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NSR database version of April 11, 2024.

Search: Author = F.A.Beck

Found 97 matches.

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2008RO02      Phys.Rev. C 77, 014308 (2008)

J.Robin, Th.Byrski, G.Duchene, F.A.Beck, D.Curien, N.Dubray, J.Dudek, A.Gozdz, A.Odahara, N.Schunck, N.Adimi, D.E.Appelbe, P.Bednarczyk, A.Bracco, B.Cederwall, S.Courtin, D.M.Cullen, O.Dorvaux, S.Ertuck, G.de France, B.Gall, P.Joshi, S.L.King, A.Korichi, K.Lagergren, G.Lo Bianco, S.Leoni, A.Lopez-Martens, S.Lunardi, B.Million, A.Nourredine, E.Pachoud, E.S.Paul, C.Petrache, I.Piqueras, N.Redon, A.Saltarelli, J.Simpson, O.Stezowski, R.Venturelli, J.P.Vivien, K.Zuber

Extended investigation of superdeformed bands in 151, 152Tb nuclei

NUCLEAR REACTIONS 130Te(27Al, xn), E=155 MeV; measured Eγ, Iγ, γγ-coin. 151,152Tb; deduced levels, J, π, superdeformed bands, dynamical moments, configurations; calculated single-particle energy levels. Compared with calculations and superdeformed bands in 150Tb, 152Dy.

doi: 10.1103/PhysRevC.77.014308
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2008RO23      Phys.Rev. C 78, 034319 (2008)

J.Robin, A.Odahara, G.Duchene, F.A.Beck, P.Twin, Th.Byrski, D.Curien, N.Adimi, D.E.Appelbe, P.Bednarczyk, A.Bracco, B.Cederwall, S.Courtin, D.M.Cullen, O.Dorvaux, S.Ertuck, G.De France, B.Gall, P.Joshi, S.L.King, A.Korichi, K.Lagergren, G.Lo Bianco, S.Leoni, A.Lopez-Martens, S.Lunardi, B.Million, A.Nourredine, E.Pachoud, E.S.Paul, C.Petrache, I.Piqueras, N.Redon, A.Saltarelli, J.Simpson, O.Stezowski, R.Venturelli, J.P.Vivien, K.Zuber

Discrete decay of the yrast superdeformed band in the 151Tb nucleus

NUCLEAR REACTIONS 130Te(27Al, 6n), E=155 MeV; measured Eγ, Iγ, γγ-coin. 151Tb; deduced levels, J, π, superdeformed bands. 149Gd, 152Dy; systematics of deformed bands.

doi: 10.1103/PhysRevC.78.034319
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2007BE20      Phys.Rev. C 75, 047301 (2007)

G.Benzoni, J.Robin, A.Bracco, F.C.L.Crespi, A.De Conto, S.Leoni, B.Million, D.Montanari, G.Duchene, D.Curien, Th.Byrski, F.A.Beck, P.Bednarczyk, S.Courtin, O.Dorvaux, B.J.P.Gall, P.Joshi, A.Nourreddine, I.Piqueras, J.P.Vivien, P.J.Twin

Selective studies of the excited rotational bands in the superdeformed nucleus 151Tb

NUCLEAR REACTIONS 130Te(27Al, 6n), E=155 MeV; measured Eγ, Iγ, γγ-coin. 151Tb deduced unresolved superdeformed bands, decay-out features. Euroball IV array, comparison with band mixing model predictions.

doi: 10.1103/PhysRevC.75.047301
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2004BE21      Eur.Phys.J. A 20, 203 (2004)

F.A.Beck, I.Piqueras, E.Pachoud, G.Duchene, O.Dorvaux, P.Medina, C.Ring

An alternative gamma tracking method using the Compton scattering probability

doi: 10.1140/epja/i2002-10354-7
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2004PI02      Nucl.Instrum.Methods Phys.Res. A516, 122 (2004)

I.Piqueras, F.A.Beck, E.Pachoud, G.Duchene

A probabilistic γ-ray tracking method for germanium detectors

doi: 10.1016/j.nima.2003.07.063
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2004RE08      Eur.Phys.J. A 20, 31 (2004)

N.Redon, N.Buforn, R.Duffait, P.Lautesse, M.Meyer, A.Prevost, O.Stezowski, A.Astier, A.Bauchet, I.Deloncle, M.G.Porquet, J.Domscheit, A.Goergen, H.Hubel, E.Mergel, S.Neumann, D.Rossbach, N.Nenoff, G.Schoenwasser, A.N.Wilson, R.Lucas, F.A.Beck, P.Bednarczyk, D.Curien, G.Duchene, O.Dorvaux, B.J.P.Gall, N.Kintz, J.P.Vivien, D.M.Cullen

Superdeformed nuclear matter in nuclei with Z ≥ 82: Magnetic properties and neutron shell gap

NUCLEAR REACTIONS 186W(18O, 7n), (18O, 6n), E=117 MeV; measured Eγ, Iγ, γγ-coin. 197,198Pb deduced superdeformed bands, B(M1)/B(E2), configurations. Euroball IV array.

doi: 10.1140/epja/i2002-10314-3
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2002BY01      Phys.Rev. C65, 034324 (2002)

Th.Byrski, F.A.Beck, P.Bednarczyk, N.Kintz, K.Zuber, J.P.Vivien, S.Courtin, D.Curien, G.Duchene, C.Finck, B.Gall, A.Nourreddine, A.Odahara, O.Stezowski, C.Theisen

Enhanced Population of Superdeformation in the Mass A = 150 Region

NUCLEAR REACTIONS 124Sn(31P, 5np), (31P, 4np), (31P, 6n), (31P, 5n), E=167 MeV; measured Eγ, Iγ, γγ-coin. 149,150Tb, 149,150Gd deduced superdeformed band transitions, enhanced population mechanism. Euroball IV array.

doi: 10.1103/PhysRevC.65.034324
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2001NI13      Phys.Rev. C64, 034313 (2001)

N.Nica, G.Duchene, V.E.Iacob, J.Dudek, F.A.Beck, Th.Byrski, D.Curien, G.de France, B.Haas, B.Kharraja, D.Prevost, C.Petrache, H.Savajols, J.P.Vivien, L.Han, K.Zuber, M.Aiche, M.M.Aleonard, J.F.Chemin, C.W.Beausang, S.Clarke, P.J.Dagnall, M.Smith, P.J.Twin, J.Simpson, M.A.Bentley

High-Spin States in 155Er

NUCLEAR REACTIONS 123Sb(37Cl, 5n), E=193 MeV; measured Eγ, Iγ, γγ-coin, γ-ray polarization. 155Er deduced high-spin levels, J, π, δ, configurations, deformation. Eurogam II array. Tilted-Fermi-surface analysis.

doi: 10.1103/PhysRevC.64.034313
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2001PR06      Eur.Phys.J. A 10, 13 (2001)

A.Prevost, N.Buforn, A.Astier, R.Duffait, M.Meyer, S.Perries, N.Redon, O.Stezowski, A.Bauchet, I.Deloncle, M.G.Porquet, A.Gorgen, H.Hubel, E.Mergel, S.Neumann, D.Rossbach, N.Nenoff, G.Schonwasser, A.N.Wilson, R.Lucas, F.A.Beck, D.Curien, G.Duchene, B.J.P.Gall, N.Kintz, J.P.Vivien, D.M.Cullen

New Excited Superdeformed Bands in Heavy Pb Nuclei: Clue for an octupole softness near the N = 118 gap at large deformation

NUCLEAR REACTIONS 186W(18O, 6n), (18O, 7n), E=117 MeV; measured Eγ, Iγ, γγ-coin. 197,198Pb deduced superdeformed bands, configurations. Euroball IV array, cranked mean-field calculations.

doi: 10.1007/s100500170139
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2000BU28      Eur.Phys.J. A 9, 29 (2000)

N.Buforn, A.Astier, R.Duffait, M.Meyer, S.Perries, A.Prevost, N.Redon, O.Stezowski, A.Gorgen, H.Hubel, E.Mergel, S.Neumann, D.Rossbach, N.Nenoff, G.Schonwasser, A.Bauchet, I.Deloncle, M.G.Porquet, A.N.Wilson, R.Lucas, F.A.Beck, D.Curien, G.Duchene, B.J.P.Gall, N.Kintz, J.P.Vivien, D.M.Cullen

Magnetic Properties of the νj15/2 Intruder Orbital in the Superdeformed Minimum of 197Pb

NUCLEAR REACTIONS 186W(18O, 7n), E=117 MeV; measured Eγ, Iγ, γγ-coin. 197Pb deduced high-spin levels, superdeformed bands interband transitions, multipolarity, B(M1)/B(E2). Euroball IV array.

doi: 10.1007/s100500070052
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2000EL10      Nucl.Phys. A676, 155 (2000)

N.El Aouad, J.Dobaczewski, J.Dudek, X.Li, W.D.Luo, H.Molique, A.Bouguettoucha, Th.Byrski, F.A.Beck, D.Curien, G.Duchene, Ch.Finck, B.Kharraja

Microscopic Study of Superdeformed Rotational Bands in 151Tb

NUCLEAR STRUCTURE 150Gd, 151Tb, 152Dy; calculated proton and neutron Routhians, superdeformed bands configurations, levels, J, π, moments of inertia, quadrupole moments. Comparison with experimental results. Cranked Hartree-Fock and Woods-Saxon calculations with self-consistent pairing interaction.

doi: 10.1016/S0375-9474(00)00194-9
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2000SC43      Acta Phys.Hung.N.S. 12, 195 (2000)

J.N.Scheurer, M.Aiche, M.M.Aleonard, G.Barreau, D.Boivin, F.Bourgine, J.F.Chemin, T.P.Doan, A.Brondi, G.La Rana, R.Moro, A.Principe, E.Vardaci, D.Curien, G.Duchene, G.de France, F.A.Beck, B.Haas, J.P.Vivien, F.Hannachi

Feeding of ND and SD Bands in 151, 152Dy Nuclei

NUCLEAR REACTIONS 123Sb(37Cl, αX)150Dy/151Dy/152Dy/153Dy, E=191 MeV; measured Eα, αγ-, γγ-coin; deduced entry regions for normal-deformed, superdeformed bands. Euroball II, Diamant arrays.


2000SM03      Phys.Rev. C61, 034314 (2000)

M.B.Smith, D.E.Appelbe, P.J.Twin, C.W.Beausang, F.A.Beck, M.A.Bentley, D.M.Cullen, D.Curien, P.J.Dagnall, G.de France, G.Duchene, S.Erturk, Ch.Finck, B.Haas, I.M.Hibbert, J.C.Lisle, B.M.Nyako, C.D.O'Leary, C.Rigollet, H.Savajols, J.Simpson, O.Stezowski, J.Styczen, J.P.Vivien, K.Zuber

Deformed Rotational Cascades in 152Dy: Further evidence for shape coexistence at high spin

NUCLEAR REACTIONS 124Sn(34S, 6n), E=182 MeV; measured Eγ, Iγ, γγ-coin. 120Sn(36S, 4n), E=168 MeV; measured Eγ, Iγ, γγ-coin, DSA. 152Dy deduced high-spin levels, J, π, T1/2, quadrupole moments, configurations, shape coexistence. Eurogam array. Cranked mean-field calculations.

doi: 10.1103/PhysRevC.61.034314
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1999AI04      Eur.Phys.J. A 6, 121 (1999)

M.Aiche, M.M.Aleonard, G.Barreau, D.Boivin, F.Bourgine, J.F.Chemin, J.N.Scheurer, T.P.Doan, A.Brondi, G.La Rana, R.Moro, A.Principe, E.Vardaci, D.Curien, G.Duchene, G.de France, F.A.Beck, B.Haas, J.P.Vivien, F.Hannachi

Alpha Energy Distribution as a Probe for the Feeding of ND and SD Bands in 151, 152Dy Nuclei

NUCLEAR REACTIONS 123Sb(37Cl, 4nα), (37Cl, 5nα), E=191 MeV; measured Eγ, Iγ, Eα, γγ-, αγ-coin. 151,152Dy deduced superdeformed, normal-deformed bands associated α spectra, band-feeding features, transitions from possible hyperdeformed band. Eurogam II, Diamant arrays.

doi: 10.1007/s100500050326
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1999FI12      Phys.Lett. 467B, 15 (1999)

Ch.Finck, O.Stezowski, N.Kintz, J.P.Vivien, K.Zuber, A.Nourreddine, D.E.Appelbe, C.W.Beausang, F.A.Beck, T.Byrski, S.Courtin, D.Curien, G.de France, G.Duchene, S.Erturk, B.J.P.Gall, B.Haas, N.Khadiri, E.Pachoud, C.Rigollet, M.Smith, Ch.Theisen, P.J.Twin

First Evidence for Linking Transitions between the Superdeformed Yrast Band and the Normal Deformed States in 149Gd

NUCLEAR REACTIONS 124Sn(30Si, 5n), E=158 MeV; measured Eγ, Iγ, γγ-coin. 149Gd deduced high-spin levels, J, π, superdeformed band linking transitions. Eurogam II array.

doi: 10.1016/S0370-2693(99)01139-9
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1998BY02      Phys.Rev. C57, 1151 (1998)

Th.Byrski, O.Stezowski, K.Zuber, D.Appelbe, C.W.Beausang, F.A.Beck, A.Bouguettoucha, D.Curien, G.de France, G.Duchene, S.Erturk, C.Finck, B.Gall, B.Haas, A.Z.Kiss, N.Khadiri, B.Kharraja, A.Nourreddine, D.Prevost, H.Savajols, M.Smith, P.J.Twin, J.P.Vivien

Extended Spectroscopy in the Superdeformed Well of 148, 149Gd Nuclei

NUCLEAR REACTIONS 124Sn(30Si, 5n), (30Si, 6n), E=158 MeV; measured Eγ, Iγ, γγ-coin. 148,149Gd deduced high-spin levels J, π, superdeformed bands, configurations.

doi: 10.1103/PhysRevC.57.1151
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1998FI01      Eur.Phys.J. A 2, 123 (1998)

C.Finck, O.Stezowski, F.A.Beck, D.E.Appelbe, T.Byrski, S.Courtin, D.M.Cullen, D.Curien, G.de France, G.Duchene, S.Erturk, B.J.P.Gall, U.Garg, B.Haas, N.Khadiri, B.Kharraja, N.Kintz, A.Nourreddine, D.Prevost, C.Rigollet, H.Savajols, P.J.Twin, J.P.Vivien, K.Zuber

Quadrupole Moment of Superdeformed Bands in 151Tb

NUCLEAR REACTIONS 130Te(27Al, 6n), E=152 MeV; measured Eγ, Iγ, γγ-coin, DSA. 151Tb deduced superdeformed bands transitions T1/2, quadrupole moments, configuration.

doi: 10.1007/s100500050100
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1997AZ05      Acta Phys.Hung.N.S. 6, 289 (1997)

F.Azaiez, S.Bouneau, J.Duprat, I.Deloncle, M.-G.Porquet, U.J.van Severen, T.Nakatsukasa, M.M.Aleonard, A.Astier, G.Baldsiefen, C.W.Beausang, F.A.Beck, C.Bourgeois, D.Curien, N.Dozie, L.Ducroux, B.Gall, H.Hubel, M.Kaci, W.Korten, M.Meyer, N.Redon, H.Sergolle, J.F.Sharpey-Schafer

Octupole Vibrations of the Superdeformed 196Pb Nucleus

NUCLEAR REACTIONS 186W(16O, 6n), E=110 MeV; measured Eγ, Iγ, γγ-coin. 196Pb deduced superdeformed bands, possible octupole vibrations.


1997BO28      Z.Phys. A358, 179 (1997)

S.Bouneau, F.Azaiez, J.Duprat, I.Deloncle, M.-G.Porquet, U.J.van Severen, T.Nakatsukasa, M.-M.Aleonard, A.Astier, G.Baldsiefen, C.W.Beausang, F.A.Beck, C.Bourgeois, D.Curien, N.Dozie, L.Ducroux, B.J.P.Gall, H.Hubel, M.Kaci, W.Korten, M.Meyer, N.Redon, H.Sergolle, J.F.Sharpey-Schafer

New Results on the Superdeformed 196Pb Nucleus: Decay of the excited bands to the yrast band

NUCLEAR REACTIONS 186W(16O, 6n), E=110 MeV; measured Eγ, Iγ, γγγ-coin. 196Pb deduced superdeformed bands, dynamical moments of inertia. RPA model comparisons.

doi: 10.1007/s002180050299
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1997FI03      Acta Phys.Pol. B28, 161 (1997)

Ch.Finck, D.Appelbe, F.A.Beck, T.Byrski, D.Cullen, D.Curien, G.de France, G.Duchene, S.Erturk, B.Haas, N.Khadiri, B.Kharraja, D.Prevost, C.Rigollet, O.Stezowski, P.Twin, J.P.Vivien, K.Zuber

Deexcitation of Superdeformed Bands in the Nucleus 151Tb

NUCLEAR REACTIONS 130Te(27Al, 6n), E=155 MeV; measured γγ-coin. 151Tb deduced high-spin levels, J, π, superdeformed bands decay features.


1997KA34      Phys.Rev. C56, R600 (1997)

M.Kaci, E.Gueorguieva, M.G.Porquet, F.Azaiez, I.Deloncle, S.Bouneau, J.Duprat, M.M.Aleonard, A.Astier, G.Baldsiefen, C.W.Beausang, F.A.Beck, Ch.Bourgeois, D.Curien, N.Dozie, L.Ducroux, B.J.P.Gall, W.Korten, M.Meyer, N.Redon, D.Prevost, H.Sergolle, J.Sharpey-Schafer, U.J.van Severen

First Indication of Population of Superdeformed States by Incomplete Fusion Reactions

NUCLEAR REACTIONS, ICPND 186W(16O, X)195Pb/196Pb/197Pb/196Tl/197Tl/193Hg/194Hg/190Pt/186Os/188Os, E=110 MeV; measured residual production yield, Eγ, Iγ, γγ-coin; deduced recoil v/c, evidence for incomplete fusion process. 194Hg deduced superdeformed band. EUROGAM II.

doi: 10.1103/PhysRevC.56.R600
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1997ST17      Acta Phys.Pol. B28, 157 (1997)

O.Stezowski, F.A.Beck, Th.Byrski, D.Curien, G.de France, G.Duchene, Ch.Finck, B.Gall, B.Haas, N.Khadiri, B.Kharraja, D.Prevost, C.Rigollet, H.Savajols, J.P.Vivien, K.Zuber

Superdeformed Nuclei Produced in αxn Channel in the A ≈ 150 Mass Region

NUCLEAR REACTIONS 123Sb(37Cl, 4nα), 124Sn(34S, 6n), (34S, 5nα), (30Si, 5n), E not given; measured Eγ, Iγ, γγ-coin. 152Dy, 149Gd deduced superdeformed band feeding characteristics.


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 T1/2.

doi: 10.1103/PhysRevLett.76.4480
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1996TH06      Phys.Rev. C54, 2910 (1996)

Ch.Theisen, N.Khadiri, J.P.Vivien, I.Ragnarsson, C.W.Beausang, F.A.Beck, G.Belier, T.Byrski, D.Curien, G.de France, D.Disdier, G.Duchene, Ch.Finck, S.Flibotte, B.Gall, B.Haas, H.Hanine, B.Herskind, B.Kharraja, J.C.Merdinger, A.Nourreddine, B.M.Nyako, G.E.Perez, D.Prevost, O.Stezowski, V.Rauch, C.Rigollet, H.Savajols, J.Sharpey-Schafer, P.J.Twin, L.Wei, K.Zuber

Favored Neutron Excitations in Superdeformed 147Gd

NUCLEAR REACTIONS 122Sn(30Si, 5n), E=158 MeV; measured Eγ, Iγ, γγ-, high-fold-coin. 147Gd deduced high-spin levels, superdeformed bands, configurations, effective alignments. Nilsson-Strutinsky cranking model calculations. Compton suppressed Ge detectors EUROGAM array.

doi: 10.1103/PhysRevC.54.2910
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1995BE20      J.Phys.(London) G21, L21 (1995)

M.A.Bentley, C.W.Beausang, P.J.Twin, P.J.Dagnall, A.Atac, F.A.Beck, Th.Byrski, S.Clarke, D.M.Curien, G.Duchene, G.de France, P.D.Forsyth, B.Herskind, B.Haas, J.C.Lisle, B.M.Nyako, J.Nyberg, E.S.Paul, J.Simpson, J.Styczen, J.P.Vivien, K.Zuber

Search for Linking Transitions between the Superdeformed and Normal Deformed States in 152Dy

NUCLEAR REACTIONS 108Pd(48Ca, 4n), E=200 MeV; measured γγγ-coin, Eγ, Iγ. 152Dy deduced superdeformed, normal deformed high-spin states linking transitions evidence.

doi: 10.1088/0954-3899/21/4/001
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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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1995KH06      Phys.Lett. 341B, 268 (1995)

B.Kharraja, T.Byrski, F.A.Beck, C.W.Beausang, M.A.Bentley, D.Curien, P.J.Dagnall, G.Duchene, S.Flibotte, G.de France, Zs.Fulop, B.Haas, A.Z.Kiss, J.C.Lisle, C.M.Petrache, Ch.Theisen, P.J.Twin, J.P.Vivien, K.Zuber

Unfavoured Signature Partner Superdeformed Bands Associated with Proton Excitations in 151Tb

NUCLEAR REACTIONS 130Te(27Al, X), E=154 MeV; measured Eγ, multiplicities. 151Tb deduced high-spin superdeformed bands, configurations. Self-consistent relativistic Hartree-Fock model comparison.

doi: 10.1016/0370-2693(94)01345-D
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1995PE16      Phys.Scr. T56, 299 (1995)

C.M.Petrache, G.Duchene, C.W.Beausang, F.A.Beck, T.Byrski, D.Curien, P.J.Dagnall, S.Flibotte, P.D.Forsyth, G.de France, B.Haas, B.Kharraja, A.Kiss, J.C.Merdinger, D.Prevost, C.Schuck, C.Theisen, P.J.Twin, J.P.Vivien

Decay Out of Superdeformed Bands in Tb Isotopes

NUCLEAR REACTIONS 130Te(27Al, xn), E=154 MeV; measured Eγ, Iγ, γγ-coin. 152Tb deduced high-spin levels, J, π. 150,151Tb deduced high-spin levels, J, π, superdeformed band decay features.

doi: 10.1088/0031-8949/1995/T56/054
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1994DA20      Phys.Lett. 335B, 313 (1994)

P.J.Dagnall, C.W.Beausang, P.J.Twin, M.A.Bentley, F.A.Beck, Th.Byrski, S.Clarke, D.Curien, G.Duchene, G.de France, P.D.Forsyth, B.Haas, J.C.Lisle, E.S.Paul, J.Simpson, J.Styczen, J.P.Vivien, J.N.Wilson, K.Zuber

Excited Bands in the Doubly-Magic Superdeformed 152Dy Nucleus: Evidence for the first N = 7 proton hyper-intruder orbital

NUCLEAR REACTIONS 108Pd(48Ca, 4n), E=200 MeV; measured γγ-coin, Eγ, Iγ. 152Dy deduced high-spin levels, J, π, superdeformed bands, configurations.

doi: 10.1016/0370-2693(94)90356-5
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1994DE33      Phys.Lett. 331B, 290 (1994)

G.de France, B.Haas, I.Ragnarsson, P.J.Twin, C.W.Beausang, F.A.Beck, T.Byrski, S.Clarke, D.Curien, P.J.Dagnall, G.Duchene, P.Fallon, S.Flibotte, S.Forbes, P.D.Forsyth, B.Kharraja, J.C.Lisle, J.C.Merdinger, C.M.Petrache, D.Prevost, J.F.Sharpey-Schafer, J.Simpson, J.P.Vivien, K.Zuber

Neutron Excitations Across the N = 86 Superdeformed Shell Gap

NUCLEAR STRUCTURE 149Gd, 152,151Tb, 152Dy; analyzed Eγ data; deduced superdeformed high-spin bands features.

doi: 10.1016/0370-2693(94)91054-5
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1994DU13      Z.Phys. A350, 39 (1994)

G.Duchene, C.M.Petrache, C.W.Beausang, F.A.Beck, T.Byrski, D.Curien, P.J.Dagnall, S.Flibotte, P.D.Forsyth, G.de France, B.Haas, B.Kharraja, J.C.Merdinger, D.Prevost, C.Schuck, C.Theisen, P.J.Twin, J.P.Vivien

High Spin States in the Nucleus 150Tb

NUCLEAR REACTIONS 130Te(27Al, 7n), E=154 MeV; measured γγ-coin. 150Tb deduced high-spin levels, J, π, configurations, yrast superdeformed band decay features. Deformed independent particle model.


1994FA13      Phys.Rev.Lett. 73, 782 (1994)

P.Fallon, C.W.Beausang, S.Clarke, P.J.Twin, F.A.Beck, Th.Byrski, D.Curien, P.J.Dagnall, G.de France, G.Duchene, P.D.Forsyth, B.Haas, M.J.Joyce, A.O.Macchiavelli, E.S.Paul, J.F.Sharpey-Schafer, J.Simpson, J.P.Vivien, S.Aberg, W.Nazarewicz

Pair Excitaions and a Proton Band Crossing in Superdeformed 150Gd

NUCLEAR REACTIONS 130Te(26Mg, 6n), E=149 MeV; measured γγ-coin. 150Gd deduced superdeformed high-spin band, configuration, dynamic moments of inertia, relative Iγ.

doi: 10.1103/PhysRevLett.73.782
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1994ME12      Nucl.Phys. A575, 221 (1994)

Z.Meliani, J.S.Dionisio, C.Schuck, Ch.Vieu, F.A.Beck, T.Byrski, D.Curien, G.Duchene, J.C.Merdinger, P.Fallon, J.W.Roberts, J.F.Sharpey-Schafer

The High-Spin States of 149Tb

NUCLEAR REACTIONS 122Sn(31P, 4n), E=140, 150 MeV; measured Eγ, Iγ, γγ-coin, DCO ratios. 149Tb deduced high-spin levels, J, π, γ-multipolarity, ICC, T1/2. Isotopically enriched targets, Compton suppressed Ge detector array, BaF2 ball, eγ spectrometer. Deformed independent particle model calculations.

doi: 10.1016/0375-9474(94)90146-5
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1994PE17      Nucl.Phys. A579, 285 (1994)

C.M.Petrache, G.Duchene, B.Kharraja, C.W.Beausang, F.A.Beck, T.Byrski, D.Curien, P.Dagnall, S.Flibotte, P.D.Forsyth, G.de France, B.Haas, A.Kiss, J.C.Merdinger, D.Prevost, C.Schuck, C.Theisen, P.J.Twin, J.P.Vivien

Detailed Level Scheme of 151Tb and the Feeding of the Normal-Deformed States by the Superdeformed Bands

NUCLEAR REACTIONS 130Te(27Al, 6n), E=154 MeV; measured Eγ, Iγ, γγ-coin, γ(θ). 151Tb deduced high-spin levels, J, π, configurations, band structure, deformations, decay out of superdeformed bands. Enriched targets, Compton-suppressed hyperpure Ge detector array EUROGAM. Deformed independent particle model calculations.

doi: 10.1016/0375-9474(94)90807-9
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1993BE29      Nucl.Phys. A557, 67c (1993)

F.A.Beck, Th.Byrski, D.Curien, G.Duchene, S.Flibotte, G.de France, B.Haas, B.Kharraja, J.C.Merdinger, C.Theisen, J.P.Vivien, J.C.Lisle, C.W.Beausang, P.Dagnall, P.Fallon, J.Simpson, P.Twin, F.Hannachi, C.Schuck, Z.Fulop, M.Jozsa, A.Kiss, B.M.Nyako, C.M.Petrache

The First Results from EUROGAM: Superdeformed structures in 151Tb

NUCLEAR REACTIONS 124Sn(31P, 4n), E=145 MeV; 130Te(27Al, 6n), E=150 MeV; measured γγ-coin. 151Tb deduced superdeformed bands.

doi: 10.1016/0375-9474(93)90531-2
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1993BE37      Phys.Rev.Lett. 71, 1800 (1993)

C.W.Beausang, P.Fallon, S.Clarke, F.A.Beck, Th.Byrski, D.Curien, P.J.Dagnall, G.de France, G.Duchene, P.D.Forsyth, B.Haas, M.J.Joyce, A.O.Macchiavelli, E.S.Paul, J.F.Sharpey-Schafer, J.Simpson, P.J.Twin, J.P.Vivien

Degnerate Superdeformed States in 150Gd

NUCLEAR REACTIONS 130Te(26Mg, 6n), E=149 MeV; measured γγγ-coin. 150Gd deduced levels, J, π, superdeformed state degeneracy features.

doi: 10.1103/PhysRevLett.71.1800
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1993CU06      Phys.Rev.Lett. 71, 2559 (1993)

D.Curien, G.de France, C.W.Beausang, F.A.Beck, T.Byrski, S.Clark, P.Dagnall, G.Duchene, S.Flibotte, S.Forbes, P.D.Forsyth, B.Haas, M.A.Joyce, B.Kharraja, B.M.Nyako, C.Schuck, J.Simpson, C.Theisen, P.J.Twin, J.P.Vivien, L.Zolnai

Deexcitation from Superdeformed Bands in 151Tb and Neighboring A ≈ 150 Nuclei

NUCLEAR REACTIONS 130Te(27Al, 6n), E=154 MeV; measured Eγ, Iγ, γγγ-coin. 151Tb deduced superdeformed band transition energies, relative Iγ, decay mechanism features.

doi: 10.1103/PhysRevLett.71.2559
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1993DU04      Phys.Rev. C47, 2043 (1993)

G.Duchene, P.Romain, F.A.Beck, Ph.Benet, D.Disdier, B.Haas, B.Lott, V.Rauch, F.Scheibling, J.P.Vivien, S.K.Basu, E.Bozek, K.Zuber, D.Di Gregorio, J.Fernandez-Niello

Angular Momentum Distributions for 16O + 144Nd

NUCLEAR REACTIONS, ICPND 144Nd(16O, X), E=67-90 MeV; measured fusion σ(E), γ-multiplicity. Model comparison. Off-line residual X-ray emission detection.

doi: 10.1103/PhysRevC.47.2043
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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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1992BE09      Nucl.Instrum.Methods Phys.Res. A313, 37 (1992)

C.W.Beausang, S.A.Forbes, P.Fallon, P.J.Nolan, P.J.Twin, J.N.Mo, J.C.Lisle, M.A.Bentley, J.Simpson, F.A.Beck, D.Curien, G.de France, G.Duchene, D.Popescu

Measurements on Prototype Ge and BGO Detectors for the Eurogam Array

RADIOACTIVITY 60Co(β-); 207Bi(EC), (β+); measured unsuppressed γ-spectra. Prototype Ge, bismuth-germanate detectors.

NUCLEAR REACTIONS 100Mo(34S, X), E=132 MeV; measured unsuppressed γ-spectra. Prototype Ge, bismuth-germanate detectors.

doi: 10.1016/0168-9002(92)90084-H
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1992PO01      J.Phys.(London) G18, L29 (1992)

M.G.Porquet, G.Bastin, C.Bourgeois, A.Korichi, N.Perrin, H.Sergolle, F.A.Beck

High-Spin Study of 186Hg

NUCLEAR REACTIONS 162Dy(28Si, 4n), E=135-150 MeV; measured Eγ, Iγ, γγ-coin. 186Hg deduced levels, J, π, band structure.

doi: 10.1088/0954-3899/18/2/003
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1991PO15      Phys.Rev. C44, 2445 (1991)

M.-G.Porquet, A.J.Kreiner, F.Hannachi, V.Vanin, G.Bastin, C.Bourgeois, J.Davidson, M.Debray, G.Falcone, A.Korichi, H.Mosca, N.Perrin, H.Sergolle, F.A.Beck, J.-C.Merdinger

High-Spin Structure of 189Tl: Role of h9/2 Protons in the Minimum of Light Hg Isotopes

NUCLEAR REACTIONS 165Ho(28Si, 4n), E=130-145 MeV; measured γγ-coin, γ(θ), γ polarization, DCO ratios. 189Tl deduced levels, γ-multipolarity, J, π, band structure, shape features.

doi: 10.1103/PhysRevC.44.2445
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Data from this article have been entered in the XUNDL database. For more information, click here.


1991ZU01      Phys.Lett. 254B, 308 (1991)

K.Zuber, D.Balouka, F.A.Beck, Th.Byrski, D.Curien, G.De France, G.Duchene, C.Gehringer, B.Haas, J.C.Merdinger, P.Romain, D.Santos, J.Styczen, J.P.Vivien, J.Dudek, Z.Szymanski, T.R.Werner

A Comparative Study of Superdeformation in 146,147,148Gd. Possible Manifestations of the Pseudo-SU3 Symmetry, Octupole Shape Susceptibility and Superdeformed Deep-Hole Excitations

NUCLEAR REACTIONS 122Sn(30Si, 5n), E=155 MeV; measured Eγ, Iγ, sum spectra. 147Gd deduced levels, J, π, superdeformed band features. Model comparison.

doi: 10.1016/0370-2693(91)91160-W
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1990BY01      Phys.Rev.Lett. 64, 1650 (1990)

T.Byrski, F.A.Beck, D.Curien, C.Schuck, P.Fallon, A.Alderson, I.Ali, M.A.Bentley, A.M.Bruce, P.D.Forsyth, D.Howe, J.W.Roberts, J.F.Sharpey-Schafer, G.Smith, P.J.Twin

Observation of Identical Superdeformed Bands in N = 86 Nuclei

NUCLEAR REACTIONS 130Te(26Mg, 6n), E=145 MeV; 130Te(27Al, 6n), E=150 MeV; measured γγ-coin, sum spectra. 150Gd, 151Tb deduced levels, J, π, superdeformed band structure.

doi: 10.1103/PhysRevLett.64.1650
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1990HA25      Phys.Lett. 245B, 13 (1990)

B.Haas, J.P.Vivien, S.K.Basu, F.A.Beck, Ph.Benet, T.Byrski, D.Curien, G.Duchene, C.Gehringer, H.Kluge, J.C.Merdinger, P.Romain, D.Santos, S.Flibotte, J.Gascon, P.Taras, E.Bozek, K.Zuber

Feeding of the Superdeformed Yrast Band in 149Gd

NUCLEAR REACTIONS 124Sn(30Si, 5n), E=150-160 MeV; measured γ-spectra. 149Gd deduced superdeformed yrast band relative Iγ.

doi: 10.1016/0370-2693(90)90156-Z
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1990ZU02      Nucl.Phys. A520, 195c (1990)

K.Zuber, D.Balouka, F.A.Beck, Th.Byrski, D.Curien, G.Duchene, C.Gehringer, B.Haas, J.C.Merdinger, P.Romain, D.Santos, J.Styczen, J.P.Vivien, J.Dudek, Z.Szymanski, T.Werner

Superdeformed Bands in 14764Gd83, a Possible Test of the Existence of Octupole Correlations in Superdeformed Bands

NUCLEAR REACTIONS 122Sn(30Si, 5n), E=155 MeV; measured Eγ, Iγ. 147Gd deduced levels, superdeformed band structure.

doi: 10.1016/0375-9474(90)91147-J
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1989FA02      Phys.Lett. 218B, 137 (1989)

P.Fallon, P.Alderson, M.A.Bentley, A.M.Bruce, P.D.Forsyth, D.Howe, J.W.Roberts, J.F.Sharpey-Schafer, P.J.Twin, F.A.Beck, T.Byrski, D.Curien, C.Schuck

Superdeformed Bands in 150Gd and 151Tb: Evidence for the influence of high-N intruder states at large deformations

NUCLEAR REACTIONS 130Te(26Mg, 6n), E=145 MeV; 130Te(27Al, 6n), E=150 MeV; measured γγ-coin, γγ(θ). 150Gd, 151Tb deduced levels, J, π, superdeformed band structure, shapes, moments of inertia.

doi: 10.1016/0370-2693(89)91408-1
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1989KR06      Phys.Rev. C40, R487 (1989)

A.J.Kreiner, V.R.Vanin, F.A.Beck, Ch.Bourgeois, Th.Byrski, D.Curien, G.Duchene, B.Haas, J.C.Merdinger, M.G.Porquet, P.Romain, S.Rouabah, D.Santos, J.P.Vivien

Double Blocking in Doubly Odd Deformed Nuclei: The case of 178Re

NUCLEAR REACTIONS 165Ho(18O, 5n), E=98 MeV; measured γγ-coin. 178Re deduced levels, J, π, band structure, dynamical moments of inertia, configurations. Double blocking technique.

doi: 10.1103/PhysRevC.40.R487
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1989NY01      Z.Phys. A332, 235 (1989)

B.M.Nyako, J.Gizon, D.Barneoud, A.Gizon, M.Jozsa, W.Klamra, F.A.Beck, J.C.Merdinger

Observation of Band Structures in the Odd-Odd Nucleus 126La

NUCLEAR REACTIONS 111Cd(19F, 4n), E=90 MeV; 93Nb(37Cl, 3np), E=155 MeV; measured γγ-, γ(X-ray)-coin. 126La deduced levels, J, π, band structure, configuration.


1989ZU01      Z.Phys. A332, 231 (1989)

K.Zuber, E.Bozek, F.A.Beck, P.Benet, T.Byrski, D.Curien, G.Duchene, C.Gehringer, B.Haas, A.Kreiner, J.C.Merdinger, P.Romain, J.P.Vivien

Non-Yrast States in 152Dy Around 22(h-bar), the Region into which the Discrete Superdeformed Band Drains

NUCLEAR REACTIONS 124Sn(32S, 4n), E=132 MeV; measured γγ-coin. 152Dy deduced levels, J, π, superdeformed band drainage.


1988HA15      Nucl.Phys. A481, 135 (1988)

F.Hannachi, G.Bastin, M.G.Porquet, C.Schuck, J.P.Thibaud, C.Bourgeois, L.Hildingsson, D.Jerrestam, N.Perrin, H.Sergolle, F.A.Beck, T.Byrski, J.C.Merdinger, J.Dudek

High-Spin Excitations of 187,188Hg

NUCLEAR REACTIONS 163,164Dy(28Si, xn), E=135-155 MeV; measured E(γ), I(γ), γγ-coin, γ(θ), linear polarization. 187,188Hg deduced levels, J, π. Enriched targets, Compton-suppressed Ge detectors, 4π-multidetector array. Cranking model, independent quasiparticle method, shell effects, Strutinsky approach.

doi: 10.1016/0375-9474(88)90477-0
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1988HA19      Z.Phys. A330, 15 (1988)

F.Hannachi, G.Bastin, M.G.Porquet, J.P.Thibaud, C.Bourgeois, L.Hildingsson, N.Perrin, H.Sergolle, F.A.Beck, J.C.Merdinger

Collective Structures in 185Hg

NUCLEAR REACTIONS 161Dy(28Si, xnypzα), E ≈ 135-160 MeV; measured σ(E). 161Dy(28Si, 4n), E=145 MeV; measured γγ-coin, γ(θ), linear polarization. 185Hg deduced levels, γ-branching, γ-multipolarity, band structure, Nilsson assignments, shape features, B(λ).


1988MA49      Nucl.Phys. A489, 169 (1988)

J.P.Martin, V.Barci, H.El-Samman, A.Gizon, J.Gizon, W.Klamra, B.M.Nyako, F.A.Beck, Th.Byrski, J.C.Merdinger

Collective Band Structures and Particle Alignments in 124Ba, 125Ba and 125Cs

NUCLEAR REACTIONS 110Cd(18O, X), E=80 MeV; 96Zr(34S, X), E=160 MeV; measured E(γ), I(γ), γγ-coin, linear polarization. 124,125Ba, 125Cs deduced levels, J, π, routhians, γ-multipolarity, alignment. Enriched targets, Ge detectors, anti-Compton shields.

doi: 10.1016/0375-9474(88)90059-0
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1987BE21      Phys.Lett. 192B, 49 (1987)

F.A.Beck, T.Byrski, S.Rouabah, D.Curien, N.Bendjaballah, C.Costa, C.Gehringer, B.Haas, J.C.Merdinger, J.P.Vivien, G.Bastin, C.Schuck, D.Frekers, R.V.F.Janssens, T.L.Khoo, W.Kuhn, J.Dudek, F.Menas, W.Nazarewicz

Shape Coexistence, Evolution and the Parallel Proton-Neutron Core Breaking in 68155Er87 Studied with the Help of the BaF2 4π-Detection System

NUCLEAR REACTIONS 125Te(34S, 4n), E=150-170 MeV; measured σ(E), Eγ, Iγ, γγ-coin, γ(θ). 155Er deduced levels, J, π, γ-multipolarity, shape characteristics. Sum spectrometer, Compton-suppressed Ge detectors.

doi: 10.1016/0370-2693(87)91140-3
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1987BY04      Nucl.Phys. A474, 193 (1987)

T.Byrski, F.A.Beck, J.C.Merdinger, A.Nourreddine, H.W.Cranmer-Gordon, D.V.Elenkov, P.D.Forsyth, D.Howe, M.A.Riley, J.F.Sharpey-Schafer, J.Simpson, J.Dudek, W.Nazarewicz

Search for Correlations between Prolate-Shape Collective and Oblate-Shape Non-Collective Nuclear Rotation: High-spin states in 159,160Yb

NUCLEAR REACTIONS 120Sn(44Ca, 4n), (44Ca, 5n), E=210 MeV; measured γγ-coin, total energy γ spectra, Iγ(θ). 159,160Yb deduced levels, J, π, yrast bands. Bismuth germinate crystal ball. Model comparison.

NUCLEAR STRUCTURE 159,160Yb; calculated levels, rotational band angular momentum alignments.

doi: 10.1016/0375-9474(87)90200-4
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1987MA12      Z.Phys. A326, 337 (1987)

J.P.Martin, V.Barci, H.El-Samman, A.Gizon, J.Gizon, B.Nyako, W.Klamra, F.A.Beck, T.Byrski, J.C.Merdinger

The Band Structure in 124Ba

NUCLEAR REACTIONS 96Zr(34S, 6n), E=140, 150, 160, 175 MeV; measured Eγ, Iγ, γ(θ), γγ-coin. 124Ba deduced levels, J, π, yrast band, Routhians, rotational frequencies. Enriched target, Compton suppressed Ge detectors. Cranked shell model.


1987NO06      Phys.Rev. C36, 2687 (1987)

A.Nourreddine, J.P.Vivien, F.A.Beck, T.Byrski, G.Duchene, C.Gehringer, B.Haas, J.C.Merdinger, J.Gascon, P.Taras

Simultaneous Population of Large and Small Deformation Bands at very High Spin in 152Dy

NUCLEAR REACTIONS 74Ge(80Se, 2n), E=285 MeV; 76Ge(80Se, 4n), E=320 MeV; measured DSA, Eγ, Iγ. 152Dy deduced levels, T1/2, high spin continuum states average quadrupole moment.

doi: 10.1103/PhysRevC.36.2687
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1987RO21      Z.Phys. A328, 493 (1987)

M.S.Rouabah, Th.Byrski, F.A.Beck, D.Curien, B.Haas, J.C.Merdinger, J.P.Vivien, J.Gizon, B.Nyako

High Spin Bands in 120Xe

NUCLEAR REACTIONS 106Cd(18O, 4n), E=90 MeV; measured Eγ, Iγ, γ yield vs E, γγ-coin. 120Xe deduced levels, J, π, γ-branching, band structure.


1986HA42      Z.Phys. A325, 371 (1986)

F.Hannachi, G.Bastin, M.G.Porquet, C.Schuck, J.P.Thibaud, C.Bourgeois, L.Hildingsson, D.Jerrestam, N.Perrin, H.Sergolle, F.A.Beck, T.Byrski, J.C.Merdinger

Shape Coexistence in 187Hg

NUCLEAR REACTIONS 164Dy(28Si, 5n), E=135-155 MeV; measured γγ-coin, σ(Eγ, E). 187Hg deduced levels, J, π, band structure, γ-branching, inter-, intraband transitions, shape coexistence. Enriched target.


1986TO09      Z.Phys. A325, 85 (1986)

S.Tobbeche, J.Barrette, B.Haas, F.A.Beck, T.Byrski, G.Duchene, C.Gehringer, J.C.Merdinger, A.Nourreddine, J.P.Vivien

Influence of the Giant Dipole Resonance in the Statistical Decay of the Compound Nucleus 160Er

NUCLEAR REACTIONS, ICPND 144Nd(16O, 2n), (16O, 3n), (16O, 4n), (16O, 5n), (16O, 6n), E=76-105 MeV; measured residual production σ(E), γ-spectra. 160Er deduced GDR role in statistical decay. NaI, Ge(Li) detectors, TOF. Statistical model calculations.

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1581.


1986VI05      Phys.Rev. C33, 2007 (1986)

J.P.Vivien, A.Nourreddine, F.A.Beck, T.Byrski, C.Gehringer, B.Haas, J.C.Merdinger, D.C.Radford, Y.Schutz, J.Dudek, W.Nazarewicz

Search for Superdeformation Effects in 144Gd

NUCLEAR STRUCTURE 144Gd; calculated Routhians, superdeformed configuration temperature, pairing effects. Cranking model, Woods-Saxon fields.

NUCLEAR REACTIONS 120Sn(28Si, 4n), E=125, 135, 145, 155 MeV; measured γ-spectra, γ(θ), multiplicity distribution, anisotropy. 144Gd level deduced isomer T1/2, superdeformation effects.

doi: 10.1103/PhysRevC.33.2007
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1985AZ01      Z.Phys. A320, 699 (1985)

F.Azgui, H.Emling, W.Spreng, H.J.Wollersheim, R.Kulessa, T.Byrski, F.A.Beck, G.J.Costa, J.Dudek, B.Haas, C.Gehringer, J.C.Merdinger, R.Seltz, J.P.Vivien, W.Nazarewicz

Long-Lived High Spin States in 156Er: Signature for prolate-to-oblate shape transition

NUCLEAR REACTIONS 123Sb(37Cl, 4n), E=158-160 MeV; measured γ spectra, recoil. 156Er deduced levels, J, π, T1/2, configurations.

doi: 10.1007/BF01411877
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1985HA03      Phys.Rev.Lett. 54, 398 (1985)

B.Haas, G.Duchene, F.A.Beck, T.Byrski, C.Gehringer, J.C.Merdinger, A.Nourredine, V.Rauch, J.P.Vivien, J.Barrette, S.Tobbeche, E.Bozek, J.Styczen, J.Keinonen, J.Dudek, W.Nazarewicz

Strong Angular Momentum Effects in Near-Barrier Fusion Reactions

NUCLEAR REACTIONS 144Nd(16O, xn), 123Sb(37Cl, xn), 96Zr(64Ni, xn), 80Se(80Se, xn), E=tandem; measured σ for x=2-5, evaporation residue σ, average γ-multiplicities. 160Er deduced near barrier angular momentum transfer entrance channel dependence. Ground state zero-point vibrations.

doi: 10.1103/PhysRevLett.54.398
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1581.


1984BE49      Z.Phys. A319, 119 (1984)

F.A.Beck, J.Dudek, B.Haas, J.C.Merdinger, A.Nourreddine, Y.Schutz, J.P.Vivien, Ph.Hubert, D.Dassie, G.Bastin, L.Nguyen, J.P.Thibaud, W.Nazarewicz

High-Spin Structure in 154Er

NUCLEAR REACTIONS 123Sb(35Cl, 4n), E=160 MeV; measured γγ-coin, γ(θ), linear polarization, relative γ yields. 154Er deduced levels, J, π, γ-multipolarity, configuration. Cranking model.

doi: 10.1007/BF01415624
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1983HA02      Phys.Lett. 120B, 79 (1983)

B.Haas, D.C.Radford, F.A.Beck, T.Byrski, C.Gehringer, J.C.Merdinger, A.Nourredine, Y.Schutz, J.P.Vivien

γ Rays in the 2-18 MeV Range from the Reaction 120Sn(28Si, 4n)144Gd

NUCLEAR REACTIONS 120Sn(28Si, 4n), E=145 MeV; measured continuum Eγ, Iγ(θ), γ-multiplicity. 144Gd deduced high spin GDR decay.

doi: 10.1016/0370-2693(83)90627-5
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1983HA15      Z.Phys. A312, 251 (1983)

K.Hardt, Y.K.Agarwal, C.Gunther, M.Guttormsen, R.Kroth, J.Recht, F.A.Beck, T.Byrski, J.C.Merdinger, A.Nourredine, D.C.Radford, J.P.Vivien, C.Bourgeois

Observation of the Weakly Deformed νi213/2 Band in 188Hg

NUCLEAR REACTIONS 168Er(24Mg, 4n), E=125 MeV; measured Eγ, Iγ, γγ-coin. 188Hg deduced levels, J, π, rotation aligned band structure, isomer T1/2, γ-branching, B(E2), configuration.

doi: 10.1007/BF01412168
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1983RA19      Phys.Lett. 126B, 24 (1983)

D.C.Radford, M.S.Rosenthal, P.D.Parker, J.A.Cizewski, J.H.Thomas, B.Haas, F.A.Beck, T.Byrski, J.C.Merdinger, A.Nourredine, Y.Schutz, J.P.Vivien, J.S.Dionisio, Ch.Vieu

Very High Spin States and Isomerism in 153Ho

NUCLEAR REACTIONS Pr(16O, xn), E=80-100 MeV; 122Sn(35Cl, xn), E=145-165 MeV; measured γ(θ), σ(Eγ, E), γγ-coin, (ce)(ce)(t). 153Ho deduced levels, J, π, T1/2, γ-branching, K-shell ICC, γ-multipolarity, B(E2), configurations.

doi: 10.1016/0370-2693(83)90008-4
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1983TR01      Phys.Rev. C27, 166 (1983)

J.Treherne, J.Genevey, S.Andre, R.Beraud, A.Charvet, R.Duffait, A.Emsallem, M.Meyer, C.Bourgeois, P.Kilcher, J.Sauvage, F.A.Beck, T.Byrski

Band Structure and Coupling Modes in Doubly-Odd Transitional 104-102Ag

NUCLEAR REACTIONS, ICPND 94Mo(12C, np), E=41-57 MeV; 92Mo(12C, np), E=50 MeV; 89Y(16O, 3n), E=60-80 MeV; 92Mo(14N, 2n2p), E=72 MeV; measured Iγ, I(ce), Iγ(θ), γγ-coin, γ(t), linear polarization, relative Iγ vs E, γ yield. 104,102Ag deduced levels, J, π, ICC, γ-multipolarity, δ, T1/2, band structure. Enriched Mo targets, Ge(Li) detectors, intrinsic Ge Compton polarimeter, electron orange spectrometer. Axial rotor plus two-quasiparticle model.

doi: 10.1103/PhysRevC.27.166
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1982SC07      Phys.Rev.Lett. 48, 1534 (1982)

Y.Schutz, J.P.Vivien, F.A.Beck, T.Byrski, C.Gehringer, J.C.Merdinger, J.Dudek, W.Nazarewicz, Z.Szymanski

Search for Collective Effects in Very High Spin States of 152Dy

NUCLEAR REACTIONS 123Sn(32S, xn), E=160 MeV; measured γγ(θ) ratio, γγ(E). 152Dy deduced high spin collective effects, superdeformed configuration parameters, moments of inertia. Rotating Woods-Saxon potential.

doi: 10.1103/PhysRevLett.48.1534
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1981BO08      Z.Phys. A299, 85 (1981)

C.Bourgeois, A.Zerrouki, M.G.Desthuilliers-Porquet, F.A.Beck, T.Byrski

High-Spin States in 189Hg

NUCLEAR REACTIONS 175Lu(19F, 5n), E=100 MeV; measured σ(E, Eγ), σ(Eγ, θ), γγ-coin, γγ(θ), oriented nuclei, linear polarization, γ(θ). 189Hg deduced levels, J, π, δ, γ-multipolarity, rotational band. Triaxial-rotor plus particle model. Ge(Li), hyperpure Ge detectors.

doi: 10.1007/BF01415746
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1981BY02      Phys.Lett. 102B, 235 (1981)

T.Byrski, F.A.Beck, C.Gehringer, J.C.Merdinger, Y.Schutz, J.P.Vivien, J.Dudek, W.Nazarewicz, Z.Szymanski

Second Backbending in the Yrast Line of 156Er

NUCLEAR REACTIONS 141Pr(19F, 4n), E=95 MeV; 123Sb(37Cl, 4n), E=170 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ), oriented nuclei. 156Er deduced levels, J, π, backbending, band crossing effects. Cranked HFB calculation.

doi: 10.1016/0370-2693(81)90865-0
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1980BY02      J.Phys.(Paris), Colloq.C-10, 98 (1980)

T.Byrski, F.A.Beck, C.Gehringer, J.C.Merdinger, Y.Schutz, J.P.Vivien

Irregularities in the Yrast Line of 156Er

NUCLEAR REACTIONS 141Pr(19F, 4n), E=95 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ), oriented nuclei. 153Er deduced decay of yrast band, backbending. Ge(Li) detectors.


1980ME11      Nucl.Phys. A346, 281 (1980)

J.C.Merdinger, F.A.Beck, E.Bozek, T.Byrski, C.Gehringer, Y.Schutz, J.P.Vivien

Magnetic Moments of the I(π) = 10+ Isomers in Ce and Nd N = 80 Isotones

NUCLEAR REACTIONS 130Te(12C, 4n), E=60 MeV; 128Te(16O, 4n), E=70 MeV; measured Iγ(θ, H, t). 138Ce, 140Nd levels deduced g. Time differential perturbed angular distribution method, enriched targets.

doi: 10.1016/0375-9474(80)90501-1
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1980TR05      Nucl.Phys. A342, 357 (1980)

J.Treherne, J.Genevey, R.Beraud, A.Charvet, R.Duffait, M.Meyer, F.A.Beck, T.Byrski

Collective Excitation of 103Ag Following the (12C, p2nγ) Reaction

NUCLEAR REACTIONS 94Mo(12C, 2np), E=44-65 MeV; measured Eγ, Iγ, γ(θ), linear polarization, 12Cγ(t), γγ(t), γ(K X-ray)-coin. 103Ag deduced levels, J, π. Ge(Li) detectors.

doi: 10.1016/0375-9474(80)90260-2
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1980VI06      J.Phys.(Paris), Colloq.C-10, 135 (1980)

J.P.Vivien, Y.Schutz, F.A.Beck, T.Byrski, C.Gehringer, J.C.Merdinger

Gamma-Ray Transition Energy Correlations in 156Er and 160Yb

NUCLEAR REACTIONS 148Sm(16O, 4n), E=105 MeV; 141Pr(19F, 4n), E=100 MeV; measured γγ-coin, energy correlation. 156Er, 160Yb deduced moment of inertia, single particle aligned angular momentum.


1979BE02      Phys.Rev.Lett. 42, 493 (1979)

F.A.Beck, E.Bozek, T.Byrski, C.Gehringer, J.C.Merdinger, Y.Schutz, J.Styczen, J.P.Vivien

Second Irregularity in the Yrast Line of 160Yb

NUCLEAR REACTIONS 148Sm(16O, 4nγ), E=95, 105 MeV; measured Eγ, Iγ, γ(θ), γγ-coin, γγ(θ), oriented nuclei. 160Yb deduced yrast states, second backbend.

doi: 10.1103/PhysRevLett.42.493
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1979ME01      Phys.Rev.Lett. 42, 23 (1979)

J.C.Merdinger, F.A.Beck, T.Byrski, C.Gehringer, J.P.Vivien, E.Bozek, J.Styczen

Yrast Isomers and Possible Oblate Shape in 152Dy

NUCLEAR REACTIONS 140Ce(16O, 4n), E=88 MeV; 141Pr(15N, 4n), E=80 MeV; measured Eγ, Iγ, γγ-coin, nγ(t). 152Dy levels deduced E, J, π. Comparison with microscopic calculations.

doi: 10.1103/PhysRevLett.42.23
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1979ST13      Nucl.Phys. A327, 295 (1979)

J.Styczen, E.Bozek, T.Pawlat, Zb.Stachura, F.A.Beck, C.Gehringer, B.Haas, J.C.Merdinger, N.Schulz, P.Taras, M. Toulemonde, J.P.Vivien, A.Muller-Arnke

High-Spin States in 50Ti, 52Cr and 54Fe

NUCLEAR REACTIONS 48Ca, 50Ti, 52Cr(α, 2nγ), E=24-33 MeV; measured Eγ, σ(E, θγ), linear polarization, γγ-coin, σ(θγ, t). 50Ti, 52Cr, 54Fe deduced levels, J, π, δ, T1/2. Enriched targets.

doi: 10.1016/0375-9474(79)90261-6
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1979TO05      J.Phys.(London) G5, 819 (1979)

M.Toulemonde, F.A.Beck, C.Gehringer, B.Haas, J.C.Merdinger, N.Schulz, J.P.Vivien

Experimental Evidence for Low-Lying Intruder States in 54Mn

NUCLEAR REACTIONS 52Cr(α, npγ), E=33 MeV; measured γγ-coin, γ(θ), linear polarization. 54Mn deduced J, π, δ, γ-branching ratio. Enriched target. Comparison, shell model.

doi: 10.1088/0305-4616/5/6/009
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1979VI10      Phys.Lett. 85B, 325 (1979)

J.P.Vivien, Y.Schutz, F.A.Beck, E.Bozek, T.Byrski, C.Gehringer, J.C.Merdinger

Multipolarity of the Continuum γ-Rays in 152Dy and 160Er via Linear Polarisation Measurements

NUCLEAR REACTIONS 140Ce(16O, 4n), E=89 MeV; 148Nd(16O, 4n), E=85 MeV; measured γ-linear polarization γ(θ). 152Dy, 160Er deduced δ of continuum transitions.

doi: 10.1016/0370-2693(79)91263-2
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1978BE20      Phys.Rev. C17, 1895 (1978)

F.A.Beck, T.Byrski, M.Toulemonde, J.P.Vivien

Lifetimes of the First and Second Excited 3/2- States in 41Ca Using the 2H(40Ca, p)41Ca Reaction

NUCLEAR REACTIONS 2H(40Ca, pγ), E=60 MeV; measured DSA. 41Ca levels deduced T1/2.

doi: 10.1103/PhysRevC.17.1895
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1978BE73      Hyperfine Interactions 4, 181 (1978)

F.A.Beck, T.Byrski, G.J.Costa, W.L.Randolph, J.P.Vivien

Nuclear g-Factor and Lifetime of the 5.24 MeV 5/2+ Level in 15O

NUCLEAR REACTIONS 3He(16O, α), E=50.8 MeV; measured Doppler-shifted Eγ, Iγ(θ), αγ-coin. 15O level deduced T1/2, g factor.

doi: 10.1007/BF01021819
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1978HA17      Phys.Rev.Lett. 40, 1313 (1978)

B.Haas, F.A.Beck, C.Gehringer, J.C.Merdinger, N.Schulz, P.Taras, M.Toulemonde, J.P.Vivien, J.Styczen, E.Bozek, Z.Stachura, T.Pawlat, A.Muller-Arnke

High-Spin Neutron Particle-Hole States in Even N = 28 Isotones

NUCLEAR REACTIONS 48Ca, 50Ti, 52Cr(α, 2nγ), E=27-33 MeV; measured σ(E, Eγ, θ), γγ-coin, γγ(θ), linear polarization, γ(t). 50Ti deduced levels, J, π, λ, δ, B(λ). 52Cr deduced configuration mixing.

doi: 10.1103/PhysRevLett.40.1313
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1977BE30      Phys.Rev. C16, 679 (1977)

F.A.Beck, T.Byrski, G.J.Costa, J.P.Vivien

Magnetic Moment and Lifetime of the First Excited State of Mirror Nuclei 21Ne and 21Na

NUCLEAR REACTIONS 4He(18O, n), E=19 MeV; 10B(16O, αn), E=42 MeV; 2H(20Ne, n), E=14 MeV; measured γ(θ, t), DSA. 21Ne 350 keV level, 21Na 332 keV level deduced T1/2, g, ionic electron configurations, B(M1).

doi: 10.1103/PhysRevC.16.679
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1976BE16      Phys.Rev. C13, 1792 (1976)

F.A.Beck, T.Byrski, A.Knipper, J.P.Vivien

Angular Correlation and Gamma Ray Linear Polarization Measurements in 29Al

NUCLEAR REACTIONS 26Mg(α, pγ), E=14.2 MeV; measured pγ(θ), Eγ, Iγ, linear polarization. 29Al deduced levels, J, π, δ, γ-branching. Enriched target. Ge(Li) Compton polarimeter.

doi: 10.1103/PhysRevC.13.1792
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1974BE05      Nucl.Phys. A218, 213 (1974)

F.A.Beck, T.Byrski, G.Costa, P.Engelstein

Lifetime Measurements in 29Al

NUCLEAR REACTIONS 26Mg(α, p), E=7-11 MeV; 27Al(t, p), E=2.5, 2.8 MeV; measured DSA, recoil distance. 29Al levels deduced T1/2. Isotopic, natural targets.

doi: 10.1016/0375-9474(74)90032-3
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1974BE43      Nucl.Phys. A228, 393 (1974)

F.A.Beck, T.Byrski, P.Engelstein, J.P.Vivien

Lifetimes of 26Mg, 26Al and 30Si Levels

NUCLEAR REACTIONS 23Na(α, p), (α, n), E=5.85 MeV; 27Al(α, p), E=3.90 MeV; measured recoil distance. 26Mg, 26Al, 30Si levels deduced T1/2. Natural targets.

doi: 10.1016/0375-9474(74)90610-1
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1974BY01      Nucl.Phys. A223, 125 (1974)

T.Byrski, F.A.Beck, P.Engelstein, M.Forterre, A.Knipper

Etude de la Structure du Noyau 29P

NUCLEAR REACTIONS 28Si(p, γ), E=0.35-2.65 MeV; 28Si(d, nγ), E=2.8, 5.1 MeV; measured Eγ, Iγ, dσ(θ(γ)), γγ(θ), Doppler shift attenuation. 29P levels, deduced E(X), J, γ-branching, γ-mixing, T1/2. Enriched target.

doi: 10.1016/0375-9474(74)90281-4
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1973BR33      Nucl.Phys. A216, 603 (1973)

C.Broude, F.A.Beck, P.Engelstein

Consistency Study of DSA Lifetime Measurements

NUCLEAR REACTIONS 24Mg(α, α'γ), (α, pγ), E=6.18 MeV; measured recoil distance, Doppler-shift attenuation. 24Mg, 27Al levels deduced T1/2. Enriched targets.

doi: 10.1016/0375-9474(73)90173-5
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1972CO08      Nucl.Phys. A181, 132 (1972)

G.Costa, F.A.Beck

Mesures de Vies Moyennes et de Coefficients de Melange dans le Noyau 27Mg

NUCLEAR REACTIONS 26Mg(d, pγ), E=2.0-5.5 MeV; measured σ(Eγ, θ), γγ(θ), Eγ(θ). 27Mg levels deduced γ-mixing, T1/2, B(E2), B(M1). Enriched 26Mg target.

doi: 10.1016/0375-9474(72)90906-2
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1972CO09      Nucl.Phys. A181, 174 (1972)

G.Costa, F.A.Beck, D.Magnac-Valette

Lifetime of the First Excited State of 8Li

NUCLEAR REACTIONS 9Be(t, α), E=1.0 MeV; measured Eγ(θ), Doppler-shift attenuation. 8Li deduced T1/2.

doi: 10.1016/0375-9474(72)90909-8
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1969GO11      Nucl.Instr.Methods 69, 163 (1969)

S.Gorodetzky, F.A.Beck, P.Engelstein, T.Byrski, A.Knipper

Appareillage Multicompteur pour la Mesure de Correlations Angulaires

RADIOACTIVITY 207Bi; measured γγ(θ).

NUCLEAR REACTIONS 53Cr(p, n), E not given; measured γγ(θ). Seven-detector goniometer.

doi: 10.1016/0029-554X(69)90589-8
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1968GO15      Nucl.Phys. A117, 208(1968)

S.Gorodetzky, F.A.Beck, T.Byrski, A.Knipper

Determination de Moments Angulaires et de Melanges Multipolaires dans le 211Bi

RADIOACTIVITY 211Pb; measured Eγ, Iγ, γγ-, γce-coin, γγ(θ), γ-polarization; 211Bi deduced levels, J, π, delta(M1+E2). Ge(Li) detector.

doi: 10.1016/0375-9474(68)90870-1
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1968GO17      Nucl.Phys. A118, 545(1968)

S.Gorodetzky, F.A.Beck, R.Bertini, J.Chevallier, A.Knipper

Distribution Angulaire et Polarisation Plane des Rayons Gamma de 955 keV du 12B

NUCLEAR REACTIONS 11B(d, p1), E=0.5-5.5 MeV; measured σ(E;Eγ, θ), γ-polarization. 12B level deduced J, π, delta. Enriched target.

doi: 10.1016/0375-9474(68)90439-9
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1968GO18      Nucl.Phys. A118, 556(1968)

S.Gorodetzky, F.A.Beck, R.Bertini, A.Knipper

Distribution Angulaire du Groupe de Protons p1 et Correlation Angulaires p1-γ dans la Reaction 11B(d, p)12B

NUCLEAR REACTIONS 11B(d, p), E=0.7 MeV; measured σ(Ep, θ), pγ(θ); deduced reaction mechanism. Natural targets.

doi: 10.1016/0375-9474(68)90440-5
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1966GO21      Nucl.Phys. 85, 576 (1966)

S.Gorodetzky, F.A.Beck, R.Bertini, E.Bozek, A.Knipper

Distribution Angulaire, Correlations Angulaires et Polarisation Plane des Rayons Gamma de la Reaction 53Cr(p, n)53Mn

NUCLEAR REACTIONS 53Cr(p, nγ), E = 3.15, 3.25 MeV; measured σ(Eγ, θ), γ-polarization (θ), γγ(θ). 53Mn levels deduced, J, π, deltaγ. Natural, enriched targets.

doi: 10.1016/0029-5582(66)90323-3
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