We have measured the absolute differential cross section for photoproduction of neutral rho mesons from complex nuclei at a photon energy of 8.8 BeV. Using a two-parameter optical model, we have deduced a value for the total rho-nucleon cross section of 30_-4⁺⁶ mb. Application of the vector-dominance model results in a value for the rho-photon coupling of γ_ρ^_²4π=1.1±0.2.
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Bulos et al. (1969) studied this question.
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