Browsing by Author "van der Steenhoven, G."
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Item Exclusive 16O(γ,π-p) reaction in the Δ resonance region(1992-08) Pham, L.D.; Høibråten, S.; Redwine, R.P.; Tieger, D.R.; van der Steenhoven, G.; Wilson, K.E.; Yuly, M.E.; Federspiel, F.J.; Eisenstein, R.A.; Nathan, A.M.; Wood, S.A.; Beise, E.J.We report the first exclusive (γ,π-p) measurements on a complex nucleus. The 16O(γ,π-p) reaction was measured at pion laboratory angles of 64° and 120°. Coincident protons were detected over the quasifree angular correlation range using a vertical array of seven plastic scintillator detectors spanning ±33° about the scattering plane. The cross sections are compared to factorized distorted-wave impulse approximation calculations; these provide a good description of the backward angle data, but are in serious disagreement with the forward angle data.