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Search: Author = H.Lehmann

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2018AP03      Phys.Rev. C 98, 034303 (2018)

A.Aprahamian, R.C.de Haan, S.R.Lesher, C.Casarella, A.Stratman, H.G.Borner, H.Lehmann, M.Jentschel, A.M.Bruce

Lifetime measurements in 156Gd

NUCLEAR REACTIONS 155Gd(n, γ), E=thermal; measured Eγ, Iγ, level half-lives by GRID technique for the broadening of decay γ-ray lines using GAMS4 double-flat-crystal spectrometer at the Institut Laue-Langevin (ILL-Grenoble) High Flux Reactor. 156Gd; deduced levels, J, π, B(E2), B(E1), intrinsic quadrupole moments, dynamic moments of inertia of the K=0+, 2+, 4+ bands. Systematics of levels, two-neutron and two-proton pairing gaps in 154,156,158,160Gd. Comparison with previous experimental values, and with partial dynamical symmetry (PDS), and 5DCH predictions.

doi: 10.1103/PhysRevC.98.034303
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2008SM01      Phys.Rev. C 77, 014309 (2008)

D.L.Smith, H.Mach, H.Penttila, H.Bradley, J.Aysto, V.-V.Elomaa, T.Eronen, D.G.Ghita, J.Hakala, M.Hauth, A.Jokinen, P.Karvonen, T.Kessler, W.Kurcewicz, H.Lehmann, I.D.Moore, J.Nyberg, S.Rahaman, J.Rissanen, J.Ronkainen, P.Ronkanen, A.Saastamoinen, T.Sonoda, O.Steczkiewicz, C.Weber

Lifetime measurements of the negative-parity 7- and 8- states in 122Cd

RADIOACTIVITY 122Ag(β-) [from 238U(p, F), E=50 MeV]; measured Eγ, Iγ, γγ-coin, lifetimes. 122Cd; deduced levels, B(M1), B(E1), B(E2), half-lives using Advanced Time-delayed βγγ(t) method. Comparison with 124Sn, 126Te.

doi: 10.1103/PhysRevC.77.014309
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2007GA22      Phys.Rev. C 75, 054310 (2007)

P.E.Garrett, K.L.Green, H.Lehmann, J.Jolie, C.A.McGrath, M.Yeh, S.W.Yates

Properties of 112Cd from the (n, n'γ) reaction: Lifetimes and transition rates

NUCLEAR REACTIONS 112Cd(n, n'γ), E=fast; measured Eγ, Iγ, angular distributions and lifetimes using Doppler shift attenuation technique. Deduced B(E1), B(E2) and B(M1).

doi: 10.1103/PhysRevC.75.054310
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2004GR26      Phys.Rev. C 70, 034316 (2004)

C.Granja, S.Pospisil, A.Aprahamian, H.Borner, H.Lehmann, T.von Egidy, H.-F.Wirth, G.Graw, R.Hertenberger, Y.Eisermann, D.Nosek, L.Rubacek, S.A.Telezhnikov

Nuclear structure of 159Gd

NUCLEAR REACTIONS 158Gd(n, γ), E=thermal; measured Eγ, Iγ. 158Gd(d, p), E=18 MeV; 160Gd(d, t), E=25 MeV; measured Ep, triton spectra, σ(E, θ). 160Gd(polarized d, t), E=22 MeV; measured triton spectra, σ(E, θ), Ay(θ). 160Gd(d, t), E=25 MeV; measured triton spectra. 159Gd deduced levels, J, π, spectroscopic factors, rotational bands, configurations. Comparison with quasiparticle-phonon and quasiparticle-rotor model predictions. Level systematics in neighboring nuclides compared.

doi: 10.1103/PhysRevC.70.034316
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22768. Data from this article have been entered in the XUNDL database. For more information, click here.

2002AP02      Phys.Rev. C65, 031301 (2002)

A.Aprahamian, R.C.de Haan, H.G.Borner, H.Lehmann, C.Doll, M.Jentschel, A.M.Bruce, R.Piepenbring

Lifetime Measurements of Excited Kπ = 0+ Bands in 178Hf

NUCLEAR REACTIONS 177Hf(n, γ), E=thermal; measured Eγ, Iγ, Doppler shifts. 178Hf deduced levels T1/2, B(E2), configurations. Gamma-ray induced Doppler broadening technique, double flat crystal spectrometer.

doi: 10.1103/PhysRevC.65.031301
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2001GA44      Phys.Rev. C64, 024316 (2001)

P.E.Garrett, H.Lehmann, J.Jolie, C.A.McGrath, M.Yeh, W.Younes, S.W.Yates

Properties of 112Cd from the (n, n'γ) Reaction: Levels and level densities

NUCLEAR REACTIONS 112Cd(n, n'γ), E=1.8-4.2 MeV; measured Eγ, Iγ(θ), γγ-coin, excitation functions. 112Cd deduced levels, J, π, δ, level density parameters.

doi: 10.1103/PhysRevC.64.024316
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13943. Data from this article have been entered in the XUNDL database. For more information, click here.

2001KO49      Yad.Fiz. 64, No 6, 1217 (2001); Phys.Atomic Nuclei 64, 1141 (2001)

C.Kohstall, D.Belic, P.von Brentano, C.Fransen, R.-D.Herzberg, J.Jolie, U.Kneissl, H.Lehmann, A.Linnemann, P.Matschinsky, A.Nord, N.Pietralla, H.H.Pitz, M.Scheck, F.Stedile, V.Werner, S.W.Yates

Low-Lying Dipole Excitations in the Stable Cd Isotopes: A systematics

NUCLEAR REACTIONS 110,111,112,113,114,116Cd(γ, γ'), E=4.1 MeV bremsstrahlung; measured Eγ, Iγ, γ-ray polarization. 110,111,112,113,114,116Cd deduced levels, J, π, B(E1). Nuclear resonance fluorescence.

doi: 10.1134/1.1383631
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2000BO43      Trans.Bulg.Nucl.Soc. 5, 13 (2000)

H.G.Borner, M.Jentschel, H.Lehmann, E.G.Kessler

Ultra-High Precision Gamma-Ray Spectroscopy

2000DO11      Nucl.Phys. A672, 3 (2000)

C.Doll, H.Lehmann, H.G.Borner, T.von Egidy

Lifetime Measurement in 124Te

NUCLEAR REACTIONS 123Te(n, γ), E=reactor; measured Doppler-shifted Eγ, Iγ. 124Te deduced levels J, π, T1/2, B(E2), collective features. Gamma-ray induced Doppler broadening technique. Comparisons with theory.

doi: 10.1016/S0375-9474(99)00848-9
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2000GA03      Nucl.Phys. A662, 235 (2000)

P.E.Garrett, H.Baltzer, M.Bertschy, D.G.Burke, M.Deleze, S.Drissi, C.Gunther, J.Jolie, J.Kern, H.Lehmann, S.J.Mannanal, J.Manns, U.Muller, J.P.Vorlet, N.Warr, T.Weber

Nuclear Levels in 190Ir Studied with the 192Os(p, 3nγ) and 192Os(d, 4ne-) Reactions

NUCLEAR REACTIONS 192Os(p, 3n), E=18.6, 20.8, 24.2, 27.2, 31.1 MeV; measured Eγ, Iγ(t), γγ-coin. 192Os(d, 4n), E=27.8 MeV; measured E(ce), I(ce), e-e--coin. 190Ir deduced levels J, π, T1/2. Two-quasiparticle-rotor calculations. Enriched targets, Ge detectors, orange spectrometers.

NUCLEAR STRUCTURE 189Os, 190,191Ir; calculated levels, J, π. Particle-rotor calculations.

doi: 10.1016/S0375-9474(99)00365-6
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2000GE01      Nucl.Phys. A662, 3 (2000); Erratum Nucl.Phys. A669, 407 (2000)

L.Genilloud, H.G.Borner, F.Corminboeuf, Ch.Doll, S.Drissi, M.Jentschel, J.Jolie, J.Kern, H.Lehmann, N.Warr

Study of the Vibrational Nucleus 100Ru by the 98Mo(α, 2nγ) and 99Ru(n, γ) Reactions

NUCLEAR REACTIONS 98Mo(α, 2n), E=21.0, 24.7, 28.7 MeV; measured Eγ, Iγ, γγ-coin. 99Ru(n, γ), E=thermal; measured Eγ, Iγ. 100Ru deduced levels, J, π. Enriched targets, Compton-suppressed Ge detectors. Comparison with interacting boson model.

doi: 10.1016/S0375-9474(99)00354-1
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2000GE14      Phys.Rev. C62, 034313 (2000)

L.Genilloud, J.Jolie, H.G.Borner, H.Lehmann, F.Becvar, M.Krticka, N.V.Zamfir, R.F.Casten

Lifetimes of Negative Parity States in 168Er

NUCLEAR REACTIONS 167Er(n, γ), E=reactor; measured Doppler-broadened Eγ, Iγ. 168Er levels deduced T1/2, B(E1). Gamma-ray induced Doppler broadening technique. Comparison with IBA model predictions.

doi: 10.1103/PhysRevC.62.034313
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2000JE06      J.Res.Natl.Inst.Stand.Technol. 105, 25 (2000)

M.Jentschel, H.G.Borner, H.Lehmann, C.Doll

The GRID Technique: Current status and new trends

doi: 10.6028/jres.105.004
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2000KO47      Trans.Bulg.Nucl.Soc. 5, 179 (2000)

C.Kohstall, D.Belic, P.von Brentano, C.Fransen, R.-D.Herzberg, J.Jolie, U.Kneissl, H.Lehmann, A.Linnemann, P.Matschinsky, A.Nord, N.Pietralla, H.H.Pitz, V.Werner, S.W.Yates

Systematics of Dipole Excitations in the Stable 110, 111, 112, 113, 114, 116Cd Isotopes

NUCLEAR REACTIONS 110,111,112,113,114,116Cd(γ, γ'), E=4.3 MeV bremsstrahlung; measured Eγ, Iγ. 110,111,112,113,114,116Cd; deduced levels, dipole strength distributions. Comparison with model predictions.

1999AP02      J.Phys.(London) G25, 685 (1999)

A.Aprahamian, R.C.de Haan, S.R.Lesher, J.Doring, A.M.Bruce, H.G.Borner, M.Jentschel, H.Lehmann

Collective Kπ = 0+ Vibrational Excitations in 178Hf

NUCLEAR REACTIONS 177Hf(n, γ), E=thermal; measured Eγ, Iγ. 178Hf deduced levels T1/2, B(E2), collective effects. Gamma-ray induced Doppler broadening technique.

doi: 10.1088/0954-3899/25/4/020
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1999DE16      Nucl.Phys. A651, 31 (1999)

C.De Coster, B.Decroix, K.Heyde, J.Jolie, H.Lehmann, J.L.Wood

Particle-Hole Excitations in the Interacting Boson Model (IV). The U(5)-SU(3) Coupling

NUCLEAR STRUCTURE 192,194,195,196,198,200,202Po; calculated levels, J, π. Extended IBM, U(5)-SU(3) coupling.

doi: 10.1016/S0375-9474(99)00124-4
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1999GA15      Phys.Rev. C59, 2455 (1999)

P.E.Garrett, H.Lehmann, J.Jolie, C.A.McGrath, M.Yeh, S.W.Yates

Quadrupole-Octupole Coupled States in 112Cd

NUCLEAR REACTIONS 112Cd(n, n'), E=1.8-4.2 MeV; measured Eγ, Iγ(En, θ). 112Cd deduced levels, J, π, δ, T1/2, B(E1), B(E2), possible quadrupole-octupole coupled states. IBM calculations.

doi: 10.1103/PhysRevC.59.2455
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1999GA20      J.Phys.(London) G25, 823 (1999)

P.E.Garrett, H.Lehmann, J.Jolie, C.A.McGrath, M.Yeh, S.W.Yates

Quadrupole-Octupole Coupled States in 112Cd

NUCLEAR REACTIONS 112Cd(n, n'), E not given; measured Eγ, Iγ(θ), γγ-coin. 112Cd deduced levels, J, π, B(E1), B(E2), possible quadrupole-octupole coupled states. IBM calculations.

doi: 10.1088/0954-3899/25/4/046
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1999KE05      Phys.Lett. 255A, 221 (1999)

E.G.Kessler, Jr., M.S.Dewey, R.D.Deslattes, A.Henins, H.G.Borner, M.Jentschel, C.Doll, H.Lehmann

The Deuteron Binding Energy and the Neutron Mass

NUCLEAR REACTIONS 1H(n, γ), E=reactor; measured Eγ, Iγ. 2H deduced binding energy. 1n deduced mass. Crystal diffraction spectrometer.

doi: 10.1016/S0375-9601(99)00078-X
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1999LE18      J.Phys.(London) G25, 827 (1999)

H.Lehmann, H.G.Borner, R.F.Casten, F.Corminboeuf, C.Doll, M.Jentschel, J.Jolie, N.V.Zamfir

On the Importance of the SU(3) Description for the Interpretation of the First Excited Kπ = 0+ Band in Deformed Nuclei

NUCLEAR STRUCTURE 164Dy, 168Er; analyzed levels T1/2; deduced excitation modes for excited 0+ bands.

doi: 10.1088/0954-3899/25/4/047
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1999LE31      Phys.Rev. C60, 024308 (1999)

H.Lehmann, A.Nord, A.E.de Almeida Pinto, O.Beck, J.Besserer, P.von Brentano, S.Drissi, T.Eckert, R.-D.Herzberg, D.Jager, J.Jolie, U.Kneissl, J.Margraf, H.Maser, N.Pietralla, H.H.Pitz

Dipole Excitations in the Vibrational Nucleus 112Cd

NUCLEAR REACTIONS 112Cd(γ, γ'), E=4.1 MeV bremsstrahlung; measured Eγ, Iγ. 112Cd deduced levels, J, π, decay branching ratios, B(M1), B(E1). Nuclear resonance fluorescence technique. Comparison with IBM calculations.

doi: 10.1103/PhysRevC.60.024308
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1998GA40      Phys.Rev. C58, 3734 (1998)

P.E.Garrett, D.G.Burke, M.Deleze, S.Drissi, J.Jolie, J.Kern, H.Lehmann, S.J.Mannanal, N.Warr

States in 191Os Observed with the 192Os(p, pnγ) Reaction

NUCLEAR REACTIONS 192Os(p, np), E=18.6, 20.8, 24.2, 27.2, 31.1 MeV; measured Eγ, Iγ(θ), γγ-coin. 191Os deduced levels, J, π, configurations.

doi: 10.1103/PhysRevC.58.3734
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1998LE03      Phys.Rev. C57, 569 (1998)

H.Lehmann, J.Jolie, F.Corminboeuf, H.G.Borner, C.Doll, M.Jentschel, R.F.Casten, N.V.Zamfir

Lifetimes of the Lowest 2+(K(π) = 0+) Levels in 168Er and 164Dy

NUCLEAR REACTIONS 167Er, 163Dy(n, γ), E=reactor; measured Eγ, Iγ. 168Er, 164Dy deduced levels T1/2, B(E2)B(M1), excited K(π)=0+ band configurations. Gamma-ray induced Doppler broadening technique. Several models compared.

doi: 10.1103/PhysRevC.57.569
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1998WA18      Nucl.Phys. A636, 379 (1998)

N.Warr, S.Drissi, P.E.Garrett, J.Jolie, J.Kern, H.Lehmann, S.J.Mannanal, J.-P.Vorlet

Study of 124Te by the 122Sn(α, 2nγ) Reaction and by the Decay of 124I

NUCLEAR REACTIONS 122Sn(α, 2nγ), E=18, 20.5, 22.5, 26 MeV; measured Eγ, Iγ(θ), γγ-coin. 124Te deduced levels, J, π, δ. Enriched targets, Compton-supressed Ge detectors. Comparison with IBM, PCM.

RADIOACTIVITY 124I(β+), (EC) [from 123Sb(α, 3n)]; measured Eγ, Iγ, γγ-coin. 124Te deduced levels, J, π, log ft.

doi: 10.1016/S0375-9474(98)00214-0
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1997CO18      Phys.Rev. C56, R1201 (1997)

F.Corminboeuf, J.Jolie, H.Lehmann, K.Fohl, F.Hoyler, H.G.Borner, C.Doll, P.E.Garrett

K(π) = 4+ Double-γ Vibration in 164Dy

NUCLEAR REACTIONS 163Dy(n, γ), E=reactor; measured Eγ, Iγ, γγ-coin, I(ce). 164Dy level deduced J, π, K, T1/2, B(E2). Gamma-ray induced Doppler broadening technique. Two-phonon vibration.

doi: 10.1103/PhysRevC.56.R1201
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1997DE28      Nucl.Phys. A621, 802 (1997)

C.De Coster, B.Decroix, K.Heyde, J.L.Wood, J.Jolie, H.Lehmann

Particle-Hole Excitations in the Interacting Boson Model (III): The O(6)-SU(3) coupling

NUCLEAR STRUCTURE 180,182,184,186Os, 184,186,188,190Po, 180,178W, 190,192,182,184Pt, 196,194,188,186Pb, 192,190Rn, 196Th; calculated levels. 182,184,186,188,190,192,194,196,198Pt; calculated g factors. Extended interacting boson model.

doi: 10.1016/S0375-9474(97)00195-4
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1997LE16      Nucl.Phys. A621, 767 (1997)

H.Lehmann, J.Jolie, C.De Coster, B.Decroix, K.Heyde, J.L.Wood

Particle-Hole Excitations in the Interacting Boson Model (II): The U(5)-O(6) coupling

NUCLEAR STRUCTURE 108,110,112,114Cd, 112,114,116,118Te, 114Cd, 122Ba; calculated levels, B(λ). Extended interacting boson model.

doi: 10.1016/S0375-9474(97)00196-6
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1996DE15      Nucl.Phys. A600, 251 (1996)

C.De Coster, K.Heyde, B.Decroix, P.Van Isacker, J.Jolie, H.Lehmann, J.L.Wood

Particle-Hole Excitations in the Interacting Boson Model (I) General Structure and Symmetries

NUCLEAR STRUCTURE 110Ru, 122Ba, 114Cd, 118Te; calculated, compared low-lying collective states. Particle-hole excitations in interacting boson model.

doi: 10.1016/0375-9474(96)00019-X
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1996GA26      Phys.Rev. C54, 2259 (1996)

P.E.Garrett, H.Lehmann, C.A.McGrath, M.Yeh, S.W.Yates

First Observation of Mixed-Symmetry States in a Good U(5) Nucleus

NUCLEAR REACTIONS 112Cd(n, n'γ), E=2.5, 4.2 MeV; measured Eγ, Iγ, Iγ(θ), γγ-coin, Doppler shift. 112Cd levels deduced T1/2, B(λ), Iγ, δ, mixed-symmetry character. Enriched target.

doi: 10.1103/PhysRevC.54.2259
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1996LE19      Phys.Lett. 387B, 259 (1996)

H.Lehmann, P.E.Garrett, J.Jolie, C.A.McGrath, M.Yeh, S.W.Yates

On the Nature of ' Three-Phonon ' Excitations in 112Cd

NUCLEAR REACTIONS 112Cd(n, n'γ), E=2.5 MeV; measured Eγ, Iγ, DSA. 112Cd levels deduced T1/2, B(λ). Phonon model, interacting boson model.

doi: 10.1016/0370-2693(96)01038-6
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1995HE08      Nucl.Phys. A586, 1 (1995)

K.Heyde, J.Jolie, H.Lehmann, C.De Coster, J.L.Wood

Coexistence in Even-Even Cd Nuclei: Global structure and local perturbations

NUCLEAR STRUCTURE 112,114Cd; calculated levels, B(λ). 110Cd; calculated levels; deduced different excitations coexistence related features. Combination of anharmonic quadrupole vibrational intruder spectra.

doi: 10.1016/0375-9474(94)00721-X
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1995JO10      Phys.Lett. 342B, 1 (1995)

J.Jolie, H.Lehmann

On the Influence of the O(5) Symmetry on Shape Coexistence in Atomic Nuclei

NUCLEAR STRUCTURE 110,112,114Cd; analyzed B(E2) data; deduced O(5) group quantum number goodness features. Interacting boson model.

doi: 10.1016/0370-2693(94)01392-P
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1995KE09      Nucl.Phys. A593, 21 (1995)

J.Kern, P.E.Garrett, J.Jolie, H.Lehmann

Search for Nuclei Exhibiting the U(5) Dynamical Symmetry

NUCLEAR STRUCTURE 74,76Se, 82,84Sr, 100Mo, 98,100,102,104Ru, 104,106,108,110Pd, 108,110,112,114,118Cd, 152Gd, 154Dy, 118,120,122,124Te, 118,120Xe, 152Gd, 154Dy; analyzed levels, B(λ) data in some cases. Interacting boson model framework, U(5) dynamical symmetry.

doi: 10.1016/0375-9474(95)00314-Q
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1995LE21      Nucl.Phys. A588, 623 (1995)

H.Lehmann, J.Jolie

The U(5)-O(6) Model: An analytical approach to shape coexistence

NUCLEAR STRUCTURE 110,112,114Cd; calculated levels, B(λ). Analytic approach to shape coexistence, U(5)-O(6) model.

doi: 10.1016/0375-9474(95)00045-3
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