E2 and C2 amplitudes for electroproduction of $Δ$
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We compute the amplitudes for the electromagnetic $γ_v N \to Δ$ transition in the framework of soliton models with quarks and mesons. The ratios E2/M1 and C2/M1 as functions of the photon four-momentum squared are dominated by the contribution of the pion cloud and are in reasonable agreement with the available experimental data.
4 pages LaTeX, uses psfig.sty, one figure added as uuencoded gzipped postscript file, two figures included in source; (Contribution to the Baryons '95 Conference, Santa Fe)
4 pages LaTeX, uses psfig.sty, one figure added as uuencoded gzipped postscript file, two figures included in source; (Contribution to the Baryons '95 Conference, Santa Fe)