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NSR database version of April 27, 2024.

Search: Author = A.H.Lumpkin

Found 19 matches.

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1981PI02      Phys.Rev. C23, 708 (1981)

W.F.Piel, Jr., G.Scharff-Goldhaber, A.H.Lumpkin, Y.K.Lee, D.C.Stromswold

Level Schemes of 102Pd and 100Pd

NUCLEAR REACTIONS 92Zr(13C, 3nγ)102Pd, E=56 MeV; 94Zr(12C, 4nγ)102Pd, E=69 MeV; 91Zr(12C, 3nγ)100Pd, E=56, 63 MeV; measured Eγ, Iγ, σ(Eγ), γ(θ), γ(t), γγ-coin, linear polarization. 102,100Pd deduced levels, γ branching, J, π, δ, T1/2 limits. Enriched 91,92,94Zr targets, Ge(Li) detectors, Ge(Li) Compton polarimeter. Variable moment of inertia model, interacting boson approximation, rotation alignment models.

doi: 10.1103/PhysRevC.23.708
Citations: PlumX Metrics

1979LU02      Phys.Rev. C19, 785 (1979)

A.H.Lumpkin, L.H.Harwood, J.D.Fox, K.W.Kemper

Enhancements in the p and d Exit Channels of 12C + 12C: E(c.m.) = 14.3 and 25.2 MeV

NUCLEAR REACTIONS 12C(12C, pγ), E(cm)=14.3 MeV; measured Ep, Eγ, pγ-coin. 12C(12C, dγ), E(cm)=25.2 MeV; measured Ed, Eγ, dγ-coin. 22,23Na deduced resonances, J, π.

doi: 10.1103/PhysRevC.19.785
Citations: PlumX Metrics

1978HA39      Phys.Rev. C18, 2145 (1978)

L.H.Harwood, K.W.Kemper, J.D.Fox, A.H.Lumpkin

Cluster Nature and Parity of the 9.155 MeV State in 15N

NUCLEAR REACTIONS 12C(6Li, 3Heγ), E=34 MeV; 12C(7Li, αγ), E=28 MeV; measured σ, (particle)γ-coin. 15N 9.155-MeV level deduced π, T1/2. Comparison with cluster, shell models.

doi: 10.1103/PhysRevC.18.2145
Citations: PlumX Metrics

1978LU01      Phys.Rev.Lett. 40, 104 (1978)

A.H.Lumpkin, G.R.Morgan, J.D.Fox, K.W.Kemper

Possible Identification of 10+ Levels in 24Mg at E(X) ≥ 20 MeV

NUCLEAR REACTIONS 12C(16O, α), E=50-70 MeV; measured σ(E, Eα, Eγ). 24Mg deduced levels, J, π.

doi: 10.1103/PhysRevLett.40.104
Citations: PlumX Metrics

1978LU02      Phys.Rev. C17, 376 (1978)

A.H.Lumpkin, L.H.Harwood, L.A.Parks, J.D.Fox

Assignment of a Heavy-Ion Produced High-Spin Cascade to a Rh Isotope

NUCLEAR REACTIONS 90Zr(12C, X), E=56 MeV; 91Zr(11B, X), E=40 MeV; measured Eγ, particle γ-coin. 99Pd, 99Rh, 99,98,97,96Ru, 98Rh, 38Ar, 197Au deduced transitions.

doi: 10.1103/PhysRevC.17.376
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1977KE05      Phys.Rev. C15, 664 (1977)

G.J.KeKelis, A.H.Lumpkin, K.W.Kemper, J.D.Fox

Spectroscopy of High Spin States in 23Na Using the 12C(12C, pγ)23Na Reaction

NUCLEAR REACTIONS 12C(12C, pγ), E=38.82 MeV; measured pγ(θ, t). 23Na levels deduced J, π, T1/2, γ-branching, δ, B(λ).

doi: 10.1103/PhysRevC.15.664
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1977LU02      Phys.Rev. C15, 1152 (1977)

A.H.Lumpkin, G.J.KeKelis, K.W.Kemper, J.D.Fox

Jπ of the E(x) = 4.52 MeV State in 22Na via the 12C(12C, dγ)22Na Reaction

NUCLEAR REACTIONS 12C(12C, dγ), E=38.82 MeV; measured DSA, dγ-coin, dγ(θ). 22Na level deduced J, π, T1/2 limit.

doi: 10.1103/PhysRevC.15.1152
Citations: PlumX Metrics

1977LU05      Phys.Rev. C16, 220 (1977)

A.H.Lumpkin, G.R.Morgan, K.W.Kemper

Structure in the 12C(12C, d)22Na Reaction Near E(c.m.) = 14.3 MeV

NUCLEAR REACTIONS 12C(12C, d), E(cm)=13-16.8 MeV; measured σ(Ed); deduced reaction mechanism.

doi: 10.1103/PhysRevC.16.220
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1977PA25      Phys.Lett. 70B, 27 (1977)

L.A.Parks, K.W.Kemper, A.H.Lumpkin, R.I.Cutler, L.H.Harwood, D.Stanley, P.Nagel, F.Petrovich

Quadrupole Effects in the Elastic Scattering of 10B, 11B, and 12C by 27Al

NUCLEAR REACTIONS 27Al(10B, 10B), (11B, 11B), E=50 MeV; measured σ(θ); deduced optical model parameters.

doi: 10.1016/0370-2693(77)90336-7
Citations: PlumX Metrics

1976FO08      Phys.Rev.Lett. 37, 629 (1976)

J.D.Fox, W.J.Courtney, K.W.Kemper, A.H.Lumpkin, N.R.Fletcher, L.R.Medsker

Comment on Evidence for Primordial Superheavy Elements

NUCLEAR REACTIONS 140Ce(p, nγ), E=5.7 MeV; measured Eγ, E(X-ray). 140Pr deduced transition which could interfere with observation of X-rays from superheavy element Z=126.

doi: 10.1103/PhysRevLett.37.629
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1976KI02      Phys.Rev. C13, 1132 (1976)

O.C.Kistner, A.H.Lumpkin

Measurement of the 89-keV-State-to-Ground-State Quadrupole-Moment Ratio in 99Ru

NUCLEAR REACTIONS 99Ru(γ, γ), E=89.4 keV; measured Mossbauer effect, magnetic hyperfine spectra. 99Ru level deduced δ, quadrupole moment ratio.

doi: 10.1103/PhysRevC.13.1132
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1976LU03      Phys.Rev. C13, 2564 (1976)

A.H.Lumpkin, G.J.KeKelis, K.W.Kemper, A.F.Zeller

Resonance-Like Behavior in the 12C(16O, p)27Al Reaction

NUCLEAR REACTIONS 12C(16O, pγ), E(cm)=11.0-15.0 MeV; measured σ(E, Ep, Eγ). 27Al levels deduced J limits.

doi: 10.1103/PhysRevC.13.2564
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1976SU05      Phys.Lett. 62B, 283 (1976)

A.W.Sunyar, E.Der Mateosian, O.C.Kistner, A.Johnson, A.H.Lumpkin, P.Thieberger

Multiple Band Structure in 156Er

NUCLEAR REACTIONS 142Nd(18O, 4n), E=90-95 MeV; measured σ(E, Eγ, θ), γγ-coin. 156Er deduced levels, K, J, π, backbending.

doi: 10.1016/0370-2693(76)90075-7
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1975KE07      Phys.Rev.Lett. 35, 710 (1975)

G.J.KeKelis, A.H.Lumpkin, J.D.Fox

Gamma Decay of the 9.042- and 9.805-MeV States in 23Na

NUCLEAR REACTIONS 12C(12C, pγ), E=38.82 MeV; measured pγ(θ). 23Na levels deduced J, π, γ-branching, δ.

doi: 10.1103/PhysRevLett.35.710
Citations: PlumX Metrics

1975OL01      Phys.Rev. C11, 110 (1975)

J.W.Olness, A.H.Lumpkin, J.J.Kolata, E.K.Warburton, J.S.Kim, Y.K.Lee

γ-Ray Linear Polarization Measurements Following Heavy-Ion Bombardment of 2s-1d Shell Nuclei

NUCLEAR REACTIONS 24,26Mg, 27Al(18O, X), 26Mg(14N, X), 27Al(19F, X), E=40 MeV; 28Si(19F, X), E=45 MeV; measured pγ. 39,41K, 41Ca levels deduced J, π, λ, γ-mixing.

doi: 10.1103/PhysRevC.11.110
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1974LU01      Phys.Rev. C9, 258 (1974)

A.H.Lumpkin, A.W.Sunyar, K.A.Hardy, Y.K.Lee

Linear-Polarization Measurements of the Reaction γ Rays from 96Zr(18O, 4nγ)110Cd

NUCLEAR REACTIONS 96Zr(18O, 4nγ), E=60 MeV; measured Eγ, γ-polarization, γ(θ). 110Cd levels deduced π, γ-multipolarities.

doi: 10.1103/PhysRevC.9.258
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1973SC14      Phys.Lett. 44B, 416 (1973)

G.Scharff-Goldhaber, M.McKeown, A.H.Lumpkin, W.F.Piel, Jr.

'Forking' of Ground State Bands in 102Pd and 100Pd

NUCLEAR REACTIONS 90Zr(13C, 3nγ), E=58 MeV; 91Zr(12C, 3nγ), E=64 MeV; 92Zr(13C, 3nγ), E=55 MeV; 94Zr(12C, 4nγ), E=65 MeV; measured Eγ, Iγ(θ). 100,102Pd deduced levels, J, π.

doi: 10.1016/0370-2693(73)90322-5
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1971HA30      Phys.Rev. C4, 317 (1971)

K.A.Hardy, A.H.Lumpkin, Y.K.Lee, G.E.Owen

Polarization Measurements of the Gamma-Ray Transitions from the 1.459-MeV Level in 19F

NUCLEAR REACTIONS 19F(p, p'γ), E=2.78 MeV; measured σ(Eγ, θ(γ)), γ-linear polarization. 19F transitions deduced γ-mixing.

doi: 10.1103/PhysRevC.4.317
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1971LU11      Phys.Rev. C4, 1215 (1971)

A.H.Lumpkin, K.A.Hardy, Y.K.Lee, G.E.Owen, R.Shnidman

Linear-Polarization Measurements on the Gamma Decay from the Doublet at 3.00 MeV in 27Al

NUCLEAR REACTIONS 27Al(p, p'γ), E=4.38 MeV; measured σ(Eγ, θ(γ)), γ-linear polarization. 27Al transitions deduced γ-mixing.

doi: 10.1103/PhysRevC.4.1215
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