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Medium Effects in Coherent Pion Photo- and Electroproduction on 4He and 12C | | D. Drechsel
; L. Tiator
; S.S. Kamalov
; Shin Nan Yang
; | | Date: |
8 Jun 1999 | | Journal: | Nucl.Phys. A660 (1999) 423-438 | | Subject: | nucl-th | | Affiliation: | Universitaet Mainz), S.S. Kamalov (JINR Dubna) and Shin Nan Yang (NTU Taipei | | Abstract: | Coherent pi0 photo- and electroproduction on 4He and 12C nuclei is investigated in the framework of a distorted wave impulse approximation in momentum space. The elementary process is described by the recently developed unitary isobar model. Medium effects are considered by introducing a phenomenological Delta self-energy. The recent experimental data for 4He and 12C can be well described over a wide range of energies and emission angles by the assumption that the Delta-nuclear interaction saturates. | | Source: | arXiv, nucl-th/9906019 | | Services: | Forum | Review | PDF | Favorites | |
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