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Search: Author = J.R.Wu

Found 31 matches.

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1988SI01      Phys.Rev. C37, 158 (1988)

J.D.Silk, H.D.Holmgren, D.L.Hendrie, T.J.M.Symons, G.D.Westfall, P.H.Stelson, S.Raman, R.L.Auble, J.R.Wu, K.Van Bibber

Fragmentation of 16O Projectiles at 100 MeV per Nucleon

NUCLEAR REACTIONS 27Al(16O, 12CX), E=100 MeV/nucleon; measured invariant σ vs rapidity. 27Al(16O, X), E=100 MeV/nucleon; measured σ(fragment θ), σ vs fragment mass for X=7,9,10Be, 10,11,12B, 10,11,12,13,14C, 13,14,15N; deduced reaction mechanism.

doi: 10.1103/PhysRevC.37.158
Citations: PlumX Metrics


1984CI04      Phys.Rev. C29, 2017 (1984)

G.Ciangaru, C.C.Chang, J.R.Wu, R.W.Koontz, H.D.Holmgren

Nuclear States of 28Si and 28Al from (α, t) and (α, h) Reactions at 80 MeV

NUCLEAR REACTIONS 27Al(α, t), (α, 3He), E=80 MeV; measured σ(θ), σ(Et), σ(E(3He)); deduced optical model parameters. 28Si, 28Al levels deduced L, spectroscopic factors. Finite-range DWBA, shell model wave functions.

doi: 10.1103/PhysRevC.29.2017
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetT0097.


1983KA13      Phys.Rev. C28, 105 (1983)

A.M.Kalenda, B.D.Anderson, A.R.Baldwin, R.Madey, J.W.Watson, C.C.Chang, H.D.Holmgren, R.W.Koontz, J.R.Wu, H.Machner

Energy and Angular Distributions of Neutrons from 90 MeV Proton and 140 MeV Alpha-Particle Bombardment of Nuclei

NUCLEAR REACTIONS 27Al, 58Ni, 90Zr, 209Bi(p, n), E=90 MeV; 27Al, 58Ni, 90Zr, 209Bi(α, n), E=140 MeV; measured σ(θ, En); deduced reaction mechanisms. Plane wave impulse approximation, quasifree scattering, preequilibrium exciton, intranuclear cascade, geometry dependent hybrid models, (p, p') data comparison.

doi: 10.1103/PhysRevC.28.105
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC0310.


1983OB02      Phys.Rev. C27, 2753 (1983)

F.E.Obenshain, F.E.Bertrand, E.E.Gross, N.W.Hill, J.R.Wu, R.L.Burman, M.Hamm, M.J.Leitch, R.D.Edge, B.M.Preedom, M.A.Moinester, M.Blecher, K.Gotow

Positive-Pion-Nucleus Elastic Scattering at 20 MeV

NUCLEAR REACTIONS 12C, 16O, 40Ca, 90Zr, 120Sn, 208Pb(π+, π+), E=20 MeV; measured σ(θ); deduced optical model, s-, p-wave strength parameters. Phenomenological optical model.

doi: 10.1103/PhysRevC.27.2753
Citations: PlumX Metrics


1982AU04      Phys.Rev. C25, 2504 (1982)

R.L.Auble, J.B.Ball, F.E.Bertrand, R.L.Ferguson, C.B.Fulmer, I.Y.Lee, R.L.Robinson, G.R.Young, J.R.Wu, J.C.Wells, H.Yamada

Light-Ion Emission in Heavy-Ion Collision: Beam energy dependence

NUCLEAR REACTIONS 60Ni(12C, pX), (12C, dX), (12C, tX), (12C, 3HeX), (12C, αX), E=90, 123, 156, 189 MeV; measured σ(θp), σ(θd), σ(θα), σ(θ(3He)) vs E; deduced integral yields, model parameters. Moving source model.

doi: 10.1103/PhysRevC.25.2504
Citations: PlumX Metrics


1982TA05      Phys.Rev. C25, 1253 (1982)

S.L.Tabor, C.C.Chang, M.T.Collins, G.J.Wagner, J.R.Wu, D.W.Halderson, F.Petrovich

Survey of the (3He, t) Reaction: Excitation of the isobaric analog of the giant dipole resonance

NUCLEAR REACTIONS 12C, 16O, 27Al, 28Si, 40Ca, 46Ti, 90Zr(3He, t), (3He, 3He'), E=130, 170 MeV; measured σ(Et), σ(E(3He)), σ(θ). 16O, 27Al, 28Si, 40Ca, 46Ti, 90Zr deduced T=0, GQR. 12N, 16F, 27Si, 28P, 40Sc, 46V, 90Nb deduced IAS of T=1, GDR.

doi: 10.1103/PhysRevC.25.1253
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetT0078.


1981AN01      Phys.Rev.Lett. 46, 226 (1981)

B.D.Anderson, A.R.Baldwin, A.M.Kalenda, R.Madey, J.W.Watson, C.C.Chang, H.D.Holmgren, R.W.Koontz, J.R.Wu

Proton and Neutron Inclusive Spectra and the Importance of the Single Nucleon-Nucleon Scattering Process

NUCLEAR REACTIONS 27Al, 58Ni, 90Zr, 209Bi(p, pX), (p, nX), E=90 MeV; measured σ(En, θ), σ(Ep, θ); deduced nucleon-nucleon scattering mechanism dominance. PWIA, quasifree scattering calculation.

doi: 10.1103/PhysRevLett.46.226
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC0841.


1981BE06      Phys.Lett. 99B, 213 (1981)

F.E.Bertrand, J.R.Beene, C.E.Bemis, Jr., E.E.Gross, D.J.Horen, J.R.Wu, W.P.Jones

Measurement of the Fission Decay of the Giant Quadrupole Resonance in 238U

NUCLEAR REACTIONS, Fission 238U(α, α'F), E=152 MeV; measured σ(Eα', θ), α(fragment)-coin, fission probability vs excitation energy. 238U deduced Γf/Γ for GQR, possible K conservation.

doi: 10.1016/0370-2693(81)91110-2
Citations: PlumX Metrics


1981BE33      Phys.Lett. 103B, 326 (1981)

F.E.Bertrand, E.E.Gross, D.J.Horen, J.R.Wu, J.Tinsley, D.K.McDaniels, L.W.Swenson, R.Liljestrand

Excitation of Giant Resonance Modes in 90Zr and 120Sn by 200 MeV Protons

NUCLEAR REACTIONS 90Zr, 120Sn(p, p'), E=200 MeV; measured σ(Ep, θ). 90Zr deduced M1 transition strength. 90Zr, 120Sn deduced GDR, isoscalar GQR, giant octupole resonance, hexadecapole strength upper limit. Broad-range magnetic spectrograph.

doi: 10.1016/0370-2693(81)90235-5
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO0236.


1981FU04      Nucl.Phys. A356, 235 (1981)

C.B.Fulmer, G.R.Satchler, E.E.Gross, F.E.Bertrand, C.D.Goodman, D.C.Hensley, J.R.Wu, N.M.Clarke, M.F.Steeden

Elastic and Inelastic Scattering of 88 MeV 6Li Ions

NUCLEAR REACTIONS 24,25,26Mg, 27Al, 40,48Ca, 59Co, 60Ni, 197Au, 206,208Pb(6Li, 6Li), 24,26Mg, 60Ni(6Li, 6Li'), E=88 MeV; measured σ(θ); deduced optical potentials. DWBA, coupled-channels calculations.

doi: 10.1016/0375-9474(81)90125-1
Citations: PlumX Metrics


1981FU05      Phys.Lett. 100B, 305 (1981)

C.B.Fulmer, J.B.Ball, R.L.Ferguson, R.L.Robinson, J.R.Wu

Light Particle Emission from Reactions of 208 MeV 16O Ions with 12C, 56Fe, and 91Zr

NUCLEAR REACTIONS 12C, 56Fe, 91Zr(16O, p), (16O, d), (16O, t), (16O, 3He), (16O, α), E=208.2 MeV; measured σ(θ, Ep), σ(θ, Et), σ(θ, E(3He)), σ(θ, Eα); deduced projectile breakup contributions. Modified fireball model.

doi: 10.1016/0370-2693(81)90092-7
Citations: PlumX Metrics


1981RI07      Phys.Rev. C24, 552 (1981); Erratum Phys.Rev. C26, 2337 (1982)

B.G.Ritchie, R.D.Edge, D.J.Malbrough, B.M.Preedom, F.E.Bertrand, E.E.Gross, F.E.Obenshain, J.R.Wu, M.Blecher, K.Gotow, R.L.Burman, R.Carlini, M.E.Hamm, M.J.Leitch, M.A.Moinester

Reaction π+ + d → p + p at 20 to 65 MeV

NUCLEAR REACTIONS 2H(π+, p), E=20, 25, 30, 35, 40, 45, 65 MeV; measured σ(θ); deduced σ(total). Polynomial analysis.

doi: 10.1103/PhysRevC.24.552
Citations: PlumX Metrics


1981RO11      Phys.Rev. C24, 2084 (1981)

R.L.Robinson, R.L.Auble, I.Y.Lee, M.J.Martin, G.R.Young, J.Gomez del Campo, J.B.Ball, F.E.Bertrand, R.L.Ferguson, C.B.Fulmer, J.R.Wu, J.C.Wells, H.Yamada

Fast Proton and Alpha Particles from the 12C + 60Ni Reaction

NUCLEAR REACTIONS 60Ni(12C, pX), (12C, αX), E=136, 194 MeV; measured Eγ, Iγ, αγ-, α(fragment)-, p(fragment)-coin, (particle)(particle)(θ), γ-multiplicities; deduced light-ion production mechanism.

doi: 10.1103/PhysRevC.24.2084
Citations: PlumX Metrics


1981WU02      Phys.Rev. C24, 500 (1981)

J.R.Wu, J.R.Beene, C.E.Bemis, Jr., F.E.Bertrand, E.E.Gross, D.J.Horen, W.P.Jones

Fission Probability of 239U at High Excitation Measured with the 238U(α, 3Hef) Reaction

NUCLEAR REACTIONS, Fission 238U(α, 3HeF), E=152 MeV; measured σ(θ(3He), E(3He)), σ(θ(3He), E(3He), fragment θ), 3He(fragment)(fragment)-coin; deduced reaction mechanism. 239U deduced fission probability vs excitation energy.

doi: 10.1103/PhysRevC.24.500
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2495.


1980BE50      Phys.Rev. C22, 1832 (1980)

F.E.Bertrand, G.R.Satchler, D.J.Horen, J.R.Wu, A.D.Bacher, G.T.Emery, W.P.Jones, D.W.Miller, A. van der Woude

Giant Multipole Resonances from Inelastic Scattering of 152-MeV Alpha Particles

NUCLEAR REACTIONS 208Pb, 120Sn, 90Zr, 58Ni, 46Ti(α, α), (α, α'), E=152 MeV; measured σ(Eα, θ). 46Ti, 58Ni, 90Zr, 120Sn, 208Pb deduced GQR, giant monopole resonances, Γ, L, T, β(L), B(λ), EWSR. Folding model analysis.

doi: 10.1103/PhysRevC.22.1832
Citations: PlumX Metrics


1980CO19      Phys.Rev.Lett. 45, 1930 (1980)

A.A.Cowley, C.C.Chang, H.D.Holmgren, J.D.Silk, D.L.Hendrie, R.W.Koontz, P.G.Roos, C.Samanta, J.R.Wu

Energy Dissipation Process for 100-MeV Protons and the Nucleon-Nucleon Interactions in Nuclei

NUCLEAR REACTIONS 58Ni(p, 2p), E=100 MeV; measured pp-coin, σ(Ep1, Ep2, θ1, θ2); deduced reaction mechanism, energy dissipation process. DWIA analysis, quasifree scattering.

doi: 10.1103/PhysRevLett.45.1930
Citations: PlumX Metrics


1980WU02      Phys.Lett. 91B, 169 (1980)

J.R.Wu

Mechanisms for (p, p') Reactions in the Continuum

NUCLEAR REACTIONS 12C, 16O(p, p'), E=62 MeV; 27Al(p, p'), E=62, 90 MeV; calculated σ(θ); deduced reaction mechanisms. Quasielastic PWIA, pre-equilibrium exciton models.

doi: 10.1016/0370-2693(80)90422-0
Citations: PlumX Metrics


1980WU03      Phys.Rev.Lett. 45, 8 (1980)

J.R.Wu, I.Y.Lee

Projectile Fragmentation Accompanied by Incomplete Fusion

NUCLEAR REACTIONS 160Gd(12C, αxn), E=90, 120, 160, 200 MeV; calculated (particle)(particle)(θ), (particle)γ(θ). Two-step reaction model.

doi: 10.1103/PhysRevLett.45.8
Citations: PlumX Metrics


1979CO07      Phys.Rev.Lett. 42, 1440 (1979)

M.T.Collins, C.C.Chang, S.L.Tabor, G.J.Wagner, J.R.Wu

Decay Modes of the Isoscalar Giant Quadrupole Resonance in 58Ni

NUCLEAR REACTIONS 58Ni(α, α'), (α, α'p), (α, α'n), (α, 2α), E=140 MeV; measured σ(Eα'), α'p-coin, α'n-coin, α'α-coin. 58Ni deduced branching ratios for α, p decay of GQR. Continuum, statistical model analysis.

doi: 10.1103/PhysRevLett.42.1440
Citations: PlumX Metrics


1979HO31      Phys.Rev. C19, 1595 (1979)

W.F.Hornyak, M.D.Glascock, C.C.Chang, J.R.Wu

Reaction 27Al + α at Eα = 140 MeV: II

NUCLEAR REACTIONS 27Al(α, X), E=140 MeV; measured fragment σ(θ, E); deduced fragment velocities, reaction mechanism, model characteristics. Monte Carlo, exciton model calculations.

doi: 10.1103/PhysRevC.19.1595
Citations: PlumX Metrics


1979KO32      Phys.Rev.Lett. 43, 1862 (1979)

R.W.Koontz, C.C.Chang, H.D.Holmgren, J.R.Wu

Projectile Fragmentation Processes in 35-MeV/amu (α, xy) Reactions

NUCLEAR REACTIONS 90Zr(α, pt), (α, 2d), (α, pX), E=35 MeV/nucleon; measured fragment-fragment (θ), (fragment)(fragment)-coin; deduced reaction mechanism.

doi: 10.1103/PhysRevLett.43.1862
Citations: PlumX Metrics


1979WA11      Phys.Rev. C20, 1079 (1979)

N.S.Wall, J.R.Wu, C.C.Chang, H.D.Holmgren

Medium Energy Nuclear Reactions: 'Quasi-Two-Body Scaling' and 'Hot Spots'

NUCLEAR REACTIONS 27Al, 58Ni, 90Zr, 209Bi(p, p), (p, d), (p, t), (p, α), E=90 MeV; 27Al, 58Ni, 90Zr, 209Bi(α, p), (α, d), (α, t), (α, α), E=140 MeV; calculated energy spectra; deduced characteristic parameter. Quasi two-body scaling, hot spot interpretation.

doi: 10.1103/PhysRevC.20.1079
Citations: PlumX Metrics


1979WU02      Phys.Rev. C19, 370 (1979)

J.R.Wu, C.C.Chang, H.D.Holmgren

Charged-Particle Spectra: 80 MeV Deuterons on 27Al and 58Ni and 70 MeV Deuterons on 90Zr, 208Pb, and 232Th

NUCLEAR REACTIONS 27Al, 58Ni, 90Zr, 208Pb, 232Th(d, pX), (d, dX), (d, tX), (d, 3HeX), (d, αX), E=70, 80 MeV; measured σ(θp, Ep), σ(θd, Ed), σ(θt, Et), σ(θ(3He), E(3He)), σ(θα, Eα); deduced σ(E). Comparison with preequilibrium exciton, compound nuclear evaporation, deuteron breakup model.

doi: 10.1103/PhysRevC.19.370
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1035.


1979WU03      Phys.Rev. C19, 659 (1979)

J.R.Wu, C.C.Chang, H.D.Holmgren

Charged Particle Spectra: 140 MeV α Particle Bombardment of 27Al, 58Ni, 90Zr, 209Bi, and 232Th

NUCLEAR REACTIONS 27Al, 58Ni, 90Zr, 209Bi, 232Th(α, pX), (α, dX), (α, 3HeX), (α, αX), E=140 MeV; measured σ(Ep, θp), σ(Ed, θd), σ(Et, θt), σ(E(3He), θ(3He)), σ(Eα, θα); comparison with preequilibrium exciton, evaporation, projectile breakup models.

doi: 10.1103/PhysRevC.19.659
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC0884.


1979WU04      Phys.Rev. C19, 698 (1979)

J.R.Wu, C.C.Chang, H.D.Holmgren

Charged-Particle Spectra: 90 MeV Protons on 27Al, 58Ni, 90Zr, and 209Bi

NUCLEAR REACTIONS 27Al, 90Zr, 209Bi(p, pX), (p, dX), (p, tX), (p, 3HeX), (p, αX), E=90 MeV; 58Ni(p, pX), (p, dX), (p, tX), (p, 3HeX), (p, αX), E=90, 100 MeV; measured σ(Ep, θp), σ(Ed, θd), σ(Et, θt), σ(E(3He), θ(3He)), σ(Eα, θα). Comparison with pre-equilibrium exciton, evaporation models.

doi: 10.1103/PhysRevC.19.698
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO0137.


1979WU09      Phys.Rev. C20, 1284 (1979)

J.R.Wu, C.C.Chang, H.D.Holmgren, R.W.Koontz

Alpha-Particle Breakup at Incident Energies of 20 and 40 MeV/Nucleon

NUCLEAR REACTIONS 27Al, 58Ni, 90Zr, 209Bi(α, p), (α, d), (α, t), (α, 3He), E=80, 160 MeV; measured differential energy spectra; deduced α breakup yield, reaction mechanism. Plane wave model.

doi: 10.1103/PhysRevC.20.1284
Citations: PlumX Metrics


1978WU02      Phys.Rev.Lett. 40, 1013 (1978)

J.R.Wu, C.C.Chang, H.D.Holmgren

Breakup of α Particles in the Fields of Nuclei

NUCLEAR REACTIONS 209Bi, 58Ni, 90Zr, 120Sn, 232Th(α, p), (α, d), (α, t), (α, 3He), E=140 MeV; analyzed α-particle breakup.

doi: 10.1103/PhysRevLett.40.1013
Citations: PlumX Metrics


1978WU03      Phys.Rev. C17, 1540 (1978)

J.R.Wu, C.C.Chang

Complex-Particle Emission in the Pre-Equilibrium Exciton Model

NUCLEAR REACTIONS 12C, 16O, 27Al, 54Fe, 89Y, 120Sn, 197Au, 209Bi(p, X), E=62 MeV; 54Fe(p, X), E=29, 39 MeV; 58Ni(p, X), E=90 MeV; calculated σ. Pre-equilibrium exciton model.

doi: 10.1103/PhysRevC.17.1540
Citations: PlumX Metrics


1977WU02      Phys.Rev. C16, 1812 (1977)

J.R.Wu, C.C.Chang

Pre-Equilibrium Particle Decay in the Photonuclear Reactions

NUCLEAR REACTIONS 27Al, 63Cu, 115In, 118Sn, 181Ta, 207Pb, 209Bi, 235U(γ, X), E=55, 85 MeV; 12C(γ, X), E=110 MeV; 127I(γ, xn), E=50, 100, 150 MeV; calculated σ.

doi: 10.1103/PhysRevC.16.1812
Citations: PlumX Metrics


1976DI05      Phys.Rev. C13, 1388 (1976)

J.-P.Didelez, C.C.Chang, N.S.Chant, H.D.Holmgren, R.I.Steinberg, J.R.Wu

Analysis of the 12C(d, 3He)11B(g.s.) Reaction at 80 MeV

NUCLEAR REACTIONS 12C(d, 3He), E=80 MeV; calculated σ(θ). 11B deduced S. DWBA.

doi: 10.1103/PhysRevC.13.1388
Citations: PlumX Metrics


1976WU01      Phys.Lett. 60B, 423 (1976)

J.R.Wu, C.C.Chang

Pre-Equilibrium Decay in the Exciton Model

NUCLEAR REACTIONS 54Fe(p, p'X), E=39, 62 MeV; calculated pre-equilibrium decay.

doi: 10.1016/0370-2693(76)90697-3
Citations: PlumX Metrics


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