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NSR database version of April 11, 2024.

Search: Author = J.R.Hughes

Found 58 matches.

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1997IB01      Nucl.Phys. A619, 213 (1997)

R.W.Ibbotson, C.A.White, T.Czosnyka, P.A.Butler, N.Clarkson, D.Cline, R.A.Cunningham, M.Devlin, K.G.Helmer, T.H.Hoare, J.R.Hughes, G.D.Jones, A.E.Kavka, B.Kotlinski, R.J.Poynter, P.H.Regan, E.G.Vogt, R.Wadsworth, D.L.Watson, C.Y.Wu

Quadrupole and Octupole Collectivity in 148Nd

NUCLEAR REACTIONS 148Nd(58Ni, 58Ni), E=200 MeV; measured (projectile)(recoil)-coin, (projectile)γ-coin following Coulomb excitation. 148Nd(92Mo, 92Mo'), E=330 MeV; measured (projectile)γ-coin following Coulomb excitation. 208Pb(148Nd, 148Nd'), E=700 MeV; measured Eγ, Iγ, γ multiplicity following Coulomb excitation. 148Nd levels deduced B(λ), shape, collectivity related features.

doi: 10.1016/S0375-9474(97)00145-0
Citations: PlumX Metrics


1997LA17      Phys.Rev. C56, 760 (1997)

D.R.LaFosse, D.B.Fossan, J.R.Hughes, Y.Liang, H.Schnare, P.Vaska, M.P.Waring, J.-Y.Zhang

Particle-Hole Induced Intruder Bands in 117Sb and 119Sb

NUCLEAR REACTIONS 110Pd(11B, 4n), E=45 MeV; 116Cd(7Li, 4n), E=35 MeV; measured Eγ, Iγ, γγ-coin, DCO. 117,119Sb deduced levels, J, π, configurations, γ-multipolarity. CSM analysis.

doi: 10.1103/PhysRevC.56.760
Citations: PlumX Metrics


1996BA54      Phys.Rev. C54, 1106 (1996)

G.Baldsiefen, M.A.Stoyer, J.A.Cizewski, D.P.McNabb, W.Younes, J.A.Becker, L.A.Bernstein, M.J.Brinkman, L.P.Farris, E.A.Henry, J.R.Hughes, A.Kuhnert, T.F.Wang, B.Cederwall, R.M.Clark, M.A.Deleplanque, R.M.Diamond, P.Fallon, I.Y.Lee, A.O.Macchiavelli, J.Oliveira, F.S.Stephens, J.Burde, D.T.Vo, S.Frauendorf

Shears Bands in 193Pb

NUCLEAR REACTIONS 174Yb(24Mg, 5n), E=129, 131, 134 MeV; measured Eγ, Iγ, directional correlations. 193Pb deduced high-spin levels, J, π, band structure, B(λ), single-particle configurations of M1 bands. Tilted axis cranking model analysis.

doi: 10.1103/PhysRevC.54.1106
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1996BR07      Phys.Rev. C53, R1461 (1996)

M.J.Brinkman, J.A.Becker, I.Y.Lee, L.P.Farris, E.A.Henry, R.W.Hoff, J.R.Hughes, M.A.Stoyer, L.A.Bernstein, J.A.Cizewski, H.Q.Jin, W.Younes, B.Cederwall, M.A.Deleplanque, R.M.Diamond, P.Fallon, A.O.Macchiavelli, F.S.Stephens, W.H.Kelly, D.T.Vo, J.E.Draper, C.Duyar, E.Rubel

Decay from a Superdeformed Band in 194Pb

NUCLEAR REACTIONS 174Yb(25Mg, 5n), E=130 MeV; measured γγ-coin. 194Pb deduced superdeformed band levels J, π, decay features.

doi: 10.1103/PhysRevC.53.R1461
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1996CL01      Phys.Rev. C53, 117 (1996)

R.M.Clark, S.Bouneau, A.N.Wilson, B.Cederwall, F.Azaiez, S.Asztalos, J.A.Becker, L.Bernstein, M.J.Brinkman, M.A.Deleplanque, I.Deloncle, R.M.Diamond, J.Duprat, P.Fallon, L.P.Farris, E.A.Henry, J.R.Hughes, W.H.Kelly, I.Y.Lee, A.O.Macchiavelli, M.G.Porquet, J.F.Sharpey-Schafer, F.S.Stephens, M.A.Stoyer, D.T.Vo

Superdeformation in Bismuth

NUCLEAR REACTIONS 183W(19F, 5n), (19F, 6n), (19F, 7n), E=108 MeV; 181Ta(20Ne, 4n), (20Ne, 5n), (20Ne, 6n), E=123 MeV; measured γγ-coin. 195,196,197Bi deduced superdeformed bands.

doi: 10.1103/PhysRevC.53.117
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1996MC01      Phys.Rev. C53, R541 (1996)

D.P.McNabb, G.Baldsiefen, L.A.Bernstein, J.A.Cizewski, H.-Q.Jin, W.Younes, J.A.Becker, L.P.Farris, E.A.Henry, J.R.Hughes, C.S.Lee, S.J.Asztalos, B.Cederwall, R.M.Clark, M.A.Deleplanque, R.M.Diamond, P.Fallon, I.Y.Lee, A.O.Macchiavelli, F.S.Stephens

Superdeformation in 198Po

NUCLEAR REACTIONS 174Yb(29Si, 5n), E=148 MeV; measured Eγ, Iγ. 198Po deduced superdeformed band levels, dynamic moments of inertia.

doi: 10.1103/PhysRevC.53.R541
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1996SC29      Phys.Rev. C54, 1598 (1996)

H.Schnare, D.R.LaFosse, D.B.Fossan, J.R.Hughes, P.Vaska, K.Hauschild, I.M.Hibbert, R.Wadsworth, V.P.Janzen, D.C.Radford, S.M.Mullins, C.W.Beausang, E.S.Paul, J.DeGraaf, I.-Y.Lee, A.O.Macchiavelli, A.V.Afanasjev, I.Ragnarsson

Smooth Termination of Intruder Bands in 51109Sb

NUCLEAR REACTIONS 54Fe(58Ni, 3p), E=243 MeV; measured γγ-energy correlations, γγγ-coin. 109Sb deduced high-spin levels, J, π, intruder rotational bands, dynamic moments of inertia.

doi: 10.1103/PhysRevC.54.1598
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1996WA12      Phys.Rev. C53, 2763 (1996)

R.Wadsworth, C.W.Beausang, M.Cromaz, J.DeGraaf, T.E.Drake, D.B.Fossan, S.Flibotte, A.Galindo-Uribarri, K.Hauschild, I.M.Hibbert, G.Hackman, J.R.Hughes, V.P.Janzen, D.R.LaFosse, S.M.Mullins, E.S.Paul, D.C.Radford, H.Schnare, P.Vaska, D.Ward, J.N.Wilson, I.Ragnarsson

Smooth Band Termination in 108Sn

NUCLEAR REACTIONS 54Fe(58Ni, 4p), E=243 MeV; measured γγ-coin, Iγ(θ), DCO ratios. 108Sn deduced high-spin levels, rotational bands J, π, dynamic moments of inertia. Enriched targets, Ge detectors, BGO suppression shields, multiplicity filter. Cranked Nilsson-Strutinsky calculations.

doi: 10.1103/PhysRevC.53.2763
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1996WI09      Z.Phys. A355, 129 (1996)

P.Willsau, M.Neffgen, Y.Le Coz, H.Hubel, W.Korten, F.Hannachi, A.Korichi, M.G.Porquet, M.Kaci, N.Redon, M.Meyer, C.W.Beausang, E.S.Paul, J.Simpson, J.R.Hughes

Lifetimes of a Dipole Cascade in 192Hg

NUCLEAR REACTIONS 160Gd(36S, 4n), E=159 MeV; measured γγ-coin, Doppler shift recoil distance. 192Hg deduced high-spin levels, J, π, B(λ), T1/2.

doi: 10.1007/s002180050089
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1995BE31      Phys.Rev. C52, 621 (1995)

L.A.Bernstein, J.A.Cizewski, H.-Q.Jin, W.Younes, R.G.Henry, L.P.Farris, A.Charos, M.P.Carpenter, R.V.F.Janssens, T.L.Khoo, T.Lauritsen, I.G.Bearden, D.Ye, J.A.Becker, E.A.Henry, M.J.Brinkman, J.R.Hughes, A.Kuhnert, T.F.Wang, M.A.Stoyer, R.M.Diamond, F.S.Stephens, M.A.Deleplanque, A.O.Macchiavelli, I.Y.Lee, B.Cederwall, J.R.B.Oliveira, J.Burde, P.Fallon, C.Duyar, J.E.Draper, E.Rubel, D.T.Vo

Onset of Collectivity in Neutron Deficient 196,198Po

NUCLEAR REACTIONS 172Yb(28Si, 4n), E=141, 142, 145 MeV; 174Yb(29Si, 5n), E=141, 146 MeV; measured Eγ, Iγ, γ(θ), γγ-coin, DCO ratios. 196,198Po deduced levels, J, π, γ-multipolarity, B(λ) ratios, γ-ray branching ratios. Single-particle, vibrational phonon models, systematics of the Po isotopes studied.

doi: 10.1103/PhysRevC.52.621
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1995BE36      Phys.Rev. C52, R1171 (1995)

L.A.Bernstein, J.R.Hughes, J.A.Becker, L.P.Farris, E.A.Henry, S.J.Asztalos, B.Cederwall, R.M.Clark, M.A.Deleplanque, R.M.Diamond, P.Fallon, I.Y.Lee, A.O.Macchiavelli, F.S.Stephens, J.A.Cizewski, W.Younes

Superdeformation in 154Er

NUCLEAR REACTIONS 118Sn(40Ar, 4n), E=185 MeV; measured γγ-coin, Eγ, Iγ(θ). 154Er deduced superdeformed band to high-spin states transitions.

doi: 10.1103/PhysRevC.52.R1171
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1995CA15      Phys.Rev. C51, 2400 (1995)

M.P.Carpenter, R.V.F.Janssens, B.Cederwall, B.Crowell, I.Ahmad, J.A.Becker, M.J.Brinkman, M.A.Deleplanque, R.M.Diamond, P.Fallon, L.P.Farris, U.Garg, D.Gassmann, E.A.Henry, R.G.Henry, J.R.Hughes, T.L.Khoo, T.Lauritsen, I.Y.Lee, A.O.Macchiavelli, E.F.Moore, D.Nisius, F.S.Stephens

Identification of the Unfavored N = 7 Superdeformed Band in 191Hg

NUCLEAR REACTIONS 160Gd(36S, 5n), E=172 MeV; 174Yb(22Ne, 5n), E=120 MeV; measured γγ-coin, Eγ, Iγ. 191Hg deduced high-spin levels, J, π, superdeformed bands dynamical moment of inertia. Cranked Woods-Saxon calculations.

doi: 10.1103/PhysRevC.51.2400
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1995CE03      Phys.Lett. 346B, 244 (1995)

B.Cederwall, G.Hackman, A.Galindo-Uribarri, D.C.Radford, J.A.Becker, M.J.Brinkman, M.A.Deleplanque, R.M.Diamond, J.E.Draper, C.Duyar, P.Fallon, L.P.Farris, E.A.Henry, J.R.Hughes, I.Y.Lee, A.O.Macchiavelli, S.M.Mullins, E.Rubel, F.S.Stephens, M.A.Stoyer, J.C.Waddington

Properties of Superdeformed Bands in 153Dy

NUCLEAR REACTIONS 110Pd(48Ca, 5n), E=220 MeV; measured Eγ, Iγ, γγ-coin. 153Dy deduced high-spin levels, J, π, superdeformed band, dynamic moment of inertia.

doi: 10.1016/0370-2693(94)01686-7
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1995CE08      Nucl.Instrum.Methods Phys.Res. A354, 591 (1995)

B.Cederwall, I.Y.Lee, S.Asztalos, M.J.Brinkman, J.A.Becker, R.M.Clark, M.A.Deleplanque, R.M.Diamond, P.Fallon, L.P.Farris, E.A.Henry, J.R.Hughes, A.O.Macchiavelli, F.S.Stephens

Measurement of Ultra-Fast γ-Ray Transitions from Heavy-Ion Compound-Nucleus Reactions

NUCLEAR REACTIONS 110Pd(48Ca, xn), E=220 MeV; analyzed γγ-coin data. 152,153Dy deduced superdeformed bands level T1/2. Target thickness induced Doppler broadering correction method.

doi: 10.1016/0168-9002(94)01468-X
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1995CL01      Phys.Rev. C51, R1052 (1995)

R.M.Clark, S.Bouneau, F.Azaiez, S.Asztalos, J.A.Becker, B.Cederwall, M.A.Deleplanque, R.M.Diamond, J.Duprat, P.Fallon, L.P.Farris, E.A.Henry, J.R.Hughes, W.H.Kelly, I.Y.Lee, A.O.Macchiavelli, M.G.Porquet, J.F.Sharpey-Schafer, F.S.Stephens, M.A.Stoyer, D.T.Vo, A.N.Wilson

Superdeformation in the Bismuth Nuclei

NUCLEAR REACTIONS 183W(19F, xn), E=108 MeV; measured γγ-coin. 196,197Bi deduced tentative high-spin levels, J, π, evidence for superdeformation.

doi: 10.1103/PhysRevC.51.R1052
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1995CL02      Phys.Lett. 343B, 59 (1995)

R.M.Clark, M.A.Deleplanque, B.Cederwall, R.M.Diamond, P.Fallon, I.Y.Lee, A.O.Macchiavelli, F.S.Stephens, J.A.Becker, M.J.Brinkman, L.P.Farris, E.A.Henry, J.R.Hughes, M.A.Stoyer, J.E.Draper, C.Duyar, E.Rubel, H.Hubel, W.Korten, P.Willsau

A Pair of Identical Superdeformed Bands in 136Nd

NUCLEAR REACTIONS 100Mo(40Ar, 4n), E=176, 182 MeV; measured γγγ-coin. 136Nd deduced high-spin levels, J, π, superdeformed bands.

doi: 10.1016/0370-2693(94)01439-J
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1995DE40      Phys.Rev. C52, R2302 (1995)

M.A.Deleplanque, S.Frauendorf, R.M.Clark, R.M.Diamond, F.S.Stephens, J.A.Becker, M.J.Brinkman, B.Cederwall, P.Fallon, L.P.Farris, E.A.Henry, H.Hubel, J.R.Hughes, W.Korten, I.Y.Lee, A.O.Macchiavelli, M.A.Stoyer, P.Willsau, J.E.Draper, C.Duyar, E.Rubel

Low-Spin Termination of the Superdeformed Band in 135Nd

NUCLEAR REACTIONS 100Mo(40Ar, 5n), E=176-182 MeV; measured γγγ-coin, Eγ, Iγ. 135Nd deduced high-spin levels, J, π, superdeformed band decay, termination.

doi: 10.1103/PhysRevC.52.R2302
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1995FA11      Phys.Rev. C51, R2288 (1995)

L.P.Farris, E.A.Henry, J.A.Becker, M.J.Brinkman, B.Cederwall, J.A.Cizewski, M.A.Deleplanque, R.M.Diamond, J.E.Draper, C.Duyar, P.Fallon, J.R.Hughes, W.H.Kelly, I.Y.Lee, A.O.Macchiavelli, E.C.Rubel, F.S.Stephens, M.A.Stoyer, D.T.Vo

Neutron Blocking and Delayed Proton Pair Alignment in Superdeformed 195Pb

NUCLEAR REACTIONS 174Yb(26Mg, 5n), E=130 MeV; measured γγ-coin. 195Pb deduced high-spin levels, J, π, superdeformed bands, transition energies, dynamic moment of inertia.

doi: 10.1103/PhysRevC.51.R2288
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1995HU01      Phys.Rev. C51, R447 (1995)

J.R.Hughes, J.A.Becker, L.A.Bernstein, M.J.Brinkman, L.P.Farris, E.A.Henry, R.W.Hoff, M.A.Stoyer, D.T.Vo, S.Asztalos, B.Cederwall, R.M.Clark, M.A.Deleplanque, R.M.Diamond, P.Fallon, I.Y.Lee, A.O.Macchiavelli, F.S.Stephens

Supedeformation in 193Pb and the Effects of the N = 7 Intruder Orbital

NUCLEAR REACTIONS 174Yb(24Mg, 5n), E=131 MeV; measured Eγ, Iγ(θ). 193Pb deduced superdeformed high-spin band structure.

doi: 10.1103/PhysRevC.51.R447
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1995LA11      Phys.Rev. C51, R2876 (1995)

D.R.LaFosse, D.B.Fossan, J.R.Hughes, Y.Liang, P.Vaska, M.P.Waring, J.-Y.Zhang, R.M.Clark, R.Wadsworth, S.A.Forbes, E.S.Paul

First Observation of a Rotational Band in Odd 50Sn Nuclei: 111Sn

NUCLEAR REACTIONS 64Ni(56Fe, 4npα), E=236 MeV; measured γγγ-coin. 96Ru(19F, n3p), E=90 MeV; measured γγ-coin. 111Sn deduced high-spin levels, band structure, configurations.

doi: 10.1103/PhysRevC.51.R2876
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1995VA22      Phys.Rev. C52, 1270 (1995)

P.Vaska, C.W.Beausang, D.B.Fossan, J.R.Hughes, R.Ma, E.S.Paul, R.J.Poynter, P.H.Regan, R.Wadsworth, S.A.Forbes, S.M.Mullins, P.J.Nolan

High-Spin Structure of 139Eu

NUCLEAR REACTIONS 92Mo(50Cr, 3p), E=220 MeV; measured Eγ, Iγ, γγ(θ). 139Eu deduced high-spin levels, J, π, band structures, configuration. Total routhian surface, cranked shell model calculations.

doi: 10.1103/PhysRevC.52.1270
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1994CE04      Phys.Rev.Lett. 72, 3150 (1994)

B.Cederwall, R.V.F.Janssens, M.J.Brinkman, I.Y.Lee, I.Ahmad, J.A.Becker, M.P.Carpenter, B.Crowell, M.A.Deleplanque, R.M.Diamond, J.E.Draper, C.Duyar, P.Fallon, L.P.Farris, E.A.Henry, R.G.Henry, J.R.Hughes, T.L.Khoo, T.Lauritsen, A.O.Macchiavelli, E.Rubel, F.S.Stephens, M.A.Stoyer, W.Satula, I.Wiedenhoever, R.Wyss

New Features of Superdeformed Bands in 194Hg

NUCLEAR REACTIONS 150Nd(48Ca, 4n), E=206 MeV; measured γγ-coin. 194Hg deduced levels, J, π, superdeformed band properties.

doi: 10.1103/PhysRevLett.72.3150
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1994HU05      Phys.Rev.Lett. 72, 824 (1994)

J.R.Hughes, I.Ahmad, J.A.Becker, M.J.Brinkman, M.P.Carpenter, B.Cederwall, M.A.Deleplanque, R.M.Diamond, J.E.Draper, C.Duyar, P.Fallon, S.Harfenist, E.A.Henry, R.G.Henry, R.W.Hoff, R.V.F.Janssens, T.L.Khoo, T.Lauritsen, I.Y.Lee, E.Rubel, F.S.Stephens, M.A.Stoyer

Lifetime Measurement in Excited and Yrast Superdeformed Bands in 194Hg

NUCLEAR REACTIONS 150Nd(48Ca, 4n), E=205 MeV; measured γγ-coin, DSA. 194Hg deduced superdeformed bands T1/2, average transition quadrupole moments, B(λ).

doi: 10.1103/PhysRevLett.72.824
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1994HU10      Phys.Rev. C50, R1265 (1994)

J.R.Hughes, J.A.Becker, M.J.Brinkman, L.P.Farris, E.A.Henry, R.W.Hoff, M.A.Stoyer, B.Cederwall, M.A.Deleplanque, R.M.Diamond, P.Fallon, I.Y.Lee, A.O.Macchiavelli, F.S.Stephens, J.A.Cizewski, L.A.Bernstein, W.Younes, H.-Q.Jin, J.E.Draper, C.Duyar, E.Rubel, W.H.Kelly, D.T.Vo

Excitations in Doubly-Magic Superdeformed 194Pb

NUCLEAR REACTIONS 174Yb(25Mg, 5n), E=130 MeV; measured Eγ, Iγ, γγ-coin. 194Pb deduced excited superdeformed high-spin bands.

doi: 10.1103/PhysRevC.50.R1265
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1994JA06      Phys.Rev.Lett. 72, 1160 (1994)

V.P.Janzen, D.R.LaFosse, H.Schnare, D.B.Fossan, A.Galindo-Uribarri, J.R.Hughes, S.M.Mullins, E.S.Paul, L.Persson, S.Pilotte, D.C.Radford, I.Ragnarsson, P.Vaska, J.C.Waddington, R.Wadsworth, D.Ward, J.Wilson, R.Wyss

New Features of Collective Nuclear Rotation at Very High Frequency in 109Sb

NUCLEAR REACTIONS 54Fe(58Ni, 3p), E=243 MeV; measured γγ-coin, DSA. 109Sb deduced levels, J, π, γ-branching, band structure, intruder band dynamic moments of inertia, average quadrupole moment, collective features.

doi: 10.1103/PhysRevLett.72.1160
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1994LA19      Phys.Rev. C50, 1819 (1994)

D.R.LaFosse, D.B.Fossan, J.R.Hughes, Y.Liang, H.Schnare, P.Vaska, M.P.Waring, J.-Y.Zhang, R.M.Clark, R.Wadsworth, S.A.Forbes, E.S.Paul, V.P.Janzen, A.Galindo-Uribarri, D.C.Radford, D.Ward, S.M.Mullins, D.Prevost, G.Zwartz

Rotational Bands Near the Z = 50 Closed Shell: 11151Sb

NUCLEAR REACTIONS 96Ru(19F, 2n2p), E=90 MeV; 92Mo(23Na, 2n2p), E=120 MeV; 54Fe(63Cu, 2pα), E=245 MeV; measured γγ-coin, DCO ratios. 111Sb deduced high-spin levels, J, π, rotational bands, configuration. Model comparison.

doi: 10.1103/PhysRevC.50.1819
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1994WA16      Phys.Rev. C50, 483 (1994)

R.Wadsworth, H.R.Andrews, C.W.Beausang, R.M.Clark, J.DeGraaf, D.B.Fossan, A.Galindo-Uribarri, I.M.Hibbert, K.Hauschild, J.R.Hughes, V.P.Janzen, D.R.LaFosse, S.M.Mullins, E.S.Paul, L.Persson, S.Pilotte, D.C.Radford, H.Schnare, P.Vaska, D.Ward, J.N.Wilson, I.Ragnarsson

Rotational Structures in 106Sn: A new form of band termination ( Question )

NUCLEAR REACTIONS 54Fe(58Ni, 2pα), E=243 MeV; measured Eγ, Iγ, γγ-coin. 106Sn deduced high-spin levels, J, π, band structure. Cranked Nilsson model calculation.

doi: 10.1103/PhysRevC.50.483
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1993CE04      Phys.Rev. C47, R2443 (1993)

B.Cederwall, M.-A.Deleplanque, F.Azaiez, R.M.Diamond, P.Fallon, W.Korten, I.-Y.Lee, A.O.Macchiavelli, J.R.B.Oliveira, F.S.Stephens, W.H.Kelly, D.T.Vo, J.A.Becker, M.J.Brinkman, E.A.Henry, J.R.Hughes, A.Kuhnert, M.A.Stoyer, T.F.Wang, J.E.Draper, C.Duyar, E.Rubel, J.deBoer

New Oblate Band in 196Hg with Quenched M1 Strength

NUCLEAR REACTIONS 192Os(9Be, 5n), E=65 MeV; measured γγ-coin. 196Hg deduced levels, J, π, band structure, B(λ) ratio, shape features, configurations.

doi: 10.1103/PhysRevC.47.R2443
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1993HU01      Phys.Rev. C47, R1337 (1993)

J.R.Hughes, Y.Liang, R.V.F.Janssens, A.Kuhnert, J.A.Becker, I.Ahmad, I.G.Bearden, M.J.Brinkman, J.Burde, M.P.Carpenter, J.A.Cizewski, P.J.Daly, M.A.Deleplanque, R.M.Diamond, J.E.Draper, C.Duyar, B.Fornal, U.Garg, Z.W.Grabowski, E.A.Henry, R.G.Henry, W.Hesselink, N.Kalantar-Nayestanaki, W.H.Kelly, T.L.Khoo, T.Lauritsen, R.H.Mayer, D.Nissius, J.R.B.Oliveira, A.J.M.Plompen, W.Reviol, E.Rubel, F.Soramel, F.S.Stephens, M.A.Stoyer, D.Vo, T.F.Wang

Collective Oblate Bands in 196Pb

NUCLEAR REACTIONS 170Er(30Si, 4n), E=142-151 MeV; 176Yb(26Mg, 6n), E=138 MeV; measured γγ-coin. 196Pb deduced levels, J, π, band structure, B(λ) ratio, shape features.

doi: 10.1103/PhysRevC.47.R1337
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1993HU08      Phys.Rev. C48, R2135 (1993)

J.R.Hughes, J.A.Becker, M.J.Brinkman, E.A.Henry, R.W.Hoff, M.A.Stoyer, T.F.Wang, B.Cederwall, M.A.Deleplanque, R.M.Diamond, P.Fallon, I.Y.Lee, J.R.B.Oliveira, F.S.Stephens, J.A.Cizewski, L.A.Bernstein, J.E.Draper, C.Duyar, E.Rubel, W.H.Kelly, D.Vo

Lifetime Measurements in the Regular ΔI = 1 Oblate Band in 197Pb

NUCLEAR REACTIONS 154Sm(48Ca, 5n), E=210 MeV; measured Eγ, Iγ, DSA. 197Pb levels deduced T1/2, B(λ), band configuration features.

doi: 10.1103/PhysRevC.48.R2135
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1993IB01      Phys.Rev.Lett. 71, 1990 (1993)

R.Ibbotson, C.A.White, T.Czosnyka, P.A.Butler, N.Clarkson, D.Cline, R.A.Cunningham, M.Devlin, K.G.Helmer, T.H.Hoare, J.R.Hughes, G.D.Jones, A.E.Kavka, B.Kotlinski, R.J.Poynter, P.Regan, E.G.Vogt, R.Wadsworth, D.L.Watson, C.Y.Wu

Octupole Collectivity in the Ground Band of 148Nd

NUCLEAR REACTIONS 148Nd(58Ni, 58Ni'), E=200 MeV; 148Nd(92Mo, 92Mo'), E=330 MeV; measured (particle)γ-, γγ(particle)-coin following Coulomb excitation. 208Pb(148Nd, 148Nd'), E=700 MeV; measured (particle)γ-coin, γ yields, γ-multiplicity following Coulomb excitation. 148Nd deduced levels, γ-multipolarity, multipole matrix elements, band collectivity features.

doi: 10.1103/PhysRevLett.71.1990
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1993PA03      J.Phys.(London) G19, 343 (1993)

E.S.Paul, R.M.Clark, S.A.Forbes, D.B.Fossan, J.R.Hughes, D.R.LaFosse, P.J.Nolan, P.H.Regan, P.Vaska, R.Wadsworth, M.P.Waring

Band Termination in Doubly Odd 116I

NUCLEAR REACTIONS 92Mo(27Al, n2p), E=125 MeV; measured γγ-coin, Iγ(θ). 116I deduced levels, J, π, configuration, band structure.

doi: 10.1088/0954-3899/19/2/016
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1993PA07      J.Phys.(London) G19, 861 (1993)

E.S.Paul, S.Davis, P.Vaska, P.J.Bishop, S.A.Forbes, D.B.Fossan, Y.-J.He, J.R.Hughes, I.Jenkins, Y.Liang, R.Ma, M.S.Metcalfe, S.M.Mullins, P.J.Nolan, R.J.Poynter, P.H.Regan, R.Wadsworth, N.Xu

Prolate and Oblate Rotational Bands in 136Sm

NUCLEAR REACTIONS 92Mo(50Cr, 2pα), E=220 MeV; measured γγ-coin, γγ(θ), Iγ ratios. 136Sm deduced levels, J, π, rotational bands. Other data input.

NUCLEAR STRUCTURE 134,136,138Sm; calculated total Routhian surface, alignments, dynamic moments of inertia. Cranked Woods-Saxon model.

doi: 10.1088/0954-3899/19/6/007
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1993VO04      Phys.Rev.Lett. 71, 340 (1993)

D.T.Vo, W.H.Kelly, F.K.Wohn, J.C.Hill, M.A.Deleplanque, R.M.Diamond, F.S.Stephens, J.R.B.Oliveira, J.Burde, A.O.Macchiavelli, J.deBoer, B.Cederwall, I.Y.Lee, P.Fallon, J.A.Becker, E.A.Henry, M.J.Brinkman, A.Kuhnert, M.A.Stoyer, J.R.Hughes, J.E.Draper, C.Duyar, E.Rubel

Superdeformation in 191Au

NUCLEAR REACTIONS 186W(11B, 7n), (11B, 6n), (11B, 5n), E=84, 86 MeV; 176Yb(19F, xn), E=100, 105 MeV; measured γγ-coin. 191Au deduced levels, J, π, superdeformed band, dynamic moments of inertia.

doi: 10.1103/PhysRevLett.71.340
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1993WA13      Nucl.Phys. A559, 461 (1993)

R.Wadsworth, H.R.Andrews, R.M.Clark, D.B.Fossan, A.Galindo-Uribarri, J.R.Hughes, V.P.Janzen, D.R.LaFosse, S.M.Mullins, E.S.Paul, D.C.Radford, H.Schnare, P.Vaska, D.Ward, J.N.Wilson, R.Wyss

Intruder Bands in 108Sn

NUCLEAR REACTIONS 54Fe(58Ni, 4p), E=243 MeV; measured Eγ-Eγ correlations, DSA. 108Sn deduced levels J, π, T1/2, band structure, quadrupole moment. Comparison with total routhian surface and Woods-Saxon calculations. Enriched targets, Ge detectors, BGO suppression shields.

doi: 10.1016/0375-9474(93)90163-R
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1993WA21      Phys.Rev. C48, 2629 (1993)

M.P.Waring, D.B.Fossan, J.R.Hughes, D.R.LaFosse, Y.Liang, R.Ma, P.Vaska, E.S.Paul, S.A.Forbes, R.Wadsworth, R.M.Clark

γ Spectroscopy of 117I: Three structural features

NUCLEAR REACTIONS 94Mo(27Al, 2n2p), E=129 MeV; measured γγ-coin, Eγ, Iγ, DCO-ratios. 117I deduced levels, Iγ, γ multipolarity, decay features, band structure. Model calculations.

doi: 10.1103/PhysRevC.48.2629
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1992HU02      Phys.Rev. C45, 2177 (1992)

J.R.Hughes, D.B.Fossan, D.R.LaFosse, Y.Liang, P.Vaska, M.P.Waring, J.-Y.Zhang

Spectroscopy of 123Cs: Configuration dependent crossing frequencies

NUCLEAR REACTIONS 108Pd(19F, 4n), E=76 MeV; measured γγ-coin, Eγ, Iγ(θ). 123Cs deduced levels, band structure, J, π, δ. Potential energy surface, cranked shell model calculations.

doi: 10.1103/PhysRevC.45.2177
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1992LA16      Phys.Rev.Lett. 69, 1332 (1992)

D.R.LaFosse, D.B.Fossan, J.R.Hughes, Y.Liang, P.Vaska, M.P.Waring, J.-Y.Zhang

New Deformed States Near the Z = 50 Closed Shell: 11751Sb66

NUCLEAR REACTIONS 110Pd(11B, 4n), E=45 MeV/nucleon; measured γγ-coin, DCO ratios. 117Sb deduced levels, J, π, band structure, configuration.

doi: 10.1103/PhysRevLett.69.1332
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1992LI01      Phys.Rev. C45, 1041 (1992)

Y.Liang, D.B.Fossan, J.R.Hughes, D.R.LaFosse, T.Lauritsen, R.Ma, E.S.Paul, P.Vaska, M.P.Waring, N.Xu

High-Spin Spectroscopy of 119,121I: Prolate and Oblate Shape Coexistence

NUCLEAR REACTIONS 110Cd(12C, 2np), E=60 MeV; 114Cd(11B, 4n), E=51 MeV; measured γγ-coin. 119,121I deduced levels, J, π, γ-multipolarity, δ, shape features, band structure. Model comparison.

doi: 10.1103/PhysRevC.45.1041
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1992MU09      Phys.Rev. C45, 2683 (1992)

S.M.Mullins, I.Jenkins, Y.-J.He, A.J.Kirwan, P.J.Nolan, J.R.Hughes, R.Wadsworth, R.A.Wyss

Second Minimum Lifetime Measurements in 133Nd and 137Nd

NUCLEAR REACTIONS 105Pd(32S, 2n2p), E=152 MeV; 104Ru(36S, 3n), E=145 MeV; measured γγ-coin, DSA, centroid shifts. 133,137Nd deduced levels, T1/2, deformed band quadrupole moments. Total Routhian surface calculations.

doi: 10.1103/PhysRevC.45.2683
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1992PA04      J.Phys.(London) G18, 121 (1992)

E.S.Paul, S.A.Forbes, D.B.Fossan, J.Gizon, J.R.Hughes, S.M.Mullins, M.S.Metcalfe, P.J.Nolan, R.J.Poynter, P.H.Regan, G.Smith, R.Wadsworth

Quadrupole Moment of the i13/2 Intruder Band in 139Gd

NUCLEAR REACTIONS 92Mo(50Cr, n2p), E=220 MeV; measured γ-sum spectra, DSA, centroid shifts. 139Gd deduced levels, intruder band configuration, deformation, intrinsic quadrupole moment.

doi: 10.1088/0954-3899/18/1/010
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1992PA08      J.Phys.(London) G18, 837 (1992)

E.S.Paul, R.M.Clark, S.A.Forbes, D.B.Fossan, J.R.Hughes, D.R.LaFosse, Y.Liang, R.Ma, P.J.Nolan, P.H.Regan, P.Vaska, R.Wadsworth, M.P.Waring

Collective and Non-Collective High-Spin States in 115I

NUCLEAR REACTIONS 92Mo(27Al, 2n2p), E=125 MeV; measured Eγ, Iγ, γγ-coin. 115I deduced levels, J, π, configuration, band structure.

doi: 10.1088/0954-3899/18/5/012
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1992PA14      Phys.Rev. C45, R2531 (1992)

E.S.Paul, M.P.Waring, R.M.Clark, S.A.Forbes, D.B.Fossan, J.R.Hughes, D.R.LaFosse, Y.Liang, R.Ma, P.Vaska, R.Wadsworth

Delayed Neutron Alignment in 117I

NUCLEAR REACTIONS 94Mo(27Al, 2n2p), E=129 MeV; measured Eγ, Iγ, γγ-coin, DCO ratios. 117I levels, J, π, rotational alignment, crossing frequencies, band termination. Cranked shell model calculations.

doi: 10.1103/PhysRevC.45.R2531
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1992RE05      J.Phys.(London) G18, 847 (1992)

P.H.Regan, R.Wadsworth, S.M.Mullins, J.Nyberg, A.Atac, S.A.Forbes, D.B.Fossan, Y.-J.He, J.R.Hughes, I.Jenkins, R.Ma, M.S.Metcalfe, P.J.Nolan, E.S.Paul, R.J.Poynter, D.Santonicio, A.Virtanen, N.Xu

Measurement of the Intrinsic Quadrupole Moments in the νi13/2 Bands of 135,137Sm

NUCLEAR REACTIONS 92Mo(46Ti, n2p), E=210 MeV; 104Pd(37Cl, 3np), E=168 MeV; measured γγ-coin, DSA. 137Sm deduced levels, J, π, T1/2, deformation parameter β2, quadrupole moments, band structure. 135Sm deduced levels, J, π, T1/2, deformation parameter β2, quadrupole moments, band structure, superdeformation features.

doi: 10.1088/0954-3899/18/5/013
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1992ZH10      Phys.Rev. C46, R39 (1992)

J.-y.Zhang, J.R.Hughes

Search for Identical Bands at Normal Deformation in the A = 130 Mass Region

NUCLEAR STRUCTURE 117,119,121,123,125,127,129,131Xe, 121,123,125,127,129,131Ba, 127,129,131,133,135Ce, 133,135,137Nd, 133,135,137,139Sm, 119,121,123,125,127,129,131Cs, 123,127,129,131,133La, 131,133,135,137Pr, 135,137,139Pm, 139,141Eu; analyzed transition energies average deviation. Identical bands, normal deformation, cancellation picture.

doi: 10.1103/PhysRevC.46.R39
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1991HU09      Phys.Rev. C44, 2390 (1991)

J.R.Hughes, D.B.Fossan, D.R.LaFosse, Y.Liang, P.Vaska, M.P.Waring

Alignment Effects in Odd-Mass Cs Isotopes: Spectroscopy of 125Cs

NUCLEAR REACTIONS 110Pd(19F, 4n), E=74 MeV; measured γγ-coin, Iγ, Iγ(θ). 125Cs deduced levels, J, π, γ-multipolarity, B(λ) ratios, band structure. Comparison with cranked shell model, other isotopes included. Enriched target, Ge detectors, BGO multiplicity.

doi: 10.1103/PhysRevC.44.2390
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1991LI18      Phys.Rev. C44, R578 (1991)

Y.Liang, D.B.Fossan, J.R.Hughes, D.R.LaFosse, T.Lauritsen, R.Ma, E.S.Paul, P.Vaska, M.P.Waring, N.Xu, R.A.Wyss

Band Termination in 121I

NUCLEAR REACTIONS 114Cd(11B, 4n), E=51 MeV; measured γγ-coin. 121I deduced levels, J, π, band structure, configuration. Total Routhian surface calculation.

doi: 10.1103/PhysRevC.44.R578
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1991PA04      J.Phys.(London) G17, 605 (1991)

E.S.Paul, R.Ma, C.W.Beausang, S.A.Forbes, D.B.Fossan, J.Gizon, J.R.Hughes, Y.Liang, S.M.Mullins, P.J.Nolan, W.F.Piel, Jr., R.J.Poynter, P.H.Regan, R.Wadsworth, N.Xu

Electromagnetic Properties of N = 75 Isotones: Evidence for triaxiality at low spin

NUCLEAR REACTIONS 92Mo(50Cr, n2p), E=220 MeV; measured γγ-coin, γγ(θ). 120Sn(16O, 3n), E=69 MeV; measured γ(θ). 133Ce, 139Gd deduced levels, J, π, δ, B(λ) ratios, shape features. Other nuclei data included.

doi: 10.1088/0954-3899/17/5/009
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1991RE03      Nucl.Phys. A533, 476 (1991)

P.H.Regan, R.Wadsworth, J.R.Hughes, G.J.Gyapong, W.Gelletly, M.J.Godfrey, I.Jenkins, Y.-J.He, S.M.Mullins, P.J.Nolan, J.Simpson, B.J.Varley, D.L.Watson

Spectroscopy of the Light Rare-Earth Nuclei 133Pm and 133Sm: Configuration-dependent pairing and evidence for strong residual proton-neutron interactions in neighbouring odd-N and odd-Z nuclei

NUCLEAR REACTIONS 96Ru(40Ca, 2np), (40Ca, 3p), E=180 MeV; measured Iγ, Eγ. 133Sm, 133Pm levels deduced J, π, configurations.

doi: 10.1016/0375-9474(91)90529-F
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1991XU01      Phys.Rev. C43, 2189 (1991)

N.Xu, C.W.Beausang, J.R.Hughes, Y.Liang, R.Ma, E.S.Paul, W.F.Piel, Jr., S.Shi, D.B.Fossan

High Spin States in 141Eu

NUCLEAR REACTIONS 110Cd(35Cl, 2n2p), (35Cl, 2np), E ≈ 150-170 MeV; measured σ(Eγ, E), γγ-coin, γ(θ), Eγ, Iγ. 141Eu deduced levels, J, π, band structure, γ-multipolarity.

doi: 10.1103/PhysRevC.43.2189
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1990FO06      Nucl.Phys. A520, 241c (1990)

D.B.Fossan, J.R.Hughes, Y.Liang, R.Ma, E.S.Paul, N.Xu

Collectively-Rotating Oblate Bands in the A ≈ 130 Mass Region

NUCLEAR STRUCTURE A ≈ 130; analyzed data; deduced shape change, pair rotational alignment role.

doi: 10.1016/0375-9474(90)91150-P
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1990HU04      Nucl.Phys. A512, 275 (1990)

J.R.Hughes, R.Tolle, J.de Boer, P.A.Butler, C.Gunther, V.Grafen, N.Gollwitzer, V.E.Holliday, G.D.Jones, C.Lauterbach, M.Marten-Tolle, S.M.Mullins, R.J.Poynter, R.S.Simon, N.Singh, R.J.Tanner, R.Wadsworth, D.L.Watson, C.A.White

Octupole Correlations in 225Th

NUCLEAR REACTIONS 226Ra(α, 5n), E=50 MeV; measured Eγ, Iγ, Iγ(θ), I(ce), γγ-, e-n-, e-e--, e-γ-coin, γ-branching ratios. 225Th deduced levels, J, π, rotational bands, dipole moment. Radioactive target.

doi: 10.1016/0375-9474(90)93272-8
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1990RE12      Phys.Rev. C42, R1805 (1990)

P.H.Regan, R.Wyss, R.Wadsworth, D.B.Fossan, Y.-J.He, J.R.Hughes, I.Jenkins, R.Ma, M.S.Metcalfe, S.M.Mullins, P.J.Nolan, E.S.Paul, R.J.Poynter, N.Xu

Lifetime Measurements in 135Sm: Large deformation in the N = 6 intruder band and evidence for quenched proton pairing

NUCLEAR REACTIONS 92Mo(46Ti, n2p), E=210 MeV; measured γ-spectra, DSA. 135Sm levels deduced T1/2, deformed band quadrupole moment.

doi: 10.1103/PhysRevC.42.R1805
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1989AC01      Z.Phys. A332, 375 (1989)

B.Ackermann, T.Bihn, P.A.Butler, V.Grafen, C.Gunther, J.R.Hughes, G.D.Jones, Ch.Lauterbach, H.J.Maier, M.Marten-Tolle, R.Tolle, R.Wadsworth, D.L.Watson, C.A.White

Level Structure of 217Rn and 221Ra Investigated in the Alpha-Decay 225Th → 221Ra → 217Rn

RADIOACTIVITY 225Th(α) [from 226Ra(α, 5n), E=52 MeV]; 221Ra(α) [from Th decay]; measured αγ-coin, I(ce). 221Ra, 217Rn deduced levels, ICC, Iγ, γ-multipolarity.


1989PO03      J.Phys.(London) G15, 449 (1989)

R.J.Poynter, P.A.Butler, G.D.Jones, R.J.Tanner, C.A.White, J.R.Hughes, S.M.Mullins, R.Wadsworth, D.L.Watson, J.Simpson

Studies of Octupole Structures in the Isotopes 220,222Rn Populated via α Decay

RADIOACTIVITY 226Ra, 228Th(α), 224Ra(α) [from 228Th(α-decay)]; 218,216Po [from 222,220Rn α-decay]; measured αγ-coin. 218,216Po, 220,222Rn deduced levels, J, π.

doi: 10.1088/0954-3899/15/4/008
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1989PO19      Phys.Lett. 232B, 447 (1989)

R.J.Poynter, P.A.Butler, N.Clarkson, D.Cline, K.A.Connell, R.A.Cunningham, L.Goettig, T.H.Hoare, J.R.Hughes, N.S.Jarvis, G.D.Jones, S.Juutinen, S.M.Mullins, C.N.Pass, J.Simpson, R.Wadsworth, D.L.Watson, C.A.White

Observation of Unexpectedly Small E1 Moments in 224Ra

NUCLEAR REACTIONS 226Ra(58Ni, 60Ni), E=315 MeV; measured γγ(particle)-coin, Eγ, Iγ. 224Ra deduced levels, J, π, B(λ) ratios, intrinsic electric dipole moment. Other data input.

RADIOACTIVITY 228Th(α); measured γγ-coin, electron spectra. 224Ra deduced levels, J, π, B(λ) ratios, intrinsic electric dipole moment. Other data input.

doi: 10.1016/0370-2693(89)90439-5
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1989WA08      J.Phys.(London) G15, L47 (1989)

R.Wadsworth, S.M.Mullins, J.R.Hughes, P.J.Nolan, A.Kirwan, P.J.Bishop, I.Jenkins, M.J.Godfrey, D.J.Thornley

Anomalous Crossing Frequencies in the Sidebands of 132,134Nd

NUCLEAR REACTIONS 104Pd(32S, 2n2p), E=152 MeV; 104Ru(34S, 4n), E=150 MeV; measured γγ-, (recoil)γ-coin, I(γ). 134,132Nd deduced levels, J, π. Ge detectors, BGO escape suppression shields, BGO crystal ball, enriched target. Cranked shell model calculations.

doi: 10.1088/0954-3899/15/4/001
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1988MU22      J.Phys.(London) G14, 1373 (1988)

S.M.Mullins, M.D.Cohler, A.Ghazarian, J.R.Hughes, R.Wadsworth, D.L.Watson, P.J.Bishop, A.J.Kirwan, P.J.Nolan, R.J.Poynter, D.J.G.Love, J.Heese

Collective Bands and Lifetime Measurements in 137Pm

NUCLEAR REACTIONS 122Te(19F, 4n), E=83 MeV; 108Pd(32S, 2np), E=152 MeV; measured Eγ, Iγ, γγ-coin, recoil distance. 137Pm deduced levels J, π, T1/2, deformation parameter, B(E2). Ge detectors, BGO escape suppression shields, BGO multiplicity filter, enriched targets. Cranked shell model.

NUCLEAR STRUCTURE 137Pm; calculated levels, deformation parameter. Cranked shell model.

doi: 10.1088/0305-4616/14/11/009
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