertsch, J.Dudek Low-Energy Collective E1 Mode in Nuclei NUCLEAR STRUCTURE 218,220,222,224,226Ra, 220,222,224,226,228Th; calculated B(E1)/B(E2) branching ratio; deduced isovector E1 moment shell effect dependence.
doi: 10.1016/0375-9474(86)90029-1
1986MO03 Z.Phys. A323, 41 (1986) P.Moller, G.A.Leander, J.R.Nix On the Stability of the Transeinsteinium Elements NUCLEAR STRUCTURE Z>100; calculated Q(α), fission T1/2, ground state property microscopic corrections; deduced 288100, 299100 superheavy high stability.
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
1986RE04 Phys.Lett. 169B, 148 (1986) C.W.Reich, I.Ahmad, G.A.Leander E1 Transition Probabilities Within the K(π) = 1/2(±) Parity-Doublet Bands in 225Ra NUCLEAR STRUCTURE 225Ra; analyzed data; deduced parity doublet band B(E1) systematics.
doi: 10.1016/0370-2693(86)90639-8
1985BO46 Phys.Rev.Lett. 55, 2269 (1985) J.A.Bounds, C.R.Bingham, P.Juncar, H.K.Carter, G.A.Leander, R.L.Mlekodaj, E.H.Spejewski, W.M.Fairbank, Jr. Role of Deformation in the Intrusion of the h9/2 Levels below the Z = 82 Proton Shell RADIOACTIVITY 189,191,193Tl(β+), (EC); 193mTl(IT); measured hfs, isotope shift; deduced isomer intrinsic, spectroscopic quadrupole moments, deformation β2.
doi: 10.1103/PhysRevLett.55.2269
1985LE04 Phys.Lett. 152B, 284 (1985) G.A.Leander, W.Nazarewicz, P.Olanders, I.Ragnarsson, J.Dudek A New Region of Intrinsic Reflection Asymmetry in Nuclei Around 145Ba ( Question ) NUCLEAR STRUCTURE 146Ba; calculated single particle level vs quadrupole, octupole deformation. 145Cs, 145Ba; calculated ground state J, μ; deduced region of intrinsic reflection asymmetry.
doi: 10.1016/0370-2693(85)90496-4
1985RA04 Phys.Rev.Lett. 54, 982 (1985) I.Ragnarsson, T.Bengtsson, W.Nazarewicz, J.Dudek, G.A.Leander Band Termination at Very High Spin in 158Yb NUCLEAR STRUCTURE 158,168Yb, 152Dy; analyzed level, yrast E2 transition data. 158Yb deduced band termination at high spin.
doi: 10.1103/PhysRevLett.54.982
1984CO17 Phys.Rev. C30, 1267 (1984) J.D.Cole, J.H.Hamilton, A.V.Ramayya, W.Lourens, B.van Nooijen, H.Kawakami, L.A.Mink, E.H.Spejewski, H.K.Carter, R.L.Mlekodaj, G.A.Leander, L.L.Riedinger, C.R.Bingham, E.F.Zganjar, J.L.Wood, R.W.Fink, K.S.Toth, B.D.Kern, K.S.R.Sastry Decay of 188Tl and Observed Shape Coexistence in the Bands of 188Hg RADIOACTIVITY 188Tl(β+), (EC) [from 181Ta(16O, 9n), E=143-145 MeV; 180W(14N, 6n), E=184-188 MeV]; measured Eγ, Iγ, I(ce), γγ-, γ(ce)-coin. 188Tl levels deduced T1/2. 188Hg deduced levels, J, π, γ-branching, δ, ICC.
doi: 10.1103/PhysRevC.30.1267
1984EL07 ATOMKI Kozlem. 26, 30 (1984) H.El-Samman, V.Barci, T.Bengtsson, A.Gizon, J.Gizon, L.Hildingsson, D.Jerrestam, W.Klamra, R.Kossakowski, G.A.Leander, Th.Lindblad Collective Moment of Inertia of 118,122Xe and 128,130Ba NUCLEAR REACTIONS 112,117,122Sn, 123Sb(12C, xnyp), E not given; measured γγ-coin, energy correlations. 122,118Xe, 128,130Ba deduced dynamic moment of inertia.
1984EL08 Nucl.Phys. A427, 397 (1984) H.El-Samman, V.Barci, A.Gizon, J.Gizon, L.Hildingsson, D.Jerrestam, W.Klamra, R.Kossakowski, Th.Lindblad, T.Bengtsson, G.A.Leander On the Difference of the Dynamic Moment of Inertia I(2) Band for Xe and Ba Nuclei NUCLEAR REACTIONS 112,117,112Sn(12C, X), E=80-118 MeV; 123Sb(12C, X), E=118 MeV; measured γγ-coin, γ-ray multiplicity; deduced γγ-energy correlation matrices. 118,122Xe, 128,130Ba deduced dynamic I(2) band moment of inertia.
doi: 10.1016/0375-9474(84)90091-5
1984LE04 Nucl.Phys. A413, 375 (1984) Intrinsic Reflection Asymmetry in Odd-A Nuclei NUCLEAR STRUCTURE 225Ac, 225Ra; calculated Nilsson quasiparticle levels. 221,223,225,227,229Ac; calculated K=1/2 band decoupling parameter. 221,223,225,227Ra; calculated K=1/2 band decoupling parameter, μ. 229Ra; calculated μ. 223,225,227Ac; calculated α-transition rates, hindrance factors. 227,229,231Pa; calculated α-decay hindrance factors. 229Th; calculated levels. Intrinsic reflection symmetry.
doi: 10.1016/0375-9474(84)90417-2
1984LE12 Phys.Rev. C30, 416 (1984) G.A.Leander, J.Dudek, W.Nazarewicz, J.R.Nix, Ph.Quentin Single-Particle Levels in the Doubly Magic 132Sn and 100Sn Nuclei NUCLEAR STRUCTURE 56Ni, 100,132Sn, 208Pb; calculated single particle binding energies. Woods-Saxon, folded Yukawa, Skyrme interaction models.
doi: 10.1103/PhysRevC.30.416
1984NA08 Phys.Rev.Lett. 52, 1272 (1984); Erratum Phys.Rev.Lett. 53, 2060 (1984) W.Nazarewicz, P.Olanders, I.Ragnarsson, J.Dudek, G.A.Leander High-Spin Consequences of Octupole Shape in Nuclei around 222Th NUCLEAR STRUCTURE 222Th; calculated β2, β3, potential energy deformation, neutron quasiparticle Routhians, rotational band angular momentum vs rotational frequency; deduced no octupole deformation backbend relationship. Woods-Saxon-Bogolyubov cranking calculation.
doi: 10.1103/PhysRevLett.52.1272
1984NA22 Nucl.Phys. A429, 269 (1984) W.Nazarewicz, P.Olanders, I.Ragnarsson, J.Dudek, G.A.Leander, P.Moller, E.Ruchowska Analysis of Octupole Instability in Medium-Mass and Heavy Nuclei NUCLEAR STRUCTURE 146Ba, 224Ra; calculated octupole deformation energy. 72Se, 92Kr, 146Ba, 224Th; calculated octupole deformation potential energy. 74,90Kr; calculated shell plus pairing, Strutinsky energies. 140,142,144,146,148Xe, 142,144,146,148,150Ba, 142,144,146,148,150,152Ce, 146,148,150,152,154Nd, 218Po, 218,220,222,224,226Rn, 218,220,222,224,226,228,230Ra, 220,222,224,226,228,230Th, 222,224,226,228,230U; calculated equilibrium shapes. Strutinsky type calculations.
doi: 10.1016/0375-9474(84)90208-2
1983AR18 Phys.Scr. T5, 157 (1983) Microscopic Calculations of Nuclear Wobbling Rotation NUCLEAR STRUCTURE 179Hf; calculated high-K configuration moment of inertia. 179W; calculated levels. 158Yb; calculated quasicontinuum level energy vs K. Microscopic model, nuclear wobbling rotation.
doi: 10.1088/0031-8949/1983/T5/029
1983CH46 Phys.Rev. C28, 2437 (1983) Y.S.Chen, S.Frauendorf, G.A.Leander Shape of Rotating Quasiparticle Orbits and Signature Splitting in La, Ce, and Pr Nuclei NUCLEAR STRUCTURE 129,130,131,133,134,135Ce, 129,130,133,134La, 130,131,134,135Pr; calculated yrast, near-yrast band Routhians, (γ) deformation signature splitting. Cranking model.
doi: 10.1103/PhysRevC.28.2437
1983KE08 Phys.Rev. C28, 2168 (1983) B.D.Kern, K.S.Toth, D.M.Moltz, J.Lin, F.T.Avignone III, H.Noma, G.A.Leander Beta Decay of 75Rb to Low-Lying Levels in 75Kr RADIOACTIVITY 75Rb(β+) [from 58Ni(20Ne, p2n)]; measured T1/2, Eγ, Iγ, γγ-coin. 75Kr deduced levels, J, π. Mass separated samples.
doi: 10.1103/PhysRevC.28.2168
1983LE15 Nucl.Phys. A400, 97c (1983) G.A.Leander, P.Arve, T.Bengtsson, I.Ragnarsson, J.Y.Zhang Theoretical Aspects of High-Spin States NUCLEAR STRUCTURE 160Er; calculated level spin vs transition energy. Cranking model.
doi: 10.1016/0375-9474(83)90429-3
1983SH16 Phys.Rev.Lett. 51, 359 (1983) Strong and Weak Coupling to the Octupole-Deformed Mode in 22789Ac NUCLEAR STRUCTURE 227Ac; analyzed level scheme; deduced degenerate band intrinsic g, absolute decoupling parameters, bandhead K, π.
doi: 10.1103/PhysRevLett.51.359
1983YA03 Phys.Lett. 128B, 33 (1983) H.Yamada, A.Ahmed, H.Banda, J.H.Hamilton, C.F.Maguire, R.B.Piercey, A.V.Ramayya, S.A.Hjorth, D.C.Hensley, J.D.Cole, G.A.Leander Eγ - Eγ Correlations from Partial Fusion Reactions NUCLEAR REACTIONS 154Sm(14N, xnp), (14N, xnd), (14N, xnt)157Er/158Er/159Er, E=167 MeV; measured γγ energy correlations, (particle)γ-coin. 158Er deduced rotational band structure. Partial fusion reaction.
doi: 10.1016/0370-2693(83)90068-0
1982CH30 Phys.Rev. C26, 2607 (1982) Quasicontinuum Properties of M1 Spectra in the Particle-Rotor Model NUCLEAR STRUCTURE 159,161,163,165,167,169,171,173,175,177Yb, 127,129,131,133,135,137,139Ce, 131Pr, 129La, 127Cs, 125I, 123Sb; calculated M1 quasicontinuum γ-spectra; deduced particle, quasiparticle number dependence. Core-quasiparticle coupling models.
doi: 10.1103/PhysRevC.26.2607
1982LE19 Nucl.Phys. A388, 452 (1982) G.A.Leander, R.K.Sheline, P.Moller, P.Olanders, I.Ragnarsson, A.J.Sierk The Breaking of Intrinsic Reflection Symmetry in Nuclear Ground States NUCLEAR STRUCTURE 218,220Po, 218,220,222,224,226Rn, 220,222,224,226,228,230,232,234Ra, 220,222,224,226,228,230,232,234,236Th, 222,224,226,228,230,232U; calculated potential energy minima. 223,225,227Ac, 227Ra, 229,231Th, 233Pa, 233U; calculated octupole separation energy. Intrinsic reflection symmetry breaking.
doi: 10.1016/0375-9474(82)90471-7
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