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Search: Author = J.Koch

Found 46 matches.

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2002KO20      Phys.Rev. C65, 045202 (2002)

J.H.Koch, V.Pascalutsa, S.Scherer

Hadron Structure in the Description of Electromagnetic Reactions

doi: 10.1103/PhysRevC.65.045202
Citations: PlumX Metrics

1997BO18      Nucl.Phys. A619, 295 (1997)

K.G.Boreskov, L.A.Kondratyuk, M.I.Krivoruchenko, J.H.Koch

Resonance Production on Nuclei at High Energies: Nuclear-medium effects and space-time picture

doi: 10.1016/S0375-9474(97)00158-9
Citations: PlumX Metrics

1996BO29      Yad.Fiz. 59, No 10, 1908 (1996); Phys.Atomic Nuclei 59, 1844 (1996)

K.G.Boreskov, J.H.Koch, L.A.Kondratyuk, M.I.Krivoruchenko

Medium Effects in the Production of Hadronic Resonances on Nuclei

NUCLEAR STRUCTURE A=50; A=200; calculated e+e--pairs mass spectra following hard photon induced ρ-meson production, decay in these targets. Two-component formula.

1996PO02      Phys.Rev. C53, 2304 (1996)

S.Pollock, H.W.L.Naus, J.H.Koch

Electron-Nucleon Cross Section in (e, e'p) Reactions

doi: 10.1103/PhysRevC.53.2304
Citations: PlumX Metrics

1996SC15      Phys.Rev. C54, 904 (1996)

S.Scherer, A.Yu.Korchin, J.H.Koch

Virtual Compton Scattering Off the Nucleon at Low Energies

doi: 10.1103/PhysRevC.54.904
Citations: PlumX Metrics

1993NI07      Phys.Rev.Lett. 70, 3713 (1993)

J.Nilsen, J.A.Koch, J.H.Scofield, B.J.MacGowan, J.C.Moreno, L.B.Da Silva

Observation of Hyperfine Splitting on an X-Ray Laser Transition

NUCLEAR MOMENTS 93Nb, Zr; measured X-ray laser transition hfs; deduced no hfs splitting for Zr. High resolution grazing incidence grating spectrometer, Ne-like Nb, Zr.

doi: 10.1103/PhysRevLett.70.3713
Citations: PlumX Metrics

1992BO27      Nucl.Phys. A547, 488 (1992)

J.W.Bos, S.Scherer, J.H.Koch

Hadron Structure and Gauge Invariance in Photo- and Electroproduction of Pions

NUCLEAR REACTIONS 1H(γ, π0), E not given; calculated photoproduction σ(θ).

doi: 10.1016/0375-9474(92)90035-I
Citations: PlumX Metrics

1990KO19      Nucl.Phys. A512, 699 (1990)

J.H.Koch, T.Takaki

Pion Photoproduction and Radiative Capture on 13C

NUCLEAR REACTIONS 13C(γ, π-), E=193, 223 MeV; 13C(π+, γ), E=115 MeV; calculated σ(θ).

doi: 10.1016/0375-9474(90)90231-A
Citations: PlumX Metrics

1990KO37      Nucl.Phys. A519, 773 (1990)

J.Konijn, C.T.A.M.de Laat, A.Taal, J.H.Koch

An Improved Parametrization of the Optical Potential for Pionic Atoms

NUCLEAR STRUCTURE 181Ta, Re, Pt, 197Au, 208Pb, 209Bi, 237Np, 24Mg, 27Al, 28Si, Zn, Ge, 93Nb, Ru, Cu; analyzed pionic atom data. Phenomenological optical potential. Other nuclei in the A=10-56 also studied.

ATOMIC PHYSICS, Mesic-Atoms 181Ta, Re, Pt, 197Au, 208Pb, 209Bi, 237Np, 24Mg, 27Al, 28Si, Zn, Ge, 93Nb, Ru, Cu; analyzed pionic atom data. Phenomenological optical potential. Other nuclei in the A=10-56 also studied.

doi: 10.1016/0375-9474(90)90435-O
Citations: PlumX Metrics

1990NA09      Nucl.Phys. A509, 717 (1990)

H.W.L.Naus, S.J.Pollock, J.H.Koch, U.Oelfke

Electron Scattering from a Bound Nucleon

NUCLEAR REACTIONS 3He(e, e'X), E=6.483 GeV; calculated σ(θ(e'), E(e')). Scattering from bound nucleon.

doi: 10.1016/0375-9474(90)90250-P
Citations: PlumX Metrics

1990TA10      Nucl.Phys. A511, 573 (1990)

A.Taal, P.David, H.Hanscheid, J.H.Koch, C.T.A.M.de Laat, W.Lourens, F.Risse, Ch.F.G.Rosel, A.van der Schaaf, W.Schrieder, J.Konijn

Deeply Bound 1s and 2p States in Pionic Atoms

NUCLEAR REACTIONS 24Mg, 27Al, 28Si(π-, xnyp), E at rest; measured prompt, delayed neutron, X-ray, γ-spectra. 93Nb, Ru, Ag, Cd(π-, X), E at rest; measured X-ray spectra; deduced strong interaction shifts, widths.

ATOMIC PHYSICS, Mesic-Atoms 24Mg, 27Al, 28Si(π-, xnyp), E at rest; measured prompt, delayed neutron, X-ray, γ-spectra. 93Nb, Ru, Ag, Cd(π-, X), E at rest; measured X-ray spectra; deduced strong interaction shifts, widths.

doi: 10.1016/0375-9474(90)90111-X
Citations: PlumX Metrics

1988KO07      Phys.Lett. 205B, 215 (1988)

M.W.Konijnenberg, K.Abrahams, J.Kopecky, F.Stecher-Rasmussen, R.Wervelman, J.H.Koch

Evidence for Meson-Exchange Currents in the Radiative Thermal Neutron Capture by Deuterium Nuclei

NUCLEAR REACTIONS 2H(polarized n, γ), E=thermal; measured γ CP; deduced meson exchange current role.

doi: 10.1016/0370-2693(88)91652-8
Citations: PlumX Metrics

1987DU08      Phys.Lett. 196B, 434 (1987)

P.C.Dunn, A.Kaarsgaarn, J.H.Koch, P.K.A.De Witt Huberts, P.Stoler, P.F.Yergin, M.Seneviratne, B.Schoch

A Study of the Role of the Δ-Resonance in the Reaction 13C(γ, π-)13N(gs)

NUCLEAR REACTIONS 13C(γ, π-), E=223 MeV; measured pion production σ(θ). Enriched target.

doi: 10.1016/0370-2693(87)90796-9
Citations: PlumX Metrics

1987OC01      Phys.Rev. C35, 1063 (1987)

J.S.O'Connell, W.R.Dodge, J.W.Lightbody, Jr., X.K.Maruyama, J.-O.Adler, K.Hansen, B.Schroder, A.M.Bernstein, K.I.Blomqvist, B.H.Cottman, J.J.Comuzzi, R.A.Miskimen, B.P.Quinn, J.H.Koch, N.Ohtsuka

Electromagnetic Excitation of the Delta Resonance in Nuclei

NUCLEAR REACTIONS 1H, 4He, 9Be, 12C, 16O(e, e'X), E=537, 730 MeV; measured inclusive σ(E(e'), θ(e')); deduced quasifree peak positions, widths, average separation energies. Dispersion matched energy loss spectrometer. Model calculations.

doi: 10.1103/PhysRevC.35.1063
Citations: PlumX Metrics

1986SU18      Nucl.Phys. A460, 607 (1986)

T.Suzuki, T.Takaki, J.H.Koch

Photoproduction of Charged Pions to Discrete Nuclear States

NUCLEAR REACTIONS 12C, 14N(γ, π+), E=320 MeV; calculated σ(θ). Medium effects, isobar propogation.

doi: 10.1016/0375-9474(86)90528-2
Citations: PlumX Metrics

1985KO06      Nucl.Phys. A435, 765 (1985)

J.H.Koch, N.Ohtsuka

Inclusive Electron Scattering from Light Nuclei at Intermediate Energies

NUCLEAR REACTIONS 4He, 12C, 16O(e, e'X), E ≈ 730 MeV; calculated inclusive σ(θ(e'), E(e')), transverse σ. Isobar-hole model.

doi: 10.1016/0375-9474(85)90187-3
Citations: PlumX Metrics

1985SU15      Phys.Lett. 164B, 245 (1985)

T.Suzuki, J.H.Koch

Pion Photoproduction in the σ-(Omega) Model

NUCLEAR REACTIONS 27Al(γ, π+), (γ, π-), (γ, π0), E ≈ threshold; calculated σ; deduced medium effects.

doi: 10.1016/0370-2693(85)90318-1
Citations: PlumX Metrics

1985TA10      Phys.Lett. 156B, 296 (1985)

A.Taal, J.F.M.D'Achard van Enschut, J.B.R.Berkhout, W.Duinker, C.W.E.Van Eijk, W.H.A.Hesselink, P.J.van den Hoek, T.J.Ketel, J.H.Koch, J.Konijn, C.T.A.M.de Laat, W.Lourens, G.van Middelkoop, W.Poeser, T.Prins, A.H.Wapstra

Anomalous Strong Interaction in Pionic Mg

NUCLEAR REACTIONS Mg(π-, X), E at rest; measured pionic E X-ray, I X-ray; deduced strong interaction shifts, widths, anomalies.

ATOMIC PHYSICS, Mesic-Atoms Mg; measured pionic X-rays; deduced strong interaction shifts, widths, anomalies.

doi: 10.1016/0370-2693(85)91612-0
Citations: PlumX Metrics

1985TA17      Nucl.Phys. A443, 570 (1985)

T.Takaki, T.Suzuki, J.H.Koch

Photoproduction of Neutral Pions to Discrete Nuclear States

NUCLEAR REACTIONS 12C(γ, π0), E=235, 250 MeV; calculated σ(θ); deduced pion production mechanism. DWIA, isobar-hole excitation.

doi: 10.1016/0375-9474(85)90214-3
Citations: PlumX Metrics

1984DA02      Phys.Lett. 136B, 24 (1984)

J.F.M.d'Achard van Enschut, J.B.R.Berkhout, W.Duinker, C.W.E.van Eijk, W.H.A.Hesselink, T.Johansson, T.J.Ketel, J.H.Koch, J.Konijn, C.T.A.M.de Laat, W.Lourens, G.van Middelkoop, W.Poeser

Anomalous Strong Interaction Shifts and Widths of the 3d State in Pionic Pt and Au

ATOMIC PHYSICS, Mesic-Atoms Pt, Au; measured pionic E X-ray, I X-ray; deduced strong interaction monopole shifts, widths.

doi: 10.1016/0370-2693(84)92048-3
Citations: PlumX Metrics

1984KO33      Ann.Phys.(New York) 154, 99 (1984)

J.H.Koch, E.J.Moniz, N.Ohtsuka

Nuclear Photoabsorption and Compton Scattering at Intermediate Energy

NUCLEAR REACTIONS 12C(γ, X), E=200-400 MeV; calculated photoabsorption σ(E). 12C(γ, γ), E(cm)=325 MeV; 4He(γ, γ), E(cm)=200, 325 MeV; calculated elastic Compton scattering σ(θ). Isobar-hole approach.

doi: 10.1016/0003-4916(84)90141-6
Citations: PlumX Metrics

1984OL04      Nucl.Phys. A429, 477 (1984)

J.G.J.Olivier, M.Thies, J.H.Koch

Anomalous Widths in Pionic Atoms and the Problem of s-Wave Repulsion

ATOMIC PHYSICS, Mesic-Atoms 148Nd, 181Ta; analyzed pionic level shift, width data; deduced nuclear interior s-wave repulsion.

doi: 10.1016/0375-9474(84)90693-6
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1984ST16      Phys.Lett. 143B, 69 (1984)

P.Stoler, P.F.Yergin, A.Farah, P.C.Dunn, P.K.A.DeWitt-Huberts, A.Kaarsgaarn, J.Koch, B.Schoch

A Measurement of the Photopion Reaction 13C(γ, π-)13N(g.s.) at a Pion Kinetic Energy of 48 MeV

NUCLEAR REACTIONS 13C(γ, π-), E ≈ 193 MeV; measured σ(θ); deduced M1 form factor dependence.

doi: 10.1016/0370-2693(84)90806-2
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1983KO02      Phys.Rev. C27, 751 (1983)

J.H.Koch, E.J.Moniz

Coherent π0 Photoproduction at Intermediate Energy

NUCLEAR REACTIONS 4He, 12C(γ, π0), E=200-400 MeV; calculated production σ(E), σ(θ). Isobar-hole formalism.

doi: 10.1103/PhysRevC.27.751
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1980KO11      Nucl.Phys. A340, 221 (1980)

J.Koch, F.Scheck

Quadrupole Interactions in Pionic and Kaonic Atoms

NUCLEAR MOMENTS 165Ho, 175,176Lu, 181Ta, Re; calculated pionic, kaonic hfs; deduced strong interaction shifts, widths. Optical potential, nonspherical density distributions.

doi: 10.1016/0375-9474(80)90272-9
Citations: PlumX Metrics

1979HI04      Ann.Phys.(New York) 120, 205 (1979)

M.Hirata, J.H.Koch, F.Lenz, E.J.Moniz

Isobar-Hole Doorway States and π-16O Scattering

NUCLEAR REACTIONS 16O(π+, π+), (π-, π-), E=50-340 MeV; calculated σ(θ). Isobar-hole doorway state model.

doi: 10.1016/0003-4916(79)90287-2
Citations: PlumX Metrics

1979KO17      Phys.Rev. C20, 235 (1979)

J.H.Koch, E.J.Moniz

Coherent π0 Photoproduction in the Isobar-Hole Formalism

NUCLEAR REACTIONS 16O(γ, π0), E not given; calculated coherent production σ. Isobar-hole formalism for pion-nucleus interactions.

doi: 10.1103/PhysRevC.20.235
Citations: PlumX Metrics

1979KO22      Nucl.Phys. A326, 401 (1979)

J.Konijn, J.K.Panman, J.H.Koch, W.van Doesburg, G.T.Ewan, T.Johansson, G.Tibell, K.Fransson, L.Tauscher

Pionic 4f → 3d Transition in 181Ta, Natural Re, and 209Bi and the Strong Interaction Level Shift and Width of the Pionic 3d State

ATOMIC PHYSICS, Mesic-Atoms 181Ta, Re, 209Bi; measured pionic E(X-ray), I(X-ray); deduced strong interaction widths of 5g, 4f levels.

doi: 10.1016/0375-9474(79)90400-7
Citations: PlumX Metrics

1977BO03      Phys.Lett. 66B, 236 (1977)

E.C.Booth, B.Chasan, A.M.Bernstein, P.Bosted, J.H.Koch

Threshold Photoproduction of π+ Mesons in Deuterium

NUCLEAR REACTIONS 2H(γ, π+), E=threshold-9 MeV; measured σ(E).

doi: 10.1016/0370-2693(77)90869-3
Citations: PlumX Metrics

1977HI10      Phys.Lett. 70B, 281 (1977)

M.Hirata, J.H.Koch, F.Lenz, E.J.Moniz

Extended Schematic Model for Pion-Nucleus Scattering

NUCLEAR REACTIONS 16O(π-, π-); calculated scattering parameters.

doi: 10.1016/0370-2693(77)90658-X
Citations: PlumX Metrics

1977KO26      Phys.Rev. C16, 1968 (1977)

J.H.Koch, R.M.Woloshyn

Near Threshold Photoproduction of Neutral Pions from the Deuteron

NUCLEAR REACTIONS 1,2H(γ, π0), E=threshold-threshold+6 MeV; calculated σ(E).

doi: 10.1103/PhysRevC.16.1968
Citations: PlumX Metrics

1976DU05      Nucl.Phys. A271, 279 (1976)

J.Dubach, J.H.Koch, T.W.Donnelly

Exchange Currents in Electron Scattering from Light Nuclei

NUCLEAR REACTIONS 3He, 6,7Li, 9Be, 10B(e, e'); calculated meson exchange currents.

doi: 10.1016/0375-9474(76)90246-3
Citations: PlumX Metrics

1976KO04      Phys.Lett. 60B, 221 (1976)

J.H.Koch, R.M.Woloshyn

Threshold Photoproduction of Neutral Pions from Few-Body Targets

NUCLEAR REACTIONS 3H, 3He(γ, π0), E=near threshold; calculated σ.

doi: 10.1016/0370-2693(76)90285-9
Citations: PlumX Metrics

1974KO27      Phys.Rev. C10, 2618 (1974)

J.H.Koch, T.W.Donnelly

Pion Photoproduction on 6Li Near Threshold

NUCLEAR REACTIONS 6Li(γ, π), E approx threshold; calculated σ(E).

doi: 10.1103/PhysRevC.10.2618
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1972KI07      Phys.Rev. C6, 469 (1972)

L.S.Kisslinger, R.L.Burman, J.H.Koch, M.M.Sternheim

Elastic Pion-Nucleus Scattering for Studies of the Nuclear Surface

NUCLEAR REACTIONS 40Ca, 208Pb(π-, π-), (π+, π+), E=57-150 MeV; calculated σ(θ).

doi: 10.1103/PhysRevC.6.469
Citations: PlumX Metrics

1972KO08      Phys.Rev.Lett. 28, 1061 (1972)

J.H.Koch, M.M.Sternheim

K--Nucleus Interaction and its Interpretation

ATOMIC PHYSICS, Mesic-Atoms 10B, C, P, S, Cl, 11B, Zn; analyzed μ-mesic X-ray transitions. Optical model.

doi: 10.1103/PhysRevLett.28.1061
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1972KO27      Phys.Rev. C6, 1118 (1972)

J.H.Koch, M.M.Sternheim

Models for π+-16O Scattering at 270 MeV

NUCLEAR REACTIONS 16O(π+, π+), E=270 MeV; analyzed σ(θ). Kisslinger, local optical model.

doi: 10.1103/PhysRevC.6.1118
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1967FR03      Nucl.Phys. A95, 625(1967)

K.Fricke, J.Koch, U.Schotzig, F.Munnich

Angular Correlation Measurement of the 722 Kev-556 keV Gamma-Gamma Cascade in 114Cd

RADIOACTIVITY 114mIn [from 113In(n, γ)]; measured γγ(θ). 114Cd level deduced J. Natural target.

doi: 10.1016/0375-9474(67)90855-X
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1967KO13      Nucl.Phys. A103, 300 (1967)

J.Koch, F.Munnich, U.Schotzig

Messung des E2/M1 Mischungsverhaltnisses von 2+-2+ Ubergangen in 82Kr, 106Pd, 122Te, 192Pt und 198Hg

RADIOACTIVITY 82Br [from 81Br(n, γ)], 106Ru [from u(n, F)], 122Sb [from 121Sb(n, γ)], 192Ir [from 191Ir(n, γ)], 198Au [from 197Au(n, γ)]; measured γγ(θ). 82Kr, 106Pd, 122Te, 192Pt, 198Hg, deduced delta(E2/M1). Natural, enriched targets.

doi: 10.1016/0375-9474(67)90255-2
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1965KO11      Z.Naturforsch. 20a, 845 (1965)

J.Koch, F.Munnich, W.Schaare, K.Fischer, K.Fricke

Determination of the Spin of the 2426 keV Level in Kr82

NUCLEAR STRUCTURE 82Br; measured not abstracted; deduced nuclear properties.

1964MU09      Z.Physik 181, 301 (1964)

F.Munnich, K.Fricke, J.Koch

Untersuchung des Zerfalls von Ag110m durch γ-γ-Richtungskorrelationsmessungen

NUCLEAR STRUCTURE 110Ag; measured not abstracted; deduced nuclear properties.

1952BO57      Arkiv Fysik 4, 455 (1952)

A.Bohr, J.Koch, E.Rasmussen

Hyperfine Structure and Nuclear Moments of Xe129 and Xe131

1950KO09      Phys.Rev. 77, 722 (1950)

J.Koch, E.Rasmussen

Nuclear Spin and Isotope Shift of Xenon Investigated with Separated Isotopes

doi: 10.1103/PhysRev.77.722
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1949KO13      Phys.Rev. 76, 279 (1949)

J.Koch, O.Kofoed-Hansen, P.Kristensen, W.Drost-Hansen

Measurements on Radioactive Krypton Isotopes from Fission after Mass-Spectrographic Separation

doi: 10.1103/PhysRev.76.279
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23572.

1949KO21      Phys.Rev. 76, 1417 (1949)

J.Koch, E.Rasmussen

Hyperfine Structure and Nuclear Spin of Kr-83 and Ne-21 Investigated

doi: 10.1103/PhysRev.76.1417
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1948BR19      Nature(London) 162, 695 (1948)

K.J.Brostrom, T.Huus, J.Koch

Gamma-Rays from Proton Bombardment of Separated Argon Isotopes

NUCLEAR REACTIONS 40Ar(p, X), E=0.5-1.8 MeV; measured Eγ, Iγ. 41Ar deduced resonance features.

doi: 10.1038/162695b0
Citations: PlumX Metrics

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Note: The following list of authors and aliases matches the search parameter J.Koch: , J.A.KOCH, J.H.KOCH