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NSR database version of April 27, 2024.

Search: Author = M.W.Johnson

Found 7 matches.

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1985JO04      Phys.Lett. 161B, 75 (1985)

M.W.Johnson, E.B.Shera, M.V.Hoehn, R.A.Naumann, J.D.Zumbro, C.E.Bemis, Jr.

²⁴¹Am and ²⁴³Am Charge Distributions from Muonic X-Ray Spectroscopy and the Quadrupole Moment of the ²⁴⁰Am Fission Isomer

NUCLEAR REACTIONS ^241,243Am(μ^-, X), E at rest; measured muonic E X-ray, I X-ray. ^241,243Am deduced intrinsic quadrupole moment, Barrett radii. ²⁴⁰Am deduced fission isomer quadrupole moment. Optical isotope shift data input.

ATOMIC PHYSICS, Mesic-Atoms ^241,243Am(μ, X), E at rest; measured muonic X-rays.

doi: 10.1016/0370-2693(85)90612-4
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1980OR01      Phys.Rev. C21, 1967 (1980)

C.J.Orth, J.D.Knight, K.Wolfsberg, M.W.Johnson

Nuclear Disintegration of Some Complex Nuclei by 60-MeV Muons

NUCLEAR REACTIONS ¹²C, ^46,48Ti, ⁵⁸Ni, ⁶³Cu, ¹⁷⁴Yb, ¹⁹⁷Au, ²⁰³Tl(μ⁺, xnyp), E=60 MeV; ¹²C(μ⁺, xnyp), E=30 MeV; ¹²C, ⁶³Cu, ¹⁹⁷Au, ²⁰³Tl(μ^-, xn), E=60 MeV; measured production σ for ¹¹C, ⁴⁵Ti, ⁴⁷Sc, ⁵⁷Ni, ⁵⁷Co, ^61,62Cu, ¹⁷³Tm, ^194,196Au, ^{199,200,201,202}Tl. Activation method, enriched ²⁰³Tl target. PWBA, virtual photon calculations.

doi: 10.1103/PhysRevC.21.1967
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1980WI06      Phys.Rev. C21, 2019 (1980)

W.W.Wilcke, M.W.Johnson, W.U.Schroder, D.Hilscher, J.R.Birkelund, J.R.Huizenga, J.C.Browne, D.G.Perry

Actinide Muonic Atom Lifetimes Deduced from Muon-Induced Fission

NUCLEAR REACTIONS ^235,238U, ²³⁷Np, ^239,242Pu(μ^-, F), E at rest; measured delayed fission. ²³²Th, ^233,235,238U, ²³⁷Np, ^239,242Pu deduced muon capture rates, T_1/2 of muonic atoms, isotopic effects.

doi: 10.1103/PhysRevC.21.2019
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1979SC19      Phys.Rev.Lett. 43, 672 (1979)

W.U.Schroder, W.W.Wilcke, M.W.Johnson, D.Hilscher, J.R.Huizenga, J.C.Browne, D.G.Perry

Evidence for Atomic Muon Capture by Fragments from Prompt Fission of Muonic ²³⁷Np, ²³⁹Pu, and ²⁴²Pu

NUCLEAR REACTIONS ²³⁷Np, ^239,242Pu(μ^-, nF), E=at rest; measured (fragment n)-coin; deduced T_1/2 of muon bound to target, target-n, fission fragment.

doi: 10.1103/PhysRevLett.43.672
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1978JO05      Phys.Rev. C17, 927 (1978)

M.W.Johnson, R.C.Thompson, J.R.Huizenga

States in U²³³ Excited by the ²³⁴U(d, t) and ²³⁴U(³He, α) Reactions

NUCLEAR REACTIONS ²³⁴U(d, t), E=14 MeV; ²³⁴U(³He, α), E=30 MeV; measured σ(θ). ²³³U deduced levels, L, Nilsson configurations, J, π.

doi: 10.1103/PhysRevC.17.927
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1978WI07      Phys.Rev. C18, 1452 (1978)

W.W.Wilke, M.W.Johnson, W.U.Schroder, J.R.Huizenga, D.G.Perry

Neutron Emission from Actinide Muonic Atoms

NUCLEAR REACTIONS ²³²Th, ^235,238U, ²³⁷Np, ^239,242Pu(μ^-, F), E=0 MeV; measured n(t); deduced total muon capture rates, isotope effect, Γn/Γf.

doi: 10.1103/PhysRevC.18.1452
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1977JO09      Phys.Rev. C15, 2169 (1977)

M.W.Johnson, W.U.Schroder, J.R.Huizenga, W.K.Hensley, D.G.Perry, J.C.Browne

Measurement of Total Muon-Capture Rates in ²³²Th, ^235,238U, and ²³⁹Pu

RADIOACTIVITY ²³²Th, ^235,238U, ²³⁹Pu; measured muon disappearance rates in muonic atoms; deduced total muon capture rates, upper limit for population of shape isomers.

doi: 10.1103/PhysRevC.15.2169
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