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- W1976363944 abstract "Elastic and inelastic η-photoproduction from complex nuclei is studied in a distorted-wave impulse approximation (DWIA) framework. The elementary operator is obtained by using a dynamical model which employs the reactions πN→πN, πN→ππN and π−p→ηn to fix the hadronic vertex as well as the isobar propagators and the process γN→πN to constrain the electromagnetic vertex. The nuclear structure input for the inelastic transitions has been extracted from electron-scattering form factors. The η final-state interaction has been included via a simple optical potential using the ηN t-matrix as an input. We find that coherent η-production is dominated by the D13(1520) isobar while spin-flip transitions to excited nuclear states are sensitive to the S11(1535) resonance. Predictions are given for coherent production on 4He, 12C and 40Ca, as well as incoherent production on 6Li, 10B and 12C." @default.
- W1976363944 created "2016-06-24" @default.
- W1976363944 creator A5043042962 @default.
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- W1976363944 date "1991-08-01" @default.
- W1976363944 modified "2023-10-16" @default.
- W1976363944 title "Coherent and incoherent η-photoproduction from nuclei" @default.
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- W1976363944 doi "https://doi.org/10.1016/0375-9474(91)90772-x" @default.
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