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NSR database version of April 27, 2024.

Search: Author = G.Koch

Found 10 matches.

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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
Citations: PlumX Metrics

1991BE21      Nucl.Phys. A527, 343c (1991)

R.Beck, B.Schoch, F.Kalleicher, G.Koch, V.Metag, H.Stroher, R.O.Owens

Experimental Evidence for PCAC Violation from Neutral Pion-Photoproduction from the Proton

NUCLEAR REACTIONS 1H(γ, π0), E=132-157 MeV; measured σ(θ), σ.

doi: 10.1016/0375-9474(91)90123-N
Citations: PlumX Metrics

1991LO05      Phys.Rev. C44, 956 (1991)

J.Lowe, B.Bassalleck, H.Burkhardt, W.J.Fickinger, J.R.Hall, M.D.Hasinoff, D.Horvath, G.Koch, K.D.Larson, J.P.Miller, A.J.Noble, B.L.Roberts, D.K.Robinson, M.Sakitt, M.E.Sevior, N.W.Tanner, C.E.Waltham, T.M.Warner, D.M.Wolfe

π-p → π0π0n Near Threshold and Chiral Symmetry Breaking

NUCLEAR REACTIONS 1H(π-, 2π0), E at 7-140 MeV/c; measured missing mass spectra, yield vs θn, σ(π1), σ(π2); deduced chiral-symmetry parameter, π-π scattering lengths.

doi: 10.1103/PhysRevC.44.956
Citations: PlumX Metrics

1991SE07      Phys.Rev.Lett. 66, 2569 (1991)

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

Measurement of the Near-Threshold H(π+, π+π+)n Cross Section and Chiral Symmetry

NUCLEAR REACTIONS 1H(π+, 2π+), E=180-200 MeV; measured σ(E); deduced ππ scattering length. Chiral pertubation theory, quark loop anomalies dominance.

doi: 10.1103/PhysRevLett.66.2569
Citations: PlumX Metrics

1990BE46      Phys.Rev.Lett. 65, 1841 (1990)

R.Beck, F.Kalleicher, B.Schoch, J.Vogt, G.Koch, H.Stroher, V.Metag, J.C.McGeorge, J.D.Kellie, S.J.Hall

Measurement of the p(γ, π0) Cross Section at Threshold

NUCLEAR REACTIONS 1H(γ, π0), E=140-155 MeV; measured σ(θ), absolute σ(E); deduced complex multipole amplitude.

doi: 10.1103/PhysRevLett.65.1841
Citations: PlumX Metrics

1989BR27      Phys.Rev. C40, 2893 (1989)

G.Breitbach, G.Koch, S.Koch, W.Kuhn, A.Ruckelshausen, V.Metag, R.Novotny, S.Riess, D.Habs, D.Schwalm, E.Grosse, H.Stroher

Dominance of Nucleon-Nucleon Bremsstrahlung in Mass-Asymmetric Heavy-Ion Collisions at 15 MeV/Nucleon

NUCLEAR REACTIONS W(16O, Xγ), E=15 MeV/nucleon; measured σ(θγ, Eγ), γ-multiplicity; deduced nucleon-nucleon bremsstrahlung dominance.

doi: 10.1103/PhysRevC.40.2893
Citations: PlumX Metrics

1989KO05      Phys.Lett. 218B, 143 (1989)

G.Koch, H.Stroher, G.Breitbach, V.Metag, S.Tschesche, R.Beck, U.Dittmayer, R.Gothe, F.Kalleicher, M.Schmitz, B.Schoch, J.Vogt, S.J.Hall, J.D.Kellie, J.C.McGeorge, D.Branford

Cross Sections and Angular Distributions for 12C(γ, π0)

NUCLEAR REACTIONS 12C(γ, π0), E=158-168 MeV; measured pion production σ(E), σ(θ) vs E; deduced final state interactions role.

doi: 10.1016/0370-2693(89)91409-3
Citations: PlumX Metrics

1989KO20      Phys.Rev.Lett. 63, 498 (1989)

G.Koch, H.Stroher, G.Breitbach, V.Metag, S.Tschesche, R.Beck, F.Kalleicher, B.Schoch, J.Vogt, J.C.McGeorge, J.D.Kellie, S.J.Hall

Differential Cross Sections for Coherent and Incoherent Neutral-Pion Photoproduction from Calcium

NUCLEAR REACTIONS 40Ca(γ, π0), E=157-169 MeV; measured σ(θ), coherent, incoherent pion production; deduced σ(E). DWIA analysis.

doi: 10.1103/PhysRevLett.63.498
Citations: PlumX Metrics

1988ST12      Nucl.Instrum.Methods Phys.Res. A269, 568 (1988)

H.Stroher, G.Koch, V.Metag, R.Beck, B.Schoch, J.Vogt

A Spectrometer for Near Threshold Photoproduction of Neutral Pions

NUCLEAR REACTIONS 1H, 12C, 40Ca(γ, π0), E=160, 170 MeV; measured pion spectra, production features. Near threshold pion production spectrometer.

doi: 10.1016/0168-9002(88)90135-0
Citations: PlumX Metrics

1986FI04      Phys.Lett. 171B, 33 (1986)

R.D.Fischer, A.Ruckelshausen, G.Koch, W.Kuhn, V.Metag, R.Muhlhans, R.Novotny, H.Stroher, H.Groger, D.Habs, H.W.Heyng, R.Repnow, D.Schwalm, W.Reisdorf, R.S.Simon

Partial Wave Cross Sections for 34S + 130Te Fusion

NUCLEAR REACTIONS 130Te(34S, xn), E=155 MeV; measured γ(θ), γ-multiplicity, residual relative yield for x=3, 4, 5, 6; deduced fusion, evaporation residue σ. 164Er deduced spin distribution. Crystal ball technique.

doi: 10.1016/0370-2693(86)90992-5
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