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NSR database version of April 27, 2024.

Search: Author = M.B.Johnson

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2008GE04      Phys.Rev. C 78, 044003 (2008)

M.T.Gericke, J.D.Bowman, M.B.Johnson

Mott-Schwinger scattering of polarized low energy neutrons up to thermal energies

NUCLEAR REACTIONS ¹H, ^3,4He, ^10,11B, ¹²C, ²⁰Ne, ²⁷Al, ²⁸Si, ⁴⁰Ar, ⁵⁶Fe, ¹²⁰Sn, ²⁰⁸Pb(n, n'), (polarized n, n), E=0-25 meV; calculated analyzing powers.

doi: 10.1103/PhysRevC.78.044003
Citations: PlumX Metrics

2007JO02      Phys.Rev. C 75, 035206 (2007)

M.B.Johnson, B.Z.Kopeliovich, M.J.Leitch, P.L.McGaughey, J.M.Moss, I.K.Potashnikova, I.Schmidt

Nuclear broadening of transverse momentum in Drell-Yan reactions

doi: 10.1103/PhysRevC.75.035206
Citations: PlumX Metrics

2007JO08      Phys.Rev. C 75, 064905 (2007)

M.B.Johnson, B.Z.Kopeliovich, I.Schmidt

Cronin effect in the Drell-Yan reaction

doi: 10.1103/PhysRevC.75.064905
Citations: PlumX Metrics

2006VI06      Phys.Rev. D 74, 054010 (2006)

I.Vitev, T.Goldman, M.B.Johnson

Open charm tomography of cold nuclear matter

NUCLEAR REACTIONS ¹H(p, X), E(cm)=200, 1960 MeV; ¹⁹⁷Au(d, X), E(cm)=200 GeV/nucleon; calculated D-meson yields, correlations, nuclear modification factors.

doi: 10.1103/PhysRevD.74.054010
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2005KO39      Phys.Rev. C 72, 054606 (2005)

B.Z.Kopeliovich, J.Nemchik, I.K.Potashnikova, M.B.Johnson, I.Schmidt

Breakdown of QCD factorization at large Feynman x

NUCLEAR REACTIONS ¹H(p, X), ¹⁹⁷Au(d, X), E(cm)=200 GeV/nucleon; analyzed particle yields, transverse momentum; deduced supression mechanism at large x_F.

doi: 10.1103/PhysRevC.72.054606
Citations: PlumX Metrics

2004JO04      Eur.Phys.J. A 19, Supplement 1, 105 (2004)

M.B.Johnson

Propagation of fast partons in the nuclear medium

doi: 10.1140/epjad/s2004-03-018-8
Citations: PlumX Metrics

2003JO19      Nucl.Phys. A729, 729 (2003)

M.B.Johnson, H.-M.Choi, L.S.Kisslinger

Bubble collisions in a SU(2) model of QCD

doi: 10.1016/j.nuclphysa.2003.09.012
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2003KO04      Phys.Rev. C 67, 014903 (2003)

B.Z.Kopeliovich, J.Raufeisen, A.V.Tarasov, M.B.Johnson

Nuclear effects in the Drell-Yan process at very high energies

NUCLEAR REACTIONS ¹⁹⁷Au(p, X), (d, X), E(cm)=200, 5500 GeV; calculated gluon shadowing, other nuclear effects in Drell-Yan dilepton production. Light-cone color-dipole formalism.

doi: 10.1103/PhysRevC.67.014903
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2002JO02      Phys.Rev. C65, 025203 (2002)

M.B.Johnson, B.Z.Kopeliovich, I.K.Potashnikova, P.L.McGaughey, J.M.Moss, J.C.Peng, G.Garvey, M.Leitch, C.N.Brown, D.M.Kaplan

Energy Loss versus Shadowing in the Drell-Yan Reaction on Nuclei

NUCLEAR REACTIONS ²H, Be, C, Ca, Fe, W(p, X), E at 800 GeV/c; analyzed Drell-Yan production σ; deduced energy loss effects, other reaction mechanism features.

doi: 10.1103/PhysRevC.65.025203
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2001JO03      Phys.Rev. C63, 035203 (2001)

M.B.Johnson, B.Z.Kopeliovich, A.V.Tarasov

Broadening of Transverse Momentum of Partons Propagating Through a Medium

doi: 10.1103/PhysRevC.63.035203
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2001JO09      Phys.Rev.Lett. 86, 4483 (2001)

M.B.Johnson, B.Z.Kopeliovich, I.K.Potashnikova, P.L.McGaughey, J.M.Moss, J.C.Peng, G.T.Garvey, M.J.Leitch, M.R.Adams, D.M.Alde, H.W.Baer, M.L.Bartlett, C.N.Brown, W.E.Cooper, T.A.Carey, G.Danner, G.W.Hoffmann, Y.B.Hsiung, D.M.Kaplan, A.Klein, C.Lee, J.W.Lillberg, R.L.McCarthy, C.S.Mishra, M.J.Wang, and the FNAL E772 Collaboration

Energy Loss of Fast Quarks in Nuclei

NUCLEAR REACTIONS ²H, C, Ca, Fe, W(p, X), E at 800 GeV/c; measured dimuon Drell-Yan yields; deduced quark energy loss in nuclear environment.

doi: 10.1103/PhysRevLett.86.4483
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2001SM07      Phys.Rev. C64, 015502 (2001)

D.A.Smith, J.D.Bowman, B.E.Crawford, C.A.Grossmann, T.Haseyama, M.B.Johnson, A.Masaike, Y.Matsuda, G.E.Mitchell, V.A.Nazarenko, S.I.Penttila, N.R.Roberson, S.J.Seestrom, E.I.Sharapov, L.M.Smotritsky, S.L.Stephenson, S.Tomsovic, V.W.Yuan

Parity Violation in Neutron Resonances of ¹¹⁷Sn

NUCLEAR REACTIONS ¹¹⁷Sn(polarized n, n'), E ≈ 0.8-1100 eV; measured neutron spectra. ¹¹⁷Sn deduced resonance parameters, parity-nonconserving asymmetries, weak spreading width.

doi: 10.1103/PhysRevC.64.015502
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14180.

2000TO10      Phys.Rev. C62, 054607 (2000)

S.Tomsovic, M.B.Johnson, A.C.Hayes, J.D.Bowman

Statistical Theory of Parity Nonconservation in Compound Nuclei

NUCLEAR REACTIONS ²³⁸U, ^{104,105,106,108}Pd(polarized n, X), E not given; calculated compound nuclei weak spreading widths, parity-violating matrix elements. Comparison with data.

NUCLEAR STRUCTURE ²³⁹U, ^{105,106,107,109}Pd; calculated weak spreading widths, parity-violating matrix elements. Comparison with data.

doi: 10.1103/PhysRevC.62.054607
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1999CH10      Phys.Rev. C59, 2627 (1999)

C.M.Chen, D.J.Ernst, M.B.Johnson

Phenomenology of K⁺-Nucleus Scattering

NUCLEAR REACTIONS ⁶Li, ¹²C, ²⁸Si, ⁴⁰Ca(K⁺, X), E at 488-714 MeV/c; analyzed total σ; ⁶Li, ¹²C(K⁺, K⁺), E at 714 MeV/c; analyzed σ(θ); deduced potential parameters, phenomenological density term.

doi: 10.1103/PhysRevC.59.2627
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1999SM03      Phys.Rev. C59, 2836 (1999)

D.A.Smith, J.D.Bowman, B.E.Crawford, C.A.Grossmann, T.Haseyama, M.B.Johnson, A.Masaike, Y.Matsuda, G.E.Mitchell, V.A.Nazarenko, S.I.Penttila, N.R.Roberson, S.J.Seestrom, E.I.Sharapov, L.M.Smotritsky, S.L.Stephenson, V.Yuan

Neutron Resonance Spectroscopy of ¹¹⁷Sn from 1 eV to 1.5 keV

NUCLEAR REACTIONS ¹¹⁷Sn(n, γ), E=1-1500 eV; measured σ(E). ¹¹⁷Sn deduced neutron resonance parameters.

doi: 10.1103/PhysRevC.59.2836
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13748.

1998CH42      Phys.Rev. C58, 3500 (1998)

C.M.Chen, M.B.Johnson, D.J.Ernst

Forward Elastic Amplitudes of High-Energy Pions and Kaons on Nuclei

NUCLEAR REACTIONS ¹²C(π⁺, π⁺), E at 610 MeV/c; calculated scattering amplitudes. ¹²C(π^-, π^-), E at 500-1100 MeV/c; analyzed total σ; deduced nuclear medium effects in forward scattering amplitudes.

doi: 10.1103/PhysRevC.58.3500
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1998JO13      Acta Phys.Pol. B29, 2527 (1998)

M.B.Johnson, V.M.Belyaev

Deep Inelastic Scattering and the Pion Light-Cone Wave Function

1997SA43      Phys.Rev. C56, 1500 (1997)

H.Sarafian, M.A.Kagarlis, M.B.Johnson

Klein-Gordon Equation in a Coupled Channels Description of Elastic and Inelastic Scattering

doi: 10.1103/PhysRevC.56.1500
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1996JO24      Ann.Phys.(New York) 248, 134 (1996)

M.B.Johnson, G.R.Satchler

Characteristics of Local Pion-Nucleus Potentials that are Equivalent to Kisslinger-Type Potentials

NUCLEAR REACTIONS ²⁰⁸Pb(π⁺, π⁺), (π^-, π^-), E=20-291 MeV; ¹⁶O(π^-, π^-), E=50, 162 MeV; calculated equivalent local potentials. ¹⁶O(π⁺, π⁺), E=262 MeV; calculated σ(θ). Krell-Ericson transformation based local equivalents for nonlocal Kisslinger-type potentials.

doi: 10.1006/aphy.1996.0054
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1995CH33      Phys.Rev. C52, R485 (1995)

C.M.Chen, D.J.Ernst, M.F.Jiang, M.B.Johnson

Pion-Nucleus Scattering and Baryon Resonances in the Nuclear Medium

NUCLEAR REACTIONS ²³⁸U(γ, X), E=0.2-1.2 GeV; ¹²C(π, X), E=0.4-1 GeV; analyzed σ(E); deduced baryon resonances induced medium modifications role.

doi: 10.1103/PhysRevC.52.R485
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1995JO03      Phys.Rev. C51, 999 (1995)

M.B.Johnson, J.D.Bowman

Microscopic, Model-Space Approach to Parity Nonconservation in Compound Nuclei

NUCLEAR STRUCTURE ²³⁹U; calculated parity violating interaction mean square matrix element. Microscopic model-space approach.

doi: 10.1103/PhysRevC.51.999
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1995JO16      Phys.Rev. C52, 1022 (1995)

M.B.Johnson, L.S.Kisslinger

Δ(1232) in Nuclei and QCD Sum Rules

doi: 10.1103/PhysRevC.52.1022
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1995KA49      Ann.Phys.(New York) 240, 56 (1995)

M.A.Kagarlis, M.B.Johnson, H.T.Fortune

A Microscopic, Coupled-Channel Theory of Pion Scattering

NUCLEAR REACTIONS ¹⁴C(π⁺, π⁰), (π⁺, π^-), ¹⁶O(π⁺, π^-), E=50-300 MeV; ¹²C(π⁺, π⁺), E=180 MeV; calculated σ(θ). Microscopic coupled-channels theory.

doi: 10.1006/aphy.1995.1042
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1994BA26      Phys.Rev. C49, 2592 (1994)

J.Bartel, M.B.Johnson, M.Singham, W.Stocker

Microscopic Coupled-Channel Description of Pion Inelastic Scattering from Rotational Nuclei

NUCLEAR REACTIONS ¹⁵²Sm(π⁺, π⁺), (π^-, π^-), E not given; calculated σ(θ). Microscopic coupled-channels description.

doi: 10.1103/PhysRevC.49.2592
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1994KA30      Phys.Rev.Lett. 73, 38 (1994)

M.A.Kagarlis, M.B.Johnson

A Theory of Low-Energy Pion Double Charge Exchange

NUCLEAR REACTIONS ¹⁴C(π⁺, π^-), E ≤ 80 MeV; calculated σ(θ); deduced no dibaryon role evidence. Coupled-channels approach.

doi: 10.1103/PhysRevLett.73.38
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1994KH03      Phys.Rev. C50, 1424 (1994)

M.Kh.Khankhasayev, H.Sarafian, M.B.Johnson, Zh.B.Kurmanov

Effect of Pion External Distortion on Low-Energy Pion Double Charge Exchange

NUCLEAR REACTIONS ¹⁴C(π⁺, π^-), (π⁺, π⁰), E=50 MeV; calculated σ(θ); deduced pion external distortions role. Optical potential separable expansion in momentum space.

doi: 10.1103/PhysRevC.50.1424
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1993CH04      Phys.Rev. C47, R9 (1993)

C.M.Chen, D.J.Ernst, M.B.Johnson

Microscopic Approach to Pion-Nucleus Dynamics

NUCLEAR REACTIONS ¹²C(π⁺, π⁺), E=80-226 MeV; calculated σ(θ). First-order optical potential, second-order corrections microscopic estimates.

doi: 10.1103/PhysRevC.47.R9
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1993CH25      Phys.Rev. C48, 841 (1993)

C.M.Chen, D.J.Ernst, M.B.Johnson

High-Energy Pion-Nucleus Elastic Scattering

NUCLEAR REACTIONS ⁴⁰Ca(π^-, π^-), E=180-780 MeV; ¹²C(π⁺, π⁺), (π^-, π^-), E at 800 MeV/c; calculated σ(θ). A 'model-exact' calculation, lowest-order microscopic optical model.

doi: 10.1103/PhysRevC.48.841
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1993HA33      Phys.Rev. C48, 2190 (1993)

J.Haidenbauer, K.Holinde, M.B.Johnson

Coupled-Channel Potential for Nucleons and Deltas

NUCLEAR REACTIONS ¹H(n, n), E ≤ 350 MeV; analyzed phase shifts vs E; deduced scattering length, effective range. ²H deduced binding energy, quadrupole moment, D-state probability, ΔΔ probability. Coupled channels, NN-, ΔΔ-potential.

doi: 10.1103/PhysRevC.48.2190
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1993JO05      Yad.Fiz. 56, No 7, 206 (1993); Phys.Atomic Nuclei 56, 972 (1993)

M.B.Johnson

The Pion-Nucleus Interaction at High Energy

NUCLEAR REACTIONS ⁴⁰Ca(π^-, π^-), (π⁺, π⁺), E at 800 MeV/c; calculated σ(θ). Eikonal theory.

1993JO16      Ann.Rev.Nucl.Part.Sci. 43, 165 (1993)

M.B.Johnson, C.L.Morris

Pion Double Charge Exchange in Nuclei

NUCLEAR REACTIONS ^12,13,14C, ¹⁸O, ²⁶Mg, ²⁷Al, ³²S, ^40,42,44,48Ca, ⁵¹V, ⁵⁶Fe, ⁵⁹Co, ⁸⁰Se, ⁹³Nb, ¹¹⁵In, ¹³⁸Ba, ¹⁹⁷Au, ²⁰⁸Pb(π⁺, π^-), E<600 MeV; analyzed available data deduced σ(θ), properties of giant resonances.

doi: 10.1146/annurev.ns.43.120193.001121
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1993SA28      Phys.Rev. C48, 1988 (1993)

H.Sarafian, M.B.Johnson, E.R.Siciliano

Medium Modification of Meson Propagation Between Two Nucleons in Finite Nuclei

NUCLEAR REACTIONS ¹⁴C(π⁺, π^-), E=10-110 MeV; calculated σ(θ) ratio for plane-wave, distorted wave; deduced impact on pion-nucleon scattering amplitudes.

doi: 10.1103/PhysRevC.48.1988
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1993SC33      Acta Phys.Pol. B24, 1697 (1993)

C.Schutz, J.W.Durso, K.Holinde, M.B.Johnson, B.C.Pearce, J.Speth

Pion-Nucleon Interaction in Free Space and Its Medium Modifications

1992BA64      Phys.Lett. 296B, 5 (1992)

J.Bartel, M.B.Johnson, M.K.Singham, W.Stocker

Pion Inelastic Scattering and the Neutron Density in ¹⁵²Sm

NUCLEAR REACTIONS ¹⁵²Sm(π⁺, π⁺), (π^-, π^-), (π⁺, π⁺'), (π^-, π^-'), E=180 MeV; analyzed σ(θ). ¹⁵²Sm deduced neutron radius features, n-, p-deformations.

doi: 10.1016/0370-2693(92)90795-6
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1992BO01      Phys.Rev.Lett. 68, 780 (1992)

J.D.Bowman, G.T.Garvey, C.R.Gould, A.C.Hayes, M.B.Johnson

Parity Violation in the Compound Nucleus: The Role of Distant States

NUCLEAR STRUCTURE ²³²Th; calculated parity violating asymmetry; deduced distant states role.

doi: 10.1103/PhysRevLett.68.780
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1992HA13      Phys.Rev. C45, 2055 (1992)

J.Haidenbauer, K.Holinde, M.B.Johnson

Folded-Diagram Nucleon-Nucleon Potential for Application to the Many-Body Problem

NUCLEAR REACTIONS ¹H(n, n), E ≤ 300 MeV; calculated phase shifts vs E. Energy independent nucleon-nucleon potential, folded-diagram expansion.

NUCLEAR STRUCTURE ²H; calculated electric, magnetic form factors. Impulse approximation, folded diagram potential.

doi: 10.1103/PhysRevC.45.2055
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1992SA02      Phys.Rev. C45, 2027 (1992)

G.R.Satchler, M.K.Singham, M.B.Johnson

Comment on ' Pion Scattering from ³⁹K and ⁵⁸Ni ' and Virtual Excitation Effects on Elastic Scattering

NUCLEAR REACTIONS ⁵⁸Ni(π⁺, π⁺), (π⁺, π⁺'), E=162 MeV; calculated σ(θ); deduced weak virtual excitation effects. Coupled-channels, phenomenological, microscopic interaction models.

doi: 10.1103/PhysRevC.45.2027
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1991JO13      Phys.Rev.Lett. 67, 310 (1991)

M.B.Johnson, J.D.Bowman, S.H.Yoo

Theory of Parity Nonconservation in Compound-Nuclear States

NUCLEAR STRUCTURE ²³⁹U; calculated parity violating matrix element rms value. Standard parity violating interaction.

doi: 10.1103/PhysRevLett.67.310
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1991JO14      Phys.Rev. C44, 2480 (1991)

M.B.Johnson, E.Oset, H.Sarafian, E.R.Siciliano, M.Vicente-Vacas

Meson Exchange Currents in Pion Double Charge Exchange

NUCLEAR REACTIONS ¹⁴C(π⁺, π^-), E=10-110 MeV; Ca(π⁺, π^-), E=50 MeV; calculated σ(θ=0°) vs E; deduced meson exchange contribution mass dependence. Weinberg Lagrangian.

doi: 10.1103/PhysRevC.44.2480
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1990ER01      Phys.Lett. 237B, 164 (1990)

D.J.Ernst, M.B.Johnson

Delta-Nucleus Coulomb Interaction in Resonant-Energy Pion-Nucleus Elastic Scattering

NUCLEAR REACTIONS ⁴⁰Ca(π⁺, π⁺), (π^-, π^-), E=180 MeV; analyzed σ(θ); deduced Δ-nucleus potential parameters. Mean-spectral approximation.

doi: 10.1016/0370-2693(90)91422-8
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1990JO05      Phys.Rev. C42, 1878 (1990)

M.B.Johnson, J.Haidenbauer, K.Holinde

Meson Retardation, Three-Body Forces, and Medium Modifications to the Nucleon-Nucleon Interaction

NUCLEAR STRUCTURE ³H; calculated triton binding energy. ²H; calculated binding energy, quadrupole moment, D-state probability. Meson retardation, three-body forces, medium modifications.

doi: 10.1103/PhysRevC.42.1878
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1990SI18      Ann.Phys.(New York) 203, 1 (1990)

E.R.Siciliano, M.B.Johnson, H.Sarafian

Dynamical Correlations in Low-Energy Pion Double Charge Exchange

NUCLEAR REACTIONS ¹⁴C(π⁺, π^-), E=10-100 MeV; calculated σ(θ); deduced different mechanism contributions. Fixed-nucleon field theory.

doi: 10.1016/0003-4916(90)90028-M
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1989BA75      Ann.Phys.(New York) 196, 89 (1989)

J.Bartel, M.B.Johnson, M.K.Singham

Pion Single-Charge-Exchange Scattering and Nuclear Structure in Deformed Nuclei

NUCLEAR REACTIONS ¹⁶⁵Ho(π⁺, π⁺), (π⁺, π⁺'), (π^-, π^-), (π^-, π^-'), (π^-, π⁰), E=165 MeV; calculated σ(θ). Coupled-channel optical model.

doi: 10.1016/0003-4916(89)90046-8
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1989JO07      Czech.J.Phys. B39, 822 (1989)

M.B.Johnson

Pion Scattering and Nuclear Dynamics

doi: 10.1007/BF01599195
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1989WI20      Phys.Rev. C40, 2745 (1989)

A.Wirzba, H.Toki, E.R.Siciliano, M.B.Johnson, R.Gilman

Pion Double Charge Exchange in the Δ₃₃ Resonance Region

NUCLEAR REACTIONS ¹⁸O(π⁺, π⁺), (π^-, π^-), E=164 MeV; ^16,18O(π⁺, π^-), E=164 MeV; calculated σ(θ).

doi: 10.1103/PhysRevC.40.2745
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1988AL20      Phys.Rev. C38, 109 (1988)

W.M.Alberico, A.De Pace, M.Ericson, M.B.Johnson, A.Molinari

Spin-Isospin Nuclear Responses with Hadronic Probes

NUCLEAR REACTIONS ⁴⁰Ca(³He, t), E not given; calculated σ(θt, Et). RPA spin-isospin nuclear responses.

doi: 10.1103/PhysRevC.38.109
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1988JO06      Phys.Rev. C38, 386 (1988)

M.B.Johnson, G.Wenes

Effect of Surface Fluctuations on the Nuclear Density

NUCLEAR STRUCTURE ⁴⁰Ca; calculated rms charge radius, charge density diffuseness; deduced surface fluctuations role.

doi: 10.1103/PhysRevC.38.386
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1988OS02      Nucl.Phys. A483, 514 (1988)

E.Oset, M.J.Vicente-Vacas, M.B.Johnson, D.Strottman, H.T.Fortune, R.Gilman

The Δ Interaction Contribution to Double Charge Exchange

NUCLEAR REACTIONS ¹⁸O(π⁺, π^-), E=130-230 MeV; calculated σ(θ); deduced isobar interaction contribution.

doi: 10.1016/0375-9474(88)90082-6
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1987AL04      Phys.Lett. 183B, 135 (1987)

W.M.Alberico, A.De Pace, M.Ericson, M.B.Johnson, A.Molinari

Spin-Isospin Surface Responses

NUCLEAR REACTIONS Ca, Pb(p, p'), E=20-100 MeV; calculated spin-isospin longitudinal, transverse responses, free isovector response ratio. RPA calculations.

doi: 10.1016/0370-2693(87)90426-6
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1987KI18      Phys.Rev. C36, 1081 (1987)

L.S.Kisslinger, M.B.Johnson

European Muon Collaboration Effect in the Hybrid Quark-Hadron Model

NUCLEAR STRUCTURE Fe, ²H; calculated structure function ratio.

doi: 10.1103/PhysRevC.36.1081
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1986AL13      Phys.Rev. C34, 977 (1986)

W.M.Alberico, A.Molinari, A.De Pace, M.Ericson, M.B.Johnson

Random Phase Approximation Spin-Isospin Nuclear Response in the Deep Inelastic Region

NUCLEAR REACTIONS ⁴⁰Ca(e, e'), E not given; calculated longitudinal response, transverse dynamic structure factors. RPA.

doi: 10.1103/PhysRevC.34.977
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1986ER11      Phys.Lett. 182B, 242 (1986)

D.J.Ernst, D.R.Giebink, M.B.Johnson

Dispersive Effects in Low Energy Pion-Nucleus Scattering

NUCLEAR REACTIONS ¹⁶O(π⁺, π⁺), E=40, 60 MeV; calculated σ(θ); deduced pion nucleus scattering dispersive effects. Three calculational methods.

doi: 10.1016/0370-2693(86)90082-1
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1986GI13      Phys.Rev. C34, 1895 (1986)

R.Gilman, H.T.Fortune, M.B.Johnson, E.R.Siciliano, H.Toki, A.Wirzba, B.A.Brown

Nuclear-Structure Aspects of Nonanalog Pion Double Charge Exchange

NUCLEAR REACTIONS ¹²C, ¹⁶O, ²⁴Mg, ²⁸Si, ³²S, ^40,44Ca, ⁵⁶Fe(π⁺, π^-), E=100-300 MeV; calculated σ(θ) vs E. Nonanalog double charge exchange.

doi: 10.1103/PhysRevC.34.1895
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1986JO04      Phys.Lett. 168B, 26 (1986)

M.B.Johnson, L.S.Kisslinger

Six-Quark Clusters and Pion Double Charge Exchange in the Δ₃₃ Energy Region

NUCLEAR REACTIONS ¹⁸O(π⁺, π^-), E ≈ 20-320 MeV; calculated double IAS excitation σ(θ) vs E; deduced short-range quark effects at isobar resonance. Six-quark clusters, pion double charge exchange.

doi: 10.1016/0370-2693(86)91453-X
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1986SI11      Phys.Rev. C34, 267 (1986)

E.R.Siciliano, M.D.Cooper, M.B.Johnson, M.J.Leitch

Effects of Nuclear Correlations on Low-Energy Pion Charge-Exchange Scattering

NUCLEAR REACTIONS ¹⁴C, ⁴⁸Ca(π⁺, π⁺), E=50 MeV; calculated radial distortion functions. ¹⁴C, ⁴⁸Ca(π⁺, π⁰), ¹H(π^-, π⁰), E=50 MeV; calculated σ(θ). Isospin invariant optical potential.

doi: 10.1103/PhysRevC.34.267
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1985CH15      Phys.Rev. C31, 2140 (1985)

H.-C.Chiang, M.B.Johnson

Pion Scattering on Aligned ¹⁶⁵Ho

NUCLEAR REACTIONS ¹⁶⁵Ho(π⁺, π⁰), E=180, 200 MeV; ¹⁶⁵Ho(π⁺, π^-), E=180 MeV, calculated σ(θ), orientation asymmetry variable vs θ. ¹⁶⁵Ho(π⁺, π^-), (π⁺, π⁰), (π⁺, π⁺), E=100-240 MeV; calculated orientation asymmetry variable vs θ; deduced neutron, proton deformation role. Oriented, deformed target, approximate Klein-Gordon equations.

doi: 10.1103/PhysRevC.31.2140
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1985CH23      Phys.Rev. C32, 531 (1985)

H.-C.Chiang, M.B.Johnson

Isospin Dependence of Pauli Corrections to the Pion-Nucleus Optical Potential

NUCLEAR REACTIONS ¹⁸O(π, π), E=50-300 MeV; calculated optical potential Pauli correction isospin dependence.

doi: 10.1103/PhysRevC.32.531
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1985ER03      Phys.Rev. C32, 940 (1985)

D.J.Ernst, M.B.Johnson

Dispersive Effects in Pion-Nucleus Scattering

NUCLEAR REACTIONS ⁴⁰Ca(π, π), E=165 MeV; calculated potentials. ¹⁶O(π⁺, π⁺), E=114, 163, 240 MeV; calculated σ(θ). ¹⁶O(π, π), (π, π'), E ≈ 40-280 MeV; calculated elastic, inelastic, total σ(E). Impulse approximation, dispersive medium effects.

doi: 10.1103/PhysRevC.32.940
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1985GE03      Phys.Rev. C32, 983 (1985)

J.-F.Germond, M.B.Johnson, J.A.Johnstone

Diffraction Theory Analysis of Pion Elastic Scattering from the Calcium Isotopes

NUCLEAR REACTIONS ^40,42,44,48Ca(π⁺, π⁺), (π^-, π^-), E=180 MeV; analyzed σ(θ); deduced pion-isobar resonance dynamics. Coulomb corrected impact parameters. ^42,44,48Ca deduced proton density relative to ⁴⁰Ca. Diffraction theory.

doi: 10.1103/PhysRevC.32.983
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1985GI06      Phys.Rev. C32, 349 (1985)

R.Gilman, H.T.Fortune, M.B.Johnson, E.R.Siciliano, H.Toki, A.Wirzba

Nonanalog Pion Double Charge Exchange through the Δ₃₃-Nucleon Interaction

NUCLEAR REACTIONS ¹⁶O(π⁺, π^-), E=80-320 MeV; calculated σ(θ) vs θ; deduced reaction mechanism. Pion double charge exchange intermediate processes.

doi: 10.1103/PhysRevC.32.349
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1984AU02      Phys.Rev. C29, 526 (1984)

N.Auerbach, M.B.Johnson, A.Klein, E.R.Siciliano

Nuclear Structure Effects in Pion Single Charge Exchange

NUCLEAR REACTIONS ⁹⁰Zr, ¹²⁰Sn, ²⁰⁸Pb(π^-, π⁰), (π⁺, π⁰), E=100-300 MeV; calculated IAR, isovector monopole resonance transition densities; deduced structure effects role. DWIA model.

doi: 10.1103/PhysRevC.29.526
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1984CH31      Phys.Rev.Lett. 53, 1996 (1984)

H.-C.Chiang, M.B.Johnson

Pion Charge Exchange from Oriented, Deformed Nuclei

NUCLEAR REACTIONS ¹⁶⁵Ho(π⁺, π⁰), (π⁺, π^-), E=180 MeV; calculated orientation asymmetry for θ=0°; deduced excess neutron distribution deformation dependence. Deformed, oriented targets.

doi: 10.1103/PhysRevLett.53.1996
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1984GR27      Phys.Rev. C30, 2003 (1984)

S.J.Greene, C.J.Harvey, P.A.Seidl, R.Gilman, E.R.Siciliano, M.B.Johnson

Unified Analysis of Pion Single- and Double-Charge-Exchange Scattering in the Resonance Region

NUCLEAR REACTIONS ¹⁶O, ²⁸Si, ⁴⁰Ca, ^14,12C(π⁺, π⁺), (π^-, π^-), E=164 MeV; ¹⁴C, ¹⁸O, ²⁴Mg(π⁺, π⁰), E=164 MeV; ¹³C, ¹⁵N(π⁺, π^-), E=165 MeV; calculated σ(θ). ⁷Li, ^13,14C, ¹⁵N, ¹⁸O, ⁶⁰Ni, ⁹⁰Zr, ¹²⁰Sn, ¹⁴⁰Ce, ²⁰⁸Pb(π⁺, π^-), E=165 MeV; ¹⁴C, ¹⁸O, ²⁶Mg, ^42,48Ca, ⁵⁶Fe, ⁹⁰Zr(π⁺, π⁰), E=164 MeV; calculated σ(θ, A); deduced second-order optical model parameters. Phenomenological analysis.

doi: 10.1103/PhysRevC.30.2003
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1984JO01      Phys.Rev.Lett. 52, 593 (1984)

M.B.Johnson, E.R.Siciliano, H.Toki, A.Wirzba

Δ₃₃ Dynamics in Pion Double Charge Exchange

NUCLEAR REACTIONS ¹⁸O(π⁺, π^-), E=100-300 MeV; calculated σ(θ=0°) vs E. Direct meson-isobar interactions, Klein-Gordon equation.

doi: 10.1103/PhysRevLett.52.593
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1983JE01      Phys.Rev. C27, 697 (1983)

R.H.Jeppesen, M.J.Jakobson, M.D.Cooper, D.C.Hagerman, M.B.Johnson, R.P.Redwine, G.R.Burleson, K.F.Johnson, R.E.Marrs, H.O.Meyer, I.Halpern, L.D.Knutson

Pion-Nucleus Forward Scattering Amplitudes from Total Cross Section Measurements

NUCLEAR REACTIONS ²⁷Al, ⁴⁰Ca, ^63,65Cu, Sn, ¹⁶⁵Ho, Pb(π⁺, π⁺), (π⁺, X), (π^-, π^-), (π^-, X), E=114-215 MeV; measured total σ, attenuation σ; deduced Coulomb distorted forward scattering amplitude real, imaginary parts. Strong absorption model.

doi: 10.1103/PhysRevC.27.697
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1983JO06      Phys.Rev. C27, 1647 (1983)

M.B.Johnson, E.R.Siciliano

Pion Single and Double Charge Exchange in the Resonance Region: Dynamical corrections

NUCLEAR REACTIONS ¹⁸O(π⁺, π^-), E=164 MeV; ¹⁸O, ²⁶Mg, ^42,48Ca, ⁵⁸Ni, ⁹⁰Zr, ¹²⁰Sn, ²⁰⁸Pb(π⁺, π⁰), (π⁺, π^-), E=180 MeV; calculated σ(θ); deduced second-order process role. Optical model, dynamical corrections.

doi: 10.1103/PhysRevC.27.1647
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1981BO17      Phys.Rev.Lett. 46, 1614 (1981)

J.D.Bowman, M.B.Johnson, J.W.Negele

Pion Charge-Exchange Reaction as a Probe of Isovector Monopole Resonances

NUCLEAR REACTIONS ⁴⁰Ca, ⁵⁸Ni, ⁹⁰Zr, ¹²⁰Sn, ²⁰⁸Pb(π^-, π⁰), E=resonance; calculated σ(θ=0°). Distorted wave, eikonal approximation, Hartree-Fock transition density.

NUCLEAR STRUCTURE ⁴⁰Ca, ⁵⁸Ni, ⁹⁰Zr, ¹²⁰Sn, ²⁰⁸Pb; calculated transition density, giant isovector monopole resonance. Constrained, static Hartree-Fock method.

doi: 10.1103/PhysRevLett.46.1614
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1980BA27      Phys.Rev.Lett. 45, 982 (1980)

H.W.Baer, J.D.Bowman, M.D.Cooper, F.H.Cverna, C.M.Hoffman, M.B.Johnson, N.S.P.King, J.Piffaretti, E.R.Siciliano, J.Alster, A.Doron, S.Gilad, M.Moinester, P.R.Bevington, E.Winkelmann

Observation of Isobaric Analog States in Pion Single-Charge-Exchange Reactions

NUCLEAR REACTIONS ⁷Li, ¹³C, ²⁷Al, ⁵⁸Ni, ⁹⁰Zr, ¹²⁰Sn, ²⁰⁸Pb(π⁺, π⁰), E=98 MeV; measured σ(θ). ⁷Be, ¹³N, ²⁷Si, ⁵⁸Cu, ⁹⁰Nb, ¹²⁰Sb, ²⁰⁸Bi deduced IAS. Optical model.

doi: 10.1103/PhysRevLett.45.982
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1980ER07      Phys.Rev. C22, 651 (1980)

D.J.Ernst, M.B.Johnson

Simple Model of Pion-Nucleon Elastic Scattering

NUCLEAR REACTIONS ¹H(π, π), E=1.2 GeV; calculated s-, p-, d-, f-, wave phase shifts. Extended Chew-Low models, separable potential.

doi: 10.1103/PhysRevC.22.651
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1980GE07      Phys.Rev. C22, 1622 (1980)

J.-F.Germond, M.B.Johnson

Analytical Approximation to Pion-Nucleus Scattering Near (3, 3) Resonance

NUCLEAR REACTIONS ⁴⁰Ca(π, π), E=130, 180, 241 MeV; calculated σ(θ); ⁴⁰Ca(π^-, π^-), (π⁺, π⁺), E=130, 180, 241 MeV; calculated σ(θ(π^-))/ σ(θ(π⁺)). Analytic approximation.

doi: 10.1103/PhysRevC.22.1622
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1980GI01      Phys.Rev. C21, 1056 (1980)

J.N.Ginocchio, M.B.Johnson

Effect of the Pion and Δ Optical Potential on Deep Inelastic Pion-Nuclear Reactions

NUCLEAR REACTIONS ¹H(p, π⁺n), (p, π⁰p), (p, π⁺), E=300-1200 MeV; calculated production σ. ¹²C(π^-, X), (π⁺, X), E=50-250 MeV; calculated total reaction σ, absorption σ. ⁶²Ni(π⁺, X), E=220 MeV; calculated spallation σ. Semiclassical transport model, pion, isobar optical potentials.

doi: 10.1103/PhysRevC.21.1056
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1980JO06      Phys.Rev. C22, 192 (1980)

M.B.Johnson

Analytical Theory of Pion Single and Double Charge Exchange in Resonance Region. I. Geometrical Limit

NUCLEAR REACTIONS ⁷Li, ¹³C, ⁵⁸Ni, ⁹⁰Zr, ¹²⁰Sn, ²⁰⁸Pb(π^-, π⁰), ¹⁸O, ⁴⁸Ca, ⁵⁸Ni, ⁹⁰Zr, ¹²⁰Sn, ²⁰⁸Pb, ²³⁸U(π⁺, π^-), E=180 MeV; ¹⁸O(π⁺, π^-), E=164 MeV; calculated σ(θ). Geometrical model.

doi: 10.1103/PhysRevC.22.192
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1979CO13      Phys.Rev. C20, 696 (1979)

M.D.Cooper, R.H.Jeppesen, M.B.Johnson

Coulomb Effects in the Klein-Gordon Equation for Pions

NUCLEAR REACTIONS ²⁰⁸Pb(π⁺, π⁺), E=100 MeV; calculated σ(θ). Klein-Gordon equation, Coulomb scattering, spinless particles, point source.

doi: 10.1103/PhysRevC.20.696
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1979JO06      Phys.Rev. C20, 1064 (1979)

M.B.Johnson, D.J.Ernst

Off-Shell Sensitivity in Relativistic Schrodinger and Klein-Gordon Optical Models of Pion-Nucleus Interactions

NUCLEAR REACTIONS ¹²C(π⁰, π⁰), E=40, 160, 180 MeV; calculated σ(θ), total, reaction σ; deduced sensitivity to (3-3) resonance energy. Relativistic Schrodinger, Klein-Gordon equations.

doi: 10.1103/PhysRevC.20.1064
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1977CO27      Nucl.Phys. A292, 350 (1977)

M.D.Cooper, M.B.Johnson, G.B.West

Coulomb-Nuclear Interference with Pions

NUCLEAR REACTIONS ¹⁶O(π⁺, π⁺), (π^-, π^-), E=150-220 MeV; ⁴⁰Ca(π^-, π^-), E=20-200 MeV; calculated Coulomb-nuclear interference.

doi: 10.1016/0375-9474(77)90624-8
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1976CO13      Nucl.Phys. A260, 352 (1976)

M.D.Cooper, M.B.Johnson

Integrated Pion-Nucleus Cross Sections

NUCLEAR REACTIONS ¹²C, ¹⁶O, ⁴⁰Ca, ⁹⁰Zr(π, X), E=172 MeV; calculated σ. ²⁰⁸Pb(π⁺, X), E=50 MeV; calculated σ.

doi: 10.1016/0375-9474(76)90050-6
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1975MO01      Nucl.Phys. A239, 45 (1975)

A.Molinari, M.B.Johnson, H.A.Bethe, W.M.Alberico

Effective Two-Body Interaction in Simple Nuclear Spectra

NUCLEAR STRUCTURE ³⁴Cl, ³⁴S, ^90,92Nb, ^48,50Sc, ^208,210Bi, ²¹⁰Pb; calculated interaction matrix elements.

doi: 10.1016/0375-9474(75)91132-X
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