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NSR database version of May 24, 2024.

Search: Author = R.W.MacLeod

Found 62 matches.

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2001CR04      Nucl.Instrum.Methods Phys.Res. A462, 519 (2001)

M.Cromaz, T.J.M.Symons, G.J.Lane, I.Y.Lee, R.W.MacLeod

Blue: A database for high-fold γ-ray coincidence data

doi: 10.1016/S0168-9002(00)01126-8
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2001DE42      Phys.Rev. C64, 054309 (2001)

A.Dewald, R.Kuhn, R.Peusquens, P.von Brentano, R.Krucken, M.A.Deleplanque, I.Y.Lee, R.M.Clark, P.Fallon, A.O.Macchiavelli, R.W.MacLeod, F.S.Stephens, T.L.Khoo, P.Reiter, K.Hauschild

Investigation of the Decay Out of Superdeformed Bands in 194Hg by Lifetime Measurements

NUCLEAR REACTIONS 150Nd(48Ca, 4n), E=210 MeV; measured Doppler-shifted Eγ, Iγ, γγ-coin. 194Hg deduced superdeformed band levels T1/2, transition quadrupole moments, decay-out mechanism features. Gammasphere array, recoil-distance technique.

doi: 10.1103/PhysRevC.64.054309
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2001KL03      Eur.Phys.J. A 10, 11 (2001)

W.Klamra, S.Asztalos, J.A.Becker, B.Cederwall, R.M.Clark, M.A.Deleplanque, R.M.Diamond, P.Fallon, L.P.Farris, I.Y.Lee, A.O.Macchiavelli, R.W.Macleod, D.G.Sarantites, F.S.Stephens

High-Spin Multiparticle-Hole Excitations in 148Eu

NUCLEAR REACTIONS 130Te(27Al, 5nα), E=155 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 148Eu deduced high-spin levels, J, π, configurations. Gammasphere, Microball arrays.

doi: 10.1007/s100500170138
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2000CH04      Phys.Rev. C61, 034318 (2000)

C.J.Chiara, S.J.Asztalos, B.Busse, R.M.Clark, M.Cromaz, M.A.Deleplanque, R.M.Diamond, P.Fallon, D.B.Fossan, D.G.Jenkins, S.Juutinen, N.S.Kelsall, R.Krucken, G.J.Lane, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod, G.Schmid, J.M.Sears, J.F.Smith, F.S.Stephens, K.Vetter, R.Wadsworth, S.Frauendorf

Shears Mechanism in 109Cd

NUCLEAR REACTIONS 96Zr(18O, 5n), E=70 MeV; measured Eγ, Iγ, γγ-coin, DSA. 109Cd deduced high-spin levels, J, π, T1/2, B(E2), B(M1), configurations, shears mechanism. Gammasphere array. Tilted-axis-cranking analysis.

doi: 10.1103/PhysRevC.61.034318
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2000CO06      J.Phys.(London) G26, 23 (2000)

J.F.C.Cocks, P.A.Butler, K.J.Cann, P.T.Greenlees, G.D.Jones, J.F.Smith, P.M.Jones, R.Julin, S.Juutinen, D.Muller, M.Piiparinen, A.Savelius, R.Broda, B.Fornal, I.Ahmad, D.J.Blumenthal, M.P.Carpenter, B.Crowell, R.V.F.Janssens, T.L.Khoo, T.Lauritsen, D.Nisius, S.Asztalos, R.M.Clark, M.A.Deleplanque, R.M.Diamond, P.Fallon, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod, F.S.Stephens, P.Bhattacharyya, C.T.Zhang

Multi-Nucleon Transfer Reactions as a Tool for Spectroscopy of Heavy Nuclei

NUCLEAR REACTIONS 232Th(56Fe, X), E=362 MeV; 232Th(86Kr, X), E=511 MeV; 232Th(136Xe, X), E=830, 833 MeV; measured Eγ, Iγ(θ), γγ-coin; deduced transfer products yields and highest angular momentum value. GAMMASPHERE and other Ge detector arrays.

doi: 10.1088/0954-3899/26/2/102
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2000CU01      Nucl.Phys. A673, 3 (2000)

D.M.Cullen, A.T.Reed, D.E.Appelbe, A.N.Wilson, E.S.Paul, M.H.Bergstrom, J.F.Sharpey-Schafer, C.Baktash, I.Frosch, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod, D.Prevost, Ch.Theisen, D.Curien

High-Spin States and Lifetime Measurements in 171Hf

NUCLEAR REACTIONS 160Gd(18O, 7n), E=106 MeV; measured Eγ, Iγ, γγ-coin. 128Te(48Ca, 5n), E=200 MeV; measured Eγ, Iγ, γγ-coin, DSA. 171Hf deduced high-spin levels, J, π, B(M1)/B(E2), configurations, T1/2, transition quadrupole moments, deformations. Eurogam, Gammasphere arrays. Comparisons with cranked mean field calculations.

doi: 10.1016/S0375-9474(00)00061-0
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2000ID01      Phys.Lett. 492B, 245 (2000)

E.Ideguchi, B.Cederwall, R.Wyss, T.Back, K.Lagergren, A.Johnson, W.Klamra, J.Cederkall, M.Devlin, J.Elson, D.R.LaFosse, F.Lerma, D.G.Sarantites, V.Tomov, M.Hausmann, A.Jungclaus, D.R.Napoli, M.P.Carpenter, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, C.J.Lister, D.Seweryniak, I.Wiedenhoever, R.M.Clark, P.Fallon, I.Y.Lee, A.O.Macchiavelli, R.W.Macleod

Superdeformation in 91Tc

NUCLEAR REACTIONS 58Ni(40Ca, 3pα), E=185 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (neutron)γ-, (recoil)γ-coin. 91Tc deduced high-spin levels, superdeformed band, transition quadrupole moment, configurations. Gammasphere, Microball arrays, cranked mean-field calculations. Comparisons with other sperdeformed nuclides.

doi: 10.1016/S0370-2693(00)01114-X
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2000MC01      Phys.Rev. C61, 031304 (2000)

D.P.McNabb, J.A.Cizewski, T.L.Khoo, T.Lauritsen, K.Hauschild, K.Y.Ding, N.Fotiades, W.Younes, D.E.Archer, R.W.Bauer, J.A.Becker, L.A.Bernstein, R.M.Clark, M.A.Deleplanque, R.M.Diamond, P.Fallon, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod, F.S.Stephens, A.Lopez-Martens, W.H.Kelly

Quasicontinuous Decay Spectra of Superdeformed Bands in 192, 194Pb and Energy Gaps in Level Density at Moderate Angular Momenta

NUCLEAR REACTIONS 174Yb(25Mg, 5n), E=130.0 MeV; 173Yb(24Mg, 5n), E=134.5 MeV; measured Eγ, Iγ, γγ-coin. 192,194Pb deduced superdeformed band decay quasicontinuum transitions, level density features. Constant temperature level density model.

doi: 10.1103/PhysRevC.61.031304
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1999AM04      J.Phys.(London) G25, 831 (1999)

N.Amzal, J.F.C.Cocks, P.A.Butler, K.J.Cann, P.T.Greenlees, G.D.Jones, S.Asztalos, R.M.Clark, M.A.Deleplanque, R.M.Diamond, P.Fallon, I.Y.Lee, A.O.Machiavelli, R.W.MacLeod, F.S.Stephens, P.M.Jones, R.Julin, R.Broda, B.Fornal, J.F.Smith, T.Lauritsen, P.Bhattacharyya, C.T.Zhang

Spectroscopic Study of 228-234Th Nuclei using Multi-Nucleon Transfer Reactions

NUCLEAR REACTIONS 232Th(136Xe, X), E=833 MeV; measured Eγ, Iγ, γγ-coin. 228,230,234Th deduced high-spin levels, J, π, possible octupole vibration. Gammasphere array, multi-nucleon transfer reactions.

doi: 10.1088/0954-3899/25/4/048
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1999BB13      Eur.Phys.J. A 6, 391 (1999)

T.Back, B.Cederwall, R.Wyss, A.Johnson, J.Cederkall, M.Devlin, J.Elson, D.R.LaFosse, F.Lerma, D.G.Sarantites, R.M.Clark, P.Fallon, I.Y.Lee, A.O.Macchiavelli, R.W.Macleod

Observation of Superdeformed States in 88Mo

NUCLEAR REACTIONS 58Ni(40Ca, 2p2α), E=185 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, fractional Doppler shifts. 88Mo deduced superdeformed band transitions, transition quadrupole moments, configurations, deformation. Gammasphere, Microball arrays. Cranked mean-field calculations.

doi: 10.1007/s100500050361
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1999BO03      Phys.Rev. C59, 1113 (1999)

C.J.Bowers, S.J.Freedman, B.Fujikawa, A.O.Macchiavelli, R.W.MacLeod, J.Reich, S.Q.Shang, P.A.Vetter, E.Wasserman

New Measurement of the β-γ Directional Correlation in 22Na

RADIOACTIVITY 22Na(β+); measured Eγ, Iγ, Eβ, Iβ, βγ-coin, directional correlations; deduced recoil-order form factors, second-class currents. Gammasphere array.

doi: 10.1103/PhysRevC.59.1113
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1999CE09      Eur.Phys.J. A 6, 251 (1999)

B.Cederwall, T.Back, R.Wyss, A.Johnson, J.Cederkall, M.Devlin, J.Elson, D.R.LaFosse, F.Lerma, D.G.Sarantites, R.M.Clark, P.Fallon, I.Y.Lee, A.O.Macchiavelli, R.W.Macleod

Favoured Superdeformed States in 89Tc

NUCLEAR REACTIONS 58Ni(40Ca, p2α), E=185 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, residual Doppler shift. 89Tc deduced superdeformed band, transition quadrupole moment, configuration. Gammasphere, Microball arrays.

NUCLEAR STRUCTURE 89Tc, 88Ru, 88Mo; calculated energy vs spin, total Routhian surfaces. Cranked mean-field approach.

doi: 10.1007/s100500050343
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1999CL03      Phys.Rev.Lett. 82, 3220 (1999)

R.M.Clark, S.J.Asztalos, B.Busse, C.J.Chiara, M.Cromaz, M.A.Deleplanque, R.M.Diamond, P.Fallon, D.B.Fossan, D.G.Jenkins, S.Juutinen, N.Kelsall, R.Krucken, G.J.Lane, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod, G.Schmid, J.M.Sears, J.F.Smith, F.S.Stephens, K.Vetter, R.Wadsworth, S.Frauendorf

Shears Mechanism in the A ∼ 110 Region

NUCLEAR REACTIONS 96Zr(18O, 4n), E=70 MeV; measured Eγ, Iγ, γγ-coin, DSA. 110Cd deduced transitions T1/2, B(M1), magnetic-rotational band. Tilted axis cranking analysis.

doi: 10.1103/PhysRevLett.82.3220
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1999CO02      Nucl.Phys. A645, 61 (1999)

J.F.C.Cocks, D.Hawcroft, N.Amzal, P.A.Butler, K.J.Cann, P.T.Greenlees, G.D.Jones, S.Asztalos, R.M.Clark, M.A.Deleplanque, R.M.Diamond, P.Fallon, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod, F.S.Stephens, P.Jones, R.Julin, R.Broda, B.Fornal, J.F.Smith, T.Lauritsen, P.Bhattacharyya, C.T.Zhang

Spectroscopy of Rn, Ra and Th Isotopes using Multi-Nucleon Transfer Reactions

NUCLEAR REACTIONS 232Th(136Xe, X), E=833 MeV; measured Eγ, Iγ, γγ-coin. 218,220,222Rn, 222,224,226,228Ra, 228,230,234Th deduced high-spin levels, J, π, B(E1)/B(E2), octupole deformation. Multi-nucleon transfer reactions.

doi: 10.1016/S0375-9474(98)00586-7
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1999CU02      Phys.Rev. C60, 064301 (1999)

D.M.Cullen, S.L.King, A.T.Reed, J.A.Sampson, P.M.Walker, C.Wheldon, F.Xu, G.D.Dracoulis, I.-Y.Lee, A.O.Macchiavelli, R.W.MacLeod, A.N.Wilson, C.Barton

High-K Multiquasiparticle Configurations and Limiting Moments of Inertia in 178W

NUCLEAR REACTIONS 170Er(13C, 5n), E=83, 86 MeV; measured Eγ, Iγ, γγ-coin. 178W deduced high-spin levels, J, π, gK-gR, high-K intrinsic states, configurations, moments of inertia. Gammasphere array. Comparison with model calculations.

doi: 10.1103/PhysRevC.60.064301
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1999DE20      Phys.Rev.Lett. 82, 5217 (1999)

M.Devlin, A.V.Afanasjev, R.M.Clark, D.R.LaFosse, I.Y.Lee, F.Lerma, A.O.Macchiavelli, R.W.MacLeod, I.Ragnarsson, P.Ring, D.Rudolph, D.G.Sarantites, P.G.Thirolf

Superdeformation in 68Zn: Evidence for a new, neutron-rich island of superdeformation in A ≈ 70 nuclei

NUCLEAR REACTIONS 26Mg(48Ca, 2nα), E=157 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 68Zn deduced superdeformed band transitions, configurations, quadrupole moment, deformation. Gammasphere, Microball arrays, residual Doppler shift technique. Cranked mean-field calculations.

doi: 10.1103/PhysRevLett.82.5217
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1999FO02      Phys.Rev. C59, 2919 (1999)

N.Fotiades, J.A.Cizewski, C.J.Lister, C.N.Davids, R.V.F.Janssens, D.Seweryniak, M.P.Carpenter, T.L.Khoo, T.Lauritsen, D.Nisius, P.Reiter, J.Uusitalo, I.Wiedenhover, A.O.Macchiavelli, R.W.MacLeod

Deformed Negative-Parity Excitations in 71As

NUCLEAR REACTIONS 58Ni(16O, 3p), E=59.5 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 71As deduced high-spin levels, J, π, rotational bands features. Gammasphere array, recoil mass separation. Cranked Nilsson model calculations.

doi: 10.1103/PhysRevC.59.2919
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1999FO14      Phys.Rev. C60, 057302 (1999)

N.Fotiades, J.A.Cizewski, C.J.Lister, C.N.Davids, R.V.F.Janssens, D.Seweryniak, M.P.Carpenter, T.L.Khoo, T.Lauritsen, D.Nisius, P.Reiter, J.Uusitalo, I.Wiedenhover, A.O.Macchiavelli, R.W.MacLeod

Odd-Even Staggering in the πg9/2νg9/2 Band in 72Br

NUCLEAR REACTIONS 58Ni(16O, np), E=59.5 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 72Br deduced high-spin levels, possible J, π, configurations, signature splitting. Gammasphere array, fragment mass analyzer.

doi: 10.1103/PhysRevC.60.057302
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1999FU04      Phys.Lett. 449B, 6 (1999)

B.K.Fujikawa, S.J.Asztalos, R.M.Clark, M.-A.Deleplanque-Stephens, P.Fallon, S.J.Freedman, J.P.Greene, I.-Y.Lee, L.J.Lising, A.O.Macchiavelli, R.W.MacLeod, J.C.Reich, M.A.Rowe, S.-Q.Shang, F.S.Stephens, E.G.Wasserman

A New Measurement of the Strength of the Superallowed Fermi Branch in the Beta Decay of 10C with GAMMASPHERE

RADIOACTIVITY 10C(β+) [from 10B(p, n), E=8 MeV]; measured β-delayed Eγ, Iγ; deduced superallowed transition branching ratio. Gammasphere array.

doi: 10.1016/S0370-2693(98)01603-7
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1999JO01      Nucl.Phys. A645, 47 (1999)

K.Jonsson, B.Cederwall, A.Johnson, R.Wyss, T.Back, J.Cederkall, M.Devlin, J.Elson, D.R.LaFosse, F.Lerma, D.G.Sarantites, R.M.Clark, I.Y.Lee, A.O.Macchiavelli, R.W.Macleod

Collective Excitations and Band Termination in 85Nb

NUCLEAR REACTIONS 58Ni(40Ca, p3α), E=185 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 85Nb deduced high-spin levels, J, π, rotational bands features, B(M1)/B(E2). Cranked mean field calculations.

doi: 10.1016/S0375-9474(98)00603-4
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1999LE56      Phys.Rev.Lett. 83, 5447 (1999)

F.Lerma, M.Devlin, D.R.LaFosse, D.G.Sarantites, R.Wyss, C.Baktash, R.M.Clark, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod, D.Soltysik, S.L.Tabor

Accurate Lifetime Measurements of Superdeformed Bands in A ∼ 80 Nuclei

NUCLEAR REACTIONS 58Ni(28Si, 2pα), (28Si, 4p), (28Si, 3p), E=130 MeV; 58Ni(29Si, 2pα), (29Si, n2p), (29Si, 4p), E=130 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. 80,81,82,83Sr, 83Y, 84Zr deduced superdeformed bands T1/2, average transition quadrupole moments, configurations, deformations.

doi: 10.1103/PhysRevLett.83.5447
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1999RO18      Phys.Lett. 465B, 61 (1999)

S.J.Robinson, M.M.Hindi, H.G.Borner, Y.D.Chan, D.E.DiGregorio, C.Doll, M.R.Dragowsky, M.K.Harder, M.C.P.Isaac, K.S.Krane, R.-M.Larimer, A.O.Macchiavelli, R.W.Macleod, P.Miocinovic, E.B.Norman, A.Shadkam, K.Zaerpoor

Quadrupole-Octupole Coupled States in 144Nd

NUCLEAR REACTIONS 143Nd(n, γ), E=reactor; measured Doppler-broadened Eγ, Iγ. 144Nd deduced levels T1/2, B(λ), configurations, quadrupole-octupole coupling. Gamma-ray-induced Doppler-broadening technique.

RADIOACTIVITY 144Pm(EC); measured Eγ, Iγ, γγ-coin. 144Nd deduced levels, J, π, B(λ), δ, quadrupole-octupole coupling. Gammasphere array.

doi: 10.1016/S0370-2693(99)01027-8
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1999SC27      Nucl.Instrum.Methods Phys.Res. A430, 69 (1999); Erratum Nucl.Instrum.Methods Phys.Res. A434, 481 (1999)

G.J.Schmid, M.A.Deleplanque, I.Y.Lee, F.S.Stephens, K.Vetter, R.M.Clark, R.M.Diamond, P.Fallon, A.O.Macchiavelli, R.W.MacLeod

A γ-Ray Tracking Algorithm for the GRETA Spectrometer

doi: 10.1016/S0168-9002(99)00188-6
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1999ZA08      Phys.Rev. C59, 3393 (1999)

K.Zaerpoor, Y.D.Chan, M.R.Dragowsky, M.C.P.Isaac, K.S.Krane, R.-M.Larimer, A.O.Macchiavelli, R.W.Macleod, E.B.Norman

Cosmic-Ray Half-Life of 56Ni

RADIOACTIVITY 56Ni(EC), (β+); measured Eγ, Iγ, γγ-, βγ-coin; deduced upper limit for positron decay branch. Gammasphere array.

doi: 10.1103/PhysRevC.59.3393
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1999ZA19      Nucl.Phys. (Supplement) A654, 916c (1999)

K.Zaerpoor, Y.D.Chan, D.E.DiGregorio, M.R.Dragowsky, M.M.Hindi, M.C.P.Isaac, K.S.Krane, R.-M.Larimer, A.O.Macchiavelli, R.W.Macleod, P.Miocinovic, E.B.Norman, S.J.Robinson

Cosmic-Ray History Derived from the 54Mn, 56Ni and 144Pm Chronometers

RADIOACTIVITY 54Mn(β+); measured β+ decay branching ratio, partial T1/2; deduced log ft. 56Ni, 144Pm(β+); measured β+ decay branching ratio upper limits, partial T1/2 lower limits. Gammasphere array, implications for cosmic-ray physics discussed.

doi: 10.1016/S0375-9474(00)88572-3
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1998BU03      Phys.Rev. C57, R1017 (1998)

B.C.Busse, P.Fallon, R.Krucken, D.Ackermann, I.Ahmad, S.J.Asztalos, D.J.Blumenthal, M.P.Carpenter, R.M.Clark, M.A.Deleplanque, R.M.Diamond, S.M.Fischer, F.Hannachi, R.V.F.Janssens, T.L.Khoo, A.Korichi, T.Lauritsen, I.Y.Lee, A.Lopez-Martens, A.O.Macchiavelli, R.W.MacLeod, E.F.Moore, D.Nisius, G.Schmid, D.Seweryniak, F.S.Stephens, K.Vetter

Lifetime Measurements of Yrast and Excited Superdeformed Bands in 192,193Hg

NUCLEAR REACTIONS 176Yb(22Ne, 5n), (22Ne, 6n), E=118 MeV; measured Eγ, Iγ, γγ-coin, DSA. 192,193Hg deduced superdeformed bands T1/2, average quadrupole moments, configurations.

doi: 10.1103/PhysRevC.57.R1017
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1998CL06      Phys.Lett. 440B, 251 (1998)

R.M.Clark, R.Krucken, S.J.Asztalos, J.A.Becker, B.Busse, S.Chmel, M.A.Deleplanque, R.M.Diamond, P.Fallon, D.Jenkins, K.Hauschild, I.M.Hibbert, H.Hubel, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod, G.Schmid, F.S.Stephens, U.J.van Severen, K.Vetter, R.Wadsworth, S.Wan

The Shears Mechanism in the Lead Isotopes

NUCLEAR REACTIONS 172,174,176Yb(26Mg, xn), E=135, 137, 139 MeV; measured Eγ, Iγ, γγ-coin, DSA. 193,194,195,196,197Pb deduced rotational bands transitions T1/2, B(M1), shears mechanism. Magnetic rotation, tilted axis cranking.

doi: 10.1016/S0370-2693(98)01179-4
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1998CU04      Nucl.Phys. A638, 662 (1998)

D.M.Cullen, A.T.Reed, D.E.Appelbe, A.N.Wilson, E.S.Paul, R.M.Clark, P.Fallon, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod

High-K Decays and Lifetime Measurements in 172Hf

NUCLEAR REACTIONS 128Te(48Ca, 4n), E=200 MeV; measured Eγ, Iγ, γγ(θ), DSA. 172Hf deduced high-spin levels, J, π, T1/2, band structure, high-K isomers, g(K)-g(R), quadrupole moments, hindrance factors. Comparison with Woods-Saxon cranking calculations. Enriched targets, Gammasphere spectrometer.

doi: 10.1016/S0375-9474(98)00329-7
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1998FO02      Phys.Rev. C57, 1624 (1998)

N.Fotiades, J.A.Cizewski, D.P.McNabb, K.Y.Ding, D.E.Archer, J.A.Becker, L.A.Bernstein, K.Hauschild, W.Younes, R.M.Clark, P.Fallon, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod

Weak Coupling and Dipole Bands in 191Pb

NUCLEAR REACTIONS 173Yb(24Mg, 6n), E=134.5 MeV; measured Eγ, Iγ, γγ(θ). 191Pb deduced high-spin levels, J, π, configurations, M1 dipole bands. Comparison with other Pb isotopes.

doi: 10.1103/PhysRevC.57.1624
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1998FO08      Phys.Rev. C58, 1997 (1998)

N.Fotiades, J.A.Cizewski, D.P.McNabb, K.Y.Ding, D.E.Archer, J.A.Becker, L.A.Bernstein, K.Hauschild, W.Younes, R.M.Clark, P.Fallon, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod

High-Spin Excitations in Ru Nuclei Near N = 60

NUCLEAR REACTIONS 173Yb(24Mg, X), E=134.5 MeV; measured Eγ, Iγ, γγ-coin following compound nucleus fission. 103,105Ru deduced high-spin levels, J, π, configurations. 104,106Ru deduced transitions. Alignment systematics for Ru isotopes discussed.

doi: 10.1103/PhysRevC.58.1997
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1998HA02      Phys.Rev. C57, 442 (1998)

D.S.Haslip, S.Flibotte, G.de France, M.Devlin, A.Galindo-Uribarri, G.Gervais, D.R.LaFosse, I.Y.Lee, F.Lerma, A.O.Macchiavelli, R.W.MacLeod, S.M.Mullins, J.M.Nieminen, D.G.Sarantites, C.E.Svensson, J.C.Waddington, J.N.Wilson

Superdeformation in 145Sm

NUCLEAR REACTIONS 124Sn(29Si, 4nα), E=158 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 145Sm deduced high-spin levels, superdeformed bands, configurations. Cranked shell-model analysis.

doi: 10.1103/PhysRevC.57.442
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1998HA21      Phys.Rev. C57, 2196 (1998)

D.S.Haslip, N.Kintz, S.Flibotte, R.A.E.Austin, G.de France, M.Devlin, Ch.Finck, A.Galindo-Uribarri, G.Gervais, D.R.LaFosse, T.J.Lampman, I.Y.Lee, F.Lerma, A.O.Macchiavelli, R.W.MacLeod, S.M.Mullins, J.M.Nieminen, T.Rodinger, D.G.Sarantites, O.Stezowski, C.E.Svensson, J.P.Vivien, J.C.Waddington, D.Ward, N.Wilson

Superdeformation in 147,148Eu: Identical bands and π61-π63 Crossings

NUCLEAR REACTIONS 124Sn(29Si, 4np), E=158 MeV; 130Te(23Na, 6n), E=145 MeV; measured Eγ, Iγ, (charged particle)γ-, γγ-coin. 147,148Eu deduced high-spin levels, superdeformed bands, configurations, band crossing.

doi: 10.1103/PhysRevC.57.2196
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1998HW02      J.Phys.(London) G24, L9 (1998)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, L.K.Peker, J.Kormicki, B.R.S.Babu, T.N.Ginter, C.J.Beyer, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.O.Rasmussen, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, R.W.Macleod, J.Gilat, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, M.A.Stoyer, L.A.Bernstein, R.W.Lougheed, K.J.Moody, S.G.Prussin, H.C.Griffin, R.Donangelo

Close Doublet Structures in 103Mo, 109,111Ru, and Neighbours: Rotation-alignment for the half-filled h11/2 subshell ( Question )

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 103,105Mo, 109,111Ru deduced levels, band structure, possible J, π, configurations, evidence for rotation alignment. Comparison with other nuclei.

doi: 10.1088/0954-3899/24/5/009
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1998HW04      Phys.Rev. C57, 2250 (1998); Erratum Phys.Rev. C58, 3013 (1998)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, L.K.Peker, J.Kormicki, B.R.S.Babu, T.N.Ginter, C.J.Beyer, J.O.Rasmussen, J.Gilat, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, R.W.Macleod, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, M.A.Stoyer, L.A.Bernstein, R.W.Lougheed, K.J.Moody, S.G.Prussin, H.C.Griffin, R.Donangelo, S.J.Zhu

Identification of the γ Transitions in Tc and Cs Products of 252Cf Fission and Possible (7/2)+ [413] Bands in 105-109Tc Isotopes

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 105Tc deduced high-spin levels, J, π, rotational bands. 106,107,108,109Tc deduced levels, possible J, π. 139,140,141,142,143Cs deduced levels.

doi: 10.1103/PhysRevC.57.2250
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1998IS10      Phys.Rev.Lett. 81, 2416 (1998); Erratum Phys.Rev.Lett. 82, 2220 (1999)

M.C.P.Isaac, Y.D.Chan, R.Clark, M.A.Deleplanque, M.R.Dragowsky, P.Fallon, I.D.Goldman, R.-M.Larimer, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod, K.Nishiizumi, E.B.Norman, L.S.Schroeder, F.S.Stephens

Search for Strange Matter by Heavy Ion Activation

doi: 10.1103/PhysRevLett.81.2416
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1998NI06      Phys.Rev. C58, R1 (1998)

J.M.Nieminen, S.Flibotte, G.Gervais, D.S.Haslip, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod, O.Stezowski, C.E.Svensson, J.C.Waddington, J.N.Wilson

Population of Superdeformed Bands at Extreme Angular Momenta

NUCLEAR REACTIONS 76Ge(76Ge, 5n), E=323 MeV; 124Sn(28Si, 5n), E=152 MeV; measured Eγ, Iγ, γγ-coin. 147Gd deduced superdeformed band intensity, population enhancement in symmetric reaction.

doi: 10.1103/PhysRevC.58.R1
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1998RA09      Phys.Rev. C57, 2370 (1998)

A.V.Ramayya, J.H.Hamilton, J.K.Hwang, L.K.Peker, J.Kormicki, B.R.S.Babu, T.N.Ginter, A.Sandulescu, A.Florescu, F.Carstoiu, W.Greiner, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.O.Rasmussen, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, R.W.Macleod, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, M.A.Stoyer, L.A.Bernstein, R.W.Lougheed, K.J.Moody, S.G.Prussin, S.J.Zhu, H.C.Griffin, R.Donangelo

Cold (Neutronless) α Ternary Fission of 252Cf

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin; deduced α-associated ternary fission isotopic yields.

doi: 10.1103/PhysRevC.57.2370
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1998SA01      Phys.Rev. C57, R1 (1998)

D.G.Sarantites, D.R.LaFosse, M.Devlin, F.Lerma, V.Q.Wood, J.X.Saladin, D.F.Winchell, C.Baktash, C.-H.Yu, P.Fallon, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod, A.V.Afanasjev, I.Ragnarsson

Triaxial Superdeformed Bands in 86Zr

NUCLEAR REACTIONS 58Ni(31P, 3p), E=134 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 86Zr deduced high-spin levels, J, π, superdeformed bands, configurations, transition quadrupole moments. Fractional Doppler shift analysis. TRS calculations.

doi: 10.1103/PhysRevC.57.R1
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1998SC44      Nucl.Instrum.Methods Phys.Res. A417, 95 (1998)

G.J.Schmid, A.O.Macchiavelli, S.J.Asztalos, R.M.Clark, M.A.Deleplanque, R.M.Diamond, P.Fallon, R.Kruecken, I.Y.Lee, R.W.MacLeod, F.S.Stephens, K.Vetter

Gamma-Ray Polarization Sensitivity of the Gammasphere Segmented Germanium Detectors

NUCLEAR REACTIONS 24Mg, 56Fe, 109Ag(p, p'γ), E ≈ 2.5 MeV; measured Eγ, Iγ(θ); deduced detectors polarization sensitivity. 176Yb(26Mg, 5n), E=135 MeV; measured Eγ, Iγ(θ), γγ-coin, γ polarization. 197Pb deduced high-spin levels π, transitions multipolarities. Gammasphere.

doi: 10.1016/S0168-9002(98)00624-X
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1998SV01      Phys.Rev.Lett. 80, 2558 (1998)

C.E.Svensson, C.Baktash, G.C.Ball, J.A.Cameron, M.Devlin, J.Eberth, S.Flibotte, A.Galindo-Uribarri, D.S.Haslip, V.P.Janzen, D.R.LaFosse, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod, J.M.Nieminen, S.D.Paul, D.C.Radford, L.L.Riedinger, D.Rudolph, D.G.Sarantites, H.G.Thomas, J.C.Waddington, D.Ward, W.Weintraub, J.N.Wilson, A.V.Afanasjev, I.Ragnarsson

Smooth Termination of Rotational Bands in 62Zn: Evidence for a loss of collectivity

NUCLEAR REACTIONS 40Ca(28Si, 2pα), E=115 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, fractional Doppler shift. 62Zn deduced high-spin levels, J, π, transition quadrupole moments, configurations, rotational band termination. Cranked shell-model calculations.

doi: 10.1103/PhysRevLett.80.2558
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1998VA18      Phys.Lett. 434B, 14 (1998)

U.J.van Severen, R.M.Clark, R.Krucken, H.Hubel, S.J.Asztalos, J.A.Becker, B.C.Busse, M.A.Deleplanque, R.M.Diamond, P.Fallon, K.Hauschild, I.M.Hibbert, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod, G.Schmid, F.S.Stephens, K.Vetter, R.Wadsworth, S.Wan

Comparative Quadrupole Moments of Superdeformed Bands in 193-196Pb

NUCLEAR REACTIONS 172,174,176Yb(26Mg, xn)192Pb/193Pb/194Pb/195Pb/196Pb/197Pb, E=135-139 MeV; measured Eγ, Iγ, γγ-coin, DSA. 193,194,195,196Pb deduced superdeformed bands T1/2, quadrupole moments, configurations.

doi: 10.1016/S0370-2693(98)00819-3
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1998VE04      Phys.Rev. C58, R2631 (1998)

K.Vetter, A.O.Macchiavelli, D.Cline, H.Amro, S.J.Asztalos, B.C.Busse, R.M.Clark, M.A.Deleplanque, R.M.Diamond, P.Fallon, R.Gray, R.V.F.Janssens, R.Krucken, I.Y.Lee, R.W.MacLeod, E.F.Moore, G.J.Schmid, M.W.Simon, F.S.Stephens, C.Y.Wu

Fragmentation of the Two-Phonon Octupole Vibrational States in 208Pb

NUCLEAR REACTIONS 208Pb(136Xe, 136Xe'), E=650 MeV; measured Eγ, Iγ, γγ-, (particle)γ-coin, γ-ray yields vs projectile scattering angle following Coulomb excitation. 208Pb deduced transition B(E3), fragmentation of two-phonon octupole vibrational strength. Gammasphere, Chico detector arrays.

doi: 10.1103/PhysRevC.58.R2631
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1998ZA03      Phys.Rev. C57, 2046 (1998)

K.Zaerpoor, Y.D.Chan, D.E.DiGregorio, M.R.Dragowsky, M.M.Hindi, M.C.P.Isaac, K.S.Krane, R.M.Larimer, A.O.Macchiavelli, R.W.Macleod, P.Miocinovic, E.B.Norman, S.J.Robinson

Cosmic-Ray Half-Life of 144Pm

RADIOACTIVITY 144Pm(β+), (EC) [from α activation of Pr]; measured decay, annihilation Eγ, Iγ, γγ-coin; deduced β+ branch upper limit.

doi: 10.1103/PhysRevC.57.2046
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1998ZH12      Phys.Rev. C57, 2040 (1998); Erratum Phys.Rev. C58, 3012 (1998)

X.Q.Zhang, J.H.Hamilton, A.V.Ramayya, L.K.Peker, J.K.Hwang, E.F.Jones, J.Kormicki, C.J.Beyer, P.M.Gore, B.R.S.Babu, T.N.Ginter, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, I.Y.Lee, A.O.Macchiavelli, R.W.Macleod, J.O.Rasmussen, J.Gilat, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, Y.X.Dardenne, M.W.Drigert, M.A.Stoyer, J.F.Wild, J.A.Becker, L.A.Bernstein, R.W.Lougheed, K.J.Moody, R.Donangelo, S.G.Prussin, H.C.Griffin, S.J.Zhu

Identification of New Negative-Parity Levels in 152,154Nd

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 152,154Nd deduced high-spin levels, J, π, negative-parity bands.

doi: 10.1103/PhysRevC.57.2040
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1997CL03      Phys.Rev.Lett. 78, 1868 (1997)

R.M.Clark, S.J.Asztalos, G.Baldsiefen, J.A.Becker, L.Bernstein, M.A.Deleplanque, R.M.Diamond, P.Fallon, I.M.Hibbert, H.Hubel, R.Krucken, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod, G.Schmid, F.S.Stephens, K.Vetter, R.Wadsworth, S.Frauendorf

Evidence for ' Magnetic Rotation ' in Nuclei: Lifetimes of states in the M1 bands of 198,199Pb

NUCLEAR REACTIONS 186W(18O, 5n), (18O, 6n), E=99, 104 MeV; measured γγ-energy correlations, Doppler-broadened line shapes, Eγ, Iγ, DSA. 198,199Pb deduced high-spin levels, T1/2, B(λ), magnetic rotation evidence.

doi: 10.1103/PhysRevLett.78.1868
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1997CO08      Phys.Rev.Lett. 78, 2920 (1997)

J.F.C.Cocks, P.A.Butler, K.J.Cann, P.T.Greenlees, G.D.Jones, S.Asztalos, P.Bhattacharyya, R.Broda, R.M.Clark, M.A.Deleplanque, R.M.Diamond, P.Fallon, B.Fornal, P.M.Jones, R.Julin, T.Lauritsen, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod, J.F.Smith, F.S.Stephens, C.T.Zhang

Observation of Octupole Structures in Radon and Radium Isotopes and Their Contrasting Behavior at High Spin

NUCLEAR REACTIONS 232Th(136Xe, X), E=833 MeV; measured γγγ-, γγγγ-coin. 218,220,222Rn, 222,224,226Ra deduced high-spin levels, J, π, intrinsic electric dipole moment to electric quadrupole moment ratio.

doi: 10.1103/PhysRevLett.78.2920
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1997FA04      Phys.Rev. C55, R999 (1997)

P.Fallon, F.S.Stephens, S.Asztalos, B.Busse, R.M.Clark, M.A.Deleplanque, R.M.Diamond, R.Krucken, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod, G.Schmid, K.Vetter, T.Nakatsukasa

Octupole Vibrations and Signature Splitting in Even Mass Hg Superdeformed Bands

NUCLEAR STRUCTURE 190,192,194Hg; analyzed superdeformed bands octupole characteristics.

doi: 10.1103/PhysRevC.55.R999
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1997HA01      Phys.Rev. C55, 148 (1997)

G.Hackman, R.Krucken, R.V.F.Janssens, M.A.Deleplanque, M.P.Carpenter, D.Ackermann, I.Ahmad, H.Amro, S.Asztalos, D.J.Blumenthal, R.M.Clark, R.M.Diamond, P.Fallon, S.M.Fischer, B.Herskind, T.L.Khoo, T.Lauritsen, I.-Y.Lee, R.W.MacLeod, A.O.Macchiavelli, D.Nisius, G.J.Schmid, F.S.Stephens, K.Vetter, R.Wyss

Structure of Superdeformed Bands in 195Hg

NUCLEAR REACTIONS 150Nd(48Ca, xn), E=201 MeV; measured Eγ, γγγ-coin, Iγ. 195Hg deduced high-spin levels, J, π, 4 superdeformed bands, quasiparticle alignments, configurations.

doi: 10.1103/PhysRevC.55.148
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1997HA19      Phys.Rev.Lett. 78, 3447 (1997)

D.S.Haslip, S.Flibotte, G.de France, M.Devlin, A.Galindo-Uribarri, G.Gervais, G.Hackman, D.R.LaFosse, I.Y.Lee, F.Lerma, A.O.Macchiavelli, R.W.MacLeod, S.M.Mullins, J.M.Nieminen, D.G.Sarantites, C.E.Svensson, J.C.Waddington, J.N.Wilson

ΔI = 4 Bifurcation in Identical Superdeformed Bands

NUCLEAR REACTIONS 124Sn(29Si, 4np), (29Si, 5n), E=158 MeV; measured γγγ-coin. 148Gd, 148Eu deduced superdeformed bands, ΔI=4 bifurcation evidence.

doi: 10.1103/PhysRevLett.78.3447
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1997HU12      Z.Phys. A358, 237 (1997)

H.Hubel, G.Baldsiefen, R.M.Clark, S.J.Asztalos, J.A.Becker, L.Bernstein, M.A.Deleplanque, R.M.Diamond, P.Fallon, I.M.Hibbert, R.Krucken, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod, G.Schmid, F.S.Stephens, K.Vetter, R.Wadsworth

Shears Bands in the Pb Region

NUCLEAR REACTIONS 186W(18O, 5n), E=104 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ). 199Pb deduced high-spin levels, J, π, configurations, shears bands, magnetic rotation role in M1 transitions.

doi: 10.1007/s002180050317
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1997HW02      Int.J.Mod.Phys. E6, 331 (1997)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, J.Kormicki, L.K.Peker, B.R.S.Babu, T.N.Ginter, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, I.Y.Lee, A.O.Macchiavelli, R.W.Macleod, J.O.Rasmussen, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, Y.X.Dardenne, M.W.Drigert, M.A.Stoyer, J.F.Wild, J.A.Becker, L.A.Bernstein, R.W.Lougheed, K.J.Moody, R.Donangelo, S.G.Prussin, H.C.Griffin

Identification of the ν3/2-[521] Band in 153Nd and the γ-Transitions in 149Nd

RADIOACTIVITY 252Cf(SF); measured γγ-coin; deduced E2 transition energies in N=93 isotones, N=89 isotones Eγ. 149Nd deduced high-spin level associated transitions. 153Nd deduced high-spin levels, band structure, signature splitting related features, moment of inertia. Other data input.

doi: 10.1142/S0218301397000226
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1997HW03      Phys.Rev. C56, 1344 (1997)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, L.K.Peker, J.Kormicki, B.R.S.Babu, T.N.Ginter, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.O.Rasmussen, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, R.W.Macleod, J.Gilat, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, M.A.Stoyer, Y.X.Dardenne, J.A.Becker, L.A.Bernstein, R.W.Lougheed, K.J.Moody, S.G.Prussin, H.C.Griffin, R.Donangelo

Identification of 109Mo and Possible Octupole Correlations in 107,109Mo

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 107,109Mo deduced high-spin levels, J, π, B(E1)/B(E2), configurations, octupole deformation.

doi: 10.1103/PhysRevC.56.1344
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1997KR03      Phys.Rev. C55, R1625 (1997)

R.Krucken, S.J.Asztalos, J.A.Becker, B.Busse, R.M.Clark, M.A.Deleplanque, A.Dewald, R.M.Diamond, P.Fallon, K.Hauschild, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod, R.Peusquens, G.J.Schmid, F.S.Stephens, K.Vetter, P.von Brentano

Decay Out of the Superdeformed Band in 194Pb: Electromagnetic properties

NUCLEAR REACTIONS 164Dy(34S, 4n), E=166 MeV; measured γγγ-coin, Eγ, recoil distance Doppler shift. 194Pb deduced superdeformed states T1/2, decay features, B(λ), transition quadrupole moment, superdeformed, normal deformed states interaction related features.

doi: 10.1103/PhysRevC.55.R1625
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1997LE17      Phys.Rev. C56, R1671 (1997)

F.Lerma, D.R.LaFosse, M.Devlin, D.G.Sarantites, S.Asztalos, R.M.Clark, P.Fallon, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod, C.Baktash, M.J.Brinkman, D.Rudolph

Search for Linking Transitions in 143Eu

NUCLEAR REACTIONS 100Mo(51V, 4nα), E=230 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 143Eu deduced high-spin levels, superdeformed band properties, linking transition to normal-deformed band.

doi: 10.1103/PhysRevC.56.R1671
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1997MC02      Phys.Rev. C56, 2474 (1997)

D.P.McNabb, J.A.Cizewski, K.Y.Ding, N.Fotiades, D.E.Archer, J.A.Becker, L.A.Bernstein, K.Hauschild, W.Younes, R.M.Clark, P.Fallon, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod

Decay and Properties of the Yrast Superdeformed Band in 192Pb

NUCLEAR REACTIONS 173Yb(24Mg, 5n), E=134.5 MeV; measured Eγ, Iγ, γγ-coin. 192Pb deduced high-spin, superdeformed levels, band structure, possible discrete linking transition.

doi: 10.1103/PhysRevC.56.2474
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1997RA39      Nuovo Cim. 110A, 1073 (1997)

A.V.Ramayya, J.H.Hamilton, J.K.Hwang, L.K.Peker, J.Kormicki, B.R.S.Babu, T.N.Ginter, A.Sandulescu, A.Florescu, F.Carstoiu, W.Greiner, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.O.Rasmussen, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, R.W.MacLeod, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, M.A.Stoyer, L.A.Bernstein, R.W.Lougheed, K.J.Moody, S.G.Prussin, S.J.Zhu, H.C.Griffin, R.Donangelo

Cold Binary and Ternary Fragmentations in Spontaneous Fission of 252Cf

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin; deduced fragment isotopic yields, binary, α-associated ternary events features.

doi: 10.1007/BF03035948
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13698.


1997SV02      Phys.Rev.Lett. 79, 1233 (1997)

C.E.Svensson, C.Baktash, J.A.Cameron, M.Devlin, J.Eberth, S.Flibotte, D.S.Haslip, D.R.LaFosse, I.Y.Lee, A.O.Macchiavelli, R.W.MacLeod, J.M.Nieminen, S.D.Paul, L.L.Riedinger, D.Rudolph, D.G.Sarantites, H.G.Thomas, J.C.Waddington, W.Weintraub, J.N.Wilson, A.V.Afanasjev, I.Ragnarsson

Observation and Quadrupole-Moment Measurement of the First Superdeformed Band in the A ∼ 60 Mass Region

NUCLEAR REACTIONS 40Ca(28Si, 2pα), E=125 MeV; measured γγ-coin. 62Zn deduced high-spin levels, J, π, band structure, quadrupole moment, deformation, superdeformation features.

doi: 10.1103/PhysRevLett.79.1233
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1997VE05      Phys.Rev. C56, 2316 (1997)

K.Vetter, A.O.Macchiavelli, S.J.Asztalos, R.M.Clark, M.A.Deleplanque, R.M.Diamond, P.Fallon, R.Krucken, I.Y.Lee, R.W.MacLeod, G.J.Schmid, F.S.Stephens

Population and Detection of Two-Phonon Octupole Vibrational States in 208Pb

NUCLEAR REACTIONS 208Pb(154Sm, 154Sm'), E=1 GeV; measured Eγ, Iγ, γγ-, (particle)γγ-coin. 208Pb deduced no evidence for two-phonon octupole vibration.

doi: 10.1103/PhysRevC.56.2316
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1997WI19      Phys.Rev. C56, 2502 (1997)

J.N.Wilson, S.J.Asztalos, R.A.Austin, B.Busse, R.M.Clark, M.A.Deleplanque, R.M.Diamond, P.Fallon, S.Flibotte, G.Gervais, D.S.Haslip, I.Y.Lee, R.Kruecken, A.O.Macchiavelli, R.W.MacLeod, J.M.Nieminen, G.J.Schmid, F.S.Stephens, O.Stezowski, C.E.Svensson, K.Vetter, J.C.Waddington

Search for Hyperdeformation in 168Yb

NUCLEAR REACTIONS 124Sn(48Ca, xnypzα)165Yb/166Yb/167Yb/168Yb/169Yb/167Tm/163Er/164Er, E=215 MeV; measured Eγ, Iγ, γγ-coin, relative yields. 168Yb deduced no evidence for hyperdeformed states. Monte Carlo simulation, observational sensitivity determined.

doi: 10.1103/PhysRevC.56.2502
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1997ZA07      Phys.Rev.Lett. 79, 4306 (1997); Erratum Phys.Rev.Lett. 82, 2219 (1999)

K.Zaerpoor, Y.D.Chan, D.E.DiGregorio, M.R.Dragowsky, M.M.Hindi, M.C.P.Isaac, K.S.Krane, R.M.Larimer, A.O.Macchiavelli, R.W.Macleod, P.Mincinovic, E.B.Norman

Galactic Confinement Time of Iron-Group Cosmic Rays Derived from the 54Mn Chronometer

RADIOACTIVITY 54Mn(β+); measured positron annihilation associated γγ-coin; deduced β+-decay branching ratio. Astrophysical implications.

doi: 10.1103/PhysRevLett.79.4306
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1996KR13      Phys.Rev. C54, R2109 (1996)

R.Krucken, G.Hackman, M.A.Deleplanque, R.V.F.Janssens, I.Y.Lee, D.Ackermann, I.Ahmad, H.Amro, S.Asztalos, D.J.Blumenthal, M.P.Carpenter, R.M.Clark, R.M.Diamond, P.Fallon, S.M.Fischer, B.Herskind, T.L.Khoo, T.Lauritsen, A.O.Macchiavelli, R.W.MacLeod, D.Nisius, G.J.Schmid, F.S.Stephens, K.Vetter

Test of ΔI = 2 Staggering in the Superdeformed Bands of 194Hg

NUCLEAR REACTIONS 150Nd(48Ca, 4n), E=201 MeV; measured Eγ, Iγ, γγγ-, multifold-coin. 194Hg deduced levels, J, π, superdeformed band properties.

doi: 10.1103/PhysRevC.54.R2109
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1994CL01      Phys.Rev. C50, 84 (1994)

R.M.Clark, R.Wadsworth, H.R.Andrews, C.W.Beausang, M.Bergstrom, S.Clarke, E.Dragulescu, T.Drake, P.J.Dagnall, A.Galindo-Uribarri, G.Hackman, K.Hauschild, I.M.Hibbert, V.P.Janzen, P.M.Jones, R.W.MacLeod, S.M.Mullins, E.S.Paul, D.C.Radford, A.Semple, J.F.Sharpey-Schafer, J.Simpson, D.Ward, G.Zwartz

Recoil Distance Lifetime Measurements of States in the Oblate Dipole Bands of 197,198Pb

NUCLEAR REACTIONS 176Yb(26Mg, xn), E=125 MeV; 186W(18O, xn), E=113 MeV; measured γγ-coin, DSA, Eγ. 197,198Pb deduced high-spin levels B(λ), T1/2, quadrupole moments, γ-branching ratio. Donau-Frauendorf model, tilted axis cranking model. Enriched targets, Ge detection, BGO suppression shields.

doi: 10.1103/PhysRevC.50.84
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