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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Photo- and Electro-excitation of Bound Neutrons and Protons

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Autor(es):
Nakamura, Satoshi X.
Número total de Autores: 1
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
Linha de fomento: Auxílio à Pesquisa - Pesquisador Visitante - Internacional