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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, T_1/2, 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 T_1/2, 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 T_1/2, 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 T_1/2, 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 T_1/2, 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, T_1/2, 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

πg_9/2 (x) νg_9/2 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 T_1/2, 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 T_1/2, 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 T_1/2. 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, T_1/2. 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, T_1/2; 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, T_1/2. 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 T_1/2, 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 (f_7/2(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, T_1/2, 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, T_1/2. 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 T_1/2, 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, T_1/2. 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, T_1/2, 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, T_1/2. 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, T_1/2, 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, T_1/2. 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, T_1/2. 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 ^{154,156,158,160}Gd, ^176,178,180Hf(α, α'), E=11-17 MeV; measured σ(E, Eα', θ), Coulomb excitation. ^{154,156,158,160}Gd, ^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 ^{154,156,158,160}Gd and ^176,178,180Hf

NUCLEAR REACTIONS ^{154,156,158,160}Gd, ^176,178,180Hf(α, α'), E=11.5-14 MeV; measured Coulomb excitation σ(E). ^{154,156,158,160}Gd, ^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, T_1/2. 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 T_1/2, 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, T_1/2. 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 T_1/2, 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 T_1/2 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 T_1/2.

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, ^{186,188,189,190}Tl; measured T_1/2, 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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