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Search: Author = G.Garcia-Bermudez

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2001GA50      Phys.Rev. C64, 034311 (2001)

G.Garcia Bermudez, M.A.Cardona

Systematic Features of Signature Inversion in Doubly Odd Nuclei

NUCLEAR STRUCTURE A=74-86; A=118-134; A=152-178; analyzed rotational bands critical spins and frequencies for signature inversion in odd-odd nuclei, correlations with other nuclear parameters.

doi: 10.1103/PhysRevC.64.034311
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2000CA07      Phys.Rev. C61, 044316 (2000)

M.A.Cardona, G.Garcia Bermudez, R.A.Kaye, G.Z.Solomon, S.L.Tabor

Transition Strengths in Odd-Odd 80Rb

NUCLEAR REACTIONS 55Mn(28Si, n2p), E=90 MeV; measured Eγ, Iγ, γγ-coin, DSA. 80Rb deduced high-spin levels, J, π, T1/2, B(M1), B(E2), deformation. TRS calculations.

doi: 10.1103/PhysRevC.61.044316
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2000GA55      Acta Phys.Hung.N.S. 11, 345 (2000)

G.Garcia-Bermudez, M.A.Cardona

Signature Inversion in Odd-Odd Nuclei Around A ≈ 80

NUCLEAR STRUCTURE 74,76,78Br, 76,78,80,82Rb, 80,82,84Y, 86Nb; analyzed, compiled high-spin level differences, B(M1) strength data vs J; deduced signature inversion critical frequency, critical moment of inertia. A=70-170; analyzed, compiled high-spin level properties data; deduced signature inversion critical frequency, critical moment of inertia.


1999GA11      Phys.Rev. C59, 1999 (1999)

G.Garcia-Bermudez, M.A.Cardona, A.Filevich, R.V.Ribas, H.Somacal, L.Szybisz

Transition Strengths and Signature Inversion in Odd-Odd 74Br

NUCLEAR REACTIONS 60Ni(16O, np), E=50 MeV; measured Doppler-shifted Eγ, Iγ. 74Br deduced high-spin levels T1/2, B(M1), B(E2), branching ratios, signature inversion. Recoil-distance technique. Comparisons with neighboring nuclides.

doi: 10.1103/PhysRevC.59.1999
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1998BO33      Phys.Rev. C58, 3726 (1998)

S.Botelho, W.A.Seale, L.G.R.Emediato, J.R.B.Oliveira, M.N.Rao, R.V.Ribas, N.H.Medina, E.W.Cybulska, M.A.Rizzutto, F.R.Espinoza-Quinones, G.Garcia-Bermudez, H.Somacal, M.A.Cardona

Lifetime Measurements in 135Pr

NUCLEAR REACTIONS 123Sb(16O, 4n), E=76 MeV; measured Eγ, Iγ, DSA. 135Pr levels deduced T1/2, B(E2). TRS calculations.

doi: 10.1103/PhysRevC.58.3726
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1998KA19      Phys.Rev. C57, 2189 (1998)

R.A.Kaye, J.B.Adams, A.Hale, C.Smith, G.Z.Solomon, S.L.Tabor, G.Garcia-Bermudez, M.A.Cardona, A.Filevich, L.Szybisz

Transition Strengths in 86Nb and 86Zr

NUCLEAR REACTIONS 58Ni(32S, n3p), (32S, 4p), E=130 MeV; measured Eγ, Iγ, recoil-distance spectra. 86Nb, 86Zr deduced transitions T1/2, B(E2), configurations. Cranked shell model calculations.

doi: 10.1103/PhysRevC.57.2189
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1997CA01      Phys.Rev. C55, 144 (1997)

M.A.Cardona, M.E.Debray, G.Garcia Bermudez, D.Hojman, A.J.Kreiner, H.Somacal, A.Burlon, J.Davidson, M.Davidson, G.Levinton, M.Ozafran, M.Vazquez, D.R.Napoli, J.Rico, D.Bazzacco, R.Burch, D.De Acuna, S.M.Lenzi, N.Medina, C.Rossi Alvarez, N.Blasi, G.Lo Bianco, J.de Boer, D.Frischke, H.J.Maier

Pseudospin Doublet Aligned Structure in Doubly Odd 186Ir

NUCLEAR REACTIONS 180Hf(11B, 5n), E=65 MeV; measured γγγ-coin, DCO ratios. 186Ir deduced levels, J, π, configuration, B(λ) ratios. In-beam γ-, conversion electron spectroscopy. Cranking model comparison.

doi: 10.1103/PhysRevC.55.144
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1997GA26      Phys.Rev. C56, 2869 (1997)

G.Garcia Bermudez, J.Doring, G.D.Johns, R.A.Kaye, M.A.Riley, S.L.Tabor, C.J.Gross, M.J.Brinkman, H.Q.Jin

Collective Structure in 70As

NUCLEAR REACTIONS 58Ni(16O, n3p), E=70 MeV; measured Eγ, Iγ, γγ-coin. 70As deduced high-spin levels T1/2, B(E2), deformation. Total Routhian Surface calculation.

doi: 10.1103/PhysRevC.56.2869
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1996JO05      Phys.Rev. C53, 1541 (1996)

G.D.Johns, K.A.Christian, R.A.Kaye, S.L.Tabor, G.Garcia-Bermudez, M.A.Cardona, A.Filevich, H.Somacal, L.Szybisz

Evolution of Collectivity in 82Y and 82Sr

NUCLEAR REACTIONS 58Ni(27Al, n2p), (27Al, 3p), E=90 MeV; measured Eγ, recoil distance. 82Y, 82Sr deduced levels, T1/2, B(λ), collectivity features.

doi: 10.1103/PhysRevC.53.1541
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1995GA06      Phys.Rev. C51, 1181 (1995)

G.Garcia-Bermudez, H.Somacal, M.A.Cardona, A.Filevich, E.Achterberg, L.Szybisz

πg9/2 (x) νg9/2 Multiplet: Nuclear structure of 82Y

NUCLEAR REACTIONS 58Ni(27Al, n2p), E=75-105 MeV; 60Ni(28Si, npα), E=100-130 MeV; 58Ni(28Si, n3p), E=95-120 MeV; measured γγ-, nγ-coin, Eγ, Iγ, σ(E), γγ(t), γ(θ). 82Y deduced high-spin levels, J, π, configuration. Comparison with other nuclei.

doi: 10.1103/PhysRevC.51.1181
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1994GA15      Phys.Rev. C49, 3309 (1994)

G.Garcia Bermudez, C.Baktash, V.Abenante, H.C.Griffin, M.L.Halbert, D.C.Hensley, N.R.Johnson, I.Y.Lee, F.K.McGowan, M.A.Riley, D.G.Sarantites, T.M.Semkow, D.W.Stracener, A.Virtanen

High Spin States of 84Sr

NUCLEAR REACTIONS 52Cr(36S, 2n2p), E=130 MeV; measured Eγ, Iγ, γγ-coin. 84Sr deduced levels, J, π.

doi: 10.1103/PhysRevC.49.3309
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1993GA19      Phys.Rev. C48, 1623 (1993)

G.Garcia-Bermudez, M.A.Cardona, R.V.Ribas, A.Filevich, E.Achterberg, L.Szybisz

Level Structure of 89Mo

NUCLEAR REACTIONS 60Ni(32S, n2p), E=110 MeV; measured Eγ, Iγ, γγ-, γ-coin, Iγ(θ). 89Mo deduced levels, J, π, configuration. Hyperpure Ge detectors.

doi: 10.1103/PhysRevC.48.1623
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1991BA12      Phys.Lett. 255B, 174 (1991)

C.Baktash, G.Garcia-Bermudez, D.G.Sarantites, W.Nazarewicz, V.Abenante, J.R.Beene, H.C.Griffin, M.L.Halbert, D.C.Hensley, N.R.Johnson, I.Y.Lee, F.K.McGowan, M.A.Riley, D.W.Stracener, T.M.Semkow, A.Virtanen

Shape Coexistence and Disappearance of Pairing Correlations in 82Sr

NUCLEAR REACTIONS 52Cr(34S, 2n2p), E=130 MeV; measured γγ-coin. 82Sr deduced levels, J, π, band structure, shape features. Woods-Saxon cranking calculations.

doi: 10.1016/0370-2693(91)90232-F
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1990CA16      Phys.Rev. C41, 2403 (1990)

M.A.Cardona, G.Garcia Bermudez, A.Filevich, E.Achterberg

Transition Strengths in 79Sr

NUCLEAR REACTIONS 54Fe(28Si, n2p), E=97 MeV; measured Eγ, Iγ, recoil distance Doppler shift. 79Sr levels deduced T1/2, B(E2), transition quadrupole moments.

doi: 10.1103/PhysRevC.41.2403
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1990CA27      Phys.Rev. C42, 591 (1990)

M.A.Cardona, G.Garcia Bermudez, A.Filevich, E.Achterberg

Lifetime Measuremens in 75Kr and Systematic Study of Krypton Isotopes

NUCLEAR REACTIONS 54Fe(24Mg, n2p), E=75 MeV; measured Eγ, Iγ, recoil distance Doppler shift. 75Kr levels deduced T1/2, B(E2). Enriched target. Triaxial rotor-plus-quasiparticle model.

NUCLEAR STRUCTURE 75,77,79Kr; calculated levels, B(λ). Triaxial rotor-plus-quasiparticle model.

doi: 10.1103/PhysRevC.42.591
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1990GA18      Nucl.Instrum.Methods Phys.Res. B47, 439 (1990)

G.Garcia Bermudez, D.Abriola, M.Alurralde, M.A.Cardona, A.Filevich, H.Somacal

The Coulomb Excitation Backscattering Spectrometry Technique for the Study of the Surfaces of Materials

NUCLEAR REACTIONS Ag, Pd(S, S'), E=90 MeV; measured Eγ, Iγ following Coulomb excitation. Backscattering spectrometry technique.

doi: 10.1016/0168-583X(90)90624-4
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1990GA22      Nucl.Instrum.Methods Phys.Res. A292, 367 (1990)

G.Garcia Bermudez, M.A.Cardona, A.Filevich

A Simple Plunger Device and Error Analysis of Nuclear Lifetime Measurements

NUCLEAR REACTIONS 63Cu(19F, 2n2p), E=70 MeV; measured γ-decay curves. 78Kr levels deduced T1/2. Monte Carlo fits to data, plunger device.

doi: 10.1016/0168-9002(90)90393-K
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1990NI10      Nucl.Phys. A520, 153c (1990)

N.G.Nicolis, D.G.Sarantites, C.Baktash, V.Abenante, L.A.Adler, J.R.Beene, F.A.Dilmanian, G.Garcia-Bermudez, H.C.Griffin, M.L.Halbert, D.C.Hensley, N.R.Johnson, I.Y.Lee, Z.Majka, F.K.McGowan, M.A.Riley, T.M.Semkow, D.W.Stracener, A.Virtanen

Alpha-Particle Emission as a Probe of Nuclear Shapes and Structure Effects in Proton Evaporation Spectra

NUCLEAR REACTIONS 52Cr(34S, 2n2p), E=130 MeV; measured pγ-coin, proton spectra. 105Pd(32S, 2n2p), E=155 MeV; analyzed data; deduced shape, structure effects role.

doi: 10.1016/0375-9474(90)91143-F
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1990SA13      Phys.Rev.Lett. 64, 2129 (1990)

D.G.Sarantites, C.Baktash, N.G.Nicolis, G.Garcia-Bermudez, V.Abenante, J.R.Beene, N.R.Johnson, M.L.Halbert, D.C.Hensley, F.K.McGowan, H.C.Griffin, I.Y.Lee, Z.Majka, M.A.Riley, T.M.Semkow, D.W.Stracener, A.Virtanen

Nuclear-Structure Effects in Proton Evaporation Spectra

NUCLEAR REACTIONS 52Cr(34S, 2n2p), E=130 MeV; measured pγ-coin, proton spectra, pγ(θ). 82Sr deduced rotational band role in proton evaporation spectra.

doi: 10.1103/PhysRevLett.64.2129
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1988GA13      Phys.Rev. C38, 1083 (1988)

G.Garcia Bermudez, C.Baktash, C.J.Lister, M.A.Cardona

Systematic Features in the Structure of Doubly Odd Nuclei Around A ≈ 80 Mass Region: Band structure in 76Rb

NUCLEAR REACTIONS 40Ca(39K, n2p), E=120 MeV; measured Eγ, Iγ, Iγ(θ), γγ-coin. 76Rb deduced levels, J, π.

doi: 10.1103/PhysRevC.38.1083
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1984GA27      Phys.Rev. C30, 1208 (1984)

G.Garcia Bermudez, C.Baktash, C.J.Lister

Collective Bands in 75Kr

NUCLEAR REACTIONS 40Ca(39K, n3p), E=120 MeV; measured Eγ, Iγ, Iγ(θ), γγ-coin. 75Kr deduced levels, J, π, band structure, Nilsson assignments. Ge(Li) detectors, natural target.

doi: 10.1103/PhysRevC.30.1208
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1984MA30      Nucl.Phys. A422, 167 (1984)

M.A.J.Mariscotti, A.J.Kreiner, M.Behar, A.O.Macchiavelli, G.Garcia Bermudez, A.M.J.Ferrero

The High-Spin Structure of 100Rh

NUCLEAR REACTIONS 99Ru(α, 2np), E=30-55 MeV; 98Mo(6Li, 4n), E=35-45 MeV; measured Eγ, Iγ, γγ-coin, αγ(t), γ(θ). 100Rh deduced levels, J, π, T1/2. Ge(Li), Ge detectors, anti-Compton spectrometer, enriched targets.

doi: 10.1016/0375-9474(84)90436-6
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1982BE01      Nucl.Phys. A373, 483 (1982)

M.Behar, A.Ferrero, A.Filevich, G.Garcia Bermudez, M.A.J.Mariscotti

High-Spin States in 94Tc

RADIOACTIVITY 94Tc [from 93Nb(α, 3n), E=45 MeV]; measured Eγ, Iγ, γ(θ), σ(Eγ), γγ-coin, T1/2; deduced levels, J, π, γ-branching.

doi: 10.1016/0375-9474(82)90545-0
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1982BE03      Nucl.Phys. A376, 131 (1982)

M.Behar, D.Abriola, A.Filevich, G.Garcia Bermudez, A.J.Kreiner, M.A.J.Mariscotti, J.A.Pinston, D.Barneoud

In-Beam Study of 78Br

NUCLEAR REACTIONS, ICPND 77Se(α, 2npγ), E=40-50 MeV; measured σ(E, Eγ), Eγ, Iγ, Iγ(θ, t), γγ-coin; 77Se(α, 2n), (α, np), (α, 3n), (α, 2np), (α, 4n), (α, 3np), E=30-55 MeV; measured gamma ray yield. 78Br deduced levels, J, T1/2. Enriched targets.

doi: 10.1016/0375-9474(82)90536-X
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1982GA06      Phys.Rev. C25, 1396 (1982)

G.Garcia Bermudez, C.Baktash, A.J.Kreiner, M.A.J.Mariscotti

High Spin States in the Doubly Odd 72Br Nucleus

NUCLEAR REACTIONS, ICPND 58Ni(16O, np), E=40-55 MeV; measured Eγ, Iγ, Iγ(t), Iγ(θ), γγ(t), γ yield. 72Br deduced levels, J, π. Enriched target, Ge(Li) detector.

doi: 10.1103/PhysRevC.25.1396
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1982GA22      Phys.Rev. C26, 1748 (1982)

G.Garcia Bermudez, C.Baktash, O.Kistner

Collective States in the Doubly Odd 72Br Nucleus

NUCLEAR REACTIONS 58Ni(16O, np), E=50 MeV; measured DSA, recoil, Eγ. 72Br levels deduced T1/2, γ-branching, B(E2).

doi: 10.1103/PhysRevC.26.1748
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1981BE37      Nucl.Phys. A366, 61 (1981)

M.Behar, A.Filevich, G.Garcia Bermudez, M.A.J.Mariscotti, E.Ventura

High-Spin States in 49Ti and the Empirical (f7/2(n)) Model

NUCLEAR REACTIONS 48Ca(α, 3n), E=30-55 MeV; measured σ(E, Eγ, θ, t), Eγ, Iγ, γγ-coin. 49Ti deduced levels, J, T1/2, δ. Enriched 48Ca target, Ge(Li) detector.

doi: 10.1016/0375-9474(81)90487-5
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1981GA11      Phys.Rev. C23, 2024 (1981)

G.Garcia Bermudez, A.Filevich, A.J.Kreiner, M.A.J.Mariscotti, C.Baktash, E.der Mateosian, P.Thieberger

High Spin States in 74Br

NUCLEAR REACTIONS 60Ni(16O, np), E=40-55 MeV; measured Eγ, Iγ(θ, t), γγ(t). 74Br deduced levels, J, π, T1/2. Enriched target, Ge(Li) detector.

doi: 10.1103/PhysRevC.23.2024
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1981KR20      Phys.Rev.Lett. 47, 1709 (1981)

A.J.Kreiner, C.Baktash, G.Garcia Bermudez, M.A.J.Mariscotti

Evidence for Predicted Level Crossings in π(h9/2) x ν(i13/2) Bands in very Neutron-Deficient, Doubly Odd T1 Isotopes

NUCLEAR REACTIONS 168Er(27Al, 5n), E=130-160 MeV; 169Tm(25Mg, 4n), E=120 MeV; 176Hf(19F, 5n), E=85-120 MeV; 169Tm(24Mg, 5n), E=115-135 MeV; 159Tb(32S, 5n), E=160-165 MeV; 155Gd(35Cl, 4n), E=155-170 MeV; measured σ(Eγ), γ(θ), γγ-coin, I(K X-ray). 186,188,190Tl deduced levels, J, π, isomer T1/2, ICC, γ-multipiolarity, configuration. Anti-Compton shield, Ge(Li) detector, pulsed beam.

doi: 10.1103/PhysRevLett.47.1709
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1980BE08      Nucl.Phys. A337, 253 (1980)

M.Behar, A.Filevich, G.Garcia Bermudez, M.A.J.Mariscotti, L.Szybisz

Level Structure of 82Rb, Studied Through the 81Br(α, 3n) Reaction

NUCLEAR REACTIONS 81Br(α, 3n), E=30-55 MeV; measured σ(E, Eγ, θ, t), Eγ, Iγ, γγ-coin. 82Rb deduced levels, J, T1/2. Enriched target.

doi: 10.1016/0375-9474(80)90054-8
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1980GA11      J.Phys.(London) G6, L89 (1980)

G.Garcia Bermudez, D.Abriola, M.Behar, M.C.Berisso, J.Fernandez Niello, A.Filevich, M.A.J.Mariscotti

High-Spin States in 78Br

NUCLEAR REACTIONS 77Se(α, 2np), E=30-55 MeV; measured Eγ, Iγ, T1/2, γγ-coin, γ(θ). 78Br deduced levels, J, π, γ-branching, ICC.

doi: 10.1088/0305-4616/6/4/007
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1980KR02      Phys.Rev. C21, 933 (1980)

A.J.Kreiner, A.Filevich, G.Garcia Bermudez, M.A.J.Mariscotti, C.Baktash, E.der Mateosian, P.Thieberger

High-Spin Band Structure of 192Tl

NUCLEAR REACTIONS 181Ta(18O, xnγ), E=105-125 MeV; 181Ta(16O, xnγ), E=95-105 MeV; measured Eγ, Iγ, σ(E, Eγ, θγ), γγ-coin. 192Tl levels deduced δ, J, π, T1/2. Natural target. Ge(Li) detectors.

doi: 10.1103/PhysRevC.21.933
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1979KR04      Phys.Lett. 83B, 31 (1979)

A.J.Kreiner, G.Garcia Bermudez, M.A.J.Mariscotti, P.Thieberger

Long-Lived Positive Parity Isomer in 76Br

NUCLEAR REACTIONS 75As(α, 3n), E not given; measured Iγ(t). 76Br deduced level, T1/2, J, π.

doi: 10.1016/0370-2693(79)90881-5
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1979MA09      Phys.Rev. C19, 1301 (1979)

M.A.J.Mariscotti, G.Garcia Bermudez, J.C.Acquadro, A.Lepine, M.N.Rao, W.Seale, E.der Mateosian, P.Thieberger

Band Structure in 78Rb

NUCLEAR REACTIONS 64Zn(16O, np), E=44, 50 MeV; measured Iγ, Eγ, γγ-coin, σ(Eγ, θ). 78Rb deduced levels, band structure. Enriched target.

doi: 10.1103/PhysRevC.19.1301
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1978BE08      Phys.Rev. C17, 516 (1978)

M.Behar, A.Filevich, G.Garcia Bermudez, M.A.J.Mariscotti

Evidence for the First 9/2+ State in 75Br and Maximum Deformation at N ≈ 42

NUCLEAR REACTIONS 75As(α, 4nγ), E=30-55 MeV; measured σ(E, Eγ, θ), γ(t), γγ-coin. 75Br deduced levels, J, π, T1/2. Ge(Li) detectors.

doi: 10.1103/PhysRevC.17.516
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1978BE34      Nucl.Instrum.Methods 152, 531 (1978)

M.Behar, A.Filevich, G.Garcia Bermudez, M.A.J.Mariscotti, J.Monico, J.Sinderman, S.Tau

Digital Multidiscriminator for Use in Gamma-Gamma Coincidence Experiments

NUCLEAR REACTIONS 70Ge(α, np), E=30-55 MeV; measured γγ-coin. 72As deduced levels.

doi: 10.1016/0029-554X(78)90055-1
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1978DA13      Nucl.Phys. A306, 113 (1978)

M.Davidson, J.Davidson, M.Behar, G.Garcia Bermudez, M.A.J.Mariscotti

High Spin States in 89Y

NUCLEAR REACTIONS 87Rb(α, 2nγ), E=30-55 MeV; measured Eγ, Iγ, σ(Eα, Eγ, θ(γ)), γγ-coin. 89Y deduced levels, J, π. Ge(Li) detector.

doi: 10.1016/0375-9474(78)90315-9
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1978FI09      Nucl.Phys. A309, 285 (1978)

A.Filevich, M.Behar, G.Garcia Bermudez, M.A.J.Mariscotti, E.der Mateosian, P.Thieberger

In-Beam Study of 70As

NUCLEAR REACTIONS 69Ga(α, 3nγ), 60Ni(12C, np), 63Cu(10B, 2np), E=30-55 MeV; measured σ(E, Eγ, θ, t), Eγ, Iγ, γγ-coin. 70As deduced levels, J, T1/2. Enriched 69Ga, 60Ni, 63Cu targets. Ge(Li) detectors.

doi: 10.1016/0375-9474(78)90549-3
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1977BE18      Nucl.Phys. A282, 331 (1977)

M.Behar, A.Filevich, G.Garcia Bermudez, M.A.J.Mariscotti

Level Structure of 76Br from the 75As(α, 3nγ) Reaction

NUCLEAR REACTIONS 75As(α, 3nγ), E=30-55 MeV; measured σ(E, Eγ, θ, t). 76Br deduced levels, J, π, λ, δ.

doi: 10.1016/0375-9474(77)90219-6
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1977BE38      Phys.Rev. C16, 1590 (1977)

M.Behar, A.Filevich, G.Garcia Bermudez, C.Alonso Arias

Level Spins and Multipole Mixing Ratios of the Transitions in 94Mo

RADIOACTIVITY 94Tc [from 93Nb(α, 3n)]; measured L(p), γγ(θ). 94Mo levels deduced J, π, δ. Ge(Li), NaI(Tl) detectors.

doi: 10.1103/PhysRevC.16.1590
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1977BE41      Nucl.Phys. A287, 255 (1977)

M.Behar, A.Filevich, G.Garcia Bermudez, M.A.J.Mariscotti

Level Structure of 80Rb Studied with the 79Br(α, 3n) Reaction

NUCLEAR REACTIONS 79Br(α, 3n), E=30 to 55 MeV; measured Eγ, Iγ, γ(θ), γγ-coin. 80Rb deduced levels, J, π, δ, Q. Enriched target. Ge(Li) detectors.

doi: 10.1016/0375-9474(77)90495-X
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1977FI14      Nucl.Instrum.Methods 141, 521 (1977)

A.Filevich, M.Behar, G.Garcia Bermudez

Gamma-Gamma Polarized Directional Correlations Set-up Using a Planar Ge(Li) Detector as the Polarimeter

RADIOACTIVITY 124I; measured γγ(θ). 124Te level deduced J, π.

doi: 10.1016/0029-554X(77)90648-6
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1977RO08      Phys.Rev. C15, 1671 (1977)

R.M.Ronningen, J.H.Hamilton, A.V.Ramayya, L.Varnell, G.Garcia-Bermudez, J.Lange, W.Lourens, L.L.Riedinger, R.L.Robinson, P.H.Stelson, J.L.C.Ford, Jr.

Reduced Transition Probabilities of Vibrational States in 154-160Gd and 176-180Hf

NUCLEAR REACTIONS 154,156,158,160Gd, 176,178,180Hf(α, α'), E=11-17 MeV; measured σ(E, Eα', θ), Coulomb excitation. 154,156,158,160Gd, 176,178,180Hf levels deduced B(λ), M(λ). Enriched targets.

doi: 10.1103/PhysRevC.15.1671
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1977RO26      Phys.Rev. C16, 2208 (1977)

R.M.Ronningen, J.H.Hamilton, L.Varnell, J.Lange, A.V.Ramayya, G.Garcia-Bermudez, W.Lourens, L.L.Riedinger, F.K.McGowan, P.H.Stelson, R.L.Robinson, J.L.C.Ford, Jr.

E2 and E4 Reduced Matrix Elements of 154,156,158,160Gd and 176,178,180Hf

NUCLEAR REACTIONS 154,156,158,160Gd, 176,178,180Hf(α, α'), E=11.5-14 MeV; measured Coulomb excitation σ(E). 154,156,158,160Gd, 176,178,180Hf levels deduced β2, β4.

doi: 10.1103/PhysRevC.16.2208
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1976BE03      Phys.Rev. C13, 767 (1976)

M.Behar, G.Garcia Bermudez, A.Filevich, M.C.Cambiaggio

Spin of the 1248- and 1958-keV Levels in 124Te Determined from Gamma-Gamma Directional and Polarization-Directional Correlations

RADIOACTIVITY 124Sb; measured γγ-linear polarization, γγ(θ). 124Te levels deduced J, π, δ. Ge(Li) detectors.

doi: 10.1103/PhysRevC.13.767
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1976BE15      Nucl.Phys. A261, 317 (1976)

M.Behar, A.Filevich, G.Garcia Bermudez, A.M.Hernandez, M.A.J.Mariscotti

Level Structure of 73Se from the 72Ge(α, 3nγ) Reaction

NUCLEAR REACTIONS 72Ge(α, 3nγ), E=30-55 MeV; measured σ(E, Eγ, θ), γγ-coin. 73Se deduced levels, J, π, λ, γ-branching. Enriched Ge target. Ge(Li) detector.

doi: 10.1016/0375-9474(76)90573-X
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1976GA12      Phys.Rev. C13, 2461 (1976)

G.Garcia Bermudez, A.Filevich, M.Behar

Spins of the 2350, 2516, and 2547 keV Levels in 140Ce Determined from γ-γ Directional and Polarization-Directional Correlations

RADIOACTIVITY 140La; measured γγ(θ), linear polarization correlation. 140Ce levels deduced J, π, δ. Ge(Li) detectors.

doi: 10.1103/PhysRevC.13.2461
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1976GA23      Phys.Rev. C14, 1776 (1976)

G.Garcia Bermudez, M.Behar, A.Filevich, M.A.J.Mariscotti

Level Structure of 74As from the 72Ge(α, npγ) Reaction

NUCLEAR REACTIONS 72Ge(α, npγ), E=30-55 MeV; measured σ(E, Eγ, θ), γγ-coin, γ(t). 74As deduced levels, J, π, T1/2. Ge(Li) detectors, enriched targets.

doi: 10.1103/PhysRevC.14.1776
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1976HA25      Izv.Akad.Nauk SSSR, Ser.Fiz. 40, 2 (1976); Bull.Acad.Sci.USSR, Phys.Ser. 40, No.1, 1 (1976)

J.H.Hamilton, K.R.Baker, C.R.Bingham, E.L.Bosworth, H.K.Carter, J.D.Cole, R.W.Fink, G.Garcia Bermudez, G.W.Gowdy, K.J.Hofstetter, M.A.Ijaz, A.C.Kahler, B.D.Kern, W.Lourens, B.Martin, R.L.Mlekodaj, A.V.Ramayya, L.L.Riedinger, W.D.Schmidt-Ott, E.H.Spejewski, B.N.Subba Rao, E.L.Robinson, K.S.Toth, F.Turner, J.L.Weil, J.L.Wood, A.Xenoulis, E.F.Zganjar

New Isotope 193Pb and the Structure of 193Tl; Shape Coexistence in 188Hg and in 189Au; and a New Ion Source: Recent UNISOR Research

RADIOACTIVITY 193Pb; measured T1/2, Eγ, Iγ, γγ-coin. 188Tl; measured Eγ, Iγ, γγ-coin, I(ce), γce-coin. 189Tl, 189Hg; measured Eγ, Iγ, γγ-, γX-, γce-coin. 188,189Hg, 193Tl deduced levels, J, π, shape isomers.


1976MA20      Nucl.Phys. A260, 109 (1976)

M.A.J.Mariscotti, M.Behar, A.Filevich, G.Garcia Bermudez, A.M.Hernandez, C.Kohan

Level Structure of 72As Studied with the (α, xnp) Reaction

NUCLEAR REACTIONS 70Ge(α, npγ), 72Ge(α, 3npγ), E=30-55 MeV; measured Eγ, Iγ, σ(E, Eγ, θ, t), γγ-coin. 72As deduced levels, J, π, T1/2. Enriched Ge targets. Ge(Li) detector.

doi: 10.1016/0375-9474(76)90019-1
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1975CA37      Z.Phys. A275, 183 (1975)

M.C.Cambiaggio, G.Garcia Bermudez, M.Behar

The Spin of the 2.198 keV Level in 74Ge and Multipole Mixing Ratios of Gamma Transitions in the Decay of 74As

RADIOACTIVITY 74As; measured γγ(θ), Eγ. 74Ge levels deduced δ, γ-branching, quadrupole moment, B(E2) ratios.

doi: 10.1007/BF01409595
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1975HA27      Phys.Rev.Lett. 35, 562 (1975)

J.H.Hamilton, A.V.Ramayya, E.L.Bosworth, W.Lourens, J.D.Cole, B.Van Nooijen, G.Garcia-Bermudez, B.Martin, B.N.Subba Rao, H.Kawakami, L.L.Riedinger, C.R.Bingham, F.Turner, E.F.Zganjar, E.H.Spejewski, H.K.Carter, R.L.Mlekodaj, W.D.Schmidt-Ott, K.R.Baker, R.W.Fink, G.M.Gowdy, J.L.Wood, A.Xenoulis, B.D.Kern, K.J.Hofstetter, J.L.Weil, K.S.Toth, M.A.Ijaz, K.F.R.Faftry

Crossing of Near-Spherical and Deformed Bands in 186,188Hg and New Isotopes 186,188Tl

RADIOACTIVITY 186,188Tl [from 181Ta(16O, 9nγ), (16O, 11nγ), E=143-145 MeV]; measured T1/2, Eγ, Iγ, γce-, γγ-coin, γ(t); deduced ICC. 186,188Hg deduced levels, J, π, K.

doi: 10.1103/PhysRevLett.35.562
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1975QU02      Z.Phys. A274, 173 (1975)

L.M.Quinones, M.Behar, Z.W.Grabowski, M.C.Cambiaggio, G.Garcia Bermudez, E.S.Hernandez

Multipole Mixing Ratios of Transitions in 175Lu Populated from the Decay of 175Hf

RADIOACTIVITY 175Hf; measured γγ(θ). 175Lu transitions deduced δ.

doi: 10.1007/BF01408470
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1975RA40      Phys.Rev. C 12, 1360 (1975)

A.V.Ramayya, R.M.Ronningen, J.H.Hamilton, W.T.Pinkston, G.Garcia-Bermudez, R.L.Robinson, H.J.Kim, H.K.Carter, W.E.Collins

Mean life and collective effects of the 937 keV, 0+ state in 72Se: Evidence for nuclear coexistence

RADIOACTIVITY 72Br(EC), (β+) [from 58Ni(16O, np), E=46 MeV]; measured Eγ, Iγ, γγ-coin, isomer T1/2 by γ(t) at the ORNL tandem Van de Graaff accelerator. 72Se; deduced levels, J, π, B(E2), E0/E2, monopole transition strength ρ(E0), shape coexistence.

doi: 10.1103/PhysRevC.12.1360
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1974GA05      Phys.Rev. C9, 1060 (1974)

G.Garcia-Bermudez, S.L.Gupta, N.C.Singhal, A.V.Ramayya, J.Lange, J.H.Hamilton, N.R.Johnson

Search for Closed-Shell Effects on the E2/M1 Mixing of Transitions in 116Sn

RADIOACTIVITY 116mIn; measured Iγ, γγ(θ). 116Sn levels deduced γ-branching, γ-mixing.

doi: 10.1103/PhysRevC.9.1060
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1974GU01      Nucl.Phys. A221, 541 (1974)

S.L.Gupta, G.Garcia-Bermudez, J.Lange, J.H.Hamilton, A.V.Ramayya, N.C.Singhal, K.R.Baker, N.R.Johnson

Spin of the 1082.8 keV Level in 152Sm

RADIOACTIVITY 152mEu [from 151Eu(n, γ)]; measured γγ(θ). 152Sm level deduced J. NaI-Ge(Li), Ge(Li)-Ge(Li) systems.

doi: 10.1016/0375-9474(74)90480-1
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1974HA04      Phys.Rev.Lett. 32, 239 (1974)

J.H.Hamilton, A.V.Ramayya, W.T.Pinkston, R.M.Ronningen, G.Garcia-Bermudez, H.K.Carter, R.L.Robinson, H.J.Kim, R.O.Sayer

Evidence for Coexistence of Spherical and Deformed Shapes in 72Se

RADIOACTIVITY 72Br; measured γγ(t). 72Se level deduced T1/2.

NUCLEAR REACTIONS 58Ni(16O, 2pγ), E not given; measured Eγ, Iγ, γ(θ), γγ-coin. 72Se deduced levels, J, π.

doi: 10.1103/PhysRevLett.32.239
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1974HA10      Izv.Akad.Nauk SSSR, Ser.Fiz. 38, 2036 (1974); Bull.Acad.Sci.USSR, Phys.Ser. 38, No.10, 22 (1974)

J.H.Hamilton, E.H.Spejewski, R.L.Mlekodaj, W.-D.Schmidt-Ott, R.W.Fink, A.Xenoulis, K.R.Baker, J.L.Wood, G.Gowdy, H.K.Carter, B.D.Kern, K.J.Hofstetter, J.L.Weil, E.F.Zganjar, K.S.R.Sastry, F.T.Avignone, C.R.Bingham, L.L.Riedinger, L.Harwood, F.Turner, I.A.Sellin, D.J.Pegg, J.Lin, A.V.Ramayya, S.Lee, G.Garcia-Bermudez, E.Bosworth, K.S.Toth, N.R.Johnson

Initial UNISOR Research: New Isotopes 186Tl, 188Tl, 116I; Decays of 189,190Tl, 117Xe, and 117I; and Off-Line Atomic and Nuclear Studies

RADIOACTIVITY 116,117Xe, 116,117I, 186,188,189,190Tl; measured T1/2, Eγ, Iγ, γγ, Eβ; deduced Q(β). 126I measured γγ(θ, H). 117I, 116Te, 188,190Hg deduced levels, J, π. 126Xe level deduced g. On-line isotope separator UNISOR.


1973BO43      Can.J.Phys. 51, 2260 (1973)

H.E.Bosch, M.Behar, M.C.Cambiaggio, G.Garcia Bermudez, L.Szybisz

Investigation of the 0- → 0+ and 0- → 2+ Beta Transitions in the Decay of 144Pr

RADIOACTIVITY 56Mn, 114In, 144Pr; measured Eβ, βγ-coin. Deduced shape factor.

doi: 10.1139/p73-295
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1971BO19      Lett.Nuovo Cim. 2, 681 (1971)

H.E.Bosch, M.Behar, M.C.Cambiaggio, G.Garcia Bermudez, L.Szybisz, F.Krmpotic

Nuclear Matrix Elements for the (7/2)- → (7/2)+ Beta Transition in 141Ce

RADIOACTIVITY 141Ce(β-); measured β-spectrum shape factor, βγ(θ) anisotropy. 141Pr level deduced β-transition matrix elements.

doi: 10.1007/BF02799241
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