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We compare results for the D13(1520) photon-decay amplitudes determined inanalyses of eta- and pion-photoproduction data. The ratio of helicityamplitudes (A_3/2 / A_1/2), determined from eta-photoproduction data, is quitedifferent from that determined in previous analyses of pion-photoproductiondata. We consider how strongly the existing pion-photoproduction data constrainboth this ratio and the individual photon-decay amplitudes.Comment: 7 pages, 2 figure

physical review. c. nuclear physics/physical review. c, nuclear physics

Extraction of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>D</mml:mi></mml:mrow><mml:mrow><mml:mn>13</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mn /><mml:mo>(</mml:mo><mml:mn>1520</mml:mn><mml:mo>)</mml:mo><mml:mn /></mml:math>photon-decay couplings from pion- and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>η</mml:mi></mml:math>-photoproduction data

Extraction of theD13(1520)photon-decay couplings from pion- andη-photoproduction data