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We calculate photoexcitation amplitudes for all nucleon and Δ resonances up to s = 1.6 GeV. We use a chiral quark model including two-body exchange currents. The two-body currents give important contributions. For the Δ (1232) and the D 13 (1520) we observe that the individual exchange current contributions considerably cancel each other while for the P 11 (1440), the...
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