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NSR database version of May 19, 2024.

Search: Author = P.M.Stwertka

Found 21 matches.

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1990SZ05      Phys.Rev. C41, 2164 (1990)

E.M.Szanto, R.Liguori Neto, M.C.S.Figueira, A.Szanto de Toledo, M.G.Herman, N.G.Nicolis, P.M.Stwertka, T.M.Cormier

Search for Valence Proton Effects in Sub-Barrier Fusion Reactions

NUCLEAR REACTIONS, ICPND 50Ti, 51V, 52,54Cr, 54Fe(35Cl, X), E(cm) ≈ 50-80 MeV; measured fusion, residual production σ(E); deduced valence proton effects role.

doi: 10.1103/PhysRevC.41.2164
Citations: PlumX Metrics

1988HU01      Phys.Rev. C37, 118 (1988)

U.J.Huttmeier, C.J.Gross, D.M.Headly, E.F.Moore, S.L.Tabor, T.M.Cormier, P.M.Stwertka, W.Nazarewicz

Level Structure of 83Zr

NUCLEAR REACTIONS 54Fe(32S, n2p), E=105-115 MeV; measured Eγ, Iγ(θ), nγ-, (X-ray)γ-, γγ-coin. 83Zr deduced levels, π, J, T1/2, rotational bands, band crossings. Compton suppressed Ge detectors.

NUCLEAR STRUCTURE 83Zr; calculated deformation, Routhians. Woods-Saxon cranking model.

doi: 10.1103/PhysRevC.37.118
Citations: PlumX Metrics

1986NI07      Phys.Lett. 178B, 339 (1986)

N.G.Nicolis, T.M.Cormier, P.M.Stwertka, M.G.Herman

Angular-Momentum Limitations in the High-Spin Gamma-Decay of Medium-Mass Evaporation Residues

NUCLEAR REACTIONS, ICPND 54Fe(28Si, X)80Sr/79Sr/78Sr/79Rb/76Kr/78Kr/74Kr, E=75-145 MeV; measured γ-ray multiplicity, evaporation residue σ(E). NaI γ-ray multiplicity filter. Statistical model calculations.

doi: 10.1016/0370-2693(86)91390-0
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0359.

1985PI02      Phys.Rev. C31, 456 (1985)

W.F.Piel, Jr., P.Chowdhury, U.Garg, M.A.Quader, P.M.Stwertka, S.Vajda, D.B.Fossan

Collective Structures in the Odd-Z Transitional Nuclei 115,117I and 121,123Sb

NUCLEAR REACTIONS 106Cd(12C, 2np), E=58-63 MeV; 106Cd(14N, n2p), E=62 MeV; 112Sn(12C, 2npα), E=86 MeV; 120,122Sn(7Li, 2nα), E=27 MeV; measured γγ-coin, γ(θ), γ(t). 115,117I, 121,123Sb deduced levels, J, π, T1/2. Enriched targets, Ge(Li), Ge detectors.

doi: 10.1103/PhysRevC.31.456
Citations: PlumX Metrics

1985ST01      Phys.Lett. 150B, 91 (1985)

P.M.Stwertka, T.M.Cormier, M.Herman, N.G.Nicolis

Inhibition of Nucleon Decay from High Spin Nuclei near the N = 82 Shell Closure

NUCLEAR REACTIONS 124,118,112Sn(28Si, X), E ≈ 100-180 MeV; measured fusion σ(E); deduced average neutron multiplicity. Statistical model comparison.

doi: 10.1016/0370-2693(85)90145-5
Citations: PlumX Metrics

1985ST06      Phys.Rev.Lett. 54, 1635 (1985)

P.M.Stwertka, T.M.Cormier, M.G.Herman, N.G.Nicolis

High-Spin Evolution of Quasicontinuum γ Radiation in 156Er

NUCLEAR REACTIONS 128Te(32S, 4n), E=135-156 MeV; measured Eγ, Iγ, γ-multiplicity, γ(θ). 156Er deduced spin, energy correlated high J transitions.

doi: 10.1103/PhysRevLett.54.1635
Citations: PlumX Metrics

1985ST21      Phys.Lett. 161B, 70 (1985)

P.M.Stwertka, T.M.Cormier, N.G.Nicolis, M.G.Herman

The Onset of Collectivity in Nuclei near the N = 82, Z = 64 Double Closed Shell

NUCLEAR REACTIONS 122,124Sn(28Si, xn), E=120-126 MeV; measured quasicontinuum Eγ, Iγ, γ-multiplicities. 145,146,147,148Gd deduced spin-energy correlated rotational transitions, collective behavior J dependence.

doi: 10.1016/0370-2693(85)90611-2
Citations: PlumX Metrics

1985WE10      J.Phys.(London) G11, L173 (1985)

S.Wen, A.V.Ramayya, S.J.Robinson, C.F.Maguire, W.C.Ma, X.Zhao, T.M.Cormier, P.M.Stwertka, J.D.Cole, E.F.Zganjar, R.B.Piercey, M.A.Herath-Banda, J.Eberth, M.Wiosna

First Cascades in 73Br and High-Spin States in 75Br

NUCLEAR REACTIONS 54Fe(28Si, xnyp), E=128 MeV; measured Eγ, Iγ, γ(fragment)-coin. 73,75Br deduced levels, J, π, γ-branching, band structure.

doi: 10.1088/0305-4616/11/9/007
Citations: PlumX Metrics

1984CO26      Phys.Rev. C30, 1953 (1984)

T.M.Cormier, P.M.Stwertka, M.Herman, N.G.Nicolis

Internal Conversion and the Evolution of Nuclear Structure at very High Spin: 154-158Er

NUCLEAR REACTIONS 126,128,130Te(32S, xn)(34S, xn)154Er/155Er/156Er/157Er/158Er, E=130-160 MeV; measured residuals atomic charge state distributions. 154,155,156,157,158Er deduced internal conversion probability vs unit spin, critical spin enhancement, rotational structure characteristics.

doi: 10.1103/PhysRevC.30.1953
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1984CO27      Phys.Rev. C30, 2092 (1984)

M.M.Coimbra, N.Carlin Filho, A.Szanto de Toledo, P.M.Stwertka, M.G.Herman, N.G.Nicolis, T.M.Cormier

Use of Energy-Averaged Cross Sections for Nuclear Spectroscopy: 26Mg states in the continuum

NUCLEAR REACTIONS 12C(18O, α), E=46-50 MeV: measured σ(Eα), σ(θ); deduced energy averaged σ. 26Mg deduced continuum states.

doi: 10.1103/PhysRevC.30.2092
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC0219.

1984FU02      Phys.Lett. 136B, 322 (1984)

B.R.Fulton, J.S.Lilley, R.Lindsay, M.A.Nagarajan, N.Rowley, R.Shyam, T.M.Cormier, P.M.Stwertka

Structure in the 02+ Excitation Function in 12C + 12C Scattering

NUCLEAR REACTIONS, ICPND 12C(12C, 12C'), E(cm)=20-40 MeV; measured σ(E), σ(θ); deduced barrier matching, barrier, internal wave interference effects. DWBA, no resonance contribution.

doi: 10.1016/0370-2693(84)92012-4
Citations: PlumX Metrics

1984SZ05      Phys.Rev. C30, 1706 (1984)

A.Szanto de Toledo, T.M.Cormier, M.M.Coimbra, N.Carlin Filho, P.M.Stwertka, N.G.Nicolis

24Mg Yrast Sequence up to 30 MeV Excitation

NUCLEAR REACTIONS 12C(16O, α), E=94, 97 MeV; measured σ(θ), σ(Eα). 24Mg deduced yrast sequence, effective moment of inertia.

doi: 10.1103/PhysRevC.30.1706
Citations: PlumX Metrics

1983CO13      Nucl.Instrum.Methods 212, 185 (1983)

T.M.Cormier, M.G.Herman, B.S.Lin, P.M.Stwertka

Performance of a Recoil Mass Spectrometer

NUCLEAR REACTIONS 58Ni(35Cl, X), E=120 MeV; 120Sn(35Cl, X), E=138 MeV; measured σ(evaporation residue) vs mass. Recoil mass spectrometer.

doi: 10.1016/0167-5087(83)90690-7
Citations: PlumX Metrics

1983CO14      Phys.Rev.Lett. 51, 542 (1983)

T.M.Cormier, P.M.Cormier, M.Herman, N.G.Nicolis, P.M.Stwertka

Atomic-Charge-State Distributions of Fusion-Evaporation Residues and Nuclear Shape Changes at High Spin

NUCLEAR REACTIONS 126,128,130Te(32S, xn), (34S, xn), E=120-170 MeV; measured evaporation residue atomic charge state distribution. 158,156Er deduced internal conversion probability, shape spin dependences. Recoil mass spectrometry.

doi: 10.1103/PhysRevLett.51.542
Citations: PlumX Metrics

1983FU03      Phys.Rev. C27, 1811 (1983)

B.R.Fulton, J.S.Lilley, T.M.Cormier, P.M.Stwertka

Search for Resonant Behavior in 16O + 24Mg Inelastic Scattering

NUCLEAR REACTIONS 24Mg(16O, 16O'), E=41.6-65.6 MeV; measured σ(θ) vs E; deduced no structure.

doi: 10.1103/PhysRevC.27.1811
Citations: PlumX Metrics

1982ST11      Phys.Rev.Lett. 49, 640 (1982)

P.M.Stwertka, T.M.Cormier, M.Herman, N.Nicolis, A.Szanto de Toledo, M.M.Coimbra, N.Carlin Filho

Kinematics of the Gross Structures in the α Spectrum of the 16O + 12C Reaction

NUCLEAR REACTIONS 12C(16O, α), E=94-150 MeV; measured σ(Eα) vs E; deduced reaction mechanism. 24Mg deduced narrow, closely spaced levels. Kinematic analysis, inclusive reactions.

doi: 10.1103/PhysRevLett.49.640
Citations: PlumX Metrics

1981SZ05      Phys.Rev.Lett. 47, 632 (1981)

A.Szanto de Toledo, M.M.Coimbra, N.Carlin Filho, T.M.Cormier, P.M.Stwertka

Interpretation of Gross Structures in the Energy Spectra of the Reaction 12C(16O, α)24Mg

NUCLEAR REACTIONS 12C(16O, α), E=48.8, 54.2, 58.6, 55, 60, 65 MeV; measured σ(Eα, θ). 24Mg deduced yrast sequence. Si surface barrier detector telescopes.

doi: 10.1103/PhysRevLett.47.632
Citations: PlumX Metrics

1981SZ06      Phys.Rev.Lett. 47, 1881 (1981)

A.Szanto de Toledo, T.M.Cormier, M.Herman, B.Lin, P.M.Stwertka, M.M.Coimbra, N.C.Filho

Limiting Angular Momenta for Light Heavy-Ion Fusion at High Energy

NUCLEAR REACTIONS 12C(16O, α), E=28.5-100 MeV; measured σ(θ); deduced no low-L cut off. Legendre polynomial analysis.

doi: 10.1103/PhysRevLett.47.1881
Citations: PlumX Metrics

1981SZ07      Fizika(Zagreb) 13, Suppl.No.1, 29 (1981)

A.Szanto de Toledo, M.M.Coimbra, N.C.Filho, T.M.Cormier, P.M.Stwertka

An Interpretation of Gross Structures in the Energy Spectra of the 12C(16O, α)24Mg Reactions

NUCLEAR REACTIONS 12C(16O, α), E=48.8, 54.2, 58.6, 55, 65 MeV; measured σ(θ), σ(Eα); deduced broad structures, angular momentum matching. 24Mg deduced selective yrast cluster population.

1980AN16      Phys.Rev. C22, 501 (1980)

N.Anantaraman, H.W.Fulbright, P.M.Stwertka

Variation of Ground-State α-Particle Strengths for sd- and fp-Shell Nuclei

NUCLEAR REACTIONS 16O, 28Si, 40Ca, 56Fe, 60Ni, 90Zr(6Li, 6Li), E=28, 32 MeV; 16O, 28Si, 40Ca(6Li, d), E=32 MeV; 60Ni(6Li, d), E=28 MeV; measured σ(θ); 20Ne, 32S, 44Ti, 64Zn level deduced Sα. DWBA analysis.

doi: 10.1103/PhysRevC.22.501
Citations: PlumX Metrics

1979AN05      Nucl.Phys. A318, 517 (1979)

N.Anantaraman, A.M.Bastawros, C.L.Bennett, H.W.Fulbright, P.M.Stwertka

A Study of the 51V(6Li, d)55Mn Reaction

NUCLEAR REACTIONS 51V(6Li, d), E=32 MeV; measured σ(Ed, θ). 55Mn levels deduced Sα. DWBA analysis. Shell-model calculation of strengths. Natural target.

doi: 10.1016/0375-9474(79)90664-X
Citations: PlumX Metrics

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