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NSR database version of April 11, 2024.

Search: Author = M.Bergstrom

Found 68 matches.

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2017LA17      Phys.Rev. C 96, 044328 (2017)

S.Lalkovski, E.A.Stefanova, S.Kisyov, A.Korichi, D.Bazzacco, M.Bergstrom, A.Gorgen, B.Herskind, H.Hubel, A.Jansen, T.L.Khoo, T.Kutsarova, A.Lopez-Martens, A.Minkova, Zs.Podolyak, G.Schonwasser, O.Yordanov

Structure of the neutron mid-shell nuclei 111, 113Ag64, 66

NUCLEAR REACTIONS 168Er(30Si, X), E=145 MeV; measured Eγ, Iγ, γγ-coin using EUROBALL III array at LNL-Legnaro XTU Tandem accelerator. 111,113Ag; deduced high-spin levels, J, π, γ-branching ratios, band structures, B(M1), B(E2). Comparison with Interacting Boson-Fermion model (IBFM-1) calculations.

NUCLEAR STRUCTURE 111,113Ag, 112,114Cd; calculated levels, J, π, B(E2), B(M1) using Interacting Boson-Fermion model (IBFM-1 for Ag nuclei and IBM-1 for Cd nuclei). Comparison with experimental values.

doi: 10.1103/PhysRevC.96.044328
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2014LA15      Phys.Rev. C 89, 064312 (2014)

S.Lalkovski, D.Ivanova, E.A.Stefanova, A.Korichi, P.Petkov, J.Kownacki, T.Kutsarova, A.Minkova, D.Bazzacco, M.Bergstrom, A.Gorgen, B.Herskind, H.Hubel, A.Jansen, S.Kisyov, T.L.Khoo, F.G.Kondev, A.Lopez-Martens, Zs.Podolyak, G.Schonwasser, O.Yordanov

Coexisting structures in 105Ru

NUCLEAR REACTIONS 168Er(30Si, F), E=142 MeV; measured Eγ, Iγ, γγ-coin using EUROBALL III spectrometer. 105Ru; deduced high-spin levels, J, π, bands, conversion coefficient, multipolarity, B(M1), B(E2). Comparison with rigid-triaxial-rotor-plus-particle model and shell-model calculations, and previous experimental results and evaluated data.

doi: 10.1103/PhysRevC.89.064312
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2012ST13      Phys.Rev. C 86, 044302 (2012)

E.A.Stefanova, S.Lalkovski, A.Korichi, T.Kutsarova, A.Lopez-Martens, F.R.Xu, H.L.Liu, S.Kisyov, A.Minkova, D.Bazzacco, M.Bergstrom, A.Gorgen, F.Hannachi, B.Herskind, H.Hubel, A.Jansen, T.L.Khoo, Zs.Podolyak, G.Schonwasser

Observation of positive-parity bands in 109Pd and 111Pd: Enhanced γ softness

NUCLEAR REACTIONS 168Er(30Si, F), E=142 MeV; measured Eγ, Iγ, γγ-coin following heavy-ion induced fission. Euroball III array for γ detection at Legnaro facility. 109,111Pd; deduced high-spin levels, J, π, bands, alignments. Total Routhian surface (TRS) calculations. Enhanced γ softness.

doi: 10.1103/PhysRevC.86.044302
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2011WI12      J.Phys.:Conf.Ser. 312, 092065 (2011)

A.N.Wilson, A.Korichi, S.Siem, A.Astier, D.Bazzacco, P.Bednarczyk, M.H.Bergstrom, S.Chmel, D.M.Cullen, P.M.Davidson, A.Gorgen, F.Hannachi, H.Hubel, N.Kintz, T.Lauritsen, A.Lopez-Martens, S.Lunardi, S.Naguleswaran, B.M.Nyako, M.Rejmund, G .Schonwasser, C.Schuck, J.F.Sharpey-Schafer, J.Timar, R.Wadsworth, J.Libert

Two-Particle Separation Energies in the Superdeformed Well

NUCLEAR STRUCTURE 190,192,194Hg, 192,194,196Pb; calculated superdeformed quasi-vacuum states using HFB with Skyrme and Gogny forces and GCM. 188,190,192,194,196Hg, 190,192,194,196,198Pb; calculated mass excess, 2n and 2p separation energies. Compared with data.

doi: 10.1088/1742-6596/312/9/092065
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2010WI02      Phys.Rev.Lett. 104, 162501 (2010)

A.N.Wilson, A.Korichi, S.Siem, A.Astier, D.Bazzacco, P.Bednarczyk, M.H.Bergstrom, S.Chmel, D.M.Cullen, P.M.Davidson, A.Gorgen, F.Hannachi, H.Hubel, N.Kintz, T.Lauritsen, A.Lopez-Martens, S.Lunardi, S.Naguleswaran, B.M.Nyako, M.Rejmund, G.Schonwasser, C.Schuck, J.F.Sharpey-Schafer, J.Timar, R.Wadsworth, J.Libert

Two-Particle Separation Energy Trends in the Superdeformed Well

NUCLEAR REACTIONS 160Gd(34S, 4n), E=156 MeV; measured Eγ, Iγ, γγ-coin.; 190Hg deduced energy and J of superdeformed and normal states, two-proton separation energies, critical tests of nuclear models.

doi: 10.1103/PhysRevLett.104.162501
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2009KU03      Phys.Rev. C 79, 014315 (2009)

T.Kutsarova, E.A.Stefanova, A.Minkova, S.Lalkovski, A.Korichi, A.Lopez-Martens, F.Hannachi, H.Hubel, A.Gorgen, A.Jansen, G.Schonwasser, T.L.Khoo, B.Herskind, M.Bergstrom, D.Bazzacco, Z.Podolyak

High-spin level scheme of 194Pb

NUCLEAR REACTIONS 168Er(30Si, 4n)194Pb, E=142 MeV; measured Eγ, Iγ, γγ-coin, angular distributions. 194Pb; deduced levels, J, π, multipolarity, rotational bands.

doi: 10.1103/PhysRevC.79.014315
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2007LA03      Phys.Rev. C 75, 014314 (2007)

S.Lalkovski, S.Ilieva, A.Minkova, N.Minkov, T.Kutsarova, A.Lopez-Martens, A.Korichi, H.Hubel, A.Gorgen, A.Jansen, G.Schonwasser, B.Herskind, M.Bergstrom, Zs.Podolyak

Octupole collectivity in 98, 100, 102Mo

NUCLEAR REACTIONS 168Er(30Si, F)98Mo/100Mo/102Mo, E=142 MeV; measured Eγ, Iγ, γγ-coin. 98,100,102Mo deduced levels, J, π. Euroball III array, Soft-octupole vibration model analysis.

doi: 10.1103/PhysRevC.75.014314
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2002BE61      Phys.Lett. 540B, 199 (2002)

G.Benzoni, A.Bracco, F.Camera, S.Leoni, B.Million, A.Maj, A.Algora, A.Axelsson, M.Bergstrom, N.Blasi, M.Castoldi, S.Frattini, A.Gadea, B.Herskind, M.Kmiecik, G.Lo Bianco, J.Nyberg, M.Pignanelli, J.Styczen, O.Wieland, M.Zieblinski, A.Zucchiatti

Effect of E1 Decay in the Population of Superdeformed Structures

NUCLEAR REACTIONS 110Pd(37Cl, 4n), E=165 MeV; measured Eγ, Iγ, γγ-coin, quasi-continuum transitions. 143Eu deduced superdeformed band transitions, relation between superdeformed band population and high-energy E1 decay. Euroball array and BaF2 detectors.

doi: 10.1016/S0370-2693(02)02175-5
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2002JE05      Nucl.Phys. A703, 3 (2002)

D.R.Jensen, G.B.Hagemann, I.Hamamoto, S.W.Odegard, M.Bergstrom, B.Herskind, G.Sletten, S.Tormanen, J.N.Wilson, P.O.Tjom, K.Spohr, H.Hubel, A.Gorgen, G.Schonwasser, A.Bracco, S.Leoni, A.Maj, C.M.Petrache, P.Bednarczyk, D.Curien

Wobbling Phonon Excitations, Coexisting with Normal Deformed Structures in 163Lu

NUCLEAR REACTIONS 139La(29Si, 5n), E=152 MeV; measured Eγ, Iγ, γγ-coin. 163Lu deduced high-spin levels, J, π, configurations, B(M1)/B(E2), triaxial superdeformed bands, wobbling modes. Euroball IV array, particle-rotor calculations.

doi: 10.1016/S0375-9474(01)01459-2
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2001AM02      Phys.Lett. 506B, 39 (2001)

H.Amro, P.G.Varmette, W.C.Ma, B.Herskind, G.B.Hagemann, G.Sletten, R.V.F.Janssens, M.Bergstrom, A.Bracco, M.Carpenter, J.Domscheit, S.Frattini, D.J.Hartley, H.Hubel, T.L.Khoo, F.Kondev, T.Lauritsen, C.J.Lister, B.Million, S.W.Odegard, R.B.Piercey, L.L.Riedinger, K.A.Schmidt, S.Siem, I.Wiedenhover, J.N.Wilson, J.A.Winger

First Evidence for Triaxial Superdeformation in 168Hf

NUCLEAR REACTIONS 96Zr(76Ge, 4n), E=310 MeV; measured Eγ, Iγ, γγ-coin, DSA. 168Hf deduced high-spin levels, J, π, superdeformed bands, transition quadrupole moments, moments of inertia. Comparison with cranked Shellmodel calculations. Gammasphere array.

doi: 10.1016/S0370-2693(01)00369-0
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2001HA15      Acta Phys.Pol. B32, 1083 (2001)

F.Hannachi, A.Korichi, A.N.Wilson, A.Lopez-Martens, M.Rejmund, C.Schuck, Ch.Vieu, G.Chmel, A.Gorgen, H.Hubel, D.Rossbach, G.Schonwasser, M.Bergstrom, B.M.Nyako, J.Timar, D.Bazzacco, S.Lunardi, C.Rossi-Alvarez, P.Bednarczyk, N.Kintz, S.Naguleswaran, A.Astier, D.M.Cullen, J.F.Sharpey-Schafer, T.Lauritsen, R.Wadsworth

Collective Excitations in the Superdeformed Well

NUCLEAR REACTIONS 160Gd(34S, 4n), E=156 MeV; measured Eγ, Iγ, γγ-coin, γ-ray polarization. 190Hg deduced superdeformed bands, multipolarity of inter-band transitions, collective excitation of excited band. Euroball-IV array.


2001HA54      Acta Phys.Pol. B32, 2545 (2001)

I.Hamamoto, S.W.Odegard, G.B.Hagemann, D.R.Jensen, M.Bergstrom, B.Herskind, G.Sletten, S.Tormanen, J.N.Wilson, P.O.Tjom, K.Spohr, H.Hubel, A.Gorgen, G.Schonwasser, A.Bracco, S.Leoni, A.Maj, C.M.Petrache, P.Bednarczyk, D.Curien

First Evidence for the Wobbling Mode in a Triaxial Superdeformed Odd-A Nucleus

NUCLEAR REACTIONS 139La(29Si, 5n), E=152 MeV; measured Eγ, Iγ, γγ-coin. 163Lu deduced high-spin levels, J, π, triaxial superdeformed band, B(M1)/B(E2), wobbling mode. Euroball IV array. Particle-rotor model calculations.


2001KO16      Phys.Rev.Lett. 86, 2746 (2001)

A.Korichi, A.N.Wilson, F.Hannachi, A.Lopez-Martens, M.Rejmund, C.Schuck, Ch.Vieu, G.Chmel, A.Gorgen, H.Hubel, D.Rossbach, G.Schonwasser, M.Bergstrom, B.M.Nyako, J.Timar, D.Bazzacco, S.Lunardi, C.Rossi-Alvarez, P.Bednarczyk, N.Kintz, S.Naguleswaran, A.Astier, D.M.Cullen, J.F.Sharpey-Schafer, T.Lauritsen, R.Wadsworth

Linear Polarization Measurement of Interband Transitions in Superdeformed 190Hg: Model-independent evidence for octupole vibrational structures

NUCLEAR REACTIONS 160Gd(34S, 4n), E=156 MeV; measured Eγ, Iγ, γγ-coin, γ-ray polarization. 190Hg deduced superdeformed bands, multipolarity of interband transitions, octupole collective nature of excited superdeformed band. Euroball IV array.

doi: 10.1103/PhysRevLett.86.2746
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2001LE04      Phys.Lett. 498B, 137 (2001)

S.Leoni, A.Bracco, F.Camera, B.Million, A.Algora, A.Axelsson, G.Benzoni, M.Bergstrom, N.Blasi, M.Castoldi, S.Frattini, A.Gadea, B.Herskind, M.Kmiecik, G.Lo Bianco, A.Maj, J.Nyberg, M.Pignanelli, J.Styczen, E.Vigezzi, M.Zieblinski, A.Zucchiatti

Quantum Tunneling of the Excited Rotational Bands in the Superdeformed Nucleus 143Eu

NUCLEAR REACTIONS 110Pd(37Cl, 4n), E=165, 170 MeV; measured Eγ, Iγ, γγ-coin, DSA. 143Eu deduced T1/2, transition quadrupole moments for excited superdeformed bands, number of bands, decay-out properties. Comparison with cranked mean-field calculations.

doi: 10.1016/S0370-2693(00)01367-8
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2001OD02      Nucl.Phys. A682, 427c (2001)

S.W.Odegard, G.B.Hagemann, M.Bergstrom, B.Herskind, D.R.Jensen, G.Sletten, S.Tormanen, J.Wilson, P.O.Tjom, K.Spohr, H.Hubel, A.Gorgen, G.Schonwasser, A.Bracco, S.Leoni, A.Maj, C.Petrache, P.Bednarczyk, D.Curien, I.Hamamoto

Search for the Wobbling Mode Built on Triaxial Super Deformation

NUCLEAR REACTIONS 139La(29Si, 5n), E=152 MeV; measured Eγ, Iγ, γγ-coin. 163Lu deduced high-spin levels, J, π, triaxial superdeformed bands, B(M1)/B(E2), possible wobbling mode. Euroball IV array. Cranked mean-field calculations.

doi: 10.1016/S0375-9474(00)00669-2
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2001OD03      Phys.Rev.Lett. 86, 5866 (2001)

S.W.Odegard, G.B.Hagemann, D.R.Jensen, M.Bergstrom, B.Herskind, G.Sletten, S.Tormanen, J.N.Wilson, P.O.Tjom, I.Hamamoto, K.Spohr, H.Hubel, A.Gorgen, G.Schonwasser, A.Bracco, S.Leoni, A.Maj, C.M.Petrache, P.Bednarczyk, D.Curien

Evidence for the Wobbling Mode in Nuclei

NUCLEAR REACTIONS 139La(29Si, 5n), E=152 MeV; measured Eγ, Iγ, γγ-coin. 163Lu deduced high-spin levels, J, π, configurations, transitions B(E2), B(M1), wobbling mode. Euroball IV array. Particle-rotor model calculations.

doi: 10.1103/PhysRevLett.86.5866
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2001RO20      Phys.Lett. 513B, 9 (2001)

D.Rossbach, A.Gorgen, H.Hubel, E.Mergel, G.Schonwasser, A.N.Wilson, F.Azaiez, A.Astier, D.Bazzacco, M.Bergstrom, C.Bourgeois, N.Buforn, F.Hannachi, K.Hauschild, A.Korichi, W.Korten, T.Kroll, A.Lopez-Martens, R.Lucas, H.J.Maier, N.Redon, P.Reiter, C.Rossi-Alvarez, O.Stezowski, P.Thirolf

Evidence for Octupole Vibration in Superdeformed 196Pb

NUCLEAR REACTIONS 170Er(30Si, 4n), E=144 MeV; measured Eγ, Iγ, γγ-coin, γ-ray polarization. 196Pb deduced high-spin levels, superdeformed bands, octupole vibration. Euroball IV array.

doi: 10.1016/S0370-2693(01)00749-3
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2001SC49      Eur.Phys.J. A 12, 15 (2001)

K.A.Schmidt, M.Bergstrom, G.B.Hagemann, B.Herskind, G.Sletten, P.G.Varmette, J.Domscheit, H.Hubel, S.W.Odegard, S.Frattini, A.Bracco, B.Million, M.P.Carpenter, R.V.F.Janssens, T.L.Khoo, T.Lauritsen, C.J.Lister, S.Siem, I.Wiedenhover, D.J.Hartley, L.L.Riedinger, A.Maj, W.C.Ma, R.Terry

Study of 169Hf at High Rotational Frequency

NUCLEAR REACTIONS 96Zr(76Ge, 3n), E=310 MeV; measured Eγ, Iγ, γγ-coin. 169Hf deduced high-spin levels, J, π, configurations. Gammasphere array, cranked mean-field calculations.

doi: 10.1007/s100500170035
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2001WI11      Phys.Lett. 505B, 6 (2001)

A.N.Wilson, J.Timar, I.Ahmad, A.Astier, F.Azaiez, M.H.Bergstrom, D.J.Blumenthal, B.Crowell, M.P.Carpenter, L.Ducroux, B.J.P.Gall, F.Hannachi, H.Hubel, T.L.Khoo, R.V.F.Janssens, A.Korichi, T.Lauritsen, A.Lopez-Martens, M.Meyer, D.Nisius, E.S.Paul, M.G.Porquet, N.Redon, J.F.Sharpey-Schafer, R.Wadsworth, J.N.Wilson, I.Ragnarsson

Magnetic Dipole Bands in 190Hg: First evidence of excitations across the Z=82 sub-shell in Hg nuclei

NUCLEAR REACTIONS 160Gd(34S, 4n), E=153 MeV; measured Eγ, Iγ, γγ-coin, γ-ray polarization. 190Hg deduced high-spin levels, J, π, B(M1)/B(E2), magnetic dipole bands. Eurogam II array, cranked mean-field calculations.

doi: 10.1016/S0370-2693(01)00332-X
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2000BO06      Nucl.Instrum.Methods Phys.Res. A443, 287 (2000)

S.Bouneau, M.G.Porquet, G.Sletten, N.Hashimoto, T.R.Saitoh, J.Duprat, M.Bergstrom, P.G.Varmette, G.Hagemann, F.Azaiez, C.Bourgeois

Characteristics of a Segmented Clover Germanium Detector in a Fusion-Evaporation Reaction with Low γ Multiplicity

NUCLEAR REACTIONS 27Al(28Si, n3p), (28Si, np2α), E=100 MeV; measured Eγ, Iγ; deduced detector segmentation effects.

doi: 10.1016/S0168-9002(99)01089-X
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2000BR22      Nucl.Phys. A673, 64 (2000)

A.Bracco, S.Frattini, S.Leoni, F.Camera, B.Million, N.Blasi, G.Falconi, G.Lo Bianco, M.Pignanelli, E.Vigezzi, B.Herskind, M.Bergstrom, P.Varmette, S.Tormanen, A.Maj, M.Kmiecik, D.R.Napoli, M.Matsuo

The Rotational γ-Continuum in the Mass Region A ≈ 110

NUCLEAR REACTIONS 54Cr(64Ni, 4n), (64Ni, 2nα), E=230-270 MeV; measured Eγ, Iγ, γγ-coin, DSA. 112Sn, 114Te deduced high-spin quasicontinuum collectivity, related features. Fluctuation analysis.

doi: 10.1016/S0375-9474(00)00149-4
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2000BR50      Phys.Scr. T88, 182 (2000)

A.Bracco, F.Camera, S.Leoni, B.Million, S.Frattini, A.Maj, B.Herskind, A.Algora, A.Axelsson, M.Bergstrom, N.Blasi, M.Castoldi, A.Gadea, M.Kmiecik, G.Lo Bianco, J.Nyberg, M.Pignanelli, J.Styczen, M.Zieblinski, A.Zucchiatti

Search for the GDR Built on Superdeformed Nuclei

NUCLEAR REACTIONS 110Pd(37Cl, 4n), E=165, 170 MeV; measured Eγ, Iγ, γγ-coin. 143Eu deduced possible deexcitation of superdeformed GDR. Euroball array, BaF2 detectors. Comparison with statistical model predictions.

doi: 10.1238/Physica.Topical.088a00182
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2000CU01      Nucl.Phys. A673, 3 (2000)

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

High-Spin States and Lifetime Measurements in 171Hf

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

doi: 10.1016/S0375-9474(00)00061-0
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2000HA63      Acta Phys.Hung.N.S. 12, 191 (2000)

F.Hannachi, A.Korichi, A.N.Wilson, A.Lopez-Martens, M.Rejmund, C.Schuck, Ch.Vieu, G.Chmel, A.Gorgen, H.Hubel, D.Rossbach, G.Schonwasser, M.Bergstrom, B.M.Nyako, J.Timar, D.Bazzacco, S.Lunardi, C.Rossi-Alvarez, P.Bednarczyk, N.Kintz, S.Naguleswaran, A.Astier, D.M.Cullen, J.F.Sharpey-Schafer, T.Lauritsen, R.Wadsworth

Experiments Evidence of Octupole Vibrations in the Superdeformed Well

NUCLEAR REACTIONS 160Gd(34S, 4n), E=156 MeV; measured Eγ, Iγ, γγ-coin, γ-ray polarization. 190Hg deduced octupole vibrational nature of excited superdeformed band. Euroball IV array.


2000LE17      Nucl.Phys. A671, 71 (2000)

S.Leoni, T.Dossing, A.Bracco, S.Frattini, G.Montingelli, E.Vigezzi, M.Bergstrom, G.B.Hagemann, B.Herskind, M.Matsuo

Covariance Analysis of Selection Rules Governing the γ-Decay Cascades of the Rotational Nucleus 164Yb

NUCLEAR REACTIONS 138Ba(30Si, 4n), E=140, 145, 150, 155 MeV; measured Eγ, Iγ, γγ-coin. 164Yb deduced high-spin levels continuum feeding properties. Eurogam II array. Covariance analysis of quasicontinuum coincidence spectra.

doi: 10.1016/S0375-9474(99)00842-8
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2000RI11      Eur.Phys.J. A 8, 165 (2000)

D.Ringkjobing Jensen, J.Domscheit, G.B.Hagemann, M.Bergstrom, B.Herskind, B.S.Nielsen, G.Sletten, P.G.Varmette, S.Tormanen, H.Hubel, W.Ma, A.Bracco, F.Camera, F.Demaria, S.Frattini, B.Million, D.Napoli, A.Maj, B.N.Nyako, D.T.Joss, M.Aiche

Co-Existing Coupling Schemes at High Spin in 166Hf

NUCLEAR REACTIONS 96Zr(74Ge, 4n), E=310 MeV; measured Eγ, Iγ, γγ-coin. 166Hf deduced high-spin levels, J, π, band configurations, alignments, Routhians. Euroball III array.

doi: 10.1007/s100530050022
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1999AX02      Eur.Phys.J. A 6, 175 (1999)

A.Axelsson, J.Nyberg, A.Atac, M.H.Bergstrom, B.Herskind, G.de Angelis, T.Back, D.Bazzacco, A.Bracco, F.Camera, B.Cederwall, C.Fahlander, J.H.Huijnen, S.Lunardi, B.Million, D.R.Napoli, J.Persson, M.Piiparinen, C.Rossi Alvarez, G.Sletten, P.G.Varmette, M.Weiszflog

Excited Superdeformed Band in 143Eu

NUCLEAR REACTIONS 110Pd(37Cl, 4n), E=160, 165 MeV; measured Eγ, Iγ, γγ-coin. 143Eu deduced excited superdeformed band transitions, decay-out features. Euroball array. Cranked mean-field calculations.

doi: 10.1007/s100500050332
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1999BA84      Nucl.Phys. A657, 113 (1999)

R.A.Bark, S.Tormanen, T.Back, B.Cederwall, S.W.Odegard, J.F.C.Cocks, K.Helariutta, P.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, P.Kuusiniemi, M.Leino, M.Muikku, P.Rahkila, A.Savelius, M.Bergstrom, F.Ingebretsen, A.Maj, M.Mattiuzzi, W.Mueller, L.L.Riedinger, T.Saitoh, P.O.Tjom

Coexistence of Triaxial and Prolate Shapes in 171Ir

NUCLEAR REACTIONS 116Sn(58Ni, 2np), E=260, 267 MeV; measured Eγ, Iγ, (recoil)γ-, γγ-coin. 171Ir deduced high-spin levels, J, π, rotational band structure, configurations, triaxiality, shaped-coexistance, band mixing. Cranked mean-field calculations, potential energy surfaces, tilted-axis cranking.

doi: 10.1016/S0375-9474(99)00319-X
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1999DO34      Nucl.Phys. A660, 381 (1999)

J.Domscheit, S.Tormanen, B.Aengenvoort, H.Hubel, R.A.Bark, M.Bergstrom, A.Bracco, R.Chapman, D.M.Cullen, C.Fahlander, S.Frattini, A.Gorgen, G.B.Hagemann, A.Harsmann, B.Herskind, H.J.Jensen, S.L.King, S.Lenzi, D.Napoli, S.W.Odegard, C.M.Petrache, H.Ryde, U.J.van Severen, G.Sletten, P.O.Tjom, C.Ur

Triaxial Superdeformation in 163Lu

NUCLEAR REACTIONS 139La(29Si, 5n), E=145 MeV; measured Eγ, Iγ, γγ-coin. 163Lu deduced high-spin levels, J, π, superdeformed band J, π, linking transitions, possible triaxial deformation. Euroball array. Cranked mean-field calculations, potential energy surfaces.

doi: 10.1016/S0375-9474(99)00392-9
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1999DR12      Nucl.Instrum.Methods Phys.Res. A430, 260 (1999)

Ch.Droste, K.Starosta, A.Wierzchucka, T.Morek, S.G.Rohozinski, J.Srebrny, M.Bergstrom, B.Herskind, E.Wesolowski

PPCO: Polarization-Polarization Correlation from Oriented Nuclei

NUCLEAR REACTIONS 138Ba(30Si, 4n), E not given; analyzed γ-ray polarization, correlations from oriented nuclei. Eurogam II segmented detectors.

doi: 10.1016/S0168-9002(99)00224-7
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1999FR11      Nucl.Phys. A649, 387c (1999)

S.Frattini, A.Bracco, S.Leoni, B.Million, B.Herskind, T.Dossing, M.Bergstrom, G.B.Hagemann

The Rotational Quadrupole Moment of Continuum-States at High-Spin in 164Yb

NUCLEAR REACTIONS 138Ba(30Si, 4n), E=150 MeV; measured Eγ, Iγ, γγ-coin, DSA. 164Yb deduced quasicontinuum bands T1/2, quadrupole moments. Covariance analysis.

doi: 10.1016/S0375-9474(99)00088-3
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1999FR37      Phys.Rev.Lett. 83, 5234 (1999)

S.Frattini, A.Bracco, S.Leoni, F.Camera, B.Million, N.Blasi, G.Lo Bianco, M.Pignanelli, E.Vigezzi, B.Herskind, T.Dossing, M.Bergstrom, P.Varmette, S.Tormanen, A.Maj, M.Kmiecik, D.R.Napoli, M.Matsuo

Unresolved γ Rays in 114Te: Mass dependence of rotational damping

NUCLEAR REACTIONS 54Cr(64Ni, 4n), E=230-270 MeV; measured Eγ, Iγ, γγ-coin. 114Te deduced high-spin quasicontinuum moment of inertia, rotational damping width. Euroball array. Fluctuation analysis, cranked mean-field calculations.

NUCLEAR STRUCTURE 114Te, 164,168Yb; analyzed γγ-coin data; deduced mass scaling of rotational damping width. Fluctuation analysis, cranked mean-field calculations.

doi: 10.1103/PhysRevLett.83.5234
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1999JE02      Eur.Phys.J. A 4, 9 (1999)

K.Jessen, W.Andrejtscheff, M.Bergstrom, P.von Brentano, A.Dewald, B.Herskind, H.Meise, C.Schumacher, G.Sletten, O.Stuch, D.Weisshaar, I.Wiedenhover, J.Wrzesinski

A New High-Spin Isomer in 145Sm

NUCLEAR REACTIONS 122Sn(27Al, 3np), E=127 MeV; measured Eγ, Iγ, γγ(t). 145Sm deduced high-spin isomer T1/2. Nordball array.

doi: 10.1007/s100500050197
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1999SA59      Nucl.Phys. A660, 121 (1999)

T.R.Saitoh, N.Hashimoto, G.Sletten, R.A.Bark, S.Tormanen, M.Bergstrom, K.Furuno, K.Furutaka, G.B.Hagemann, T.Hayakawa, T.Komatsubara, A.Maj, S.Mitarai, M.Oshima, J.Sampson, T.Shizuma, P.G.Varmette

Structure of the Doubly Odd Nucleus 180Ta Description of 23 Bands

NUCLEAR REACTIONS 176Yb(11B, 3nα), E=52, 55, 57 MeV; measured Eγ, Iγ, γγ-, αγ-coin. 180Ta deduced high-spin levels, J, π, T1/2, configurations, rotational bands, B(M1)/B(E2), gK factors. Slow beam pulsing, band mixing analysis, BCS calculations with blocking, astrophysical implications.

doi: 10.1016/S0375-9474(99)00356-5
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1999SA60      Nucl.Phys. A660, 171 (1999); Erratum Nucl.Phys. A669, 381 (2000)

T.R.Saitoh, N.Saitoh-Hashimoto, G.Sletten, R.A.Bark, M.Bergstrom, P.Regan, S.Tormanen, P.G.Varmette, P.M.Walker, C.Wheldon

Collective and Intrinsic Structures in 183W

NUCLEAR REACTIONS 176Yb(14C, 3nα), E=68 MeV; measured Eγ, Iγ, γγ-, αγ-coin. 183W deduced high-spin levels, J, π, T1/2, rotational bands, configurations, B(M1)/B(E2), gK factors. Slow beam pulsing, BCS calculations with blocking.

doi: 10.1016/S0375-9474(99)00381-4
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1999SC20      Phys.Rev. C60, 014312 (1999)

I.Schneider, R.S.Chakrawarthy, I.Wiedenhover, A.Schmidt, H.Meise, P.Petkov, A.Dewald, P.von Brentano, O.Stuch, K.Jessen, D.Weisshaar, C.Schumacher, O.Vogel, G.Sletten, B.Herskind, M.Bergstrom, J.Wrzesinski

Magnetic Dipole Band in 124Xe

NUCLEAR REACTIONS 110Pd(18O, 4n), E=86 MeV; measured Eγ, Iγ, γγ-coin. 124Xe deduced high-spin levels, J, π, B(M1)/B(E2), configurations, magnetic dipole band. Nordball array.

doi: 10.1103/PhysRevC.60.014312
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1999TO08      Phys.Lett. 454B, 8 (1999)

S.Tormanen, S.W.Odegard, G.B.Hagemann, A.Harsmann, M.Bergstrom, R.A.Bark, B.Herskind, G.Sletten, P.O.Tjom, A.Gorgen, H.Hubel, B.Aengenvoort, U.J.van Severen, C.Fahlander, D.Napoli, S.Lenzi, C.Petrache, C.Ur, H.J.Jensen, H.Ryde, R.Bengtsson, A.Bracco, S.Frattini, R.Chapman, D.M.Cullen, S.L.King

Triaxial Superdeformed Bands in 164Lu and Enhanced E1 Decay-Out Strength

NUCLEAR REACTIONS 139La(29Si, 4n), E=145 MeV; measured Eγ, Iγ, γγ-coin. 164Lu deduced high-spin levels, J, π, configurations, triaxial deformation. Euroball array. Cranked mean-field calculations.

doi: 10.1016/S0370-2693(99)00346-9
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1998BO20      Eur.Phys.J. A 2, 245 (1998)

S.Bouneau, F.Azaiez, J.Duprat, I.Deloncle, M.G.Porquet, A.Astier, M.Bergstrom, C.Bourgeois, L.Ducroux, B.J.P.Gall, M.Kaci, Y.Le Coz, M.Meyer, E.S.Paul, N.Redon, M.A.Riley, H.Sergolle, J.F.Sharpey-Schafer, J.Timar, A.N.Wilson, R.Wyss

Decay from Superdeformed Yrast States to Normal Deformed States in 193Tl

NUCLEAR REACTIONS 181Ta(16O, 4n), E=110 MeV; measured Eγ, Iγ, γγ-coin. 193Tl deduced high-spin levels J, π, superdeformed bands, linking transitions.

doi: 10.1007/s100500050115
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1998BO32      Phys.Rev. C58, 3260 (1998)

S.Bouneau, F.Azaiez, J.Duprat, I.Deloncle, M.G.Porquet, A.Astier, M.Bergstrom, C.Bourgeois, L.Ducroux, B.J.P.Gall, M.Kaci, Y.Le Coz, M.Meyer, E.S.Paul, N.Redon, M.A.Riley, H.Sergolle, J.F.Sharpey-Schafer, J.Timar, A.N.Wilson, R.Wyss, P.-H.Heenen

Intrinsic Proton States Around the Superdeformed Shell Closure Z = 80

NUCLEAR REACTIONS 181Ta(16O, 4n), E=110 MeV; measured Eγ, Iγ, γγ-coin. 193Tl deduced superdeformed bands transitions, moments of inertia, configurations, decoupling parameter. Intrinsic proton states. Eurogam II. Cranked Woods-Saxon calculations.

doi: 10.1103/PhysRevC.58.3260
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1998ES06      Nucl.Phys. A640, 163 (1998)

J.M.Espino, G.B.Hagemann, I.G.Bearden, R.A.Bark, M.Bergstrom, A.Bracco, B.Herskind, H.J.Jensen, S.Leoni, C.Martinez-Torre, B.Million, P.O.Tjom

Structure of Excited Bands in 162Tm and Residual Interactions

NUCLEAR REACTIONS 130Te(37Cl, 5n), E=166 MeV; measured Eγ, Iγ, γγ-coin. 162Tm deduced high-spin levels, J, π, rotational band structure, configurations, alignments, B(M1)/B(E2), signature inversion, proton-neutron interactions.

doi: 10.1016/S0375-9474(98)00433-3
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1998FR14      Phys.Rev.Lett. 81, 2659 (1998)

S.Frattini, A.Bracco, S.Leoni, P.Bosetti, B.Herskind, T.Dossing, M.Bergstrom, G.B.Hagemann, H.Ryde, J.P.Vivien, A.Bagshow, D.Smalley, A.G.Smith

Rotational Quadrupole Moment of Thermally Excited High Spin States in 164Yb

NUCLEAR REACTIONS 138Ba(30Si, 4n), E=150 MeV; measured Eγ, Iγ, γγ-coin, DSA. 164Yb deduced high-spin levels, discrete, quasicontinuum transitions T1/2, quadrupole moments.

doi: 10.1103/PhysRevLett.81.2659
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1998HA51      Eur.Phys.J. A 2, 327 (1998)

N.Hashimoto, T.R.Saitoh, G.Sletten, R.A.Bark, M.Bergstrom, K.Furuno, T.Komatsubara, T.Shizuma, S.Tormanen, P.G.Varmette

T-Band Phenomena in 183Re

NUCLEAR REACTIONS 176Yb(11B, 4n), E=52, 57 MeV; measured Eγ, Iγ, γγ-coin, γγ(t). 183Re deduced high-spin levels, J, π, configurations, B(M1)/B(E2), aligned angular momentum.

doi: 10.1007/s100500050127
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1998JE05      Eur.Phys.J. A 2, 113 (1998)

K.Jessen, M.Bergstrom, P.von Brentano, A.Dewald, B.Herskind, H.Meise, C.Schumacher, G.Sletten, D.Weisshaar, I.Wiedenhover, J.Wrzesinski

Systematics of Related High-Spin Isomers in 144Sm and Other N = 82 Nuclei

NUCLEAR REACTIONS 122Sn(27Al, 4np), E=127 MeV; measured Eγ, Iγ(t), γγ-coin. 144Sm deduced high-spin levels, configurations, isomer T1/2. Other N=82 high-spin isomers discussed.

doi: 10.1007/s100500050098
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1998KM01      Eur.Phys.J. A 1, 11 (1998)

M.Kmiecik, A.Maj, B.Herskind, A.Bracco, R.A.Bark, M.Bergstrom, F.Camera, G.Hagemann, N.Hashimoto, A.Holm, S.Leoni, T.Saitoh, T.S.Tveter

Possible Evidence for the Entrance Channel Effect in Reactions Leading to 170W(*)

NUCLEAR REACTIONS 110Pd(60Ni, xn), (60Ni, xnα), E=255, 260 MeV; 122Te(48Ti, xn), (48Ti, xnα), E=208, 215 MeV; measured neutron multiplicity vs excitation energy; deduced evidence for entrance channel effects.


1998SA60      Eur.Phys.J. A 3, 197 (1998)

T.R.Saitoh, N.Hashimoto, G.Sletten, R.A.Bark, S.Tormanen, M.Bergstrom, K.Furuno, K.Furutaka, G.B.Hagemann, T.Hayakawa, T.Komatsubara, A.Maj, S.Mitarai, M.Oshima, J.Sampson, T.Shizuma, P.G.Varmette

Rotational Bands in 181Ta

NUCLEAR REACTIONS 176Yb(11B, 2nα), E=52, 57 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 181Ta deduced high-spin levels J, π, configurations, B(M1)/B(E2). PEX, Nordball arrays.

doi: 10.1007/s100500050166
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1998SC23      Eur.Phys.J. A 2, 21 (1998)

A.Schmidt, I.Schneider, H.Meise, I.Wiedenhover, O.Stuch, K.Jessen, D.Weisshaar, C.Schumacher, P.von Brentano, G.Sletten, B.Herskind, M.Bergstrom, J.Wrzesinski

High Spin Structure in 123Xe

NUCLEAR REACTIONS 110Pd(18O, 5n), E=86 MeV; measured Eγ, Iγ, γγ-coin. 123Xe deduced high-spin levels, J, π, band structure.

doi: 10.1007/s100500050086
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1998TO28      Nuovo Cim. 111A, 685 (1998)

S.Tormanen, G.B.Hagemann, A.Harsmann, M.Bergstrom, R.A.Bark, B.Herskind, G.Sletten, S.W.Odegard, P.O.Tjom, A.Gorgen, H.Hubel, B.Aengenvoort, U.J.van Severen, H.Ryde, C.Fahlander, D.Napoli, S.Lenzi, C.Petrache, C.Ur, H.J.Jensen, A.Bracco, S.Frattini, R.Chapman, D.M.Cullen, S.L.King

High-Spin Studies of 164Lu using EUROBALL

NUCLEAR REACTIONS 139La(29Si, 4n), E=145 MeV; measured Eγ, Iγ, γγ-coin. 164Lu deduced high-spin levels, J, π, deformation. Cranking model analysis. Euroball array.


1997JE02      Z.Phys. A357, 245 (1997)

K.Jessen, M.Bergstrom, P.von Brentano, A.Dewald, B.Herskind, H.Meise, C.Schumacher, G.Sletten, O.Stuch, D.Weisshaar, I.Wiedenhover, J.Wrzesinski

A New High-Spin Isomer in 145Eu

NUCLEAR REACTIONS 122Sn(27Al, 4n), E=127 MeV; measured γγ-coin, energy correlations. 145Eu deduced high-spin isomer, T1/2.

doi: 10.1007/s002180050240
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1997LE26      Phys.Lett. 409B, 71 (1997)

S.Leoni, B.Herskind, T.Dossing, A.Atac, I.G.Bearden, M.Bergstrom, C.Fahlander, G.B.Hagemann, A.Holm, D.T.Joss, M.Lipoglavsek, A.Maj, P.J.Nolan, J.Nyberg, M.Palacz, E.S.Paul, J.Persson, M.J.Piiparinen, N.Redon, A.T.Semple, G.Sletten, J.P.Vivien

Four Independent Decay Properties in the Super-Deformed Well of 143Eu

NUCLEAR REACTIONS 110Pd(37Cl, 4n), E=160 MeV; measured Eγ, Iγ, γγ-coin. 143Eu deduced superdeformed level density, rotational damping width, B(E2), feeding properties. Statistical model.

doi: 10.1016/S0370-2693(97)00869-1
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1996AT03      Z.Phys. A355, 343 (1996)

A.Atac, A.Axelsson, I.G.Bearden, M.H.Bergstrom, J.Nyberg, M.Palacz, J.Persson, M.Piiparinen, C.Fahlander, G.B.Hagemann, B.Herskind, D.T.Joss, S.Leoni, M.Lipoglavsek, P.J.Nolan, E.S.Paul, N.Redon, L.Roos, A.T.Semple, G.Sletten, K.Tucek

Single-Step Link of the Superdeformed Band in 143Eu

NUCLEAR REACTIONS 110Pd(37Cl, 4n), E=160 MeV; measured γγ-coin. 143Eu deduced superdeformed band decay associated transition, related features.

doi: 10.1007/s002180050120
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1996BO02      Phys.Rev. C53, R9 (1996)

S.Bouneau, A.N.Wilson, F.Azaiez, J.F.Sharpey-Schafer, A.Korichi, I.Deloncle, M.G.Porquet, J.Timar, A.Astier, M.Bergstrom, C.Bourgeois, L.Ducroux, J.Duprat, B.J.P.Gall, F.Hannachi, M.Kaci, Y.Le Coz, A.Lopez-Martens, M.Meyer, E.S.Paul, N.Perrin, S.Pilotte, N.Redon, M.A.Riley, C.Schuck, H.Sergolle, R.Wyss

The i13/2 Proton Intruder Orbital in the Superdeformed 193Tl Nucleus: Effective magnetic moment and blocking of proton pairing

NUCLEAR REACTIONS 181Ta(18O, 6n), E=110 MeV; measured γγ-coin, Eγ, Iγ. 193Tl deduced levels, J, π, superdeformed band structure, γ-multipolarity, (g(k)-g(R))/(Q0).

doi: 10.1103/PhysRevC.53.R9
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1996BO15      Acta Phys.Pol. B27, 197 (1996)

S.Bouneau, A.N.Wilson, F.Azaiez, J.F.Sharpey-Schafer, A.Korichi, I.Deloncle, M.G.Porquet, J.Timar, A.Astier, M.Bergstrom, C.Bourgeois, L.Ducroux, J.Duprat, B.J.P.Gall, F.Hannachi, M.Kaci, Y.Le Coz, A.Lopez-Martens, M.Meyer, E.S.Paul, N.Perrin, S.Pilotte, N.Redon, M.A.Riley, C.Schuck, H.Sergolle, R.Wyss

Proton Excitations in the SD Nuclei of the Mass 190 Region

NUCLEAR REACTIONS 181Ta(18O, 6n), E=110 MeV; measured γγ-coin. 193Tl deduced levels, J, π, superdeformed bands, configuration, moments of inertia.


1996WI08      Phys.Rev. C54, 559 (1996)

A.N.Wilson, J.Timar, J.F.Sharpey-Schafer, B.Crowell, M.P.Carpenter, R.V.F.Janssens, D.J.Blumenthal, I.Ahmad, A.Astier, F.Azaiez, M.Bergstrom, L.Ducroux, B.J.P.Gall, F.Hannachi, T.L.Khoo, A.Korichi, T.Lauritsen, A.Lopez-Martens, M.Meyer, D.Nisius, E.S.Paul, M.G.Porquet, N.Redon, J.N.Wilson, T.Nakatsukasa

Collective and Quasiparticle Excitations in Superdeformed 190Hg

NUCLEAR REACTIONS 160Gd(34S, 4n), E ≈ 155 MeV; measured γγ-coin, Eγ, Iγ. 190Hg deduced high-spin levels, J, π, B(λ), superdeformed bands.

doi: 10.1103/PhysRevC.54.559
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1995BA67      Nucl.Phys. A591, 265 (1995)

R.A.Bark, G.B.Hagemann, B.Herskind, H.J.Jensen, W.Korten, J.Wrzesinski, H.Carlsson, M.Bergstrom, A.Brockstedt, A.Nordlund, H.Ryde, P.Bosetti, S.Leoni, F.Ingebretsen, P.O.Tjom

More than Thirty Bands in 177Re

NUCLEAR REACTIONS 130Te(51V, 4n), E=225 MeV; 163Dy(19F, 5n), E=105 MeV; measured Eγ, γγ-coin, Iγ. 177Re deduced high-spin levels, J, π, configurations, rotational bands, B(M1)/B(E2) ratios, g(K) values, alignments, band structure. Crossing frequencies, cranked shell model, band-mixing, Nilsson-Strutinsky potential energy surfaces, shape coexistence.

doi: 10.1016/0375-9474(95)00187-6
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1995BE65      Nucl.Instrum.Methods Phys.Res. A364, 560 (1995)

C.W.Beausang, D.Prevost, M.H.Bergstrom, G.de France, B.Haas, J.C.Lisle, Ch.Theisen, J.Timar, P.J.Twin, J.N.Wilson

Using High-Fold Data from the New Generation of γ-Ray Detector Arrays

NUCLEAR REACTIONS 124Sn(30Si, 5n), E=162 MeV; 124Sn(34S, 6n), E=182 MeV; measured γγ-coin spectra; deduced data analysis associated problems. High efficiency γ-ray spectrometers.

doi: 10.1016/0168-9002(95)00438-6
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1995FA09      Phys.Rev. C52, 93 (1995)

P.Fallon, C.W.Beausang, S.Asztalos, D.Nisius, R.V.F.Janssens, M.Bergstrom, M.Carpenter, B.Cederwall, S.Clarke, B.Crowell, M.A.Deleplanque, R.M.Diamond, R.G.Henry, T.L.Khoo, T.Lauritsen, I.Y.Lee, A.O.Macchiavelli, F.S.Stephens, P.J.Twin

Proton and Neutron Excitations in Superdeformed 150Tb

NUCLEAR REACTIONS 124Sn(31P, 5n), E=167 MeV; measured Eγ-Eγ-coin. 150Tb deduced levels, J, π, superdeformed bands.

doi: 10.1103/PhysRevC.52.93
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1995LE20      Nucl.Phys. A587, 513 (1995)

S.Leoni, B.Herskind, T.Dossing, P.Rasmussen, P.Bosetti, A.Bracco, S.Frattini, M.Matsuo, N.Nica, E.Vigezzi, A.Atac, M.Bergstrom, A.Brockstedt, H.Carlsson, P.Ekstrom, F.Ingebretsen, H.J.Jensen, J.Jongman, G.B.Hagemann, R.M.Lieder, T.Lonnroth, A.Maj, B.Million, A.Nordlund, J.Nyberg, M.Piiparinen, H.Ryde, D.C.Radford, M.Sugawara, P.O.Tjom, A.Virtanen

The Distribution of the Rotational Transition Strength in Warm Nuclei Studied through γ-Ray Correlations

NUCLEAR REACTIONS 130Te(37Cl, 5n), (37Cl, 4n), E=166 MeV; measured γγγ-coin, γ-multiplicity. 162,163Tm deduced rotational motion damping, transition strength.

doi: 10.1016/0375-9474(95)00024-U
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1995NO04      Nucl.Phys. A591, 117 (1995)

A.Nordlund, R.Bengtsson, P.Ekstrom, M.Bergstrom, A.Brockstedt, H.Carlsson, H.Ryde, Y.Sun, A.Atac, G.B.Hagemann, B.Herskind, H.J.Jensen, J.Jongman, S.Leoni, A.Maj, J.Nyberg, P.O.Tjom

Probing the Limits of Complete Spectroscopy in 164Yb

NUCLEAR REACTIONS 152Sm(16O, 4n), E=83.2 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ). 164Yb deduced levels, J, configurations, routhians, alignments. Cranked shell model calculations. Array of Compton-suppressed Ge-dectors.

doi: 10.1016/0375-9474(95)00124-J
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1994BE02      Nucl.Phys. A569, 469 (1994)

R.Bengtsson, T.Bengtsson, M.Bergstrom, H.Ryde, G.B.Hagemann

On the use of Spin Adiabatic Energy Surfaces: Applications to the description of rotational bands in 171,172W

NUCLEAR STRUCTURE 171,172W; calculated levels, equilibrium deformations, transitional quadrupole moments.

doi: 10.1016/0375-9474(94)90315-8
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1994BR09      Nucl.Phys. A571, 337 (1994)

A.Brockstedt, J.Lyttkens-Linden, M.Bergstrom, L.P.Ekstrom, H.Ryde, J.C.Bacelar, J.D.Garrett, G.B.Hagemann, B.Herskind, F.R.May, P.O.Tjom, S.Frauendorf

Interpretation of Bands in 163Er within the Tilted Rotation Scheme Enchanced E1 Decay Strength

NUCLEAR REACTIONS 150Nd(18O, 5n), E=83 MeV; measured Eγ, γγ-coin, Iγ. 163Er deduced levels, J, π, B(M1)/B(E2), B(E1), high-K, multi-quasiparticle states. Tilted cranking calculations.

doi: 10.1016/0375-9474(94)90065-5
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1994CL01      Phys.Rev. C50, 84 (1994)

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

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

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

doi: 10.1103/PhysRevC.50.84
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1994CL02      Phys.Rev. C50, 1222 (1994)

R.M.Clark, R.Wadsworth, K.Hauschild, I.M.Hibbert, E.Dragulescu, C.W.Beausang, M.H.Bergstrom, S.Clarke, P.J.Dagnall, P.M.Jones, E.S.Paul, A.T.Semple, J.F.Sharpey-Schafer, J.Simpson, W.Satula, R.Wyss

Superdeformation in the Pb Nuclei and the Evolution of the Dynamic Moments of Inertia

NUCLEAR REACTIONS 186W(18O, xn), E=113 MeV; measured Eγ, Iγ, γγ-coin. 194,196,198Pb deduced superdeformed band features, dynamic moments of inertia. Comparison with cranked Woods-Saxon calculations. Enriched targets, hyperpure Ge detectors, BGO suppression shields.

doi: 10.1103/PhysRevC.50.1222
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1994ES01      Nucl.Phys. A567, 377 (1994)

J.Espino, J.D.Garrett, G.B.Hagemann, P.O.Tjom, C.-H.Yu, M.Bergstrom, L.Carlen, L.P.Ekstrom, J.Lyttkens-Linden, H.Ryde, R.Bengtsson, T.Bengtsson, R.Chapman, D.Clarke, F.Khazaie, J.C.Lisle, J.N.Mo

Rotational Band Structures in 171,172W Aspects on Signature Partnership at High Spin

NUCLEAR REACTIONS 146Nd(30Si, 5n), (30Si, 4n), E=160 MeV; measured Eγ, Iγ, σ(Eγ, θ), γγ-coin. 171,172W deduced levels, J, π, γ-branching, B(M1)/B(E2) ratios, experimental routhians, aligned angular momentum. Enriched targets, arrays of Compton-suppressed Ge-detectors.

doi: 10.1016/0375-9474(94)90155-4
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1994UR01      Nucl.Phys. A578, 204 (1994)

W.Urban, J.C.Bacelar, J.R.Jongman, R.F.Noorman, M.J.A.de Voigt, J.Nyberg, G.Sletten, M.Bergstrom, H.Ryde

Study of High-Spin States in the Nucleus 149Eu

NUCLEAR REACTIONS 139La(13C, 3n), E=58 MeV; measured Eγ, Iγ, γγ(t), DCO-ratios, γ linear polarization, σ(Eγ). 149Eu deduced high-spin levels, J, π, γ multipolarity. NORDBALL multi-Ge detector array, BaF2 multiplicity filter.

doi: 10.1016/0375-9474(94)90976-8
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1993BR10      Nucl.Phys. A557, 469c (1993)

A.Brockstedt, J.Lyttkens-Linden, M.Bergstrom, L.P.Ekstrom, H.Ryde, J.C.Bacelar, S.Frauendorf, J.D.Garrett, G.B.Hagemann, B.Herskind, F.R.May, P.O.Tjom

Interpretation of Bands in 163Er within the Tilted Rotation Scheme

NUCLEAR REACTIONS 150Nd(18O, 5n), E=83 MeV; measured γγ-coin. 163Er deduced levels, J, π, band structure, K, configuration. Tilted rotation scheme interpretation.

doi: 10.1016/0375-9474(93)90563-D
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1993CA02      Nucl.Phys. A551, 295 (1993)

H.Carlsson, M.Bergstrom, A.Brockstedt, L.P.Ekstrom, J.Lyttkens-Linden, H.Ryde, R.A.Bark, G.B.Hagemann, J.D.Garrett, R.Chapman, D.Clarke, F.Khazaie, J.C.Lisle, J.N.Mo

Back-Bending in the πi13/2 Band and Proton-Neutron Interactions in 171Re

NUCLEAR REACTIONS 123Sb(52Cr, 4n), E=236 MeV; measured Eγ, Iγ, γγ-coin. 171Re deduced levels, J, π, configurations, alignments, B(M1)/B(E2) ratios, pairing, shape coexistence, band structure. Cranking shell model, three-band mixing calculations.

doi: 10.1016/0375-9474(93)90483-E
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1991JE04      Z.Phys. A340, 351 (1991)

H.J.Jensen, G.B.Hagemann, P.O.Tjom, S.Frauendorf, A.Atac, M.Bergstrom, A.Bracco, A.Brockstedt, H.Carlsson, P.Ekstrom, J.M.Espino, B.Herskind, F.Ingebretsen, J.Jongman, S.Leoni, R.M.Lieder, T.Lonnroth, A.Maj, B.Million, A.Nordlund, J.Nyberg, M.Piiparinen, H.Ryde, M.Sugawara, A.Virtanen

Interaction Strength and Shape Difference for the h9/2 and h11/2 Configurations in 163Tm

NUCLEAR REACTIONS 148Nd(19F, 4n), E=85 MeV; 130Te(37Cl, 4n), E=166 MeV; measured γ-spectra, multiplicities, γγ-coin. 163Tm deduced levels, J, π, configuration, B(λ). Model comparisons.

doi: 10.1007/BF01290322
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1990YU01      Nucl.Phys. A511, 157 (1990)

C.-H.Yu, G.B.Hagemann, J.M.Espino, K.Furuno, J.D.Garrett, R.Chapman, D.Clarke, F.Khazaie, J.C.Lisle, J.N.Mo, M.Bergstrom, L.Carlen, P.Ekstrom, J.Lyttkens, H.Ryde

High-Spin Spectroscopic Study of 167Lu

NUCLEAR REACTIONS 123Sb(48Ca, 4n), E=206 MeV; measured Eγ, Iγ, σ(Eγ, θ), γγ-coin. 167Lu deduced levels, J, π, γ-branching, B(M1)/B(E2) ratios, experimental routhians, aligned angular momentum. Enriched targets, array of Compton-suppressed Ge-detectors.

doi: 10.1016/0375-9474(90)90031-G
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Note: The following list of authors and aliases matches the search parameter M.Bergstrom: , M.H.BERGSTROM