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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.)

Impact of final state interactions on neutrino-nucleon pion production cross sections extracted from neutrino-deuteron reaction data

Texto completo
Autor(es):
Nakamura, S. X. [1, 2] ; Kamano, H. [3] ; Sato, T. [3, 4]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Univ Cruzeiro Sul, LFTC, BR-01506000 Sao Paulo, SP - Brazil
[2] Univ Sci & Technol China, Hefei 230026, Anhui - Peoples R China
[3] Osaka Univ, Res Ctr Nucl Phys, Ibaraki, Osaka 5670047 - Japan
[4] KEK, KEK Theory Ctr, IPNS, J PARC Branch, Tokai, Ibaraki 3191106 - Japan
Número total de Afiliações: 4
Tipo de documento: Artigo Científico
Fonte: Physical Review D; v. 99, n. 3 FEB 20 2019.
Citações Web of Science: 3
Resumo

The current and near-future neutrino-oscillation experiments require significantly improved neutrinonucleus reaction models. Neutrino-nucleon pion production data play a crucial role to validate corresponding elementary amplitudes that go into such neutrino-nucleus models. Thus, the currently available data extracted from charged-current neutrino-deuteron reaction data (nu(mu)d -> mu(-)pi NN) must be corrected for nuclear effects such as the Fermi motion and final state interactions ( FSI). We study nu(mu)d -> mu(-)pi NN with a theoretical model including the impulse mechanism supplemented by FSI from NN and pi N rescatterings. An analysis of the spectator momentum distributions reveals that the FSI effects significantly reduce the spectra over the quasifree peak region and leads to a useful recipe to extract information of elementary nu(mu)d -> mu(-)pi NN processes using nu(mu)d -> mu(-)pi NN data, with the important FSI corrections taken into account. We provide nu(mu)d -> mu(-)pi N total cross sections by correcting the deuterium bubble chamber data for the FSI and Fermi motion. The results will bring a significant improvement on neutrino-nucleus reaction models for the near-future neutrino-oscillation experiments. (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