Electromagnetic multipoles - theory issues
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⚛️ nucl-th
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amplitudesanalysiscloudcomparedconstituentcontributiondatadiscussed
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Some predictions of the Hypercentral Constituent Quark Model for the helicity amplitudes are discussed and compared with data and with the recent analysis of the Mainz group; the role of the pion cloud contribution in explaining the major part of the missing strength at low $Q^2$ is emphasized.
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