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Search: Author = D.G.Popescu

Found 39 matches.

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1997PO02      Phys.Rev. C55, 1175 (1997)

D.G.Popescu, J.C.Waddington, J.A.Cameron, J.K.Johansson, N.C.Schmeing, W.Schmitz, M.P.Carpenter, V.P.Janzen, J.Nyberg, L.L.Riedinger, H.Hubel, G.Kajrys, S.Monaro, S.Pilotte, C.Bourgeois, N.Perrin, H.Sergolle, D.Hojman, A.Korichi

High-Spin States and Band Structures in 182Pt

NUCLEAR REACTIONS 170Yb(16O, 4n), E=95 MeV; 162Dy(24Mg, 4n), E=129 MeV; 163Dy(24Mg, 5n), E=129 MeV; measured Eγ, Iγ, γγ-coin, DCO ratios. 182Pt deduced high-spin levels, J, π, δ, B(λ) ratios. Enriched targets, Compton-suppressed hyperpure Ge detector array, 4π BGO ball. Cranked shell model routhians, total routhian surfaces.

doi: 10.1103/PhysRevC.55.1175
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Data from this article have been entered in the XUNDL database. For more information, click here.


1995PA33      Nucl.Phys. A594, 1 (1995)

W.E.Parker, M.Kaplan, D.J.Moses, J.M.Alexander, R.A.Lacey, D.M.de Castro Rizzo, J.Boger, A.Narayanan, G.F.Peaslee, D.G.Popescu

Coincidence Correlations between Light Charged Particles in the Matched Reactions 905 and 1030 MeV 121Sb + 27Al and 550 and 750 MeV 86Kr + 63Cu

NUCLEAR REACTIONS 27Al(121Sb, X), E=905, 1030 MeV; 63Cu(86Kr, X), E=550, 750 MeV; measured energy spectra, angular correlations of α/p in coincidence with α/p; deduced light particle production σ, mean emission chain lengths associated with evaporation residues. Characterized emitters. Comparisons made for matched reactions.

doi: 10.1016/0375-9474(95)00339-3
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1994ME03      J.Phys.(London) G20, L7 (1994)

Z.Meliani, J.S.Dionisio, G.E.Korner, D.G.Popescu, C.Schuck, Ch.Vieu, G.Duchene, J.C.Merdinger, N.Bendjaballah

High-Spin States of the Magic Neutron Nucleus 147Tb

NUCLEAR REACTIONS 120Sn(31P, 4n), E=140, 150 MeV; measured γγ-, (ce)γ-coin. 147Tb deduced levels, J, π, γ-multipolarity. Model comparison.

doi: 10.1088/0954-3899/20/1/002
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1993PE17      Z.Phys. A347, 81 (1993)

N.Perrin, A.Korichi, C.Bourgeois, F.Azaiez, J.Duprat, F.Ibrahim, D.Hojman, F.Le Blanc, D.G.Popescu, H.Sergolle

Relative Population of Oblate and Prolate Structures in 189Au

NUCLEAR REACTIONS, ICPND 174Yb(19F, 4n), E=86-100 MeV; measured γγ-coin, sum energy-coin. 174Yb(19F, 3n), (19F, 5n), E=86-100 MeV; measured residuals production σ vs E. 189Au deduced levels, J, π, band structure, oblate, prolate structure relative population.

doi: 10.1007/BF01284673
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1992BO23      Z.Phys. A343, 243 (1992)

C.Bourgeois, A.Korichi, N.Perrin, D.G.Popescu, F.Azaiez, D.Hojman, H.Sergolle, G.Bastin

High Spin States of 189Au

NUCLEAR REACTIONS 174Yb(19F, 4n), E=86-100 MeV; measured γγ-matricies, DCO correlations. 189Au deduced levels, J, π, γ-branching.

doi: 10.1007/BF01291830
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1992JA01      Phys.Rev. C45, 613 (1992)

V.P.Janzen, Z.-M.Liu, M.P.Carpenter, L.H.Courtney, H.-Q.Jin, A.J.Larabee, L.L.Riedinger, J.K.Johansson, D.G.Popescu, J.C.Waddington, S.Monaro, S.Pilotte, F.Donau

Prolate and Oblate Band Structures in Odd-Odd 186,188Au

NUCLEAR REACTIONS 171,173Yb(19F, 4n), E=93-94 MeV; measured γγ-coin, γ(θ), γγ(t), Iγ. 186,188Au deduced levels, J, π, T1/2, rotational bands, configurations, B(λ) ratios.

doi: 10.1103/PhysRevC.45.613
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1992KO10      Z.Phys. A343, 15 (1992)

A.Korichi, N.Perrin, C.Bourgeois, D.Hojman, D.G.Popescu, H.Sergolle, F.Hannachi, M.G.Porquet

Relative Population of the Oblate and Prolate Structures in 187Au

NUCLEAR REACTIONS 172Yb(19F, 4n), E=90-100 MeV; measured γγ-coin, sum energy coincidence, Iγ. 187Au deduced levels, J, π, branching, shape features.

doi: 10.1007/BF01291591
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1991BA20      Phys.Rev. C43, 2082 (1991)

D.P.Balamuth, U.J.Huttmeier, T.Chapuran, D.G.Popescu, J.W.Arrison

In-Beam γ-Ray Spectroscopy of the N = Z + 1 Nucleus 63Ga

NUCLEAR REACTIONS 40Ca(28Si, pα); 40Ca(32S, p2α); 40Ca(29Si, npα), E=80-100 MeV; measured αpγ-coin, nγ(θ), nγγ(θ). 63Ga deduced levels, Jπ, δ, branching ratios.

doi: 10.1103/PhysRevC.43.2082
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1991CA30      Phys.Rev. C44, 2358 (1991)

J.A.Cameron, D.G.Popescu, J.C.Waddington

High-Spin States in 48V, 51Cr, and 51Mn

NUCLEAR REACTIONS 40Ca(14N, X), E=40 MeV; 27Al(27Al, X), E=90 MeV; measured γγ-coin, γ(θ). 51Cr, 48V, 51Mn deduced levels, J, π. Model comparison.

doi: 10.1103/PhysRevC.44.2358
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1991LE21      Phys.Rev.Lett. 67, 1078 (1991)

J.P.Lestone, J.R.Leigh, J.O.Newton, D.J.Hinde, J.X.Wei, J.X.Chen, S.Elfstrom, D.G.Popescu

Fission Time Scales from Prescisson Charged-Particle Multiplicities

NUCLEAR REACTIONS 164,167,170Er(28Si, X), E=140-185 MeV; measured proton, α-spectra, multiplicities; deduced reaction mechanism. 192,195,198Pb deduced fission characteristics.

doi: 10.1103/PhysRevLett.67.1078
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1991WE19      Nucl.Instrum.Methods Phys.Res. A306, 557 (1991)

J.X.Wei, J.R.Leigh, D.C.Weisser, J.O.Newton, S.Elfstrom, J.P.Lestone, J.X.Chen, D.G.Popescu, D.J.Hinde

A Compact Velocity Filter for Evaporation Residue Measurements

NUCLEAR REACTIONS 130Te(28Si, X), E=100-160 MeV; 170Er(16O, X), E=110 MeV; 176Yb(16O, X), E=100 MeV; 186W(16O, X), E=70 MeV; 154Sm(16O, X), E=60 MeV; measured σ(evaporation residue θ). Velocity filter.

doi: 10.1016/0168-9002(91)90052-R
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1990CA22      Nucl.Phys. A513, 125 (1990)

M.P.Carpenter, C.R.Bingham, L.H.Courtney, V.P.Janzen, A.J.Larabee, Z.-M.Liu, L.L.Riedinger, W.Schmitz, R.Bengtsson, T.Bengtsson, W.Nazarewicz, J.-Y.Zhang, J.K.Johansson, D.G.Popescu, J.C.Waddington, C.Baktash, M.L.Halbert, N.R.Johnson, I.Y.Lee, Y.S.Schutz, J.Nyberg, A.Johnson, R.Wyss, J.Dubuc, G.Kajrys, S.Monaro, S.Pilotte, K.Honkanen, D.G.Sarantites, D.R.Haenni

Alignment Processes and Shape Variation in 184Pt

NUCLEAR REACTIONS 154Sm(34S, 4n), E=163 MeV; 172Yb(16O, 4n), E=91 MeV; measured Eγ, Iγ, γ(θ), γγ-coin. 184Pt deduced levels, J, π, γ-branching. Enriched targets, array of Compton-suppression Ge detectors. Total routhian surface calculations.

doi: 10.1016/0375-9474(90)90346-N
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1990DR03      Nucl.Phys. A510, 533 (1990)

G.D.Dracoulis, B.Fabricius, R.A.Bark, A.E.Stuchbery, D.G.Popescu, T.Kibedi

Intrinsic States and Rotational Bands in 177Pt

NUCLEAR REACTIONS 149Sm(32S, 4n), E=163 MeV; measured γγ-coin, γ(θ), γγ(t). 177Pt deduced levels, J, π, T1/2, quasiparticle states, configurations, rotational bands, alignments, B(M1)/B(E2) ratios. Particle-rotor, cranked shell model analyses.

doi: 10.1016/0375-9474(90)90065-T
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1990NE09      Phys.Rev. C42, 1772 (1990)

J.O.Newton, D.G.Popescu, J.R.Leigh

Inclusion of Temperature Dependence of Fission Barriers in Statistical Model Calculations

NUCLEAR REACTIONS, ICPND 181Ta, 159Tb(19F, F), E ≈ 80-120 MeV; calculated fission σ(E). Statistical model, fission barrier temperature dependence from data.

NUCLEAR STRUCTURE A=109-240; calculated zero temperature fission barriers.

doi: 10.1103/PhysRevC.42.1772
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1990NY02      Nucl.Phys. A511, 92 (1990)

J.Nyberg, A.Johnson, M.P.Carpenter, C.R.Bingham, L.H.Courtney, V.P.Janzen, S.Juutinen, A.J.Larabee, Z.-M.Liu, L.L.Riedinger, C.Baktash, M.L.Halbert, N.R.Johnson, I.Y.Lee, Y.Schutz, J.C.Waddington, D.G.Popescu

High-Spin States in 183Pt

NUCLEAR REACTIONS 154Sm(34S, 5n), E=153 MeV; 170Yb(16O, 3n), E=81-84 MeV; measured Eγ, Iγ(θ), Iγ, γγ(t), γγ(X-ray)-coin. 183Pt deduced levels, J, π, δ. Enriched targets, Ge(Compton suppressed) detectors, 4π NaI(Tl) ball. Calculated experimental routhians, aligned angular momentum, signature splitting, total routhian surfaces.

doi: 10.1016/0375-9474(90)90028-K
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1989AR13      Phys.Rev. C40, 2010 (1989)

J.W.Arrison, D.P.Balamuth, T.Chapuran, D.G.Popescu, J.Gorres, U.J.Huttmeier

Structure of the N = Z + 1 Nucleus 69Se

NUCLEAR REACTIONS 40Ca(32S, n2p), E=101 MeV; measured pγ-, γγ-, nγγ-, pnγ-coin, γ(θ). 69Se deduced levels, T1/2, possible J, π, δ.

doi: 10.1103/PhysRevC.40.2010
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1989JA02      Phys.Rev. C39, 2050 (1989)

V.J.Janzen, M.P.Carpenter, L.L.Riedinger, W.Schmitz, D.G.Popescu, J.A.Cameron, J.K.Johansson, D.D.Rajnauth, J.C.Waddington, G.Kajrys, S.Monaro, S.Pilotte

Rotational Bands and Band Crossings in 119Xe

NUCLEAR REACTIONS 95Mo(27Al, 2np), E=105 MeV; measured Eγ, Iγ, γγ-coin, γ(θ). 119Xe deduced levels, J, π, B(λ) ratios. Enriched target, Ge detectors. Cranked shell model calculations.

doi: 10.1103/PhysRevC.39.2050
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1989JO02      Phys.Rev. C40, 132 (1989)

J.K.Johansson, D.G.Popescu, D.D.Rajnauth, J.C.Waddington, M.P.Carpenter, L.H.Courtney, V.P.Janzen, A.J.Larabee, Z.M.Liu, L.L.Riedinger

Shape Coexistence in 187Au

NUCLEAR REACTIONS 172Yb(19F, 4n), E=95 MeV; measured γγ-coin, γ(θ), γγ(t). 187Au deduced levels, J, π, T1/2, band structure, shape.

doi: 10.1103/PhysRevC.40.132
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1989PI09      Phys.Rev. C40, 610 (1989)

S.Pilotte, G.Kajrys, S.Monaro, M.P.Carpenter, V.P.Janzen, L.L.Riedinger, J.K.Johansson, D.G.Popescu, D.D.Rajnauth, J.C.Waddington

Quasiparticle Nature of Rotational Bands in 185Pt

NUCLEAR REACTIONS 173Yb(16O, 4n), E=90 MeV; measured Eγ, Iγ, γγ-coin, Iγ(θ). 185Pt deduced levels, J, π, δ, B(λ). Enriched target, Ge detectors. Crank shell model.

doi: 10.1103/PhysRevC.40.610
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1988JA10      Phys.Rev.Lett. 61, 2073 (1988)

V.P.Janzen, M.P.Carpenter, L.L.Riedinger, W.Schmitz, S.Pilotte, S.Monaro, D.D.Rajnauth, J.K.Johansson, D.G.Popescu, J.C.Waddington, Y.S.Chen, F.Donau, P.B.Semmes

Evidence for a Low-Frequency πh9/2 Band Crossing in 185Pt and 183Ir

NUCLEAR REACTIONS 173Yb(16O, 4n), E=90 MeV; 168Er(19F, 4n), E=85 MeV; measured γγ-coin. 185Pt, 183Ir deduced levels, J, π, γ-branching, B(λ) ratio, band crossing. Cranked shell model.

NUCLEAR STRUCTURE 185Pt, 183Ir; calculated levels, B(λ). Cranked shell model.

doi: 10.1103/PhysRevLett.61.2073
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1984AR08      Rev.Roum.Phys. 29, 139 (1984)

A.G.Artukh, G.F.Gridnev, M.Gruszecki, W.Karcz, A.N.Mezentsev, V.L.Mikheev, L.Pomorski, A.Popescu, D.G.Popescu, V.V.Volkov

The Formation of Alpha Particles in the System (nat)Ag + 40Ar (285 MeV)

NUCLEAR REACTIONS Ag(40Ar, pX), (40Ar, dX), (40Ar, tX), (40Ar, αX), E=285 MeV; measured αα-coin, inclusive σ(θ, Ep), σ(θ, Ed), σ(θ, Et), σ(θ, Eα), σ(light fragment θ). Ag(40Ar, BX), (40Ar, CX), (40Ar, BeX), E=285 MeV; measured σ(light fragment θ).


1983AR20      Yad.Fiz. 38, 549 (1983)

A.G.Artyukh, V.V.Avdeichikov, G.F.Gridnev, M.Gruszecki, W.Karcz, A.N.Mezentsev, V.L.Mikheev, V.M.Morozov, L.Pomorski, A.Popescu, D.G.Popescu, V.V.Volkov

Two-α-Particle Correlations in 40Ar + (nat)Ag Interaction at 285 MeV

NUCLEAR REACTIONS Ag(40Ar, 2α), E=285 MeV; measured αα-coin, σ(θα1, θα2); deduced α-production, massive nuclear transfer mechanisms.


1981AR20      Z.Phys. A303, 41 (1981)

A.G.Artukh, G.F.Gridnev, M.Gruszecki, W.Karcz, A.N.Mezentsev, V.L.Mikheev, L.Pomorski, A.Popescu, D.G.Popescu, V.V.Volkov

Multi-Nucleon Transfer Reactions and the Formation of Light Charged Particles in the System Ag(nat) + 40Ar (285 MeV)

NUCLEAR REACTIONS Ag(40Ar, X), (40Ar, p), (40Ar, d), (40Ar, t), (40Ar, α), E=300 MeV; measured σ(θ, Ep), σ(θ, Ed), σ(θ, Et), σ(θ, Eα), σ(θ, fragment E) for Li, C, Na, Si, Cl, Be, B; deduced multinucleon transfer contribution, two-body (Q) systematics.

doi: 10.1007/BF01420009
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1981PO09      Phys.Lett. 101B, 15 (1981)

A.Popescu, D.G.Popescu

Regularities of Deep Inelastic Transfer Reactions with the 40Ar Projectile

NUCLEAR REACTIONS 58Ni(40Ar, X), E=280 MeV; 107,109Ag(40Ar, X), E=285 MeV; analyzed data; deduced isospin systematics in deep inelastic transfer.

doi: 10.1016/0370-2693(81)90479-2
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1980CR04      Nucl.Phys. A344, 249 (1980)

T.Cretu, D.Bogdan, D.G.Popescu

The Allowed Hindered (ΔN=2) Positron Decay in 169Lu

RADIOACTIVITY 169Lu; calculated log ft. Allowed hindered decay, Woods-Saxon wave functions, β2, β4 deformations.

doi: 10.1016/0375-9474(80)90675-2
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1980MA01      J.Phys.(London) G6, 221 (1980)

M.T.Magda, A.Sandulescu, D.G.Popescu, W.Greiner

Heavy-Ion Fusion and the Production of Elements 103, 105 and 107

NUCLEAR REACTIONS 203Tl(50Ti, X), 206Pb(51V, X), 209Bi(54Cr, X), E not given; calculated production σ for 253Lr, 257105, 263107. Fragmentation theory, statistical model.

doi: 10.1088/0305-4616/6/2/012
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1980VO11      Izv.Akad.Nauk SSSR, Ser.Fiz. 44, 2226 (1980)

V.V.Volkov, A.G.Artyukh, G.F.Gridnev, M.Grushetski, W.Karcz, A.N.Mezentsev, V.L.Mikheev, L.Pomorski, A.Popescu, D.G.Popescu

Dominance of α-Particle Emission Channels in Deep Inelastic Transfer Reactions with 40Ar Ions.

NUCLEAR REACTIONS 107,109Ag(40Ar, X), E=285 MeV; measured σ(fragment θ) vs total kinetic energy for fragment Z=2-7; deduced α production dominance. Deep inelastic transfer reactions.


1978VO10      Izv.Akad.Nauk SSSR, Ser.Fiz. 42, 2234 (1978); Bull.Acad.Sci.USSR, Phys.Ser. 42, No.11, 14 (1978)

V.V.Volkov, A.G.Artyukh, G.F.Gridnev, A.N.Mezentsev, V.L.Mikheev, A.Popescu, D.G.Popescu, A.M.Sukhov, L.P.Chelnokov

Some Laws Governing the Decay of a Binary Nuclear System Produced in Deep-Inelastic Collisions of Complex Nuclei

NUCLEAR REACTIONS 107,109Ag(40Ar, X), E=285 MeV; 107,109Ag(11B, X), E=86 MeV; measured production σ for more than 100 nuclides. 181Ta(40Ar, X), E=290 MeV; 181Ta(136Xe, X), E=840 MeV; 181Ta(86Kr, X), E=550 MeV; calculated production σ for Au isotopes. Two-body ground state Q systematics, neutron evaporation.


1977BO32      Izv.Akad.Nauk SSSR, Ser.Fiz. 41, 1189 (1977); Bull.Acad.Sci.USSR, Phys.Ser. 41, No.6, 72 (1977)

D.Bogdan, M.Gasior, T.Kretsu, V.V.Kuznetsov, N.A.Lebedev, G.I.Lizurei, G.Makarie, D.G.Popescu, A.S.Khamidov

Positron Decay of 171Lu

RADIOACTIVITY 171Lu; measured Eβ, Iβ; deduced log ft, Q(ϵ).


1977BO36      Rev.Roum.Phys. 22, 743, (1977)

C.Borcea, A.Buta, F.Carstoiu, A.Constantinescu, G.Dumitrescu, A.Galeriu, A.Isbasescu, I.Lazar, I.Mihai, I.Mihailescu-Brancus, P.Osiceanu, M.Petrascu, M.Petrovici, D.G.Popescu, V.Simion, Gh.Voiculescu

On the Proton Induced Fission from the Isobaric Analogue States

NUCLEAR REACTIONS 235U(p, p), (p, F), (p, n), E=13.7-14.2 MeV; measured σ(E); deduced likelihood of reaching IAR in 235Np.


1977PO09      Rev.Roum.Phys. 22, 217 (1977)

D.G.Popescu, A.Sandulescu

On Absolute Values of the Alpha Decay Widths within the Two Center Shell Model

RADIOACTIVITY 206Po; calculated Γα.


1976BO46      Rev.Roum.Phys. 21, 853 (1976)

C.Borcea, A.Buta, F.Carstoiu, A.Constantinescu, A.Galeriu, A.Isbasescu, I.Lazar, I.Mihai, I.Mihailescu, P.Osiceanu, M.Petrascu, M.Petrovici, D.G.Popescu, V.Simion, G.Voiculescu, O.Dumitrescu, I.N.Kukhtina

Proton Scattering on 238U and the Probable Isobaric Analogue Resonances

NUCLEAR REACTIONS 238U(p, p'), E=15-16.2 MeV; measured σ(E, Ep', θ). 238U levels deduced S.


1976DU03      Rev.Roum.Phys. 21, 323 (1976)

O.Dumitrescu, D.G.Popescu

On the Alpha Decay of 255Fm, 257Fm and 241Pu

RADIOACTIVITY 253,251Cf, 237U; calculated α-hindrance factors.


1976DU07      Rev.Roum.Phys. 21, 829 (1976)

O.Dumitrescu, S.Holan, A.Popescu, D.G.Popescu, A.Sandulescu

Alpha Decay of Heavy and Superheavy Nuclei

RADIOACTIVITY 206,208,210,212,214,216Po; A > 200; calculated T1/2(α).


1975BO57      Rev.Roum.Phys. 20, 867 (1975)

C.Borcea, F.Carstoiu, A.Isbasescu, I.Lazar, I.Mihai, I.Mihailescu, M.Petrascu, M.Petrovici, D.G.Popescu, V.Simion, G.Voiculescu

Fission Cross-Section in the Reaction 239Pu(p, xnf) for the Energy Range (8-16) MeV

NUCLEAR REACTIONS 239Pu(p, F), E=8-16 MeV; measured σ(E).

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO0739.


1975CA16      Rev.Roum.Phys. 20, 415 (1975)

F.Carstoiu, O.Dumitrescu, D.G.Popescu

On the Existence of a Complex and Nonlocal α-Nucleus Potential and the α-Decay

RADIOACTIVITY 208Po; calculated reduced widths for favored α-decay.


1975DU15      Rev.Roum.Phys. 20, 873 (1975)

O.Dumitrescu, D.G.Popescu, A.Sandulescu

Calculation of Alpha Half-Lives for Superheavy Nuclei

NUCLEAR STRUCTURE A > 200; calculated α T1/2.


1973DU09      Rev.Roum.Phys. 18, 1231 (1973)

O.Dumitrescu, M.Petrascu, D.G.Popescu, A.Sandulescu

On the Alpha Decay of 239Pu

RADIOACTIVITY 239Pu; calculated α-hindrance factors.


1973DU11      Rev.Roum.Phys. 18, 1065 (1973)

O.Dumitrescu, D.G.Popescu

On the Alpha Decay of 241Am and 243Am

RADIOACTIVITY 241,243Am; calculated hindrance factors for α decay to levels in 237,239Np.


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