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NSR database version of May 20, 2024.

Search: Author = D.B.Campbell

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2023SI08      Phys.Rev. C 107, 054305 (2023)

J.Simpson, M.A.Riley, A.Pipidis, E.S.Paul, X.Wang, P.J.Nolan, J.F.Sharpey-Schafer, A.Aguilar, D.E.Appelbe, A.D.Ayangeakaa, A.J.Boston, H.C.Boston, D.B.Campbell, M.P.Carpenter, C.J.Chiara, P.T.W.Choy, R.M.Clark, M.Cromaz, A.O.Evans, P.Fallon, U.Garg, A.Gorgen, D.J.Hartley, R.V.F.Janssens, D.T.Joss, D.S.Judson, F.G.Kondev, T.Lauritsen, I.Y.Lee, A.O.Macchiavelli, J.T.Matta, J.Ollier, M.Petri, J.P.Revill, L.L.Riedinger, S.V.Rigby, C.Teal, P.J.Twin, C.Unsworth, D.Ward, S.Zhu, I.Ragnarsson

Evolution of structure and shapes in 158Er to ultrahigh spin

NUCLEAR REACTIONS 114Cd(48Ca, 4n)158Er, E=215 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ). 158Er; deduced levels, J, π, high-spin states, angular intensity ratios, δ, B(M1/E2) ratios, nuclear shapes, alignments, rotational bands, configurations, band terminating states and feeding, transition quadrupole moments for triaxial strongly deformed bands, moment of inertia. Comparison with cranked Nilsson-Strutinski calculations. Systematics of triaxial strongly deformed bands in 158Er, 160Er, 152Dy, 163Lu. Gammasphere array of escape-suppressed HPGe detectors at 88-inch cyclotron-LBNL and ATLAS-ANL facilities.

doi: 10.1103/PhysRevC.107.054305
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2009PA17      Phys.Rev. C 79, 044324 (2009)

E.S.Paul, S.V.Rigby, M.A.Riley, J.Simpson, D.E.Appelbe, D.B.Campbell, P.T.W.Choy, R.M.Clark, M.Cromaz, A.O.Evans, P.Fallon, A.Gorgen, D.T.Joss, I.Y.Lee, A.O.Macchiavelli, P.J.Nolan, A.Pipidis, D.Ward, I.Ragnarsson

Loss of collectivity in the transitional 156Er nucleus at high spin

NUCLEAR REACTIONS 114Cd(48Ca, 6n), E=215 MeV; measured Eγ, Iγ, γγ-coin, angular distributions. 156Er; deduced levels, J, π, angular distribution coefficients, bands, multipolarities, B(M1), B(M1)/B(E2), configurations, alignments as a function of rotational frequency. Nilsson-Strutinsky calculations. Potential energy surface calculations. 152Gd, 154Dy, 156Er, 158Yb, 160Hf; level and configuration systematics.

doi: 10.1103/PhysRevC.79.044324
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2009RI05      Acta Phys.Pol. B40, 513 (2009)

M.A.Riley, A.Aguilar, A.O.Evans, D.J.Hartley, K.Lagergren, J.Ollier, E.S.Paul, A.Pipidis, J.Simpson, C.Teal, P.J.Twin, X.Wang, D.E.Appelbe, D.B.Campbell, M.P.Carpenter, R.M.Clark, M.Cromaz, I.G.Darby, P.Fallon, U.Garg, R.V.F.Janssens, D.T.Joss, F.G.Kondev, T.Lauritsen, I.Y.Lee, C.J.Lister, A.O.Macchiavelli, P.J.Nolan, M.Petri, S.V.Rigby, J.Thompson, C.Unsworth, D.Ward, S.Zhu, I.Ragnarsson

Strongly Deformed Nuclear Shapes at Ultra-High Spin and Shape Coexistence in ∼ 90 Nuclei


2008AG04      Phys.Rev. C 77, 021302 (2008)

A.Aguilar, D.B.Campbell, K.Chandler, A.Pipidis, M.A.Riley, C.Teal, J.Simpson, D.J.Hartley, F.G.Kondev, R.M.Clark, M.Cromaz, P.Fallon, I.Y.Lee, A.O.Macchiavelli, I.Ragnarsson

New shape minimum in 160Yb: Evidence for a triaxial, strongly deformed band

NUCLEAR REACTIONS 120Sn(44Ca, 4n), E=210 MeV; measured Eγ, Iγ, γγ-coin; calculated potential energy surfaces; 160Yb; deduced excitation energies, configurations, high-spin rotational bands, triaxial strongly-deformed bands. 157,158Er, 161Lu; systematics, comparison with theory.

doi: 10.1103/PhysRevC.77.021302
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2008KA32      Phys.Rev. C 78, 037303 (2008)

R.A.Kaye, C.S.Myers, J.Doring, S.L.Tabor, S.M.Gerbick, T.D.Baldwin, D.B.Campbell, C.Chandler, M.W.Cooper, M.A.Hallstrom, C.R.Hoffman, J.Pavan, L.A.Riley, M.Wiedeking

Linear polarization measurements and negative-parity states in 80Sr

NUCLEAR REACTIONS 54Fe(28Si, 2p), E=90 MeV; 58Ni(28Si, 2pα), E=110 MeV; measured Eγ, Iγ, γγ-coin, polarization, multipolarities, mixing ratios, angular correlation, polarization. 80Sr; deduced levels, J, π, bands.

doi: 10.1103/PhysRevC.78.037303
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2007CA25      Phys.Rev. C 75, 064314 (2007)

D.B.Campbell, R.W.Laird, M.A.Riley, J.Simpson, F.G.Kondev, D.J.Hartley, R.V.F.Janssens, T.B.Brown, M.P.Carpenter, P.Fallon, S.M.Fischer, T.Lauritsen, D.Nisius, I.Ragnarsson

Rotational structures and their evolution with spin in 152Gd

NUCLEAR REACTIONS 124Sn(36S, 4nα)152Gd, e=175 MeV; measured Eγ, Iγ, γγ-coinc using the Gammasphere. 152Gd deduced levels, J, π. Compared results to model calculations.

doi: 10.1103/PhysRevC.75.064314
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2007KA13      Phys.Rev. C 75, 034311 (2007)

R.A.Kaye, Y.K.Ryu, S.R.Arora, S.L.Tabor, J.Doring, Y.Sun, T.D.Baldwin, D.B.Campbell, C.Chandler, M.W.Cooper, S.M.Gerbick, O.Grubor-Urosevic, C.R.Hoffman, J.Pavan, L.A.Riley, M.Wiedeking

Transition strengths and degree of deformation in 79Sr

NUCLEAR REACTIONS 54Fe(28Si, n2p), E=90 MeV; measured Eγ, Iγ, γγ-coin, DSA. 79Sr deduced high-spin levels, J, π, configurations, T1/2, B(E2), B(M1), transition quadrupole moments, β2. Comparison with cranked mean-field and projected shell-model predictions.

doi: 10.1103/PhysRevC.75.034311
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2007PA03      Phys.Rev.Lett. 98, 012501 (2007)

E.S.Paul, P.J.Twin, A.O.Evans, A.Pipidis, M.A.Riley, J.Simpson, D.E.Appelbe, D.B.Campbell, P.T.W.Choy, R.M.Clark, M.Cromaz, P.Fallon, A.Gorgen, D.T.Joss, I.Y.Lee, A.O.Macchiavelli, P.J.Nolan, D.Ward, I.Ragnarsson

Return of Collective Rotation in 157Er and 158Er at Ultrahigh Spin

NUCLEAR REACTIONS 114Cd(48Ca, 4n), (48Ca, 5n), E=215 MeV; measured Eγ, Iγ, γγ-coin. 157,158Er deduced high-spin levels, J, π, configurations, collective rotation above band-terminating states. Gammasphere array, cranked Nilsson-Strutinsky calculations.

doi: 10.1103/PhysRevLett.98.012501
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2006EV02      Phys.Rev. C 73, 064303 (2006)

A.O.Evans, E.S.Paul, J.Simpson, M.A.Riley, D.E.Appelbe, D.B.Campbell, P.T.W.Choy, R.M.Clark, M.Cromaz, P.Fallon, A.Gorgen, D.T.Joss, I.Y.Lee, A.O.Macchiavelli, P.J.Nolan, A.Pipidis, D.Ward, I.Ragnarsson

High-spin structure in 157Er up to and above band termination

NUCLEAR REACTIONS 114Cd(48Ca, 5n), E=215 MeV; measured Eγ, Iγ, γγ-coin. 157Er deduced high-spin levels, J, π, configurations, B(M1)/B(E2), band termination. Gammasphere array.

doi: 10.1103/PhysRevC.73.064303
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2006LE17      Phys.Rev. C 73, 044321 (2006)

S.Lee, S.L.Tabor, T.Baldwin, D.B.Campbell, I.Calderin, C.Chandler, M.W.Cooper, C.R.Hoffman, K.W.Kemper, J.Pavan, A.Pipidis, M.A.Riley, M.Wiedeking

Structure of 26Na from the 14C(14C, d) reaction

NUCLEAR REACTIONS 14C(14C, d), E=22 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 26Na deduced levels, J, π, configurations. Shell model analysis.

doi: 10.1103/PhysRevC.73.044321
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2006RI13      Phys.Scr. T125, 123 (2006)

M.A.Riley, M.K.Djongolov, A.O.Evans, D.J.Hartley, R.V.F.Janssens, E.S.Paul, A.Pipidis, J.Simpson, A.A.Aguilar, D.E.Appelbe, C.R.Bingham, D.B.Campbell, M.P.Carpenter, P.Chowdhury, P.T.W.Choy, R.M.Clark, M.Cromaz, D.M.Cullen, M.Danchev, G.D.Dracoulis, P.Fallon, A.Gorgen, G.B.Hagemann, D.T.Joss, J.Goon, R.A.Kaye, T.L.Khoo, F.G.Kondev, R.W.Laird, K.Lagergren, T.Lauritsen, A.O.Macchiavelli, B.McClain, E.F.Moore, G.Mukherjee, E.Ngijoi-Yogo, P.J.Nolan, H.I.Park, L.L.Riedinger, G.Sletten, S.K.Tandel, P.M.Walker, D.Ward, I.Ragnarsson, F.Saric, J.Zhang

Observation of states beyond band termination in 156, 157, 158Er and strongly deformed structures in 173, 174, 175Hf

NUCLEAR REACTIONS 114Cd(48Ca, 4n), (48Ca, 5n), (48Ca, 6n), E=215 MeV; measured Eγ, Iγ, γγ-coin. 156,157,158Er deduced high-spin levels, states above band termination. Gammasphere array.

NUCLEAR STRUCTURE 173,174,175Hf; analyzed data; deduced superdeformed bands features.

doi: 10.1088/0031-8949/2006/T125/028
Citations: PlumX Metrics


2005HA05      Phys.Lett. B 608, 31 (2005)

D.J.Hartley, M.K.Djongolov, L.L.Riedinger, G.B.Hagemann, R.V.F.Janssens, F.G.Kondev, E.F.Moore, M.A.Riley, A.Aguilar, C.R.Bingham, D.B.Campbell, M.P.Carpenter, P.Chowdhury, M.Cromaz, D.M.Cullen, M.Danchev, G.D.Dracoulis, P.Fallon, J.Goon, R.A.Kaye, T.L.Khoo, R.W.Laird, T.Lauritsen, A.O.Macchiavelli, B.McClain, G.Mukherjee, E.Ngijoi-Yogo, H.I.Park, G.Sletten, S.K.Tandel, P.M.Walker, J.-Y.Zhang

Wobbling excitations in strongly deformed Hf nuclei?

NUCLEAR REACTIONS 130Te(48Ca, 4n), (48Ca, 5n), E=200, 205 MeV; measured Eγ, Iγ, γγ-coin, DSA. 174Hf deduced superdeformed bands transitions, T1/2, quadrupole moments. 173Hf deduced superdeformed band transitions. Gammasphere array, comparisons with model predictions.

doi: 10.1016/j.physletb.2005.01.007
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2005LA32      Phys.Rev. C 72, 057303 (2005)

K.Lagergren, M.A.Riley, J.Simpson, D.E.Appelbe, P.Bednarczyk, D.B.Campbell, C.Chandler, P.T.W.Choy, D.Curien, D.T.Joss, E.S.Paul

Observation of the second proton alignment in 160Tm

NUCLEAR REACTIONS 130Te(35Cl, 5n), E=170 MeV; measured Eγ, Iγ, γγ-coin. 160Tm deduced high-spin levels, J, π, configurations. Euroball array.

doi: 10.1103/PhysRevC.72.057303
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2005PI21      Phys.Rev. C 72, 064307 (2005)

A.Pipidis, M.A.Riley, J.Simpson, R.V.F.Janssens, F.G.Kondev, D.E.Appelbe, A.P.Bagshaw, M.A.Bentley, T.B.Brown, M.P.Carpenter, D.M.Cullen, D.B.Campbell, P.J.Dagnall, P.Fallon, S.M.Fischer, G.B.Hagemann, D.J.Hartley, K.Lagergren, R.W.Laird, T.Lauritsen, J.C.Lisle, D.Nisius, S.L.Shepherd, A.G.Smith, S.Tormanen, I.Ragnarsson

Structural behavior of 157, 158, 159Dy in the I=30-50 (h-bar) spin regime

NUCLEAR REACTIONS 124Sn(36S, 3n), E=165 MeV; 130Te(36S, 3nα), (36S, 4nα), (34S, 3nα), E=170 MeV; measured Eγ, Iγ, γγ-coin. 157,158,159Dy deduced high-spin levels, J, π, configurations. Gammasphere, Euroball arrays.

doi: 10.1103/PhysRevC.72.064307
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2005RI16      J.Phys.(London) G31, S1735 (2005)

M.A.Riley, M.K.Djongolov, A.O.Evans, D.J.Hartley, R.V.F.Janssens, E.S.Paul, J.Simpson, A.A.Aguilar, D.E.Appelbe, C.R.Bingham, D.B.Campbell, M.P.Carpenter, P.Chowdhury, P.T.W.Choy, R.M.Clark, M.Cromaz, D.M.Cullen, M.Danchev, G.D.Dracoulis, P.Fallon, A.Gorgen, G.B.Hagemann, D.T.Joss, J.Goon, R.A.Kaye, T.L.Khoo, F.G.Kondev, R.W.Laird, K.Lagergren, T.Lauritsen, A.O.Macchiavelli, B.McClain, E.F.Moore, G.Mukherjee, E.Ngijoi-Yogo, P.J.Nolan, H.I.Park, A.Pipidis, L.L.Riedinger, G.Sletten, S.K.Tandel, P.M.Walker, D.Ward, I.Ragnarsson, F.Saric, J.Zhang

Beyond band termination in 157Er and the search for wobbling excitations in strongly deformed 174Hf

NUCLEAR REACTIONS 114Cd(48Ca, 5n), E=215 MeV; measured Eγ, Iγ, γγ-coin. 157Er deduced high-spin levels, J, π, band termination features. Gammasphere array.

NUCLEAR STRUCTURE 173,174Hf; analyzed superdeformed band transitions fractional Doppler shifts, transition quadrupole moments.

doi: 10.1088/0954-3899/31/10/064
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2005WI05      Phys.Rev.Lett. 94, 132501 (2005)

M.Wiedeking, S.L.Tabor, J.Pavan, A.Volya, A.L.Aguilar, I.J.Calderin, D.B.Campbell, W.T.Cluff, E.Diffenderfer, J.Fridmann, C.R.Hoffman, K.W.Kemper, S.Lee, M.A.Riley, B.T.Roeder, C.Teal, V.Tripathi, I.Wiedenhover

p-sd Shell Gap Reduction in Neutron-Rich Systems and Cross-Shell Excitations in 20O

NUCLEAR REACTIONS 10Be(14C, α), E=21.4 MeV; measured Eγ, Eα, αγ-, γγ-coin. 20O deduced levels, J, π, core excitation. Comparison with shell model predictions.

doi: 10.1103/PhysRevLett.94.132501
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2004EV01      Phys.Rev.Lett. 92, 252502 (2004)

A.O.Evans, E.S.Paul, J.Simpson, M.A.Riley, D.E.Appelbe, D.B.Campbell, P.T.W.Choy, R.M.Clark, M.Cromaz, P.Fallon, A.Gorgen, D.T.Joss, I.Y.Lee, A.O.Macchiavelli, P.J.Nolan, A.Pipidis, D.Ward, I.Ragnarsson, F.Saric

High-Spin Structure beyond Band Termination in 157Er

NUCLEAR REACTIONS 114Cd(48Ca, 5n), E=215 MeV; measured Eγ, Iγ, γγ-coin. 157Er deduced high-spin levels, J, π, configurations, feeding of band-terminating states. Gammasphere array, comparison with cranked mean-field calculations.

doi: 10.1103/PhysRevLett.92.252502
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2004KA32      Phys.Rev. C 69, 064314 (2004)

R.A.Kaye, O.Grubor-Urosevic, S.L.Tabor, J.Doring, Y.Sun, R.Palit, J.A.Sheikh, T.Baldwin, D.B.Campbell, C.Chandler, M.W.Cooper, S.M.Gerbick, C.R.Hoffman, J.Pavan, L.A.Riley, M.Wiedeking

Collective excitations and shape changes in 80Y

NUCLEAR REACTIONS 54Fe(28Si, np), E=90 MeV; measured Eγ, Iγ, γγ-coin, DSA. 80Y deduced high-spin levels, J, π, T1/2, transition quadrupole moments, B(M1), B(E2). Cranked mean-field calculations.

doi: 10.1103/PhysRevC.69.064314
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2003HO16      Phys.Rev. C 68, 034304 (2003)

C.R.Hoffman, S.L.Tabor, M.W.Cooper, T.Baldwin, D.B.Campbell, C.Chandler, K.W.Kemper, J.Pavan, A.Pipidis, M.A.Riley, M.Wiedeking, B.A.Brown

Structure of T=2 24Ne from 14C on 14C

NUCLEAR REACTIONS 14C(14C, α), E=22 MeV; measured Eγ, Iγ, Eα, γγ-, αγ-coin. 24Ne deduced levels, J, π, configurations. Comparison with shell model predictions, level systematics in neighboring isotopes.

doi: 10.1103/PhysRevC.68.034304
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2002CO11      Phys.Rev. C65, 051302 (2002)

M.W.Cooper, S.L.Tabor, T.Baldwin, D.B.Campbell, C.Chandler, C.R.Hoffman, K.W.Kemper, J.Pavan, A.Pipidis, M.A.Riley, M.Wiedeking

T = 5/2 27Na from 14C + 14C, and the N = 16 Shell Gap

NUCLEAR REACTIONS 14C(14C, p), E=22 MeV; measured Eγ, Iγ, Ep, γγ-, (charged particle)γ-coin. 27Na deduced levels, J, π, configurations. Shell model analysis.

doi: 10.1103/PhysRevC.65.051302
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2002TA10      Yad.Fiz. 65, 745 (2002); Phys.Atomic Nuclei 65, 713 (2002)

S.L.Tabor, M.W.Cooper, D.B.Campbell, C.Chandler, K.W.Kemper, A.Pipidis, M.A.Riley, M.Wiedeking, I.Ragnarsson

Structure of Neutron-Rich s-d Shell Nuclei

NUCLEAR REACTIONS 14C(14C, 2n), (14C, p), (14C, α), E=22 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 26Mg, 27Na, 24Ne deduced levels, J, π. Comparison with shell model results.

doi: 10.1134/1.1471279
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2001CO05      Nucl.Phys. A682, 131c (2001)

M.W.Cooper, D.B.Campbell, C.Chandler, K.W.Kemper, A.Pipidis, I.Ragnarsson, M.A.Riley, M.Wiedeking, S.L.Tabor

New γ Transitions in 27Na from 14C on 14C

NUCLEAR REACTIONS 14C(14C, p), E=22 MeV; measured Eγ, Iγ, γγ-, (particle)γ-coin. 27Na deduced levels, J, π. Comparison with shell model.

doi: 10.1016/S0375-9474(00)00631-X
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