| Texto completo | |
| Autor(es): |
Nakamura, Satoshi X.
Número total de Autores: 1
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| Tipo de documento: | Artigo Científico |
| Fonte: | FEW-BODY SYSTEMS; v. 59, n. 5 SEP 2018. |
| Citações Web of Science: | 0 |
| Resumo | |
Data for pion photo-productions off the neutron (gamma n -> pi N) have been primarily extracted from deuteron-target data (gamma d -> pi NN) by applying kinematical cuts thereby isolating the quasi-free samples. We critically examine if the neutron-target data obtained through this conventional procedure can be contaminated by final state interactions (FSI) and/or the kinematical cuts. The analysis is conducted with a theoretical model for gamma d -> pi NN that takes account of the impulse mechanisms supplemented by the NN and pi N rescattering mechanisms. We show that the FSI effects still visibly remain in the extracted. gamma `n' -> pi N unpolarized cross sections and polarization asymmetries E even after the kinematical cuts are applied. We also find the FSI effects on gamma `n' -> pi(0)n can be somewhat different from those on gamma `p'-> pi(0) p. (AU) | |
| Processo FAPESP: | 16/15618-8 - Análise de Tau e pesados méson hadrônicas decaimentos e neutrino-núcleo interações, para estruturas e interações hadron, e física além do modelo padrão |
| Beneficiário: | Kazuo Tsushima |
| Modalidade de apoio: | Auxílio à Pesquisa - Pesquisador Visitante - Internacional |