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NSR database version of April 11, 2024.

Search: Author = J.C.Waddington

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2012GE04      Phys.Rev. C 86, 034304 (2012)

J.Gellanki, D.Rudolph, I.Ragnarsson, L.-L.Andersson, C.Andreoiu, M.P.Carpenter, J.Ekman, C.Fahlander, E.K.Johansson, A.Kardan, W.Reviol, D.G.Sarantites, D.Seweryniak, C.E.Svensson, J.C.Waddington

Extensive γ-ray spectroscopy of band structures in ₃₀⁶²Zn₃₂

NUCLEAR REACTIONS ²⁸Si(³⁶Ar, 2p), E AP 140 MeV; ⁴⁰Ca(²⁸Si, 2pα), E=122 MeV; measured Eγ, Iγ, γγ-, (particle)γ-coin, γγ(θ)(DCO). ⁶²Zn; deduced levels, J, π, normal deformation, well-deformed, terminating and superdeformed bands, multipolarity, mixing ratio, alignments, configurations. Comparison with cranked Nilsson-Strutinsky calculations.

doi: 10.1103/PhysRevC.86.034304
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2009GE14      Phys.Rev. C 80, 051304 (2009)

J.Gellanki, I.Ragnarsson, D.Rudolph, C.E.Svensson, L.-L.Andersson, C.Andreoiu, C.Baktash, M.P.Carpenter, R.J.Charity, C.J.Chiara, J.Eberth, J.Ekman, C.Fahlander, D.S.Haslip, E.K.Johansson, D.R.LaFosse, S.D.Paul, O.L.Pechenaya, W.Reviol, R.du Rietz, D.G.Sarantites, D.Seweryniak, L.G.Sobotka, H.G.Thomas, D.A.Torres, J.C.Waddington, J.N.Wilson, C.H.Yu, S.Zhu

Characterization of superdeformed bands in ⁶²Zn

NUCLEAR REACTIONS ²⁸Si(³⁶Ar, 2p), E=140 MeV; ⁴⁰Ca(²⁸Si, 2pα), E=122 MeV; measured Eγ, Iγ, γγ-coin, DCO using Gammasphere array. ⁶²Zn; deduced levels, J, π, moment of inertia, configurations. Comparison with cranked Nilsson-Strutinsky calculations.

doi: 10.1103/PhysRevC.80.051304
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2009SC23      Phys.Rev. C 80, 044325 (2009); Erratum Phys.Rev. C 82, 069902 (2010)

M.A.Schumaker, D.Cline, G.Hackman, C.J.Pearson, C.E.Svensson, C.Y.Wu, A.Andreyev, R.A.E.Austin, G.C.Ball, D.Bandyopadhyay, J.A.Becker, A.J.Boston, H.C.Boston, L.Buchmann, R.Churchman, F.Cifarelli, R.J.Cooper, D.S.Cross, D.Dashdorj, G.A.Demand, M.R.Dimmock, T.E.Drake, P.Finlay, A.T.Gallant, P.E.Garrett, K.L.Green, A.N.Grint, G.F.Grinyer, L.J.Harkness, A.B.Hayes, R.Kanungo, A.F.Lisetskiy, K.G.Leach, G.Lee, R.Maharaj, J.-P.Martin, F.Moisan, A.C.Morton, S.Mythili, L.Nelson, O.Newman, P.J.Nolan, J.N.Orce, E.Padilla-Rodal, A.A.Phillips, M.Porter-Peden, J.J.Ressler, R.Roy, C.Ruiz, F.Sarazin, D.P.Scraggs, J.C.Waddington, J.M.Wan, A.Whitbeck, S.J.Williams, J.Wong

Coulomb excitation of the proton-dripline nucleus ²⁰Na

NUCLEAR REACTIONS Ti(²⁰Na, ²⁰Na'), E=1.7 MeV/nucleon; measured particle spectra, Eα, Eγ, Iγ, γγ-, (particle)γ-coin, angular correlations and γ-ray yield. ²⁰Na, ⁴⁸Ti; deduced levels, J, π, mixing ratios, transition matrix elements, B(M1), B(E2), and static electric quadrupole moments. Tigress and Bambino arrays at TRIUMF-ISAC facility. GOSIA analysis of Coulomb excitation data. Comparisons with shell-model calculations using the USD, USDB and p-sd effective interactions employing OXBASH shell-model code, and with results for ²⁰F mirror nucleus.

NUCLEAR MOMENTS ²⁰Na, ⁴⁸Ti; deduced static electric quadrupole moments from Coulomb excitation experiment.

doi: 10.1103/PhysRevC.80.044325
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2009SC28      Eur.Phys.J. A 42, 477 (2009)

M.A.Schumaker, D.Cline, G.Hackman, C.Pearson, C.E.Svensson, C.Y.Wu, A.Andreyev, R.A.E.Austin, G.C.Ball, D.Bandyopadhyay, J.A.Becker, A.J.Boston, H.C.Boston, L.Buchmann, R.Churchman, F.Cifarelli, R.J.Cooper, D.S.Cross, D.Dashdorj, G.A.Demand, M.R.Dimmock, T.E.Drake, P.Finlay, A.T.Gallant, P.E.Garrett, K.L.Green, A.N.Grint, G.F.Grinyer, L.J.Harkness, A.B.Hayes, R.Kanungo, A.F.Lisetskiy, K.G.Leach, G.Lee, R.Maharaj, J-P.Martin, F.Moisan, A.C.Morton, S.Mythili, L.Nelson, O.Newman, P.J.Nolan, J.N.Orce, E.Padilla-Rodal, A.A.Phillips, M.Porter-Peden, J.J.Ressler, R.Roy, C.Ruiz, F.Sarazin, D.P.Scraggs, J.C.Waddington, J.M.Wan, A.Whitbeck, S.J.Williams, J.Wong

Coulomb excitation of radioactive ^{20, 21}Na

NUCLEAR REACTIONS Ti(²⁰Na, ²⁰Na'), (²¹Na, ²¹Na'), E=1.7 MeV/nucleon; ^20,21Na, ⁴⁸Ti; measured Eγ, Iγ, γγ-, (particle)γ-coin, angular correlations and γ-ray yield; deduced B(E2), levels, J, π, mixing ratios, transition matrix elements. Tigress and Bambino arrays at TRIUMF-ISAC facility. GOSIA analysis of Coulomb excitation data. Comparisons with shell-model calculations using the USD, USDB and p-sd effective interactions employing OXBASH shell-model code.

doi: 10.1140/epja/i2009-10816-4
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2008SC18      Phys.Rev. C 78, 044321 (2008)

M.A.Schumaker, D.Cline, G.Hackman, A.C.Morton, C.J.Pearson, C.E.Svensson, C.Y.Wu, A.Andreyev, R.A.E.Austin, G.C.Ball, D.Bandyopadhyay, J.A.Becker, A.J.Boston, H.C.Boston, L.Buchmann, R.Churchman, F.Cifarelli, R.J.Cooper, D.S.Cross, D.Dashdorj, G.A.Demand, M.R.Dimmock, T.E.Drake, P.Finlay, A.T.Gallant, P.E.Garrett, K.L.Green, A.N.Grint, G.F.Grinyer, L.J.Harkness, A.B.Hayes, R.Kanungo, K.G.Leach, G.Lee, R.Maharaj, J.-P.Martin, F.Moisan, S.Mythili, L.Nelson, O.Newman, P.J.Nolan, J.N.Orce, E.Padilla-Rodal, A.A.Phillips, M.Porter-Peden, J.J.Ressler, R.Roy, C.Ruiz, F.Sarazin, D.P.Scraggs, J.C.Waddington, J.M.Wan, A.Whitbeck, S.J.Williams, J.Wong

Coulomb excitation of radioactive ²¹Na and its stable mirror ²¹Ne

NUCLEAR REACTIONS Ti(²¹Na, ²¹Na), (²¹Ne, ²¹Ne'γ), E=1.7 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin. ²¹Ne, ²¹Na, ^42,46,48Ti; deduced levels, J, π, multipolarities, mixing ratios, B(E2). Coulomb excitation.

doi: 10.1103/PhysRevC.78.044321
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2008VA03      Phys.Rev. C 77, 024312 (2008)

J.J.Valiente-Dobon, C.E.Svensson, A.V.Afanasjev, I.Ragnarsson, C.Andreoiu, D.E.Appelbe, R.A.E.Austin, G.C.Ball, J.A.Cameron, M.P.Carpenter, R.M.Clark, M.Cromaz, D.Dashdorj, P.Fallon, S.J.Freeman, P.E.Garrett, A.Gorgen, G.F.Grinyer, D.F.Hodgson, B.Hyland, D.Jenkins, F.Johnston-Theasby, P.Joshi, N.S.Kelsall, A.O.Macchiavelli, D.Mengoni, F.Moore, G.Mukherjee, A.A.Phillips, W.Reviol, D.Sarantites, M.A.Schumaker, D.Seweryniak, M.B.Smith, J.C.Waddington, R.Wadsworth, D.Ward

Low-spin lifetime measurements in ⁷⁴Kr

NUCLEAR REACTIONS ⁴⁰Ca(⁴⁰Ca, 2pα), E=165 MeV; measured Eγ, Iγ, half-lives, transition quadrupole moments. ⁷⁴Kr; deduced excitation energies, rotational bands.

doi: 10.1103/PhysRevC.77.024312
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2007BA49      Nucl.Phys. A787, 118c (2007)

G.C.Ball, A.Andreyev, R.A.E.Austin, D.Bandyopadhyay, J.A.Becker, A.J.Boston, H.C.Boston, A.Chen, R.Churchman, F.Cifarelli, D.Cline, R.J.Cooper, D.S.Cross, D.Dashdorj, G.Demand, M.R.Dimmock, T.E.Drake, P.Finlay, F.Gagon-Moisan, A.T.Gallant, P.E.Garrett, K.L.Green, A.N.Grint, G.Hackman, L.J.Harkness, A.B.Hayes, R.Kanungo, K.G.Leach, G.Lee, R.Maharaj, J.-P.Martin, A.C.Morton, S.Mythili, L.Nelson, O.Newman, P.J.Nolan, E.Padilla-Rodal, C.J.Pearson, A.A.Phillips, M.Porter-Peden, J.J.Ressler, R.Roy, C.Ruiz, H.Savajols, F.Sarazin, M.A.Schumaker, D.P.Scraggs, C.E.Svensson, J.C.Waddington, J.M.Wan, A.Whitbeck, S.J.Williams, J.Wong, C.Y.Wu

TRIUMF-ISAC Gamma-Ray Escape-Suppressed Spectrometer (TIGRESS): a versatile tool for radioactive beam physics

NUCLEAR REACTIONS Ti(²¹Ne, X), (²⁰Na, X), (²¹Na, X), E=1.7 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin, DSA.

doi: 10.1016/j.nuclphysa.2006.12.022
Citations: PlumX Metrics

2007GA26      Acta Phys.Pol. B38, 1169 (2007)

P.E.Garrett, A.Andreyev, R.A.E.Austin, G.C.Ball, D.Bandyopadhyay, J.A.Becker, A.J.Boston, R.S.Chakrawarthy, D.Cline, R.J.Cooper, R.Churchman, D.Cross, D.Dashdorj, G.A.Demand, M.R.Dimmock, T.E.Drake, P.Finlay, F.Gagon-Miosan, A.T.Gallant, K.L.Green, A.N.Grint, G.F.Grinyer, G.Hackman, L.J.Harkness, A.B.Hayes, R.Kanungo, W.D.Kulp, K.G.Leach, G.Lee, J.R.Leslie, J.-P.Martin, C.Mattoon, W.J.Mills, A.C.Morton, S.Mythili, L.Nelson, O.Newman, P.J.Nolan, E.Padilla-Rodal, C.J.Pearson, A.A.Phillips, M.Porter-Peden, J.J.Ressler, R.Roy, C.Ruiz, H.Savajols, F.Sarazin, M.A.Schumaker, D.P.Scraggs, H.C.Scraggs, M.D.Strange, C.E.Svensson, J.C.Waddington, J.M.Wan, A.Whitbeck, S.J.Williams, J.Wong, J.L.Wood, C.Y.Wu, E.F.Zganjar

Nuclear Structure Research at TRIUMF

NUCLEAR REACTIONS Ti(²⁰Na, ²⁰Na'), (²¹Na, ²¹Na'), E=1.7 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation; deduced levels energies, σ, B(E2).

RADIOACTIVITY ¹⁶⁰Yb, ¹⁶⁰Tm(EC); measured Eγ, Iγ, eγ-coinc. Deduced levels, J, π.

2007GA30      Nucl.Instrum.Methods Phys.Res. B261, 1084 (2007)

P.E.Garrett, A.Andreyev, R.A.E.Austin, G.C.Ball, D.Bandyopadhyay, J.A.Becker, A.J.Boston, H.C.Boston, R.S.Chakrawarthy, R.Churchman, D.Cline, R.J.Cooper, D.Cross, D.Dashdorj, G.A.Demand, M.R.Dimmock, T.Drake, P.Finlay, K.Gagnon, A.T.Gallant, K.L.Green, A.N.Grint, G.F.Grinyer, G.Hackman, L.J.Harkness, A.B.Hayes, R.Kanungo, W.D.Kulp, K.G.Leach, G.Lee, J.R.Leslie, R.Maharaj, J.-P.Martin, C.Mattoon, W.J.Mills, A.C.Morton, L.Nelson, O.Newman, P.J.Nolan, E.Padilla-Rodal, C.J.Pearson, A.A.Phillips, M.Porter-Peden, J.J.Ressler, C.Ruiz, F.Sarazin, M.A.Schumaker, D.P.Scraggs, M.D.Strange, M.Subramanian, C.E.Svensson, J.C.Waddington, J.Wan, A.Whitbeck, S.J.Williams, J.L.Wood, J.C.Wong, C.Y.Wu, E.F.Zganjar

The TRIUMF nuclear structure program and TIGRESS

doi: 10.1016/j.nimb.2007.04.258
Citations: PlumX Metrics

2007MA04      Phys.Rev. C 75, 017302 (2007)

C.M.Mattoon, F.Sarazin, G.Hackman, E.S.Cunningham, R.A.E.Austin, G.C.Ball, R.S.Chakrawarthy, P.Finlay, P.E.Garrett, G.F.Grinyer, B.Hyland, K.A.Koopmans, J.R.Leslie, A.A.Phillips, M.A.Schumaker, H.C.Scraggs, J.Schwarzenberg, M.B.Smith, C.E.Svensson, J.C.Waddington, P.M.Walker, B.Washbrook, E.Zganjar

β decay of ³²Na

RADIOACTIVITY ³²Na(β^-), (β^-n), (β^-2n) [from Ta(p, X)]; measured Eγ, Iγ, γγ-, βγ-coin. ³²Mg deduced levels, J, π. ^30,31Mg deduced transitions.

doi: 10.1103/PhysRevC.75.017302
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2007SC01      Nucl.Instrum.Methods Phys.Res. A570, 437 (2007)

M.A.Schumaker, G.Hackman, C.J.Pearson, C.E.Svensson, C.Andreoiu, A.Andreyev, R.A.E.Austin, G.C.Ball, D.Bandyopadhyay, A.J.Boston, R.S.Chakrawarthy, R.Churchman, T.E.Drake, P.Finlay, P.E.Garrett, G.F.Grinyer, B.Hyland, B.Jones, R.Maharaj, A.C.Morton, A.A.Phillips, F.Sarazin, H.C.Scraggs, M.B.Smith, J.J.Valiente-Dobon, J.C.Waddington, L.M.Watters

Measured and simulated performance of Compton-suppressed TIGRESS HPGe clover detectors

doi: 10.1016/j.nima.2006.10.185
Citations: PlumX Metrics

2007ZG01      Acta Phys.Pol. B38, 1179 (2007)

E.F.Zganjar, T.Achtzehn, D.Albers, C.Andreoiu, A.N.Andreyev, R.A.E.Austin, G.C.Ball, J.A.Behr, G.C.Biosvert, P.Bricault, S.Bishop, R.S.Chakrawarthy, R.Churchman, D.Cross, E.Cunningham, J.M.D'Auria, M.Dombsky, P.Finlay, P.E.Garrett, G.F.Grinyer, G.Hackman, V.Hanemaayer, J.C.Hardy, D.F.Hodgson, B.Hyland, V.Iacob, P.Klages, K.A.Koopmans, W.D.Kulp, J.Lassen, J.P.Lavoie, J.R.Leslie, T.Linder, J.A.Macdonald, H.-B.Mak, D.Melconian, A.C.Morton, W.E.Ormand, C.J.Osborne, C.J.Pearson, M.R.Pearson, A.A.Phillips, A.Piechaczek, J.Ressler, F.Sarazin, G.Savard, M.A.Schumaker, H.C.Scraggs, C.E.Svensson, J.J.Valiente-Dobon, I.S.Towner, J.C.Waddington, P.M.Walker, K.Wendt, J.L.Wood

Superallowed Beta Decay Studies at TRIUMF - Nuclear Structure and Fundamental Symmetries

2005BA87      J.Phys.(London) G31, S1491 (2005)

G.C.Ball, T.Achtzehn, D.Albers, J.S.Al-Khalili, C.Andreoiu, A.Andreyev, S.F.Ashley, R.A.E.Austin, J.A.Becker, P.Bricault, S.Chan, R.S.Chakrawarthy, R.Churchman, H.Coombes, E.S.Cunningham, J.Daoud, M.Dombsky, T.E.Drake, B.Eshpeter, P.Finlay, P.E.Garrett, C.Geppert, G.F.Grinyer, G.Hackman, V.Hanemaayer, B.Hyland, G.A.Jones, K.A.Koopmans, W.D.Kulp, J.Lassen, J.P.Lavoie, J.R.Leslie, Y.Litvinov, J.A.Macdonald, C.Mattoon, D.Melconian, A.C.Morton, C.J.Osborne, C.J.Pearson, M.Pearson, A.A.Phillips, J.J.Ressler, F.Sarazin, M.A.Schumaker, J.Schwarzenberg, H.C.Scraggs, M.B.Smith, C.E.Svensson, J.J.Valiente-Dobon, J.C.Waddington, P.M.Walker, K.Wendt, S.J.Williams, J.L.Wood, E.F.Zganjar

High-resolution γ-ray spectroscopy: a versatile tool for nuclear β-decay studies at TRIUMF-ISAC

doi: 10.1088/0954-3899/31/10/019
Citations: PlumX Metrics

2005GR07      Phys.Rev. C 71, 044309 (2005)

G.F.Grinyer, C.E.Svensson, C.Andreoiu, A.N.Andreyev, R.A.E.Austin, G.C.Ball, R.S.Chakrawarthy, P.Finlay, P.E.Garrett, G.Hackman, J.C.Hardy, B.Hyland, V.E.Iacob, K.A.Koopmans, W.D.Kulp, J.R.Leslie, J.A.Macdonald, A.C.Morton, W.E.Ormand, C.J.Osborne, C.J.Pearson, A.A.Phillips, F.Sarazin, M.A.Schumaker, H.C.Scraggs, J.Schwarzenberg, M.B.Smith, J.J.Valiente-Dobon, J.C.Waddington, J.L.Wood, E.F.Zganjar

High precision measurements of ²⁶Na β^- decay

RADIOACTIVITY ²⁶Na(β^-) [from Si, Ta(p, X)]; measured Eγ, Iγ, T_1/2; deduced log ft. ²⁶Mg deduced levels, J, π, β-feeding intensities.

doi: 10.1103/PhysRevC.71.044309
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Data from this article have been entered in the XUNDL database. For more information, click here.

2005SV01      J.Phys.(London) G31, S1663 (2005)

C.E.Svensson, P.Amaudruz, C.Andreoiu, A.Andreyev, R.A.E.Austin, G.C.Ball, D.Bandyopadhyay, A.J.Boston, R.S.Chakrawarthy, A.A.Chen, R.Churchman, T.E.Drake, P.Finlay, P.E.Garrett, G.F.Grinyer, G.Hackman, B.Hyland, B.Jones, R.Kanungo, R.Maharaj, J.P.Martin, D.Morris, A.C.Morton, C.J.Pearson, A.A.Phillips, J.J.Ressler, R.Roy, F.Sarazin, M.A.Schumaker, H.C.Scraggs, M.B.Smith, N.Starinsky, J.J.Valiente-Dobon, J.C.Waddington, L.M.Watters

TIGRESS: TRIUMF-ISAC gamma-ray escape-suppressed spectrometer

doi: 10.1088/0954-3899/31/10/050
Citations: PlumX Metrics

2005VA09      Phys.Rev. C 71, 034311 (2005)

J.J.Valiente-Dobon, C.E.Svensson, C.D.O'Leary, I.Ragnarsson, C.Andreoiu, D.E.Appelbe, R.A.E.Austin, G.C.Ball, J.A.Cameron, M.P.Carpenter, R.M.Clark, M.Cromaz, D.Dashdorj, P.Fallon, P.Finlay, S.J.Freeman, P.E.Garrett, A.Gorgen, G.F.Grinyer, D.F.Hodgson, B.Hyland, D.Jenkins, F.Johnston-Theasby, P.Joshi, N.S.Kelsall, A.O.Macchiavelli, F.Moore, G.Mukherjee, A.A.Phillips, W.Reviol, D.Sarantites, M.A.Schumaker, D.Seweryniak, M.B.Smith, J.C.Waddington, R.Wadsworth, D.Ward, S.J.Williams

High-spin rotational structures in ⁷⁶Kr

NUCLEAR REACTIONS ⁴⁰Ca(⁴⁰Ca, 4p), E=165 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. ⁷⁶Kr deduced high-spin levels, J, π, T_1/2, transition quadrupole moments, configurations. Gammasphere, Microball arrays, comparison with cranked mean-field model predictions.

doi: 10.1103/PhysRevC.71.034311
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2004KA18      Phys.Rev. C 69, 034330 (2004)

D.Karlgren, R.M.Clark, I.Ragnarsson, C.E.Svensson, D.Ward, R.Wyss, C.Andreoiu, R.A.E.Austin, M.P.Carpenter, M.Cromaz, M.A.Deleplanque, R.M.Diamond, P.Fallon, A.Gorgen, R.V.F.Janssens, T.L.Khoo, F.Kondev, G.J.Lane, T.Lauritsen, I.Y.Lee, A.O.Macchiavelli, T.Rodinger, D.Rudolph, D.G.Sarantites, D.Seweryniak, T.Steinhardt, F.S.Stephens, O.Thelen, K.Vetter, J.C.Waddington

High-angular-momentum structures in ⁶⁴Zn

NUCLEAR REACTIONS ⁴⁰Ca(²⁸Si, 4p), E=122 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. ⁶⁴Zn deduced high-spin levels, J, π, configurations, B(M1)/B(E2). Gammasphere, Microball arrays, cranked Nilsson-Strutinsky calculations.

doi: 10.1103/PhysRevC.69.034330
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2004KE04      Eur.Phys.J. A 20, 131 (2004)

N.S.Kelsall, C.E.Svensson, S.Fischer, D.E.Appelbe, R.A.E.Austin, D.P.Balamuth, G.C.Ball, J.A.Cameron, M.P.Carpenter, R.M.Clark, M.Cromaz, M.A.Deleplanque, R.M.Diamond, P.Fallon, D.F.Hodgson, R.V.F.Janssens, D.G.Jenkins, G.J.Lane, C.J.Lister, A.O.Macchiavelli, C.D.O'Leary, D.G.Sarantites, F.S.Stephens, D.C.Schmidt, D.Seweryniak, K.Vetter, J.C.Waddington, R.Wadsworth, D.Ward, A.N.Wilson, A.V.Afanasjev, S.Frauendorf, I.Ragnarsson

High-spin structure of N ≈ Z nuclei around the A = 72 region

NUCLEAR REACTIONS ⁴⁰Ca(³⁶Ar, n3p), E=145 MeV; ⁴⁰Ca(⁴⁰Ca, 2α), E=164 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. ⁷²Br, ⁷²Kr deduced high-spin levels.

doi: 10.1140/epja/i2002-10338-7
Citations: PlumX Metrics

2004OL04      Phys.Rev. C 69, 034316 (2004)

C.D.O'Leary, R.Wadsworth, P.Fallon, C.E.Svensson, I.Ragnarsson, D.E.Appelbe, R.A.E.Austin, G.C.Ball, J.A.Cameron, M.P.Carpenter, R.M.Clark, M.Cromaz, M.A.Deleplanque, R.M.Diamond, D.F.Hodgson, R.V.F.Janssens, D.G.Jenkins, N.S.Kelsall, G.J.Lane, C.J.Lister, A.O.Macchiavelli, D.Sarantites, F.S.Stephens, D.Seweryniak, K.Vetter, J.C.Waddington, D.Ward

High-spin study of rotational structures in ⁷²Br

NUCLEAR REACTIONS ⁴⁰Ca(³⁶Ar, n3p), E=145 MeV; measured Eγ, Iγ, γγ-, (neutron)γ-, (charged particle)γ-coin. ⁷²Br deduced high-spin levels, J, π, configurations, transition quadrupole moments. Gammasphere, Microball arrays.

doi: 10.1103/PhysRevC.69.034316
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2004SA46      Phys.Rev. C 70, 031302 (2004)

F.Sarazin, J.S.Al-Khalili, G.C.Ball, G.Hackman, P.M.Walker, R.A.E.Austin, B.Eshpeter, P.Finlay, P.E.Garrett, G.F.Grinyer, K.A.Koopmans, W.D.Kulp, J.R.Leslie, D.Melconian, C.J.Osborne, M.A.Schumaker, H.C.Scraggs, J.Schwarzenberg, M.B.Smith, C.E.Svensson, J.C.Waddington, J.L.Wood

Halo neutrons and the β decay of ¹¹Li

RADIOACTIVITY ¹¹Li(β^-), (β^-n) [from Ta(p, X)]; measured Eγ, Iγ, β-delayed neutron spectra. ^10,11Be deduced levels, J, π, halo features.

doi: 10.1103/PhysRevC.70.031302
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2004SM10      Nucl.Phys. A746, 617c (2004)

M.B.Smith, P.M.Walker, R.S.Chakrawarthy, R.A.E.Austin, G.C.Ball, J.J.Carroll, E.Cunningham, P.Finlay, P.E.Garrett, G.F.Grinyer, G.Hackman, B.Hyland, K.Koopmans, W.D.Kulp, J.R.Leslie, A.A.Phillips, R.Propri, P.H.Regan, F.Sarazin, M.A.Schumaker, H.C.Scraggs, T.Shizuma, C.E.Svensson, J.von Schwarzenberg, J.C.Waddington, D.Ward, J.L.Wood, B.Washbrook, E.F.Zganjar

Studies of high-K isomers at TRIUMF-ISAC

RADIOACTIVITY ¹⁷⁸Hf, ^178,179Lu(IT) [from Ta(p, X)]; measured Eγ, Iγ, γγ-coin following high-spin isomer decay.

doi: 10.1016/j.nuclphysa.2004.09.101
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2003AN35      Phys.Rev.Lett. 91, 232502 (2003)

C.Andreoiu, T.Dossing, C.Fahlander, I.Ragnarsson, D.Rudolph, S.Aberg, R.A.E.Austin, M.P.Carpenter, R.M.Clark, R.V.F.Janssens, T.L.Khoo, F.G.Kondev, T.Lauritsen, T.Rodinger, D.G.Sarantites, D.Seweryniak, T.Steinhardt, C.E.Svensson, O.Thelen, J.C.Waddington

Doorway States in the Gamma Decay-Out of the Yrast Superdeformed Band in ⁵⁹Cu

NUCLEAR REACTIONS ⁴⁰Ca(²⁸Si, p2α), E=122 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. ⁵⁹Cu deduced superdeformed band levels J, π, decay-out transitions, doorway states features. Configuration-dependent cranked Nilsson-Strutinsky model calculations.

doi: 10.1103/PhysRevLett.91.232502
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2003AP01      Phys.Rev. C 67, 034309 (2003)

D.E.Appelbe, C.J.Barton, M.H.Muikku, J.Simpson, D.D.Warner, C.W.Beausang, M.A.Caprio, J.R.Cooper, J.R.Novak, N.V.Zamfir, R.A.E.Austin, J.A.Cameron, C.Malcolmson, J.C.Waddington, F.R.Xu

Detailed γ-ray spectroscopy of ⁵⁵Cr and ⁵⁶Cr: Confirmation of the subshell closure at N=32

NUCLEAR REACTIONS ⁴⁸Ca(¹¹B, 2np), (¹¹B, 3np), E=35-40 MeV; measured Eγ, Iγ, γγ-coin. ^55,56Cr deduced high-spin levels, J, π, configurations. Total Routhian surface calculations. Level systematics and shell features in neighboring nuclides discussed.

doi: 10.1103/PhysRevC.67.034309
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2003GR02      Phys.Rev. C 67, 014302 (2003)

G.F.Grinyer, J.C.Waddington, C.E.Svensson, R.A.E.Austin, G.C.Ball, G.Hackman, J.M.O'Meara, C.Osborne, F.Sarazin, H.C.Scraggs, H.D.H.Stover

Half-life of ¹⁷⁶Lu

RADIOACTIVITY ¹⁷⁶Lu(β^-); measured Eγ, Iγ, γγ-coin, T_1/2.

doi: 10.1103/PhysRevC.67.014302
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2003OL02      Phys.Rev. C 67, 021301 (2003)

C.D.O'Leary, C.E.Svensson, S.G.Frauendorf, A.V.Afanasjev, D.E.Appelbe, R.A.E.Austin, G.C.Ball, J.A.Cameron, R.M.Clark, M.Cromaz, P.Fallon, D.F.Hodgson, N.S.Kelsall, A.O.Macchiavelli, I.Ragnarsson, D.Sarantites, J.C.Waddington, R.Wadsworth

Evidence for isovector neutron-proton pairing from high-spin states in N = Z ⁷⁴Rb

NUCLEAR REACTIONS ⁴⁰Ca(⁴⁰Ca, npα), E=164 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. ⁷⁴Rb deduced high-spin levels, J, π, configurations, isovector neutron-proton pairing. Gammasphere, Microball arrays, cranked mean-field calculations.

doi: 10.1103/PhysRevC.67.021301
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2002AN20      Eur.Phys.J. A 14, 317 (2002)

C.Andreoiu, D.Rudolph, I.Ragnarsson, C.Fahlander, R.A.E.Austin, M.P.Carpenter, R.M.Clark, J.Ekman, R.V.F.Janssens, T.L.Khoo, F.G.Kondev, T.Lauritsen, T.Rodinger, D.G.Sarantites, D.Seweryniak, T.Steinhardt, C.E.Svensson, O.Thelen, J.C.Waddington

Evolution of Shapes in ⁵⁹Cu

NUCLEAR REACTIONS ⁴⁰Ca(²⁸Si, p2α), E=122 MeV; measured Eγ, (charged particle)γ-, γγ-coin, DSA. ⁵⁹Cu deduced high-spin levels, J, π, rotational band quadrupole moments. Comparison with Shell model results. Gammasphere and Microball arrays.

doi: 10.1140/epja/i2002-10011-3
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2002AP04      Phys.Rev. C66, 044305 (2002)

D.E.Appelbe, P.J.Twin, C.W.Beausang, D.M.Cullen, D.Curien, G.Duchene, S.Erturk, Ch.Finck, B.Haas, E.S.Paul, D.C.Radford, C.Rigollet, M.B.Smith, O.Stezowski, J.C.Waddington, A.N.Wilson

Evidence for triaxial deformation near N = 86: Collective bands in ^{152, 153}Dy and ¹⁵³Ho

NUCLEAR REACTIONS ¹²⁰Sn(³⁷Cl, 4n), E=177 MeV; ¹²⁴Sn(³⁴S, 5n), E=182 MeV; measured Eγ, Iγ, γγ-coin. ¹⁵³Ho, ¹⁵³Dy deduced high-spin levels, J, π, configurations, triaxial deformation. Eurogam II array, cranked mean-field calculations.

NUCLEAR STRUCTURE ¹⁵²Dy; analyzed data; deduced triaxial superdeformed band. Cranked mean-field analysis.

doi: 10.1103/PhysRevC.66.044305
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2002RU01      Phys.Rev. C65, 034305 (2002)

D.Rudolph, A.Poves, C.Baktash, R.A.E.Austin, J.Eberth, D.Haslip, D.R.LaFosse, M.Lipoglavsek, S.D.Paul, D.G.Sarantites, C.E.Svensson, H.G.Thomas, J.C.Waddington, W.Weintraub, J.N.Wilson

Spherical and Deformed High-Spin States in ³⁸Ar

NUCLEAR REACTIONS ¹⁶O(²⁸Si, 2pα), E=125 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (neutron)γ-coin. ³⁸Ar deduced high-spin levels, J, π, configurations. Gammasphere, Microball arrays.

doi: 10.1103/PhysRevC.65.034305
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2002YU01      Phys.Rev. C65, 061302 (2002)

C.-H.Yu, C.Baktash, J.A.Cameron, M.Devlin, J.Eberth, A.Galindo-Uribarri, D.S.Haslip, D.R.LaFosse, T.J.Lampman, I.-Y.Lee, F.Lerma, A.O.Macchiavelli, S.D.Paul, D.C.Radford, I.Ragnarsson, D.Rudolph, D.G.Sarantites, C.E.Svensson, J.C.Waddington, J.C.Wells, J.N.Wilson

Rotational Bands with Terminating Properties in ⁵⁹Ni

NUCLEAR REACTIONS ⁴⁰Ca(²⁹Si, 2p2α), E=130 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. ⁵⁹Ni deduced high-spin levels, J, π, configurations, T_1/2, transition quadrupole moments, band terminations. Gammasphere, Microball arrays. Comparison with cranked Nilsson-Strutinsky model results.

doi: 10.1103/PhysRevC.65.061302
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2001BU17      Nucl.Phys. A688, 716 (2001)

D.G.Burke, J.C.Waddington, O.P.Jolly

(³He, d) and (α, t) Reaction Studies of ¹⁵⁴Gd: Nature of Kπ = 4⁺ Bands in Heavy Deformed Nuclei

NUCLEAR REACTIONS ¹⁵³Eu(³He, d), E=24 MeV; measured σ(E, θ=30° and 60°). ¹⁵³Eu(α, t), E=27 MeV; measured σ(E, θ=45° and 60°). ¹⁵⁴Gd deduced levels, two-quasiproton admixtures. Enriched targets, magnetic spectrograph. Double-γ-phonon vs hexadecapole interpretations compared.

doi: 10.1016/S0375-9474(00)00597-2
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2001GR07      Nucl.Phys. A682, 41c (2001)

R.Grzywacz, C.H.Yu, Z.Janas, S.D.Paul, J.C.Batchelder, C.R.Bingham, T.N.Ginter, C.J.Gross, J.McConnell, M.Lipoglavsek, A.Piechaczek, D.C.Radford, J.J.Ressler, K.Rykaczewski, J.Shergur, W.B.Walters, E.F.Zganjar, C.Baktash, M.P.Carpenter, R.V.F.Janssens, C.E.Svensson, J.C.Waddington, D.Ward, E.Dragulescu

In-Beam Study of the N = Z Nucleus ₃₃⁶⁶As₃₃ using the Decay Tagging Technique

NUCLEAR REACTIONS ⁴⁰Ca(²⁸Si, np), E=85.3 MeV; measured prompt and delayed Eγ, Iγ, γγ-, (recoil)γ-coin. ⁶⁶As deduced levels, J, π, isomers T_1/2. Clarion array, mass separator, recoil-decay tagging.

doi: 10.1016/S0375-9474(00)00620-5
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2001WA02      Phys.Rev. C63, 014301 (2001)

D.Ward, C.E.Svensson, I.Ragnarsson, C.Baktash, M.A.Bentley, J.A.Cameron, M.P.Carpenter, R.M.Clark, M.Cromaz, M.A.Deleplanque, M.Devlin, R.M.Diamond, P.Fallon, S.Flibotte, A.Galindo-Uribarri, D.S.Haslip, R.V.F.Janssens, T.Lampman, G.J.Lane, I.Y.Lee, F.Lerma, A.O.Macchiavelli, S.D.Paul, D.Radford, D.Rudolph, D.G.Sarantites, B.Schaly, D.Seweryniak, F.S.Stephens, O.Thelen, K.Vetter, J.C.Waddington, J.N.Wilson, C.-H.Yu

Band Structure of ⁶⁸Ge

NUCLEAR REACTIONS ⁴⁰Ca(³²S, 4p), E=134 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. ⁶⁸Ge deduced high-spin levels, J, π, configurations, superdeformed band, terminating bands. Gammasphere, Microball arrays. Cranked mean-field calculations.

doi: 10.1103/PhysRevC.63.014301
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2000AN32      Phys.Rev. C62, 051301 (2000)

C.Andreoiu, D.Rudolph, C.E.Svensson, A.V.Afanasjev, J.Dobaczewski, I.Ragnarsson, C.Baktash, J.Eberth, C.Fahlander, D.S.Haslip, D.R.LaFosse, S.D.Paul, D.G.Sarantites, H.G.Thomas, J.C.Waddington, W.Weintraub, J.N.Wilson, C.-H.Yu

Yrast Superdeformed Band in ⁵⁹Cu

NUCLEAR REACTIONS ⁴⁰Ca(²⁸Si, p2α), E=125 MeV; ²⁸Si(³⁶Ar, pα), E=143 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (neutron)γ-coin. ⁵⁹Cu deduced high-spin levels, J, π, configurations, superdeformed band, quadrupole moments. Gammasphere, Microball arrays.

doi: 10.1103/PhysRevC.62.051301
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2000AP02      Eur.Phys.J. A 8, 153 (2000)

D.E.Appelbe, R.A.E.Austin, G.C.Ball, J.A.Cameron, B.Djerroud, T.E.Drake, S.Flibotte, C.D.O'Leary, A.Melarangi, C.E.Svensson, J.C.Waddington, D.Ward

Gamma-Ray Spectroscopy of ₂₅⁵⁷Mn₃₂ and ₂₅⁵⁸Mn₃₃

NUCLEAR REACTIONS ⁴⁸Ca(¹³C, 2np), (¹³C, 3np), E=40 MeV; measured Eγ, Iγ, γγ-coin. ^57,58Mn deduced high-spin levels, J, π.

doi: 10.1007/s100530050020
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2000AP03      Phys.Rev. C62, 064314 (2000)

D.E.Appelbe, G.Martinez-Pinedo, R.A.E.Austin, J.A.Cameron, J.Chenkin, T.E.Drake, B.Djerroud, S.Flibotte, D.N.Parker, C.E.Svensson, J.C.Waddington, D.Ward

γ-Ray Spectroscopy of ₂₆⁵⁶Fe₃₀

NUCLEAR REACTIONS ⁴⁸Ca(¹³C, 5n), E=65 MeV; measured Eγ, Iγ, γγ-coin. ⁵⁶Fe deduced high-spin levels, J, π, quadrupole moments. Comparison with shell model calculations.

doi: 10.1103/PhysRevC.62.064314
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2000CL01      Phys.Rev. C61, 044311 (2000)

R.M.Clark, J.N.Wilson, D.Appelbe, M.P.Carpenter, C.J.Chiara, M.Cromaz, M.A.Deleplanque, M.Devlin, R.M.Diamond, P.Fallon, D.B.Fossan, R.V.F.Janssens, D.G.Jenkins, N.Kelsall, T.Koike, D.R.LaFosse, G.J.Lane, I.Y.Lee, A.O.Macchiavelli, D.G.Sarantites, D.Seweryniak, K.Starosta, F.S.Stephens, C.E.Svensson, K.Vetter, R.Wadsworth, J.C.Waddington, D.Ward, I.Wiedenhover, B.A.Brown

Yrast and Near-Yrast Excitations Up to High Spin in ₄₈¹⁰⁰Cd₅₂

NUCLEAR REACTIONS ⁴⁶Ti(⁵⁸Ni, 2n2p), E=215 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (neutron)γ-coin. ¹⁰⁰Cd deduced levels, J, π. Gammasphere, Microball arrays. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.61.044311
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2000DJ01      Phys.Rev. C61, 024607 (2000)

B.Djerroud, B.Schaly, S.Flibotte, G.C.Ball, S.Courtin, M.Cromaz, D.S.Haslip, T.Lampman, A.O.Macchiavelli, J.M.Nieminen, C.E.Svensson, J.C.Waddington, D.Ward, J.N.Wilson

Fission Barriers, Coupled-Channel, and Shell Effects at the Coulomb Barrier in the A ∼ 190 Mass Region

NUCLEAR REACTIONS ¹⁴²Nd(⁴⁸Ca, 2n), E=185 MeV; ¹¹⁰Pd(⁸⁰Se, 2n), E=304 MeV; measured γ-ray fold; deduced role of shell effects, coupled channels, fission barrier features. Statistical model calculations.

doi: 10.1103/PhysRevC.61.024607
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2000YU02      Phys.Rev. C62, 041301 (2000)

C.-H.Yu, C.Baktash, J.Dobaczewski, J.A.Cameron, M.Devlin, J.Eberth, A.Galindo-Uribarri, D.S.Haslip, D.R.LaFosse, T.J.Lampman, I.-Y.Lee, F.Lerma, A.O.Macchiavelli, S.D.Paul, D.C.Radford, D.Rudolph, D.G.Sarantites, C.E.Svensson, J.C.Waddington, J.N.Wilson

Superdeformed and Highly Deformed Bands in ⁶⁵Zn and Neutron-Proton Interactions in Zn Isotopes

NUCLEAR REACTIONS ⁴⁰Ca(²⁹Si, 4p), E=130 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, DSA. ⁶⁵Zn deduced high-spin levels, J, π, superdeformed bands average T_1/2, quadrupole moments, deformation, configurations. Cranked mean-field calculations. Gammasphere, Microball arrays.

doi: 10.1103/PhysRevC.62.041301
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1999AN39      Eur.Phys.J. A 6, 5 (1999)

Th.Andersson, D.Rudolph, C.Baktash, J.Eberth, C.Fahlander, D.Haslip, D.R.LaFosse, S.D.Paul, D.G.Sarantites, C.E.Svensson, H.G.Thomas, J.C.Waddington, W.Weintraub, J.N.Wilson, B.A.Brown

High-Spin States in the A = 39 Mirror Nuclei ³⁹Ca and ³⁹K

NUCLEAR REACTIONS ¹⁶O(²⁸Si, nα), (²⁸Si, pα), E=125 MeV; measured Eγ, Iγ, γγ-, nγ-, (charged particle)γ-coin. ³⁹Ca, ³⁹K deduced high-spin levels, J, π, configurations. Gammasphere, Microball detectors. Shell model calculations.

doi: 10.1007/s100500050310
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1999SV01      Phys.Rev.Lett. 82, 3400 (1999)

C.E.Svensson, D.Rudolph, C.Baktash, M.A.Bentley, J.A.Cameron, M.P.Carpenter, M.Devlin, J.Eberth, S.Flibotte, A.Galindo-Uribarri, G.Hackman, D.S.Haslip, R.V.F.Janssens, D.R.LaFosse, T.J.Lampman, I.Y.Lee, F.Lerma, A.O.Macchiavelli, J.M.Nieminen, S.D.Paul, D.C.Radford, P.Reiter, L.L.Riedinger, D.G.Sarantites, B.Schaly, D.Seweryniak, O.Thelen, H.G.Thomas, J.C.Waddington, D.Ward, W.Weintraub, J.N.Wilson, C.H.Yu, A.V.Afanasjev, I.Ragnarsson

Decay Out of the Doubly Magic Superdeformed Band in the N = Z Nucleus ⁶⁰Zn

NUCLEAR REACTIONS ⁴⁰Ca(²⁸Si, 2α), E=125 MeV; ⁴⁰Ca(³²S, 3α), E=134 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. ⁶⁰Zn deduced high-spin levels, J, π, superdeformed band quadrupole moment, linking transitions, B(E2). Gammasphere, Microball arrays.

doi: 10.1103/PhysRevLett.82.3400
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1999YU10      Phys.Rev. C60, 031305 (1999)

C.-H.Yu, C.Baktash, J.Dobaczewski, J.A.Cameron, C.Chitu, M.Devlin, J.Eberth, A.Galindo-Uribarri, D.S.Haslip, D.R.LaFosse, T.J.Lampman, I.-Y.Lee, F.Lerma, A.O.Macchiavelli, S.D.Paul, D.C.Radford, D.Rudolph, D.G.Sarantites, C.E.Svensson, J.C.Waddington, J.N.Wilson

Comparison of Superdeformed Bands in ⁶¹Zn and ⁶⁰Zn: Possible evidence for T = 0 pairing

NUCLEAR REACTIONS ²⁸Si(³⁶Ar, n2p), E=143 MeV; ⁴⁰Ca(²⁹Si, 2α), E=130 MeV; measured Eγ, Iγ(θ), γγ-, (particle)γ-coin. ⁶¹Zn deduced high-spin levels, J, π, transition quadrupole moment, configuration, superdeformed band, possible T=0 pairing. Gammasphere, Microball arrays. Hartree-Fock calculations.

doi: 10.1103/PhysRevC.60.031305
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1998CA26      Phys.Rev. C58, 808 (1998)

J.A.Cameron, J.L.Rodriguez, J.Jonkman, G.Hackman, S.M.Mullins, C.E.Svensson, J.C.Waddington, L.Yao, T.E.Drake, M.Cromaz, J.H.DeGraaf, G.Zwartz, H.R.Andrews, G.Ball, A.Galindo-Uribarri, V.P.Janzen, D.C.Radford, D.Ward

Spectroscopy of Cross-Conjugate Nuclei ⁴⁶Ti - ⁵⁰Cr and ⁴⁷V - ⁴⁹Cr Near the f_7/2-Shell Band Termination

NUCLEAR REACTIONS ²⁸Si(²⁸Si, 2p2α), (²⁸Si, p2α), (²⁸Si, 2pα), (²⁸Si, n2pα), E=125 MeV; measured Eγ, Iγ, γγ-coin, DSA. ^49,50Cr, ⁴⁷V, ⁴⁶Ti deduced high-spin levels, J, π, T_1/2, B(M1), B(E2).

doi: 10.1103/PhysRevC.58.808
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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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1998HA48      Phys.Rev. C58, R1893 (1998)

D.S.Haslip, S.Flibotte, C.E.Svensson, J.C.Waddington

Analysis of Staggering Patterns in Identical Superdeformed Bands: Constraints on a C₄ Hamiltonian

NUCLEAR STRUCTURE ^147,148,149Gd, ^147,148Eu; analyzed superdeformed bands transition energies, staggering; deduced parameters, barrier features. Analytic expression for tunneling amplitude.

doi: 10.1103/PhysRevC.58.R1893
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1998HA53      Phys.Rev. C58, R2649 (1998)

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

Systematic Survey of ΔI = 4 Bifurcation in A ∼ 150 Superdeformed Nuclei

NUCLEAR STRUCTURE ^147,148Eu, ^{147,148,150,151}Gd; analyzed superdeformed bands transition energies; deduced ΔI=4 staggering statistical significance.

doi: 10.1103/PhysRevC.58.R2649
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1998MU23      Phys.Rev. C58, R2626 (1998)

S.M.Mullins, A.Galindo-Uribarri, C.E.Svensson, R.A.E.Austin, G.C.Ball, M.Cromaz, V.P.Janzen, D.C.Radford, I.Ragnarsson, J.C.Waddington, D.Ward

Extruder Proton-Hole Band in the Near-Drip-Line Nucleus ¹²⁷Pr

NUCLEAR REACTIONS ⁹²Mo(⁴⁰Ca, pα), E=175 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. ¹²⁷Pr deduced high-spin levels, J, π, configurations. 8π spectrometer.

doi: 10.1103/PhysRevC.58.R2626
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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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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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1998SV02      Phys.Rev. C58, R2621 (1998)

C.E.Svensson, S.M.Lenzi, D.R.Napoli, A.Poves, C.A.Ur, D.Bazzacco, F.Brandolini, J.A.Cameron, G.de Angelis, A.Gadea, D.S.Haslip, S.Lunardi, E.E.Maqueda, G.Martinez-Pinedo, M.A.Nagarajan, C.Rossi Alvarez, A.Vitturi, J.C.Waddington

High-Spin States in the Odd-Odd N = Z Nucleus ⁵⁰Mn

NUCLEAR REACTIONS ²⁸Si(²⁸Si, npα), E=115 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. ⁵⁰Mn deduced high-spin levels, J, π, configuration. GASP, ISIS detector arrays. Shell model calculations.

doi: 10.1103/PhysRevC.58.R2621
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1998VA03      Phys.Rev. C57, 1634 (1998)

P.Vaska, D.B.Fossan, D.R.LaFosse, H.Schnare, M.P.Waring, S.M.Mullins, G.Hackman, D.Prevost, J.C.Waddington, V.P.Janzen, D.Ward, R.Wadsworth, E.S.Paul

Particle-Hole Induced Electric and Magnetic Rotation in ¹¹¹In

NUCLEAR REACTIONS ⁹⁶Zr(¹⁹F, 4n), E=72 MeV; measured Eγ, Iγ, γγ-coin, DSA. ¹¹¹In deduced high-spin levels, J, π, band structure, configurations. Cranked shell model analysis.

doi: 10.1103/PhysRevC.57.1634
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1998WI13      Phys.Rev. C57, R2090 (1998)

J.N.Wilson, R.A.E.Austin, G.C.Ball, J.DeGraaf, M.Cromaz, S.Flibotte, A.Galindo-Uribarri, G.Gervais, D.S.Haslip, V.P.Janzen, S.M.Mullins, J.M.Nieminen, D.C.Radford, C.E.Svensson, D.Ward, J.C.Waddington

Properties of Superdeformed Band Population in the A ≈ 130 Region

NUCLEAR REACTIONS ¹⁰⁰Mo(³⁶S, 4n), (³⁶S, 5n), E=135-170 MeV; measured Eγ, Iγ, γγ-, (charged-particle)γ-coin. ^131,132Ce deduced superdeformed bands feeding properties vs entrance channel spin, energy.

doi: 10.1103/PhysRevC.57.R2090
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1997GE07      Nucl.Phys. A624, 257 (1997)

G.Gervais, D.C.Radford, Y.R.Shimizu, M.Cromaz, J.DeGraaf, T.E.Drake, S.Flibotte, A.Galindo-Uribarri, D.S.Haslip, V.P.Janzen, M.Matsuzaki, S.M.Mullins, J.M.Nieminen, C.E.Svensson, J.C.Waddington, D.Ward, J.N.Wilson

Collective γ-Vibrational Bands in ¹⁶⁵Ho and ¹⁶⁷Er

NUCLEAR REACTIONS ¹⁶⁵Ho, ¹⁶⁷Er(²⁰⁹Bi, ²⁰⁹Bi'), E=5.4 MeV/nucleon; measured Eγ, Iγ, γγ-coin following Coulomb excitation. ¹⁶⁵Ho, ¹⁶⁷Er deduced high-spin levels, J, π, K, γ-vibrational bands, signature splitting energies, intrinsic moment ratios, identical bands. Compton-suppressed hyperpure Ge detector array, 4π BGO ball. Cranked shell model plus RPA plus particle-vibration coupling calculations.

doi: 10.1016/S0375-9474(97)00320-5
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1997HA06      Phys.Rev. C55, 1101 (1997)

G.Hackman, S.M.Mullins, D.Haslip, S.Flibotte, J.A.Kuehner, J.C.Waddington, R.M.Clark, S.Pilotte

Neutron Excitations and Interactions above the N = 80 Superdeformed Closed Shell: Superdeformation in ¹⁴⁴Eu

NUCLEAR REACTIONS ¹²²Sn(²⁷Al, 5n), E=142 MeV; measured γγ-coin. ¹⁴⁴Eu deduced levels, J, π, superdeformed bands, configuration.

doi: 10.1103/PhysRevC.55.1101
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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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1997NI04      Phys.Rev.Lett. 78, 3832 (1997)

J.M.Nieminen, S.Flibotte, M.Cromaz, A.Galindo-Uribarri, G.Gervais, D.S.Haslip, V.P.Janzen, D.C.Radford, C.E.Svensson, J.C.Waddington, D.Ward, J.N.Wilson

Enhancement of Superdeformed Band Population in ¹³⁵Nd

NUCLEAR REACTIONS ⁶⁴Ni(⁷⁴Ge, X), ¹¹²Cd(²⁶Mg, X), E not given; measured γγ-coin; deduced ^134,135,136Nd, ¹³²Ce production relative σ. ¹³⁵Nd deduced superdeformed band population enhancement entrance channel dependence.

doi: 10.1103/PhysRevLett.78.3832
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1997PO02      Phys.Rev. C55, 1175 (1997)

D.G.Popescu, J.C.Waddington, J.A.Cameron, J.K.Johansson, N.C.Schmeing, W.Schmitz, M.P.Carpenter, V.P.Janzen, J.Nyberg, L.L.Riedinger, H.Hubel, G.Kajrys, S.Monaro, S.Pilotte, C.Bourgeois, N.Perrin, H.Sergolle, D.Hojman, A.Korichi

High-Spin States and Band Structures in ¹⁸²Pt

NUCLEAR REACTIONS ¹⁷⁰Yb(¹⁶O, 4n), E=95 MeV; ¹⁶²Dy(²⁴Mg, 4n), E=129 MeV; ¹⁶³Dy(²⁴Mg, 5n), E=129 MeV; measured Eγ, Iγ, γγ-coin, DCO ratios. ¹⁸²Pt deduced high-spin levels, J, π, δ, B(λ) ratios. Enriched targets, Compton-suppressed hyperpure Ge detector array, 4π BGO ball. Cranked shell model routhians, total routhian surfaces.

doi: 10.1103/PhysRevC.55.1175
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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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1997SV04      Nucl.Instrum.Methods Phys.Res. A396, 228 (1997); Erratum Nucl.Instrum.Methods Phys.Res. A403, 57 (1998)

C.E.Svensson, J.A.Cameron, S.Flibotte, G.Gervais, D.S.Haslip, J.M.Nieminen, J.C.Waddington, J.N.Wilson, G.C.Ball, A.Galindo-Uribarri, V.P.Janzen, D.C.Radford, D.Ward, M.Cromaz, T.E.Drake

Channel Selection for High Spin γ-Ray Spectroscopy Studies Via Total Energy Measurements in Fusion-Evaporation Reactions

NUCLEAR REACTIONS ⁴⁰Ca(²⁴Mg, 2p), (²⁴Mg, 3p), (²⁴Mg, 4p), E=80 MeV; measured Eγ, Iγ, pγ-coin, total E; deduced channel selectivity related features.

doi: 10.1016/S0168-9002(97)00708-0
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1997WI02      Phys.Rev. C55, 519 (1997)

J.N.Wilson, G.C.Ball, M.Cromaz, T.E.Drake, S.Flibotte, A.Galindo-Uribarri, J.deGraff, G.Hackman, S.M.Mullins, J.M.Nieminen, V.P.Janzen, D.C.Radford, J.C.Waddington, D.Ward

Superdeformed Band in ¹³⁰Ce

NUCLEAR REACTIONS ¹⁰⁰Mo(³⁴S, 4n), E=145 MeV; measured γγ-coin. ¹³⁰Ce deduced superdeformed band, valence neutron configuration.

doi: 10.1103/PhysRevC.55.519
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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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1996CA38      Phys.Lett. 387B, 266 (1996)

J.A.Cameron, J.Jonkman, C.E.Svensson, M.Gupta, G.Hackman, D.Hyde, S.M.Mullins, J.L.Rodriguez, J.C.Waddington, A.Galindo-Uribarri, H.R.Andrews, G.C.Ball, V.P.Janzen, D.C.Radford, D.Ward, T.E.Drake, M.Cromaz, J.DeGraaf, G.Zwartz

Collective Properties of ⁴⁸Cr at High Spin

NUCLEAR REACTIONS Si(²⁸Si, xpyα), E=125 MeV; measured (particle)γγ-coin, DCO, DSA. ⁴⁸Cr deduced high-spin levels, J, π, B(λ).

doi: 10.1016/0370-2693(96)01039-8
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1996FL01      Phys.Rev. C53, R533 (1996)

S.Flibotte, M.Cromaz, J.DeGraaf, T.E.Drake, A.Galindo-Uribarri, G.Hackman, V.P.Janzen, S.M.Mullins, D.C.Radford, J.C.Waddington, D.Ward, J.N.Wilson

Absence of Entrance-Channel Effects in the High-Energy γ-Ray Emission from ¹⁴⁶Gd

NUCLEAR REACTIONS ¹¹⁶Sn(³⁰Si, X), E=156 MeV; ⁷⁰Ge(⁷⁶Ge, X), E=319 MeV; measured γ spectra. ¹⁴⁶Gd deduced GDR decay characteristics, absence of entrance channel effects in γ emission.

doi: 10.1103/PhysRevC.53.R533
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1996FL02      Phys.Rev.Lett. 77, 1448 (1996)

S.Flibotte, Ph.Chomaz, M.Colonna, M.Cromaz, J.DeGraaf, T.E.Drake, A.Galindo-Uribarri, V.P.Janzen, J.Jonkman, S.W.Marshall, S.M.Mullins, J.M.Nieminen, D.C.Radford, J.L.Rodriguez, J.C.Waddington, D.Ward, J.N.Wilson

Pre-Equilibrium Effects in the Population of Giant Dipole Resonances

NUCLEAR REACTIONS ¹⁰⁴Pd(³⁶S, X), E=160 MeV; ¹⁰⁰Mo(⁴⁰Ca, X), E=170 MeV; measured high-energy γ-spectra; deduced preequilibrium effects in GDR population.

doi: 10.1103/PhysRevLett.77.1448
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1996GA17      Phys.Rev. C54, 1057 (1996)

A.Galindo-Uribarri, D.Ward, H.R.Andrews, G.C.Ball, D.C.Radford, V.P.Janzen, S.M.Mullins, J.C.Waddington, A.V.Afanasjev, I.Ragnarsson

Lifetime Measurements of Strongly Deformed Rotational Bands in ¹³³Pm

NUCLEAR REACTIONS ⁹⁶Ru(⁴⁰Ca, X), E=176 MeV; measured γγ-coin, DSA. ¹³³Pm deduced high-spin levels, J, π, δ, B(λ), band structure, T_1/2, configuration, deformation parameters. Models comparison.

doi: 10.1103/PhysRevC.54.1057
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1996NI10      Phys.Rev. C54, 2764 (1996)

J.M.Nieminen, S.Flibotte, A.Galindo-Uribarri, G.Viesti, G.C.Ball, D.Bazzacco, M.Cromaz, G.de Angelis, J.DeGraaf, M.De Poli, T.E.Drake, D.Fabris, Ch.Finck, V.P.Janzen, S.Lunardi, M.Lunardon, N.H.Medina, G.Maron, C.M.Petrache, D.C.Radford, C.Rossi Alvarez, O.Stezowski, Ch.Theisen, J.C.Waddington, D.Ward, J.N.Wilson

Superdeformed Band in ¹⁴⁷Tb

NUCLEAR REACTIONS ¹⁰⁰Mo(⁵¹V, 4n), E=230 MeV; measured γγγ-coin. ¹⁴⁷Tb deduced superdeformed band, configuration. Total Routhian surface, single-particle Routhian calculations.

doi: 10.1103/PhysRevC.54.2764
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1996SA15      Phys.Rev.Lett. 76, 4480 (1996)

H.Savajols, A.Korichi, D.Ward, D.Applebe, G.C.Ball, C.Beausang, F.A.Beck, T.Byrski, D.Curien, P.Dagnall, G.de France, D.Disdier, G.Duchene, S.Erturk, C.Finck, S.Flibotte, B.Gall, A.Galindo-Uribarri, B.Haas, G.Hackman, V.P.Janzen, B.Kharraja, J.C.Lisle, J.C.Merdinger, S.M.Mullins, S.Pilotte, D.Prevost, D.C.Radford, V.Rauch, C.Rigollet, D.Smalley, M.B.Smith, O.Stezowski, J.Styczen, Ch.Theisen, P.J.Twin, J.P.Vivien, J.C.Waddington, K.Zuber, I.Ragnarsson

Lifetime Measurements of Superdeformed Bands in ^148-149Gd and ¹⁵²Dy: Evidence for structure-dependent elongations

NUCLEAR REACTIONS ¹²⁴Sn(³⁰Si, 6n), (³⁰Si, 5n), E=158 MeV; ¹²⁰Sn(³⁶S, 4n), E=170 MeV; measured DSA, γγ-coin. ^148,149Gd, ¹⁵²Dy deduced levels, J, π, band structure deformation features, quadrupole moments, superdeformed bands T_1/2.

doi: 10.1103/PhysRevLett.76.4480
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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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1995FL01      Nucl.Phys. A584, 373 (1995)

S.Flibotte, G.Hackman, I.Ragnarsson, Ch.Theisen, H.R.Andrews, G.C.Ball, C.W.Beausang, F.A.Beck, G.Belier, M.A.Bentley, T.Byrski, D.Curien, G.de France, D.Disdier, G.Duchene, B.Haas, D.S.Haslip, V.P.Janzen, P.M.Jones, B.Kharraja, J.A.Kuehner, J.C.Lisle, J.C.Merdinger, S.M.Mullins, E.S.Paul, D.Prevost, D.C.Radford, V.Rauch, J.F.Smith, J.Styczen, P.J.Twin, J.P.Vivien, J.C.Waddington, D.Ward, K.Zuber

Multi-Particle Excitations in the Superdeformed ¹⁴⁹Gd Nucleus

NUCLEAR REACTIONS ¹²⁴Sn(³⁰Si, 5n), E=158 MeV; measured Eγ, Iγ, γn-coin. ¹⁴⁹Gd deduced high-spin levels, J, π, superdeformed bands. Compton-suppressed hyperpure Ge detector array. Nilsson-Strutinsky cranking model calculations.

doi: 10.1016/0375-9474(94)00450-2
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1995HA29      Phys.Rev. C52, R2293 (1995)

G.Hackman, R.Wadsworth, D.S.Haslip, R.M.Clark, J.Dobaczewski, J.Dudek, S.Flibotte, K.Hauschild, I.M.Hibbert, I.-Y.Lee, S.M.Mullins, A.O.Macchiavelli, S.Pilotte, A.T.Semple, I.Thorslund, J.Timar, P.Vaska, J.C.Waddington, L.Walker

Excited Superdeformed Band in ¹⁴²Sm Identical to ¹⁴⁶Gd

NUCLEAR REACTIONS ¹²⁴Sn(²⁴Mg, 6n), E=145 MeV; measured γγ-coin, Eγ, Iγ. ¹⁴²Sm deduced high-spin states, superdeformed band, Iγ, alignment. Hartree-Fock model comparison.

doi: 10.1103/PhysRevC.52.R2293
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1995MU11      Phys.Rev. C52, 99 (1995)

S.M.Mullins, S.Flibotte, G.Hackman, J.L.Rodriguez, J.C.Waddington, A.V.Afanasjev, I.Ragnarsson, H.R.Andrews, A.Galindo-Uribarri, V.P.Janzen, D.C.Radford, D.Ward, M.Cromaz, J.DeGraaf, T.E.Drake, S.Pilotte

Strong Population of a Superdeformed Band in ¹⁴²Eu

NUCLEAR REACTIONS ¹²⁰Sn(²⁷Al, 5n), E=152 MeV; measured γγ-coin, Eγ, Iγ. ¹⁴²Eu deduced levels, J, π, superdeformed band.

doi: 10.1103/PhysRevC.52.99
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1994CH21      Phys.Rev. C49, 3200 (1994)

C.-X.Chen, S.Albergo, Z.Caccia, S.Costa, H.J.Crawford, M.Cronqvist, J.Engelage, P.Ferrando, R.Fonte, L.Grenier, T.G.Guzik, A.Insolia, F.C.Jones, C.N.Knott, P.J.Lindstrom, J.W.Mitchell, R.Potenza, J.Romanski, G.V.Russo, A.Soutoul, O.Testard, C.E.Tull, C.Tuve, J.C.Waddington, W.R.Webber, J.P.Wefel, X.Zhang

Interactions in Hydrogen of Relativistic Neon to Nickel Projectiles: Total charge-changing cross sections

NUCLEAR REACTIONS ¹H(²²Ne, X), (²⁶Mg, X), (³²S, X), (³⁶Ar, X), (⁴⁰Ar, X), (⁴⁰Ca, X), (⁵²Cr, X), (⁵⁸Ni, X), E=400-900 MeV/nucleon; measured σ vs E, mass; deduced optical model parameters. Liquid hydrogen target.

doi: 10.1103/PhysRevC.49.3200
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1994GA31      Phys.Rev. C50, R2655 (1994)

A.Galindo-Uribarri, D.Ward, T.Drake, G.Hackman, V.P.Janzen, S.M.Mullins, S.Pilotte, D.C.Radford, I.Ragnarsson, N.C.Schmeing, J.C.Waddington

Strongly Coupled Enhanced-Deformation Band in ¹³¹Pr

NUCLEAR REACTIONS ⁹⁸Mo(³⁷Cl, 4n), E=155 MeV; measured Eγ, γγ-coin, DSA. ¹³¹Pr deduced high-spin levels, J, π, rotational band structure, enhanced deformation, superdeformation.

doi: 10.1103/PhysRevC.50.R2655
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1994HA59      Nucl.Instrum.Methods Phys.Res. A345, 534 (1994)

D.S.Haslip, G.Hackman, J.C.Waddington

An Automated Search Algorithm for Superdeformed Bands

NUCLEAR STRUCTURE ¹⁴⁹Gd; analyzed γγ-coin data; deduced automated search algorithm technique features, applicability to superdeformed band studies.

NUCLEAR REACTIONS ¹²⁴Sn(³⁰Si, xn), E=158 MeV; analyzed γγ-coin data; deduced automated search algorithm technique features.

doi: 10.1016/0168-9002(94)90512-6
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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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1994MU16      Phys.Rev. C50, R2261 (1994)

S.M.Mullins, N.C.Schmeing, S.Flibotte, G.Hackman, J.L.Rodriguez, J.C.Waddington, L.Yao, H.R.Andrews, A.Galindo-Uribarri, V.P.Janzen, D.C.Radford, D.Ward, J.DeGraaf, T.E.Drake, S.Pilotte, E.S.Paul

Proton Configurations and Pairing Correlations at the N = 80 Superdeformed Shell Closure: Study of ¹⁴⁵Tb

NUCLEAR REACTIONS ¹¹²Sn(³⁷Cl, 2n2p), E=187 MeV; ¹¹⁸Sn(³¹P, 4n), E=160 MeV; measured γγ(charged particle)-.γγ-coin, Eγ, Iγ. ¹⁴⁵Tb deduced superdeformed rotational band, high-spin levels, J, π. Cranked Woods-Saxon-Strutinsky calculations. Hyperpure Ge detectors, BGO suppression shields, BGO total energy, multiplicity filter, CsI detectors coupled to photodiodes, enriched targets.

doi: 10.1103/PhysRevC.50.R2261
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1993FL03      Phys.Rev.Lett. 71, 688 (1993)

S.Flibotte, G.Hackman, Ch.Theisen, H.R.Andrews, G.C.Ball, C.W.Beausang, F.A.Beck, G.Belier, M.A.Bentley, T.Byrski, D.Curien, G.de France, D.Disdier, G.Duchene, P.Fallon, B.Haas, V.P.Janzen, P.M.Jones, B.Kharraja, J.A.Kuehner, J.C.Lisle, J.C.Merdinger, S.M.Mullins, E.S.Paul, D.Prevost, D.C.Radford, V.Rauch, J.F.Smith, J.Styczen, P.J.Twin, J.P.Vivien, J.C.Waddington, D.Ward, K.Zuber

Multiparticle Excitations and Identical Bands in Superdeformed ¹⁴⁹Gd Nucleus

NUCLEAR REACTIONS ¹²⁴Sn(³⁰Si, 5n), E=158 MeV; measured γγ-coin. ¹⁴⁹Gd deduced levels, J, π, superdeformed bands.

doi: 10.1103/PhysRevLett.71.688
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1993FL07      Phys.Rev.Lett. 71, 4299 (1993)

S.Flibotte, H.R.Andrews, G.C.Ball, C.W.Beausang, F.A.Beck, G.Belier, T.Byrski, D.Curien, P.J.Dagnall, G.de France, D.Disdier, G.Duchene, Ch.Finck, B.Haas, G.Hackman, D.S.Haslip, V.P.Janzen, B.Kharraja, J.C.Lisle, J.C.Merdinger, S.M.Mullins, W.Nazarewicz, D.C.Radford, V.Rauch, H.Savajols, J.Styczen, Ch.Theisen, P.J.Twin, J.P.Vivien, J.C.Waddington, D.Ward, K.Zuber, S.Aberg

ΔI = 4 Bifurcation in a Superdeformed Band: Evidence for a C₄ symmetry

NUCLEAR REACTIONS ¹²⁴Sn(³⁰Si, 5n), E=158 MeV; measured Eγ, Iγ, γγ-coin. ¹⁴⁹Gd deduced yrast superdeformed band moment of inertia, evidence for fourfold rotational symmetry.

doi: 10.1103/PhysRevLett.71.4299
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1993GA10      Phys.Rev.Lett. 71, 231 (1993)

A.Galindo-Uribarri, H.R.Andrews, G.C.Ball, T.E.Drake, V.P.Janzen, J.A.Kuehner, S.M.Mullins, L.Persson, D.Prevost, D.C.Radford, J.C.Waddington, D.Ward, R.Wyss

First Evidence for the Hyperdeformed Nuclear Shape at High Angular Momentum

NUCLEAR REACTIONS ¹²⁰Sn(³⁷Cl, xnp), E=187 MeV; measured γγ-, γγ(particle)-coin. ^152,153Dy deduced levels, γ-multipolarity, band structure, moment of inertia, hyperdeformation evidence.

doi: 10.1103/PhysRevLett.71.231
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1993HA03      Phys.Rev. C47, R433 (1993)

G.Hackman, S.M.Mullins, J.A.Kuehner, D.Prevost, J.C.Waddington, A.Galindo-Uribarri, V.P.Janzen, D.C.Radford, N.Schmeing, D.Ward

Superdeformed Band in ¹⁴²Sm

NUCLEAR REACTIONS ¹²⁴Sn(²⁴Mg, xn), E=145 MeV; measured γγ-coin, Eγ, Iγ. ¹⁴²Sm deduced superdeformed rotational band, continuum, dynamic moment of inertia.

doi: 10.1103/PhysRevC.47.R433
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1993HA19      Nucl.Phys. A561, 251 (1993)

B.Haas, V.P.Janzen, D.Ward, H.R.Andrews, D.C.Radford, D.Prevost, J.A.Kuehner, A.Omar, J.C.Waddington, T.E.Drake, A.Galindo-Uribarri, G.Zwartz, S.Flibotte, P.Taras, I.Ragnarsson

Studies of Superdeformation in the Gadolinium Nuclei

NUCLEAR REACTIONS ^120,122,124Sn(²⁸Si, xn), (²⁹Si, xn), (³⁰Si, xn), E=155 MeV; measured Eγ, Iγ, γγ-coin, DCO ratios. ^{145,146,147,148,149}Gd deduced, γ-multipliplicities, J, π, levels, superdeformed bands. Compton-suppressed hyperpure Ge detector array, 4π-bismuth germanate ball. Cranked shell-model-Strutinsky calculations.

doi: 10.1016/0375-9474(93)90153-O
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1993JA04      Phys.Rev.Lett. 70, 1065 (1993)

V.P.Janzen, H.R.Andrews, B.Haas, D.C.Radford, D.Ward, A.Omar, D.Prevost, M.Sawicki, P.Unrau, J.C.Waddington, T.E.Drake, A.Galindo-Uribarri, R.Wyss

The Proton h_11/2 Intruder Orbital: Evidence for collectivity and a strong proton-neutron interaction

NUCLEAR REACTIONS ⁹⁴Mo(²³Na, 2n2p), E=117 MeV; measured γγ-coin, sum spectra. ¹¹³Sb deduced levels, J, π, configuration, band structure, shape features.

doi: 10.1103/PhysRevLett.70.1065
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1993MU05      Phys.Rev. C47, R2447 (1993)

S.M.Mullins, A.Omar, L.Persson, D.Prevost, J.C.Waddington, H.R.Andrews, G.C.Ball, A.Galindo-Uribarri, V.P.Janzen, D.C.Radford, D.Ward, T.E.Drake, D.B.Fossan, D.LaFosse, P.Vaska, M.Waring, R.Wadsworth

Perturbed Alignments within an i_13/2 Neutron Intruder Band in ¹⁴¹Gd

NUCLEAR REACTIONS ¹¹²Sn(³²S, n2p), E=155 MeV; ¹¹²Sn(³³S, 2n2p), E=170 MeV; measured γγ-, γγ(charged particle)-coin. ¹⁴¹Gd deduced levels, J, π, configuration, alignment features. Cranked shell model.

doi: 10.1103/PhysRevC.47.R2447
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1993MU16      Z.Phys. A346, 327 (1993)

S.M.Mullins, G.Hackman, A.Galindo-Uribarri, D.C.Radford, J.C.Waddington, D.Ward

Superdeformation in ¹⁴⁴Eu

NUCLEAR REACTIONS ¹²²Sn(²⁷Al, 5n), E=142 MeV; measured γγ-coin. ¹⁴⁴Eu deduced superdeformed band evidence.

doi: 10.1007/BF01292528
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1993MU19      Phys.Lett. 318B, 592 (1993)

S.M.Mullins, V.P.Janzen, P.Vaska, D.B.Fossan, G.Hackman, D.R.LaFosse, E.S.Paul, D.Prevost, H.Schnare, J.C.Waddington, R.Wadsworth, D.Ward, M.P.Waring

First Observation of a Proton Intruder Band Below the Z = 50 Major Shell Gap. Spectroscopy of ¹¹¹In

NUCLEAR REACTIONS ⁹⁶Zr(¹⁹F, 4n), E=85, 72 MeV; measured γγ-coin, DSA. ¹¹¹In deduced levels, J, π, intruder band features, quadrupole moment, dynamic moments of inertia.

doi: 10.1016/0370-2693(93)90459-U
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1992FL02      Phys.Rev. C45, R889 (1992)

S.Flibotte, H.R.Andrews, T.E.Drake, A.Galindo-Uribarri, B.Haas, V.J.Janzen, D.Prevost, D.C.Radford, J.Rodriguez, P.Romain, J.P.Vivien, J.C.Waddington, D.Ward, G.Zwartz

Entrance-Channel Effects in the Population of Superdeformed Bands in ^{147, 148}Gd

NUCLEAR REACTIONS ¹²⁴Sn(²⁹Si, xn), ¹²²Sn(³⁰Si, xn), E=155 MeV; ⁷⁶Ge(⁷⁶Ge, xn), E=319 MeV; measured Eγ, Iγ, γγ-coin. ^147,148Gd deduced superdeformed bands polulation intensity. Enriched targets, Compton-suppressed hyperpure Ge array.

doi: 10.1103/PhysRevC.45.R889
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1992JA01      Phys.Rev. C45, 613 (1992)

V.P.Janzen, Z.-M.Liu, M.P.Carpenter, L.H.Courtney, H.-Q.Jin, A.J.Larabee, L.L.Riedinger, J.K.Johansson, D.G.Popescu, J.C.Waddington, S.Monaro, S.Pilotte, F.Donau

Prolate and Oblate Band Structures in Odd-Odd ^186,188Au

NUCLEAR REACTIONS ^171,173Yb(¹⁹F, 4n), E=93-94 MeV; measured γγ-coin, γ(θ), γγ(t), Iγ. ^186,188Au deduced levels, J, π, T_1/2, rotational bands, configurations, B(λ) ratios.

doi: 10.1103/PhysRevC.45.613
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1992LA07      Phys.Lett. 279B, 239 (1992)

T.Lauritsen, R.V.F.Janssens, M.P.Carpenter, E.F.Moore, I.Ahmad, P.B.Fernandez, T.L.Khoo, J.A.Kuehner, D.Prevost, J.C.Waddington, U.Garg, W.Reviol, D.Ye, M.W.Drigert

Dynamic Moment of Inertia of the ¹⁹²Hg Superdeformed Band at High Rotational Frequencies

NUCLEAR REACTIONS ¹⁶⁰Gd(³⁶S, 4n), E=154-167 MeV; measured γγγ-coin. ¹⁹²Hg deduced superdeformed states, relative Iγ, increasing dynamic moment of inertia.

doi: 10.1016/0370-2693(92)90386-I
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1992RA17      Nucl.Phys. A545, 665 (1992)

D.C.Radford, H.R.Andrews, G.C.Ball, D.Horn, D.Ward, F.Banville, S.Flibotte, S.Monaro, S.Pilotte, P.Taras, J.K.Johansson, D.Tucker, J.C.Waddington, M.A.Riley, G.B.Hagemann, I.Hamamoto

Multiple Band Structure and Band Termination in ¹⁵⁷Ho Towards Complete High-Spin Spectroscopy

NUCLEAR REACTIONS ¹²⁴Sn(³⁷Cl, 4n), E=155, 165 MeV; measured Eγ, γγ-coin, Iγ(θ, φ). ¹⁵⁷Ho deduced levels, Iγ, J, π, rotational band characteristics, band-mixing interaction strengths.

doi: 10.1016/0375-9474(92)90298-X
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1992VI03      Phys.Lett. 278B, 407 (1992)

J.P.Vivien, D.Balouka, B.Haas, H.R.Andrews, D.C.Radford, D.Ward, V.P.Janzen, D.Prevost, J.C.Waddington, S.Flibotte, S.Pilotte, P.Taras, A.Galindo-Uribarri, H.Kluge, S.Aberg

Radiation Originating from Unresolved Superdeformed States in ¹⁴⁹Gd

NUCLEAR REACTIONS ¹²⁴Sn(³⁰Si, xn), E=155 MeV; measured correlated γγ-coincidence matrix, Iγ. ¹⁴⁹Gd deduced unresolved superdeformed states.

doi: 10.1016/0370-2693(92)90576-P
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1992WA07      Nucl.Phys. A539, 547 (1992)

D.Ward, H.R.Andrews, V.P.Janzen, D.C.Radford, J.K.Johansson, D.Prevost, J.C.Waddington, A.Galindo-Uribarri, T.E.Drake

Gamma-Ray Spectroscopy of ¹²⁷Ba at Moderate Spins

NUCLEAR REACTIONS ¹¹⁷Sn(¹³C, 3n), E=60 MeV; measured Eγ, Iγ, γγ-coin, DCO ratios. ¹²⁷Ba deduced levels, J, δ. Enriched targets, Compton-suppressed hyperpure Ge detector array, 4π-bismuth germanate ball. Cranked-shell model calculations, nuclear triaxial shapes.

doi: 10.1016/0375-9474(92)90293-S
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1991AL06      Nucl.Phys. A526, 407 (1991)

T.K.Alexander, G.C.Ball, J.S.Forster, I.S.Towner, J.R.Leslie, H.-B.Mak, J.Johansson, J.A.Kuehner, J.C.Waddington

The l-Forbidden M1 Decay of the 2522 keV Level in ³⁹K

NUCLEAR REACTIONS ⁴He(³⁹K, α), E=100 MeV; measured Doppler shift attenuation, αγ-coin. ³⁹K levels deduced T_1/2, B(M1).

doi: 10.1016/0375-9474(91)90293-F
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1991CA30      Phys.Rev. C44, 2358 (1991)

J.A.Cameron, D.G.Popescu, J.C.Waddington

High-Spin States in ⁴⁸V, ⁵¹Cr, and ⁵¹Mn

NUCLEAR REACTIONS ⁴⁰Ca(¹⁴N, X), E=40 MeV; ²⁷Al(²⁷Al, X), E=90 MeV; measured γγ-coin, γ(θ). ⁵¹Cr, ⁴⁸V, ⁵¹Mn deduced levels, J, π. Model comparison.

doi: 10.1103/PhysRevC.44.2358
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1991CH40      Phys.Rev.Lett. 67, 2950 (1991)

P.Chowdhury, C.J.Lister, D.Vretenar, Ch.Winter, V.P.Janzen, H.R.Andrews, D.J.Blumenthal, B.Crowell, T.Drake, P.J.Ennis, A.Galindo-Uribarri, D.Horn, J.K.Johansson, A.Omar, S.Pilotte, D.Prevost, D.Radford, J.C.Waddington, D.Ward

Large B(M1) Staggering at High Spins in ⁸⁶Zr: Broken boson pairs in the four-quasiparticle regime

NUCLEAR REACTIONS ⁶⁰Ni(³⁰Si, 2n2p), E=135 MeV; measured DSA, γγ energy correlations, γγ-coin, γγ(θ). ⁸⁶Zr deduced levels, J, π, B(λ), T_1/2, band structure. Interacting boson model, broken pair approximation.

doi: 10.1103/PhysRevLett.67.2950
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1991FL02      Nucl.Phys. A530, 187 (1991)

S.Flibotte, B.Haas, F.Banville, J.Gascon, P.Taras, H.R.Andrews, D.C.Radford, D.Ward, J.C.Waddington

High-Spin States in ¹⁴⁹Gd

NUCLEAR REACTIONS ¹²⁴Sn(³⁰Si, 5n), E=150 MeV; measured Eγ, Iγ, γγ-coin, Iγ(θ), oriented nuclei. ¹⁴⁹Gd deduced levels, J, δ. Enriched targets, Compton-suppressed hyperpure Ge detector array, 4π BGO ball. Deformed Woods-Saxon potential calculations.

doi: 10.1016/0375-9474(91)90762-U
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1991WA20      Nucl.Phys. A529, 315 (1991)

D.Ward, V.P.Janzen, H.R.Andrews, D.C.Radford, G.C.Ball, D.Horn, J.C.Waddington, J.K.Johansson, F.Banville, J.Gascon, S.Monaro, N.Nadon, S.Pilotte, D.Prevost, P.Taras, R.Wyss

Gamma-Ray Spectroscopy of ¹²⁶Ba

NUCLEAR REACTIONS ⁹⁶Zr(³⁴S, 4n), E=155 MeV; ¹¹⁶Sn(¹³C, 3n), E=56 MeV; measured Eγ, Iγ, γγ-coin, Iγ-spin orientation correlation, DCO ratios. ¹²⁶Ba deduced levels, J, δ. Enriched targets, Compton-suppressed hyperpure Ge detector array, 4π-bismuth germanate ball. Cranked shell model calculations, total routhian surface calculations.

doi: 10.1016/0375-9474(91)90798-B
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1990CA22      Nucl.Phys. A513, 125 (1990)

M.P.Carpenter, C.R.Bingham, L.H.Courtney, V.P.Janzen, A.J.Larabee, Z.-M.Liu, L.L.Riedinger, W.Schmitz, R.Bengtsson, T.Bengtsson, W.Nazarewicz, J.-Y.Zhang, J.K.Johansson, D.G.Popescu, J.C.Waddington, C.Baktash, M.L.Halbert, N.R.Johnson, I.Y.Lee, Y.S.Schutz, J.Nyberg, A.Johnson, R.Wyss, J.Dubuc, G.Kajrys, S.Monaro, S.Pilotte, K.Honkanen, D.G.Sarantites, D.R.Haenni

Alignment Processes and Shape Variation in ¹⁸⁴Pt

NUCLEAR REACTIONS ¹⁵⁴Sm(³⁴S, 4n), E=163 MeV; ¹⁷²Yb(¹⁶O, 4n), E=91 MeV; measured Eγ, Iγ, γ(θ), γγ-coin. ¹⁸⁴Pt deduced levels, J, π, γ-branching. Enriched targets, array of Compton-suppression Ge detectors. Total routhian surface calculations.

doi: 10.1016/0375-9474(90)90346-N
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1990HA31      Phys.Rev. C42, R1817 (1990)

B.Haas, D.Ward, H.R.Andrews, G.C.Ball, T.E.Drake, S.Flibotte, A.Galindo-Uribarri, V.P.Janzen, J.K.Johansson, H.Kluge, J.Kuehner, A.Omar, S.Pilotte, D.Prevost, J.Rodriguez, D.C.Radford, P.Taras, J.P.Vivien, J.C.Waddington, S.Aberg

Observation of Excited Proton and Neutron Configurations in the Superdeformed ¹⁴⁹Gd Nucleus

NUCLEAR REACTIONS ¹²⁴Sn(³⁰Si, 5n), E=155 MeV; ¹²⁴Sn(³¹P, 5n), E=156 MeV; measured γ-spectra, γγ-coin. ¹⁴⁹Gd deduced levels, J, π, superdeformed band structure.

doi: 10.1103/PhysRevC.42.R1817
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1990NY02      Nucl.Phys. A511, 92 (1990)

J.Nyberg, A.Johnson, M.P.Carpenter, C.R.Bingham, L.H.Courtney, V.P.Janzen, S.Juutinen, A.J.Larabee, Z.-M.Liu, L.L.Riedinger, C.Baktash, M.L.Halbert, N.R.Johnson, I.Y.Lee, Y.Schutz, J.C.Waddington, D.G.Popescu

High-Spin States in ¹⁸³Pt

NUCLEAR REACTIONS ¹⁵⁴Sm(³⁴S, 5n), E=153 MeV; ¹⁷⁰Yb(¹⁶O, 3n), E=81-84 MeV; measured Eγ, Iγ(θ), Iγ, γγ(t), γγ(X-ray)-coin. ¹⁸³Pt deduced levels, J, π, δ. Enriched targets, Ge(Compton suppressed) detectors, 4π NaI(Tl) ball. Calculated experimental routhians, aligned angular momentum, signature splitting, total routhian surfaces.

doi: 10.1016/0375-9474(90)90028-K
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1990PI11      Nucl.Phys. A514, 545 (1990)

S.Pilotte, S.Flibotte, S.Monaro, N.Nadon, D.Prevost, P.Taras, H.R.Andrews, D.Horn, V.P.Janzen, D.C.Radford, D.Ward, J.K.Johansson, J.C.Waddington, T.E.Drake, A.Galindo-Uribarri, R.Wyss

Rotational Bands and Shape Changes in ¹²⁴Ba

NUCLEAR REACTIONS ⁹⁴Zr(³⁴S, 4n), E=145 MeV; ¹¹⁰Cd(¹⁶O, 2n), E=60 MeV; measured Eγ, Iγ, γγ-coin, Iγ(θ), oriented nuclei. ¹²⁴Ba deduced levels, J, π, δ. Enriched target, Compton-suppressed Ge detector array, 4π bismuth germanate ball. Total routhian surface calculations, cranked shell-model.

doi: 10.1016/0375-9474(90)90155-F
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