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2021JO03      Phys.Rev. C 104, 024612 (2021)

R.C.Johnson

Three-body model of the d+A system in an antisymmetrized, translationally invariant many nucleon theory

doi: 10.1103/PhysRevC.104.024612
Citations: PlumX Metrics


2021MO20      J.Phys.(London) G48, 095102 (2021)

L.Moschini, N.K.Timofeyuk, R.C.Johnson

Perturbative correction to the adiabatic approximation for (d, p) reactions

NUCLEAR REACTIONS 10Be(d, p), E=40.9, 71 MeV; 55Ni(d, p), E=40 MeV; 40,48Ca(d, p), E=56 MeV; calculated σ(θ). Comparison with available data.

doi: 10.1088/1361-6471/ac105d
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2020CA32      Eur.Phys.J. A 56, 300 (2020)

P.Capel, R.C.Johnson, F.M.Nunes

Study of cluster structures in nuclei through the ratio method

NUCLEAR REACTIONS Pb(11Be, X), E=69 MeV/nucleon; 12C(11Be, X), E=67 MeV/nucleon; analyzed available data; deduced σ(θ), the ratio of angulardistributions for different reaction channels, viz. elastic scattering and breakup, which cancels most of the dependence on the reaction mechanism, in particular it is insensitive to the choice of optical potentials that simulate the projectile-target interaction using Recoil Excitation and Breakup (REB) model.

doi: 10.1140/epja/s10050-020-00310-w
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2019DI09      Phys.Rev. C 99, 064612 (2019)

M.J.Dinmore, N.K.Timofeyuk, J.S.Al-Khalili, R.C.Johnson

Effects of an induced three-body force in the incident channel of (d, p) reactions

NUCLEAR REACTIONS 40Ca(d, p)41Ca, E=11.8, 20, 56 MeV; calculated differential σ(θ, E) using the adiabatic distorted-wave approximation (ADWA) with and without first-order contribution of induced three-body (I3B) force. Comparison with experimental data.

doi: 10.1103/PhysRevC.99.064612
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2019JO02      Phys.Rev. C 99, 044608 (2019)

R.C.Johnson

Antisymmetrized, translationally invariant theory of the nucleon optical potential

doi: 10.1103/PhysRevC.99.044608
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2017JO08      Phys.Rev. C 95, 064610 (2017)

R.C.Johnson

Translation invariance and antisymmetry in the theory of the nucleon optical model

doi: 10.1103/PhysRevC.95.064610
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2016CO06      Phys.Rev. C 93, 054621 (2016)

F.Colomer, P.Capel, F.M.Nunes, R.C.Johnson

Extension of the ratio method to low energy

NUCLEAR REACTIONS 12C, 40Ca, 208Pb(11Be, X), E=20 MeV/nucleon; analyzed ratio method at low energies by calculating ratio of the breakup angular distribution and the summed angular distribution (includes elastic, inelastic, and breakup). Continuum discretized coupled channel method and Coulomb corrected dynamical eikonal approximation. Relevance to features of the original halo wave function from the Ratio method.

doi: 10.1103/PhysRevC.93.054621
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2016LA20      Phys.Rev. C 94, 021602 (2016)

J.A.Lay, R.de Diego, R.Crespo, A.M.Moro, J.M.Arias, R.C.Johnson

Evidence of strong dynamic core excitation in 19C resonant break-up

NUCLEAR REACTIONS 1H(19C, X), E=70 MeV/nucleon; calculated differential σ(θ) for the first and the second 5/2+ resonance using XCDCC and XDDWBA approaches in valence-core model; deduced role of core excitations in the resonant breakup of 19C. Comparison with experimental data.

NUCLEAR STRUCTURE 19C; calculated levels, J, π using shell-model with OXBASH and the WBP interaction, and within semimicroscopic core-plus-valence-particle model (P-AMD) using 18C as an inert core. Comparison with experimental data.

doi: 10.1103/PhysRevC.94.021602
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2015JO06      Phys.Rev. C 91, 054604 (2015)

R.C.Johnson

Spin dependence of the incident channel distorted wave in the theory of the A(d, p)B reaction

doi: 10.1103/PhysRevC.91.054604
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2014JO02      Phys.Rev. C 89, 024605 (2014)

R.C.Johnson, N.K.Timofeyuk

Adiabatic model of (d, p) reactions with explicitly energy-dependent nonlocal potentials

NUCLEAR REACTIONS 16O(d, p), E=15 MeV; 36Ar(d, p), E=9.162 MeV; 40Ca(d, p), E=11.8 MeV; calculated local adiabatic deuteron potentials, σ(θ) with energy-dependent Giannini-Ricco-Zucchiatti (GRZ), energy independent Giannini-Ricco (GR), nonlocal optical nucleon potentials, and energy-dependent local potential CH89. Adiabatic distorted-wave approximation (ADWA) approach. Comparison with experimental data.

doi: 10.1103/PhysRevC.89.024605
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2013CA21      Phys.Rev. C 88, 044602 (2013)

P.Capel, R.C.Johnson, F.M.Nunes

The ratio method: A new tool to study one-neutron halo nuclei

NUCLEAR REACTIONS 12C(11Be, X), E=67 MeV/nucleon; 208Pb(11Be, X), E=69 MeV/nucleon; Pb(19C, X), E=67 MeV/nucleon; analyzed ratio of breakup σ(θ) and summed σ(θ) from elastic, inelastic and breakup channels; investigated new σ ratio method to analyze structure of one-neutron halo nuclei. Recoil excitation and breakup model (REB) with dynamical eikonal approximation (DEA).

doi: 10.1103/PhysRevC.88.044602
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2013CU01      Phys.Rev. C 87, 054601 (2013)

E.S.Cunningham, J.S.Al-Khalili, R.C.Johnson

Effect of spin-spin interactions on nucleon-nucleus scattering

NUCLEAR REACTIONS 10B(p, p), E=200 MeV; calculated polarization transfer coefficient DNN as a function of angle using spin-spin interaction in the optical potential. Spin-spin tensors evaluated with DWBA. Folding model using realistic effective nucleon-nucleon interaction. Local and nonlocal spin-spin tensor interactions. Effect of parameters of the model used to describe the nuclear structure. Comparison with experimental data.

doi: 10.1103/PhysRevC.87.054601
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2013HL01      Phys.Rev. C 88, 064608 (2013)

L.Hlophe, Ch.Elster, R.C.Johnson, N.J.Upadhyay, F.M.Nunes, G.Arbanas, V.Eremenko, J.E.Escher, I.J.Thompson

Separable representation of phenomenological optical potentials of Woods-Saxon type

NUCLEAR REACTIONS 48Ca, 132Sn, 208Pb(n, X), E=0-50 MeV; calculated partial wave S matrices, separable representations of two-body transition matrix elements and potentials. Ernst-Shakin-Thaler (EST) scheme with CH89 potential.

doi: 10.1103/PhysRevC.88.064608
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2013PA20      Phys.Rev. C 87, 064613 (2013)

D.Y.Pang, N.K.Timofeyuk, R.C.Johnson, J.A.Tostevin

Rapid convergence of the Weinberg expansion of the deuteron stripping amplitude

NUCLEAR REACTIONS 132Sn(d, p), E=30, 100 MeV; calculated σ(θ) using Weinberg distorted wave components. Weinberg states expansion method. Comparison with continuum discretized coupled channels (CDCC) calculations.

doi: 10.1103/PhysRevC.87.064613
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2013TI02      Phys.Rev.Lett. 110, 112501 (2013);Pub.Note Phys.Rev.Lett. 110, 139901 (2013)

N.K.Timofeyuk, R.C.Johnson

Nonlocality in Deuteron Stripping Reactions

NUCLEAR REACTIONS 40Ca(d, p), E=11.8 MeV; analyzed available data; deduced a method for the analysis of deuteron stripping reactions.

doi: 10.1103/PhysRevLett.110.112501
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2013TI04      Phys.Rev. C 87, 064610 (2013)

N.K.Timofeyuk, R.C.Johnson

Nonlocality in the adiabatic model of A(d, p)B reactions

NUCLEAR REACTIONS 16O, 36Ar, 40Ca(d, p), E=9-15 MeV; calculated σ(θ), Perey factor, local potential. Calculated βn coefficients, moments and effective nonlocality range in A=16, 40, 208 mass range. Effect on spectroscopic factors and ANCs. ADWA theory with nonlocality of nucleon optical potential included in a consistent way together with the deuteron breakup. Deviation from E(d)/2 rule on theoretical cross sections.

doi: 10.1103/PhysRevC.87.064610
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2011CU03      Phys.Rev. C 84, 041601 (2011)

E.S.Cunningham, J.S.Al-Khalili, R.C.Johnson

Role of the tensor exchange potential in nucleon-nucleus scattering

NUCLEAR REACTIONS 10B(p, p), E=200 MeV; calculated spin-spin tensor interactions, polarization transfer coefficient DNN. Distorted-wave Born approximation. Comparison with experimental data.

doi: 10.1103/PhysRevC.84.041601
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2011ES09      Nucl.Phys. B(Proc.Supp.) S221, 364 (2011)

J.Esterline, V.M.Gehman, K.Gusey, T.Hossbach, R.A.Johnson, K.Kazkaz, J.Kephart, M.Kidd, G.King, M.G.Marino, A.G.Schubert, M.Shirchenko, J.Thompson, V.Timkin, B.White, the Majorana Collaboration

The Majorana Experiment

doi: 10.1016/j.nuclphysbps.2011.10.016
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2010EL09      Phys.Rev. C 82, 054610 (2010)

S.R.Elliott, V.E.Guiseppe, B.H.LaRoque, R.A.Johnson, S.G.Mashnik

Fast-neutron activation of long-lived isotopes in enriched Ge

NUCLEAR REACTIONS 76Ge(n, X)54Mn/57Co/60Co/65Zn/68Ge, E=0-700 MeV; measured Eγ, Iγ, production rates, pulsed neutron beam. 70,72,73,74,76Ge(n, X)54Mn/57Co/60Co/65Zn/68Ge, E=10-2000 MeV; calculated production σ. Comparison with cross section calculations based on based on CEM03.02. Predicted cosmogenic production rates of 54Mn, 57,60Co, 65Zn and 68Ge isotopes. Relevance to background radiation in Ge detectors used in double-beta decay experiments.

doi: 10.1103/PhysRevC.82.054610
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2010NG02      Phys.Rev. C 82, 014611 (2010)

N.B.Nguyen, F.M.Nunes, R.C.Johnson

Finite-range effects in (d, p) reactions

NUCLEAR REACTIONS 12C, 48Ca, 69Ga, 86Kr, 90Zr, 124Sn, 208Pb(d, p), E=2-80 MeV; calculated σ(θ) using adiabatic distorted-wave approximation (ADWA) and local energy approximation (LEA). Deuteron breakup and finite range effects. Comparison with experimental data.

doi: 10.1103/PhysRevC.82.014611
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2009JO06      Phys.Rev. C 80, 044616 (2009)

R.C.Johnson

Derivation of a formula for the A(d, p)B transition amplitude from the Faddeev equations of three-body scattering theory

doi: 10.1103/PhysRevC.80.044616
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2009MO39      Phys.Rev. C 80, 064606 (2009)

A.M.Moro, F.M.Nunes, R.C.Johnson

Theory of (d, p) and (p, d) reactions including breakup: Comparison of methods

NUCLEAR REACTIONS 11Be(p, d), E=38.4 MeV/nucleon; 10Be(d, p), E=12.5 MeV/nucleon; calculated σ and σ(θ) using continuum discretized coupled channel (CDCC) and full three body integral (AGS) equations. Comparison with experimental data.

doi: 10.1103/PhysRevC.80.064606
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2008RO16      Phys.Rev. C 77, 064609 (2008)

M.Rodriguez-Gallardo, J.M.Arias, J.Gomez-Camacho, R.C.Johnson, A.M.Moro, I.J.Thompson, J.A.Tostevin

Four-body continuum-discretized coupled-channels calculations using a transformed harmonic oscillator basis

NUCLEAR REACTIONS 12C(6He, 6He), E=229.8 MeV; 64Zn(6He, 6He), E=10.0, 13.6 MeV; 208Pb(6He, 6He), E=22 MeV; calculated energy spectra, σ(θ). Comparison with experimental data.

doi: 10.1103/PhysRevC.77.064609
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2007AL08      Phys.Rev. C 75, 024608 (2007)

J.S.Al-Khalili, R.Crespo, R.C.Johnson, A.M.Moro, I.J.Thompson

Few-body multiple scattering calculations for 6He on protons

NUCLEAR REACTIONS 1H(α, α), E=699 MeV/nucleon; 1H(6He, 6He), E=717 MeV/nucleon; calculated elastic σ(θ). Multiple scattering expansion, comparison with data.

doi: 10.1103/PhysRevC.75.024608
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2007RO29      Eur.Phys.J. Special Topics 150, 51 (2007)

M.Rodriguez-Gallardo, J.M.Arias, J.Gomez-Camacho, R.C.Johnson, A.M.Moro, I.J.Thompson, J.A.Tostevin

Continuum effects: Structure and reactions of 6He

NUCLEAR STRUCTURE 6He; calculated B(E1), B(E2) distributions using the Transformed Harmonic Oscillator method.

NUCLEAR REACTIONS 12C(6He, 6He), E=229.8 MeV; calculated elastic scattering σ(θ).

doi: 10.1140/epjst/e2007-00264-x
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2007TI02      Phys.Rev. C 75, 034302 (2007)

N.K.Timofeyuk, P.Descouvemont, R.C.Johnson

Isospin symmetry in mirror α decays

NUCLEAR STRUCTURE 7Li, 7Be, 11B, 11C, 19F, 19Ne; calculated mirror states asymptotic normalization coefficients, α resonance widths.

doi: 10.1103/PhysRevC.75.034302
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2007WA46      Nat.Phys. 3, 836 (2007)

P.M.Walker, R.C.Johnson

Two-proton radioactivity: Caught in the act

RADIOACTIVITY 45Fe(2p); measured decay products, Ep, Ip; deduced decay constant, branching ratio. Comparison with available data.

doi: 10.1038/nphys787
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2006TI08      Eur.Phys.J. A 27, Supplement 1, 269 (2006)

N.K.Timofeyuk, P.Descouvemont, R.C.Johnson

Relation between proton and neutron asymptotic normalization coefficients for light mirror nuclei and its relevance for nuclear astrophysics

doi: 10.1140/epja/i2006-08-041-6
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2005GA11      Phys.Rev. C 71, 044606 (2005)

A.Garcia-Camacho, R.C.Johnson, J.A.Tostevin

Improved implementation of the transfer-to-the-continuum method for single-neutron knockout reactions and the validity of standard approximations

NUCLEAR REACTIONS 9Be(n, X), (p, X), E=0-100 MeV; calculated total σ. 9Be(34Si, 33SiX), E=73 MeV/nucleon; 9Be(15C, 14CX), E=54 MeV/nucleon; calculated neutron knock-out σ, parallel momentum distributions. Transfer-to-continuum direct reaction model.

doi: 10.1103/PhysRevC.71.044606
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2005GA52      Phys.Rev. C 72, 044603 (2005)

A.Garcia-Camacho, R.C.Johnson, J.A.Tostevin

Polarization observables and spin-dependent distortion effects in single-nucleon knockout reactions

NUCLEAR REACTIONS 9Be(34Si, 33SiX), E=70 MeV/nucleon; 9Be(17C, 16CX), E=60 MeV/nucleon; calculated polarization observables, effects of nucleon-target spin-orbit distortions. Transfer-to-the-continuum direct reaction model.

doi: 10.1103/PhysRevC.72.044603
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2005ST01      Phys.Rev. C 71, 014612 (2005)

E.J.Stephenson, R.C.Johnson, F.Sammarruca

Inclusion of nonspherical components of the Pauli blocking operator in (p, p') reactions

NUCLEAR REACTIONS 40Ca(p, p'), E=100, 200 MeV; calculated σ(θ), analyzing powers. Nonspherical Pauli blocking operator.

doi: 10.1103/PhysRevC.71.014612
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2004ZH23      J.Phys.(London) G30, 1153 (2004)

Q.Zhao, J.S.Al-Khalili, R.C.Johnson

A quark model framework for the study of nuclear medium effects

NUCLEAR REACTIONS 2H(γ, π0), E=300 MeV; calculated σ(θ), medium effects. Quark model framework, comparison with data.

doi: 10.1088/0954-3899/30/9/014
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2003TI13      Phys.Rev.Lett. 91, 232501 (2003)

N.K.Timofeyuk, R.C.Johnson, A.M.Mukhamedzhanov

Relation between Proton and Neutron Asymptotic Normalization Coefficients for Light Mirror Nuclei and its Relevance to Nuclear Astrophysics

NUCLEAR STRUCTURE 6,7,8Li, 7Be, 8,11,12B, 11,12,13C, 12,13,14,15N, 15,16,17O, 17F, 22,23Ne, 22,26,27Mg, 23Al, 26Si, 27P; calculated overlap integrals, proton and neutron mirror asymptotic normalization coefficients. Astrophysical implications discussed.

doi: 10.1103/PhysRevLett.91.232501
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2002GR10      Phys.Rev. C65, 044612 (2002)

L.V.Grigorenko, R.C.Johnson, I.J.Thompson, M.V.Zhukov

Two-Proton Events in the 17F(p, 2p)16O Reaction

NUCLEAR REACTIONS 1H(17F, 16O), E=33, 44 MeV; calculated two-proton production σ, contribution from 18Ne excited state decay. Comparison with data.

doi: 10.1103/PhysRevC.65.044612
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2002GR25      Eur.Phys.J. A 15, 125 (2002)

L.V.Grigorenko, R.C.Johnson, I.G.Mukha, I.J.Thompson, M.V.Zhukov

Three-body decays of light nuclei: 6Be, 8Li, 9Be, 12O, 16Ne, and 17Ne

NUCLEAR STRUCTURE 8Li, 6,9Be, 12O, 16Ne; calculated two-proton decay related particle spectra, level widths. Comparisons with data.

RADIOACTIVITY 8Li, 6,9Be, 12O, 16Ne(2p); calculated two-proton decay related particle spectra, level widths. Comparisons with data.

doi: 10.1140/epja/i2001-10239-3
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2002MC09      Nucl.Phys. B(Proc.Supp.) S112, 226 (2002)

K.S.McFarland, G.P.Zeller, T.Adams, A.Alton, S.Avvakumov, L.de Barbaro, P.de Barbaro, R.H.Bernstein, A.Bodek, T.Bolton, J.Brau, D.Buchholz, H.Budd, L.Bugel, J.Conrad, R.B.Drucker, B.T.Fleming, R.Frey, J.A.Formaggio, J.Goldman, M.Goncharov, D.A.Harris, R.A.Johnson, J.H.Kim, S.Koutsoliotas, M.J.Lamm, W.Marsh, D.Mason, J.McDonald, C.McNulty, D.Naples, P.Nienaber, V.Radescu, A.Romosan, W.K.Sakumoto, H.Schellman, M.H.Shaevitz, P.Spentzouris, E.G.Stern, N.Suwonjandee, M.Tzanov, M.Vakili, A.Vaitaitis, U.K.Yang, J.Yu, E.D.Zimmerman

Nuclear Effects and the NuTeV sin2θw Measurement

NUCLEAR REACTIONS Fe(ν, X), (ν-bar, X), E not given; measured ratio of neutral to charged-current σ; deduced electroweak parameter, possible nuclear effects on parton distribution functions. Comparison with model predictions.

doi: 10.1016/S0920-5632(02)01777-2
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2002SU18      Phys.Rev. C66, 014614 (2002)

N.C.Summers, J.S.Al-Khalili, R.C.Johnson

Nonadiabatic Corrections to Elastic Scattering of Halo Nuclei

NUCLEAR REACTIONS 12C(6He, 6He), (11Be, 11Be), E=10 MeV/nucleon; calculated σ(θ), nonadiabatic corrections. Eikonal approximation, partial wave analysis, two-body projectile.

doi: 10.1103/PhysRevC.66.014614
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2002ZE02      Phys.Rev.Lett. 88, 091802 (2002); Erratum Phys.Rev.Lett. 90, 239902(2003)

G.P.Zeller, K.S.McFarland, T.Adams, A.Alton, S.Avvakumov, L.de Barbaro, P.de Barbaro, R.H.Bernstein, A.Bodek, T.Bolton, J.Brau, D.Buchholz, H.Budd, L.Bugel, J.Conrad, R.B.Drucker, B.T.Fleming, R.Frey, J.A.Formaggio, J.Goldman, M.Goncharov, D.A.Harris, R.A.Johnson, J.H.Kim, S.Koutsoliotas, M.J.Lamm, W.Marsh, D.Mason, J.McDonald, C.McNulty, D.Naples, P.Nienaber, A.Romosan, W.K.Sakumoto, H.Schellman, M.H.Shaevitz, P.Spentzouris, E.G.Stern, N.Suwonjandee, M.Tzanov, M.Vakili, A.Vaitaitis, U.K.Yang, J.Yu.E.D.Zimmerman

Precise Determination of Electroweak Parameters in Neutrino-Nucleon Scattering

NUCLEAR REACTIONS 1H(ν, ν'), (ν-bar, ν-bar'), E not given; measured ratio of neutral to charged current σ; deduced electroweak parameter. Comparison with model prediction.

doi: 10.1103/PhysRevLett.88.091802
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2002ZE05      Phys.Rev. D65, 111103 (2002)

G.P.Zeller, K.S.McFarland, T.Adams, A.Alton, S.Avvakumov, L.de Barbaro, P.de Barbaro, R.H.Bernstein, A.Bodek, T.Bolton, J.Brau, D.Buchholz, H.Budd, L.Bugel, J.Conrad, R.B.Drucker, B.T.Fleming, R.Frey, J.A.Formaggio, J.Goldman, M.Goncharov, D.A.Harris, R.A.Johnson, J.H.Kim, S.Koutsoliotas, M.J.Lamm, W.Marsh, D.Mason, J.McDonald, C.McNulty, D.Naples, P.Nienaber, A.Romosan, W.K.Sakumoto, H.Schellman, M.H.Shaevitz, P.Spentzouris, E.G.Stern, N.Suwonjandee, M.Tzanov, M.Vakili, A.Vaitaitis, U.K.Yang, J.Yu, E.D.Zimmerman

Effect of Asymmetric Strange Seas and Isospin-Violating Parton Distribution Functions on sin2θW Measured in the NuTeV Experiment

doi: 10.1103/PhysRevD.65.111103
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2001AL02      Phys.Rev. D63, 012001 (2001)

A.Alton, T.Adams, T.Bolton, J.Goldman, M.Goncharov, D.Naples, R.A.Johnson, M.Vakili, N.Suwonjandee, J.Conrad, B.T.Fleming, J.Formaggio, J.H.Kim, S.Koutsoliotas, C.McNulty, A.Romosan, M.H.Shaevitz, P.Spentzouris, E.G.Stern, A.Vaitaitis, E.D.Zimmerman, R.H.Bernstein, L.Bugel, M.J.Lamm, W.Marsh, P.Nienaber, J.Yu, L.de Barbaro, D.Buchholz, H.Schellman, G.P.Zeller, J.Brau, R.B.Drucker, R.Frey, D.Mason, S.Avvakumov, P.de Barbaro, A.Bodek, H.Budd, D.A.Harris, K.S.McFarland, W.K.Sakumoto, U.K.Yang

Search for Light-to-Heavy Quark Flavor Changing Neutral Currents in νμN and (ν-bar)μN Scattering at the Fermilab Tevatron

NUCLEAR REACTIONS Fe(ν, μ+X), (ν-bar, μ-X), E not given; measured muon spectra, charged current spectra; deduced flavor mixing strength limits, no flavor-changing neutral currents. Sign-selected beams.

doi: 10.1103/PhysRevD.63.012001
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2001AL24      Phys.Rev. D64, 012002 (2001)

A.Alton, T.Adams, T.Bolton, J.Goldman, M.Goncharov, R.A.Johnson, N.Suwonjandee, M.Vakili, J.Conrad, B.T.Fleming, J.Formaggio, J.H.Kim, S.Koutsoliotas, C.McNulty, A.Romosan, M.H.Shaevitz, P.Spentzouris, E.G.Stern, A.Vaitaitis, E.D.Zimmerman, R.H.Bernstein, L.Bugel, M.J.Lamm, W.Marsh, P.Nienaber, J.Yu, L.de Barbaro, D.Buchholz, H.Schellman, G.P.Zeller, J.Brau, R.B.Drucker, R.Frey, D.Mason, J.McDonald, D.Naples, S.Avvakumov, P.de Barbaro, A.Bodek, H.Budd, D.A.Harris, K.S.McFarland, W.K.Sakumoto, U.K.Yang

Observation of Neutral Current Charm Production in νμ Fe Scattering at the Fermilab Tevatron

NUCLEAR REACTIONS Fe(ν, X), E ≈ 154 GeV; 1n, 1H(p, X), E(cm)=38.8 GeV; measured charm production σ.

doi: 10.1103/PhysRevD.64.012002
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2001AM01      Nucl.Phys. A684, 386c (2001)

A.Ambardar, F.Duncan, A.Feltham, G.Hofman, R.R.Johnson, G.Jones, J.B.Lange, M.Pavan, K.J.Raywood, D.Vetterli, J.T.Brack, D.Ottewell, G.R.Smith, M.E.Sevior

Measurement of π p → ππ n Cross-Sections Near Threshold

NUCLEAR REACTIONS 1H(π-, π+π-), (π+, 2π+), E=176-200 MeV; measured σ; deduced reaction matrix elements, scattering lengths.

doi: 10.1016/S0375-9474(01)00403-1
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2001GO43      Phys.Rev. D64, 112006 (2001)

M.Goncharov, T.Adams, A.Alton, T.Bolton, J.Goldman, P.Spentzouris, J.Conrad, B.T.Fleming, J.Formaggio, S.Koutsoliotas, J.H.Kim, C.McNulty, A.Romosan, M.H.Shaevitz, E.G.Stern, A.Vaitaitis, E.D.Zimmerman, R.A.Johnson, M.Vakili, N.Suwonjandee, R.H.Bernstein, L.Bugel, M.J.Lamm, W.Marsh, P.Nienaber, J.Yu, L.de Barbaro, D.Buchholz, H.Schellman, G.P.Zeller, J.Brau, R.B.Drucker, R.Frey, D.Mason, J.E.McDonald, D.Naples, M.Tzanov, S.Avvakumov, P.de Barbaro, A.Bodek, H.Budd, D.A.Harris, K.S.McFarland, W.K.Sakumoto, U.K.Yang

Precise Measurement of Dimuon Production Cross Sections in νμFe and (ν-bar)mFe Deep Inelastic Scattering at the Fermilab Tevatron

NUCLEAR REACTIONS Fe(ν, μ+μ-X), (ν-bar, μ+μ-X), E ≈ 80-270 GeV; measured dimuon production σ. Comparison with previous results.

doi: 10.1103/PhysRevD.64.112006
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2001GR16      Nucl.Phys. A689, 567c (2001)

L.V.Grigorenko, R.C.Johnson, I.G.Mukha, I.J.Thompson, M.V.Zhukov

Two-Proton or Diproton Emission: 19Mg and 48Ni examples

NUCLEAR STRUCTURE 19Mg, 48Ni; calculated two-proton decay energies, widths.

doi: 10.1016/S0375-9474(01)00906-X
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2001GR29      Phys.Rev. C64, 054002 (2001)

L.V.Grigorenko, R.C.Johnson, I.G.Mukha, I.J.Thompson, M.V.Zhukov

Two-Proton Radioactivity and Three-Body Decay: General problems and theoretical approach

NUCLEAR STRUCTURE 6,8,10He, 6,8Li, 6,9Be, 9B, 12C, 12O, 16,17Ne; analyzed three-body decay features. 19Mg, 34Ca, 38,39Ti, 41,42Cr, 45Fe, 48Ni, 54Zn, 58,59Ge, 62,63Se, 66,67Kr; calculated two-proton decay energy, related features. 6Be, 19Mg, 48Ni; calculated proton energy distributions following two-proton decay. Three-body decay model.

doi: 10.1103/PhysRevC.64.054002
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2000AD02      Phys.Rev. D61, 092001 (2000)

T.Adams, A.Alton, T.Bolton, J.Goldman, M.Goncharov, D.Naples, R.A.Johnson, M.Vakili, V.Wu, J.Conrad, B.T.Fleming, J.Formaggio, S.Koutsoliotas, J.H.Kim, C.McNulty, A.Romosan, M.H.Shaevitz, P.Spentzouris, E.G.Stern, A.Vaitaitis, E.D.Zimmerman, R.H.Bernstein, L.Bugel, M.J.Lamm, W.Marsh, P.Nienaber, J.Yu, L.de Barbaro, D.Buchholz, H.Schellman, G.P.Zeller, J.Brau, R.B.Drucker, R.Frey, D.Mason, S.Avvakumov, P.de Barbaro, A.Bodek, H.Budd, D.A.Harris, K.S.McFarland, W.K.Sakumoto, U.K.Yang

Evidence for Diffractive Charm Production in νμFe and (ν-bar)μFe Scattering at the Fermilab Tevatron

NUCLEAR REACTIONS Fe(ν, μ-X), (ν-bar, μ+X), E not given; measured muon spectra, two-muon invariant mass; deduced charm production features, no neutral-current J/ψ production. Comparison with thoery.

doi: 10.1103/PhysRevD.61.092001
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2000FO05      Phys.Rev.Lett. 84, 4043 (2000)

J.A.Formaggio, E.D.Zimmerman, T.Adams, A.Alton, S.Avvakumov, L.de Barbaro, P.de Barbaro, R.H.Bernstein, A.Bodek, T.Bolton, J.Brau, D.Buchholz, H.Budd, L.Bugel, S.Case, J.M.Conrad, R.B.Drucker, B.T.Fleming, R.Frey, J.Goldman, M.Goncharov, D.A.Harris, R.A.Johnson, J.H.Kim, S.Koutsoliotas, M.J.Lamm, W.Marsh, D.Mason, K.S.McFarland, C.McNulty, D.Naples, P.Nienaber, A.Romosan, W.K.Sakumoto, H.M.Schellman, M.H.Shaevitz, P.Spentzouris, E.G.Stern, M.Vakili, A.Vaitaitis, V.Wu, U.K.Yang, J.Yu, G.P.Zeller

Search for a 33.9 MeV/c2 Neutral Particle in Pion Decay

doi: 10.1103/PhysRevLett.84.4043
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2000GR16      Phys.Rev.Lett. 85, 22 (2000)

L.V.Grigorenko, R.C.Johnson, I.G.Mukha, I.J.Thompson, M.V.Zhukov

Theory of Two-Proton Radioactivity with Application to 19Mg and 48Ni

RADIOACTIVITY 6Be, 17Ne, 19Mg, 48Ni(2p); calculated two-proton decay widths. Three-body model, other models compared.

doi: 10.1103/PhysRevLett.85.22
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2000JO15      Phys.Rev. C62, 027603 (2000)

R.C.Johnson, C.J.Goebel

Inequality for Approximate Halo Nuclear Cross Sections

doi: 10.1103/PhysRevC.62.027603
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2000JO21      Prog.Theor.Phys.(Kyoto), Suppl. 140, 33 (2000)

R.Johnson

Scattering and Reactions of Halo Nuclei - A Theorist's Perspective -

NUCLEAR REACTIONS 12C(11Be, 11Be), E=49.3 MeV/nucleon; 12C(19C, 19C), E=30 MeV/nucleon; calculated form factors, σ(θ). 12C, 28Si, 40Ca, 90Zr, 118Sn, 165Ho, 208Pb(d, np), E=140 MeV; calculated σ(E, θ). Adiabatic model, comparisons with data.

doi: 10.1143/PTPS.140.33
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2000LA03      Phys.Rev. C61, 025201 (2000)

J.B.Lange, A.Ambardar, F.Duncan, A.Feltham, G.Hofman, R.R.Johnson, G.Jones, M.Pavan, K.J.Raywood, D.Vetterli, J.T.Brack, D.Ottewell, G.R.Smith, M.E.Sevior

Determination of the π±p → π±π+n Cross Section Near Threshold

NUCLEAR REACTIONS 1H(π-, π+π-), E=176-200 MeV; 1H(π+, 2π+), E=184, 200 MeV; measured total σ; deduced reaction matrix elements, scattering lengths. Heavy baryon chiral perturbation theory. Comparisons with previous results.

doi: 10.1103/PhysRevC.61.025201
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2000TA05      Nucl.Phys. A663-664, 344c (2000)

B.H.Tamminga, T.Adams, A.Alton, C.G.Arroyo, S.Avvakumov, L.de Barbaro, P.de Barbaro, A.O.Bazarko, R.H.Bernstein, A.Bodek, T.Bolton, J.Brau, D.Buchholz, H.Budd, L.Bugel, J.Conrad, R.B.Drucker, J.A.Formaggio, R.Frey, J.Goldman, M.Goncharov, D.A.Harris, R.A.Johnson, J.H.Kim, B.J.King, T.Kinnel, S.Koutsoliotas, M.J.Lamm, W.Marsh, D.Mason, K.S.McFarland, C.McNulty, S.R.Mishra, D.Naples, P.Nienaber, A.Romosan, W.K.Sakumoto, H.Schellman, F.J.Sciulli, W.G.Seligman, M.H.Shaevitz, W.H.Smith, P.Spentzouris, E.G.Stern, M.Vakili, A.Vaitaitis, V.Wu, U.K.Yang, J.Yu, G.P.Zeller, E.D.Zimmerman

Low-Q2 Low-x Structure Function Analysis of CCFR Data for F2

doi: 10.1016/S0375-9474(99)00613-2
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2000VA01      Phys.Rev. D61, 052003 (2000)

M.Vakili, C.G.Arroyo, P.Auchincloss, L.de Barbaro, P.de Barbaro, A.O.Bazarko, R.H.Bernstein, A.Bodek, T.Bolton, H.Budd, J.Conrad, D.A.Harris, R.A.Johnson, J.H.Kim, B.J.King, T.Kinnel, G.Koizumi, S.Koutsoliotas, M.J.Lamm, W.C.Lefmann, W.Marsh, K.S.McFarland, C.McNulty, S.R.Mishra, D.Naples, P.Nienaber, M.J.Oreglia, L.Perera, P.Z.Quintas, A.Romosan, W.K.Sakumoto, B.A.Schumm, F.J.Sciulli, W.G.Seligman, M.H.Shaevitz, W.H.Smith, P.Spentzouris, R.Steiner, E.G.Stern, U.K.Yang, J.Yu

Nuclear Structure Functions in the Large-x Large-Q2 Kinematic Region in Neutrino Deep Inelastic Scattering

NUCLEAR REACTIONS Fe(ν, μ), E not given; analyzed Bjorken x distributions; deduced nuclear effects at large x.

doi: 10.1103/PhysRevD.61.052003
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1999CR02      Phys.Rev. C60, 034007 (1999)

R.Crespo, R.C.Johnson

Probing Halo Nucleus Structure Through Intermediate Energy Elastic Scattering

NUCLEAR REACTIONS 1H(11Li, 11Li), E=800 MeV/nucleon; calculated σ(θ); deduced core recoil effects. Multiple scattering expansion.

doi: 10.1103/PhysRevC.60.034007
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1999RU07      Phys.Rev. C60, 027002 (1999)

S.Rugmai, J.S.Al-Khalili, R.C.Johnson, J.A.Tostevin

Three-Body Effects in the (d, 2He) Charge-Exchange Reaction

NUCLEAR REACTIONS 12C(d, 2p), E=270 MeV; calculated σ(θ); deduced three-body effects. Eikonal description, comparison with distorted wave approach.

doi: 10.1103/PhysRevC.60.027002
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1999TI04      Phys.Rev. C59, 1545 (1999)

N.K.Timofeyuk, R.C.Johnson

Deuteron Stripping and Pick-Up on Halo Nuclei

NUCLEAR REACTIONS 16O(d, p), E=36, 63.2 MeV; 10Be(p, p), E=14 MeV; 10Be(d, p), E=25 MeV; 11Be(p, d), E=35 MeV; calculated σ(θ); deduced recoil excitation, breakup effects.

doi: 10.1103/PhysRevC.59.1545
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1998JO11      J.Phys.(London) G24, 1583 (1998)

R.C.Johnson

Non-Adiabatic Corrections to Elastic Scattering of Halo Nuclei in a Special Model

doi: 10.1088/0954-3899/24/8/037
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1998KE06      Phys.Rev. C58, 3419 (1998)

M.Kermani, P.A.Amaudruz, F.Bonutti, J.T.Brack, P.Camerini, L.Felawka, E.Fragiacomo, E.F.Gibson, N.Grion, G.J.Hofman, R.R.Johnson, E.L.Mathie, S.McFarland, R.Meier, D.Ottewell, K.J.Raywood, R.Rui, M.E.Sevior, G.R.Smith, R.Tacik, and the CHAOS Collaboration

Exclusive Measurements of π±p → π+π±n Near Threshold

NUCLEAR REACTIONS 1H(π-, π-π+), (π+, 2π+), E=223, 243, 264, 284, 305 MeV; measured σ(θ(1)-θ(2)), σ(m2), σ(t), total σ; deduced model parameters.

doi: 10.1103/PhysRevC.58.3419
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1998KI16      Phys.Rev.Lett. 81, 3595 (1998)

J.H.Kim, D.A.Harris, C.G.Arroyo, L.de Barbaro, P.de Barbaro, A.O.Bazarko, R.H.Bernstein, A.Bodek, T.Bolton, H.Budd, J.Conrad, R.A.Johnson, B.J.King, T.Kinnel, M.J.Lamm, W.C.Lefmann, W.Marsh, K.S.McFarland, C.McNulty, S.R.Mishra, D.Naples, P.Z.Quintas, A.Romosan, W.K.Sakumoto, H.Schellman, F.J.Sciulli, W.G.Seligman, M.H.Shaevitz, W.H.Smith, P.Spentzouris, E.G.Stern, M.Vakili, U.K.Yang, J.Yu

Measurement of αs(Q2) from the Gross-Llewellyn Smith Sum Rule

NUCLEAR REACTIONS Fe(ν, X), E not given; analyzed data; deduced strong coupling constant. Gross-Llewellyn Smith sum rule, deep-inelastic scattering.

doi: 10.1103/PhysRevLett.81.3595
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1998LA01      Phys.Rev.Lett. 80, 1597 (1998)

J.B.Lange, F.Duncan, A.Ambardar, A.Feltham, G.Hofman, R.R.Johnson, G.Jones, M.Pavan, K.J.Raywood, D.Vetterli, J.T.Brack, D.Ottewell, G.R.Smith, M.E.Sevior

Determination of the π± p → π±π+n Cross Section Near Threshold

NUCLEAR REACTIONS 1H(π-, nπ+π-), (π+, n2π+), E = 180-200 MeV; measured σ; deduced matrix elements, pion-pion scattering lengths.

doi: 10.1103/PhysRevLett.80.1597
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1998TO05      Nucl.Phys. A630, 340c (1998)

J.A.Tostevin, R.C.Johnson, J.S.Al-Khalili

Manifestation of Halo Size Scattering and Reactions

NUCLEAR REACTIONS 12C(6Li, X), (6He, X), E=800 MeV/nucleon; analyzed reaction σ; deduced projectile radius dependence. 12C(11Be, 11Be), E=49.3 MeV/nucleon; 12C(19C, 19C), E=30 MeV/nucleon; calculated σ(θ).

doi: 10.1016/S0375-9474(97)00772-0
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1998TO08      Phys.Lett. 424B, 219 (1998)

J.A.Tostevin, S.Rugmai, R.C.Johnson, H.Okamura, S.Ishida, N.Sakamoto, H.Otsu, T.Uesaka, T.Wakasa, H.Sakai, T.Niizeki, H.Toyokawa, Y.Tajima, H.Ohnuma, M.Yosoi, K.Hatanaka, T.Ichihara

Coulomb Breakup of Light Composite Nuclei

NUCLEAR REACTIONS 12C, 28Si, 40Ca, 90Zr, 118Sn, 165Ho, 208Pb(d, np), E=140 MeV; measured σ(Ep, θ(p), θ(n)); deduced Coulomb dissociation mechanism. Core-valence model.

doi: 10.1016/S0370-2693(98)00228-7
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1702.


1998TO10      Phys.Rev. C57, 3225 (1998)

J.A.Tostevin, S.Rugmai, R.C.Johnson

Coulomb Dissociation of Light Nuclei

NUCLEAR REACTIONS 12C, 28Si, 40Ca, 90Zr, 118Sn, 165Ho, 208Pb(d, np), E=56, 140, 270 MeV; calculated σ(Ep, θ(n), θ(p)); deduced Coulomb breakup mechanism importance. Comparison with data.

doi: 10.1103/PhysRevC.57.3225
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1997CH32      Nucl.Phys. A624, 275 (1997)

J.A.Christley, J.S.Al-Khalili, J.A.Tostevin, R.C.Johnson

Four-Body Adiabatic Model Applied to Elastic Scattering

NUCLEAR REACTIONS 12C(11Li, 11Li), E=55, 110, 220, 330, 637, 1100 MeV; calculated σ(θ). Four-body adiabatic, eikonal models compared, comparison with data for E=637 MeV.

doi: 10.1016/S0375-9474(97)00360-6
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1997JO16      Phys.Rev.Lett. 79, 2771 (1997)

R.C.Johnson, J.S.Al-Khalili, J.A.Tostevin

Elastic Scattering of Halo Nuclei

NUCLEAR REACTIONS 12C(11Be, 11Be), E=49.3 MeV/nucleon; calculated σ(θ), form factors. 12C(19C, 19C), E=30 MeV/nucleon; calculated form factor, σ(θ); deduced halo structure role.

doi: 10.1103/PhysRevLett.79.2771
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1997SA54      Nucl.Phys. A624, 299 (1997)

A.J.Sargeant, R.C.Johnson, J.A.Tostevin

Symmetrisation in the Semiclassical Theory of Coulomb Excitation

doi: 10.1016/S0375-9474(97)00375-8
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1997SE08      Phys.Rev.Lett. 79, 1213 (1997)

W.G.Seligman, C.G.Arroyo, L.de Barbaro, P.de Barbaro, A.O.Bazarko, R.H.Bernstein, A.Bodek, T.Bolton, H.Budd, J.Conrad, D.A.Harris, R.A.Johnson, J.H.Kim, B.J.King, T.Kinnel, M.J.Lamm, W.C.Lefmann, W.Marsh, K.S.McFarland, C.McNulty, S.R.Mishra, D.Naples, P.Z.Quintas, A.Romosan, W.K.Sakumoto, H.Schellman, F.J.Sciulli, M.H.Shaevitz, W.H.Smith, P.Spentzouris, E.G.Stern, M.Vakili, U.K.Yang, J.Yu

Improved Determination of α(s) from Neutrino-Nucleon Scattering

NUCLEAR REACTIONS Fe(ν, X), E=30-360 GeV; analyzed data; deduced strong coupling constant α(s)(M(Z)2). 1H deduced F2, xF3 structure functions.

doi: 10.1103/PhysRevLett.79.1213
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1996BU09      Phys.Rev. C53, 3009 (1996)

M.P.Bush, J.S.Al-Khalili, J.A.Tostevin, R.C.Johnson

Sensitivity of Reaction Cross Sections to Halo Nucleus Density Distributions

NUCLEAR REACTIONS 1H, 12C, 208Pb(11Li, X), E=800 MeV/nucleon; calculated reaction σ, transparency function vs model parameters ratio; deduced halo nucleus density distribution dependence. Optical limit Glauber model.

doi: 10.1103/PhysRevC.53.3009
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1996CR03      Phys.Rev. C53, 3022 (1996)

R.Crespo, R.C.Johnson, J.A.Tostevin

Mean Field Calculations of Nucleon-Nucleus Scattering

NUCLEAR REACTIONS 16O, 208Pb(p, p), E=100-400 MeV; calculated mean field optical potential real, imaginary parts; deduced corrections to potential multiple scattering expansion first term.

doi: 10.1103/PhysRevC.53.3022
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1996HA04      Phys.Rev. C53, 1074 (1996)

H.Hahn, A.Altman, D.Ashery, G.Gefen, D.R.Gill, R.R.Johnson, R.Levy-Nathansohn, M.A.Moinester, M.Sevior, R.P.Trelle

Pion Absorption on 3He at Low Energies

NUCLEAR REACTIONS 3He(π+, 2p), (π-, np), E=37 MeV; measured (nucleon)(nucleon)-coin; deduced two, three-nucleon, final state interaction components contributions.

doi: 10.1103/PhysRevC.53.1074
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1996JO30      Nucl.Instrum.Methods Phys.Res. A383, 7 (1996)

R.P.Johnson

BaBar Silicon Vertex Tracker

doi: 10.1016/S0168-9002(96)00687-0
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1996NU01      Nucl.Phys. A596, 171 (1996)

F.M.Nunes, I.J.Thompson, R.C.Johnson

Core Excitation in One Neutron Halo Systems

NUCLEAR STRUCTURE 11Be, 13C; calculated levels, rms matter radius, B(λ). 10Li; calculated levels. Core excitation plus coupled channels approach.

doi: 10.1016/0375-9474(95)00398-3
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1996NU02      Nucl.Phys. A609, 43 (1996)

F.M.Nunes, J.A.Christley, I.J.Thompson, R.C.Johnson, V.D.Efros

Core Excitation in Three-Body Systems: Application to 12Be

NUCLEAR STRUCTURE 12Be; calculated ground state binding energy, rms matter radius, levels, 10Be momentum distribution, spectroscopic factors for 11Be+n. Three-body hyperspherical formulation.

NUCLEAR REACTIONS 12Be(p, d), E=30 MeV; calculated σ(θ). Finite-range DWBA, three-body hyperspherical formulation.

doi: 10.1016/S0375-9474(96)00284-9
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1996YA06      J.Phys.(London) G22, 775 (1996)

U.K.Yang, P.Auchincloss, P.de Barbaro, A.Bodek, H.Budd, D.A.Harris, W.K.Sakumoto, W.C.Lefmann, R.Steiner, M.J.Oreglia, B.A.Schumm, R.A.Johnson, M.Nussbaum, L.Perera, M.Vakili, G.Arroyo, A.O.Bazarko, J.Conrad, J.H.Kim, B.J.King, S.Koutsoliotas, C.McNulty, S.R.Mishra, P.Z.Quintas, A.Romosan, F.J.Sciulli, W.G.Seligman, M.H.Shaevitz, P.Spentzouris, E.G.Stern, R.H.Bernstein, G.Koizumi, M.J.Lamm, W.Marsh, K.S.McFarland, T.Bolton, W.B.Lowery, D.Naples, R.B.Drucker, T.Kinnel, W.H.Smith, P.Nienaber

A Measurement of R = σ(L)/σ(T) in Deep Inelastic Neutrino-Nucleon Scattering at the Tevatron


1995CR03      Phys.Rev. C51, 3283 (1995)

R.Crespo, J.A.Tostevin, R.C.Johnson

Spin Dependence of the Scattering of Protons from Halo Nuclei

NUCLEAR REACTIONS 8He(polarized p, p), E=72, 200 MeV/nucleon; calculated σ(θ), analyzing power vs θ; deduced core, valence nucleon contributions to p-8He spin dependence. Kerman, McManus, Thaler multiple scattering expansion, single scattering approximation.

doi: 10.1103/PhysRevC.51.3283
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1995MC04      Phys.Rev.Lett. 75, 3993 (1995)

K.S.McFarland, D.Naples, C.G.Arroyo, P.Auchincloss, P.de Barbaro, A.O.Bazarko, R.H.Bernstein, A.Bodek, T.Bolton, H.Budd, J.Conrad, R.B.Drucker, D.A.Harris, R.A.Johnson, J.H.Kim, B.J.King, T.Kinnel, G.Koizumi, S.Koutsoliotas, M.J.Lamm, W.C.Lefmann, W.Marsh, C.McNulty, S.R.Mishra, P.Nienaber, M.Nussbaum, M.J.Oreglia, L.Perera, P.Z.Quintas, A.Romosan, W.K.Sakumoto, B.A.Schumm, F.J.Sciulli, W.G.Seligman, M.H.Shaevitz, W.H.Smith, P.Spentzouris, R.Steiner, E.G.Stern, M.Vakili, U.K.Yang

Limits on ν(μ)((ν-bar)(μ)) → ν(τ)((ν-bar)(τ)) and ν(μ)((ν-bar)(μ)) → ((ν-bar)(e))ν(e) Oscillations from a Precision Measurement of Neutrino-Nucleon Neutral Current Interactions

doi: 10.1103/PhysRevLett.75.3993
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1995RO02      Nucl.Phys. A584, 362 (1995)

E.J.Roberts, C.V.Sukumar, R.C.Johnson, D.M.Brink

Semi-Classical Analysis of Scattering of Deformed Heavy-Ions Below the Coulomb Barrier

NUCLEAR REACTIONS 58Ni(polarized 7Li, 7Li), E=10 MeV; calculated T20(θ), T21(θ), T22(θ). Semi-classical approach.

doi: 10.1016/0375-9474(94)00458-Y
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1994CH02      J.Phys.(London) G20, 169 (1994)

J.A.Christley, R.C.Johnson, I.J.Thompson

The Fusion of 16O with an Aligned 165Ho Target

NUCLEAR REACTIONS, ICPND 165Ho(16O, X), E ≈ 69-80 MeV; calculated fusion σ(E). Aligned target, coupled-channels method.

doi: 10.1088/0954-3899/20/1/017
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1994CR02      Phys.Rev. C49, 1091 (1994)

R.Crespo, R.C.Johnson, J.A.Tostevin, R.S.Mackintosh, S.G.Cooper

Equivalent Local Potentials to Multiple Scattering Calculations of Nucleon-Nucleus Scattering

NUCLEAR REACTIONS 16O(p, p), E=100, 135, 200 MeV; calculated local phase equivalent potentials. Multiple scattering expansion of the optical potential.

doi: 10.1103/PhysRevC.49.1091
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1994CR07      Phys.Rev. C50, 2995 (1994)

R.Crespo, R.C.Johnson, J.A.Tostevin

Validity of Local Density Prescriptions for Microscopic Calculations of Proton Nucleus Elastic Scattering

NUCLEAR STRUCTURE 16O; calculated σ(θ), vector analyzing power, nucleon elastic scattering; deduced local density approximation validity. Kerman-McManus-Thaler multiple scattering expansion second term, WKB equivalent potential in optical model.

doi: 10.1103/PhysRevC.50.2995
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1994KO06      Phys.Rev. C49, 1715 (1994)

M.Kohler, B.E.King, N.R.Stevenson, R.B.Schubank, Y.M.Shin, R.A.Ristinen, P.Amaudruz, P.P.J.Delheij, D.C.Healey, B.K.Jennings, D.F.Ottewell, G.Sheffer, G.R.Smith, G.D.Wait, J.T.Brack, A.Feltham, M.Hanna, R.R.Johnson, F.M.Rozon, V.Sossi, D.Vetterli, P.Weber, N.Grion, R.Rui, E.L.Mathie, R.Tacik, M.Yeomans, C.A.Gossett, G.J.Wagner, J.M.Lee, K.S.Chung

Vector Analyzing Power iT11 in πd Elastic Scattering at 49 MeV

NUCLEAR REACTIONS 2H(π+, π+), (π-, π-), E=49 MeV; measured iT11(θ); deduced πNP11 amplitude role. Model comparison. Dynamically polarized target, magnetic spectrometer.

doi: 10.1103/PhysRevC.49.1715
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1993CR02      Phys.Rev. C48, 351 (1993)

R.Crespo, R.C.Johnson, J.A.Tostevin

Binding Effects in Proton-Nucleus Elastic Scattering

NUCLEAR REACTIONS 16O(polarized p, p), E=200 MeV; calculated analyzing power vs θ; deduced proton-nucleus binding effects role. Optical model, Kerman, McManus and Thaler expansion.

doi: 10.1103/PhysRevC.48.351
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1993FR02      Phys.Lett. 302B, 18 (1993)

E.Friedman, M.Paul, M.Schechter, A.Altman, B.K.Jennings, G.J.Wagner, N.Fazel, R.R.Johnson, N.Suen, Z.Fraenkel

Integral Cross Sections for π-p Interaction in the 3, 3 Resonance Region

NUCLEAR REACTIONS 1H(π-, X), E=126-202 MeV; measured total, single charge exchange σ. Model comparison.

doi: 10.1016/0370-2693(93)90629-V
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0749.


1993LA17      Phys.Rev. C48, 1307 (1993)

A.Laid, J.A.Tostevin, R.C.Johnson

Deuteron Breakup Effects in Transfer Reactions Using a Weinberg State Expansion Method

NUCLEAR REACTIONS 66Zn(polarized d, p), E=88.2 MeV; calculated σ(θ), iT11(θ). Weinberg state expansion method.

doi: 10.1103/PhysRevC.48.1307
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1993SE10      Phys.Rev. D48, 3987 (1993)

M.E.Sevior, A.Ambardar, J.T.Brack, P.Camerini, F.Duncan, J.Ernst, A.Feltham, N.Grion, R.R.Johnson, G.Koch, O.Meirav, D.F.Ottewell, R.Rui, G.R.Smith, V.Sossi, D.Theis, D.Vetterli

Experimental Study of the Near Threshold π+p → π+π+n Cross Section and Chiral Symmetry

NUCLEAR REACTIONS 1H(π+, 2π+), E=180-200 MeV; measured σ(E); deduced ππ-amplitude, scattering length. Quark loop anomalies dominance model.

doi: 10.1103/PhysRevD.48.3987
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1993SO01      Phys.Lett. 298B, 287 (1993)

V.Sossi, N.Fazel, R.R.Johnson, M.J.Vicente-Vacas

1H(π, 2π) Cross Sections with ππ Scattering Derived from Chiral Lagrangians

NUCLEAR REACTIONS 1H(π+, 2π+), (π-, π-π0), (π+, π+π0), E ≈ 180-370 MeV; calculated σ(E). Isobar model, ππ-scattering from chiral Lagrangians.

doi: 10.1016/0370-2693(93)91822-5
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1992AL10      Nucl.Phys. A546, 622 (1992)

J.S.Al-Khalili, R.C.Johnson

A Three-Body Glauber Model for Polarized Deuteron Scattering at Intermediate Energies

NUCLEAR REACTIONS 58Ni(polarized d, d), E=400, 700 MeV; calculated σ(θ), vector, tensor analyzing power vs θ. Parameter free Glauber model.

doi: 10.1016/0375-9474(92)90548-X
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1992BR02      Phys.Rev. C45, 698 (1992)

J.T.Brack, A.Feltham, R.R.Johnson, G.Jones, M.A.Kermani, O.Meirav, M.Pavan, M.E.Sevior, V.Sossi, D.Vetterli, P.Weber, G.R.Smith, P.A.Amaudruz, D.Healey, D.F.Ottewell, Y.S.Wu, X.Y.Chen, S.Hoibraten, M.D.Kohler, J.J.Kraushaar, R.A.Ristinen, W.R.Smythe, E.L.Mathie, D.M.Yeomans, R.Schubank, N.R.Stevenson, E.F.Gibson

Analyzing Powers for π±-13C(pol) Scattering at T(π) = 100 MeV

NUCLEAR REACTIONS 13C(π+, π+), (π-, π-), (π+, π+'), (π-, π-'), E=100 MeV; measured analyzing power. Polarized target. Model analysis.

doi: 10.1103/PhysRevC.45.698
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1992CR05      Phys.Rev. C46, 279 (1992)

R.Crespo, R.C.Johnson, J.A.Tostevin

Multiple Scattering Theory of Proton Elastic Scattering at Intermediate Energies

NUCLEAR REACTIONS 16O(polarized p, p), E=135-300 MeV; calculated σ(θ), analyzing power vs θ; deduced nonlocalities role. Kerman-McManus optical potential, multiple scattering expansion.

doi: 10.1103/PhysRevC.46.279
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1992KA43      J.Phys.(London) G18, 1967 (1992)

A.Kabir, R.C.Johnson

The Scattering of Polarized 23Na as a Composite of 11B and 12C

NUCLEAR REACTIONS 208Pb(polarized 23Na, 23Na), (polarized 23Na, 23Na'), (polarized 23Na, X), E=170 MeV; calculated σ(θ), analyzing powers; deduced projectile 11B+12C cluster description applicability.

doi: 10.1088/0954-3899/18/12/012
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1992KR11      Phys.Rev. C46, 655 (1992)

R.A.Krauss, J.Alster, D.Ashery, S.Bart, R.E.Chrien, J.C.Hiebert, R.R.Johnson, T.Kishimoto, I.Mardor, Y.Mardor, M.A.Moinester, R.Olshevsky, E.Piasetzky, P.H.Pile, R.Sawafta, R.L.Stearns, R.J.Sutter, R.Weiss, A.I.Yavin

K+ Total Cross Sections on 12C and Medium Effects in Nuclei

NUCLEAR REACTIONS 12C, 2H(K+, X), E at 450-740 MeV/c; measured σ; deduced σ ratio, nuclear medium effects role.

doi: 10.1103/PhysRevC.46.655
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1992ME13      Appl.Radiat.Isot. 43, 1420 (1992)

O.Meirav, M.Adam, E.Boaretto, S.A.Dias, R.R.Johnson, M.Paul, E.Venczel

Measurements of 129I in a Nuclear Power Reactor by Accelerator Mass Spectrometry

doi: 10.1016/0883-2889(92)90020-F
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1992OD02      Nucl.Instrum.Methods Phys.Res. A317, 445 (1992)

J.M.O'Donnell, J.Davis, R.A.DeHaven, E.Gray, R.Johnson, R.E.Lomax, B.J.McCloud, J.A.McGill, C.L.Morris, J.Novak, B.Rusnak, G.Tubb, J.M.Applegate, T.D.Averett, J.Beck, B.G.Ritchie, E.Haebel, D.Kiehlmann, U.Klein, M.Peiniger, P.Schafer, H.Vogel, H.Ward, C.F.Moore

A Superconducting Radio-Frequency Cavity for Manipulating the Phase Space of Pion Beams at LAMPF

NUCLEAR REACTIONS 93Nb(π+, π+), E=50 MeV; 12C(π+, π+'), E=50 MeV; measured spectra. Superconducting radio-frequency cavity, pion beam phase space manipulation.

doi: 10.1016/0168-9002(92)90988-G
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1992SO16      Nucl.Phys. A548, 562 (1992)

V.Sossi, M.J.Iqbal, R.R.Johnson, G.Jones, M.Pavan, F.M.Rozon, M.Sevior, D.Vetterli, P.Weber, G.Sheffer, G.R.Smith, P.Camerini, N.Grion, R.Rui, N.R.Stevenson, M.J.Vicente-Vacas

Pion-Induced Pion Production on Deuterium: A quasifree process

NUCLEAR REACTIONS 2H(π+, π-), E=280 MeV; measured σ(θ(π+), θ(π-), E(π+), E(π-)). Comparison with isobar model with Fermi motion.

doi: 10.1016/0375-9474(92)90642-W
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1992TU01      J.Phys.(London) G18, 367 (1992)

G.Tungate, S.J.Hall, J.Gomez-Camacho, R.C.Johnson

Deviations from Tidal Symmetry in Polarized 7Li Excitation

NUCLEAR REACTIONS 120Sn(polarized 7Li, 7Li'), E=44 MeV; calculated tensor analyzing power; deduced deviations from tidal symmetry.

doi: 10.1088/0954-3899/18/2/017
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1992VE04      Nucl.Phys. A548, 541 (1992)

D.Vetterli, R.R.Johnson, O.Meirav, M.E.Sevior, V.Sossi, P.Weber, P.Camerini, N.Grion, R.Rui, F.M.Rozon, P.Amaudruz, D.Ottewell, G.Sheffer, G.R.Smith, N.R.Stevenson, M.J.Vicente-Vacas

π+π- Coincidence Measurement in the 4He(π+, π+π-) Reaction at T(π+) = 280 MeV

NUCLEAR REACTIONS 4He(π+, π+π-), E=280 MeV; measured σ(θπ+, θπ-, Eπ+, Eπ-); deduced σ.

doi: 10.1016/0375-9474(92)90641-V
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1991CR04      Phys.Rev. C44, R1735 (1991)

R.Crespo, R.C.Johnson, J.A.Tostevin

Multiple Scattering Effects in Proton Nucleus Elastic Scattering at Intermediate Energies

NUCLEAR REACTIONS, ICPND 16O(p, p), E=135-200 MeV; calculated σ(θ), reaction σ(E). Kerman-McManus-Thaler optical potential, second-order corrections.

doi: 10.1103/PhysRevC.44.R1735
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1991FR01      Phys.Lett. 254B, 40 (1991)

E.Friedman, A.Goldring, R.R.Johnson, D.Vetterli, J.Jaki, M.Metzler, B.K.Jennings

Integral Cross Sections for π+p Interaction in the 3, 3 Resonance Region

NUCLEAR REACTIONS 1H(π+, π+), E=125.9-201.7 MeV; measured σ. Transmission method. Phase shift calculations.

doi: 10.1016/0370-2693(91)90392-4
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1991FR04      Phys.Lett. 257B, 17 (1991)

E.Friedman, A.Goldring, R.R.Johnson, O.Meirav, D.Vetterli, P.Weber, A.Altman

Total Reaction Cross Sections for 20-30 MeV Pions and the Anomaly of Pionic Atoms

NUCLEAR REACTIONS C, Ni(π-, X), E=20, 30 MeV; C, Ni(π+, X), E=30 MeV; measured reaction σ. Different potentials in model analyses.

doi: 10.1016/0370-2693(91)90850-P
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1991KA15      J.Phys.(London) G17, L105 (1991)

A.Kabir, R.C.Johnson, M.H.Tostevin

Cluster Folding-Model for Quasi-Elastic Scattering of 23Na from 208Pb

NUCLEAR REACTIONS 208Pb(polarized 23Na, 23Na), E=170 MeV; calculated σ(θ), tensor analyzing power vs θ. Cluster folding model.

doi: 10.1088/0954-3899/17/7/002
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Note: The following list of authors and aliases matches the search parameter R.Johnson: , R.A.JOHNSON, R.C.JOHNSON, R.G.JOHNSON, R.H.JOHNSON, R.P.JOHNSON, R.R.JOHNSON