4.7 Article

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

期刊

PHYSICAL REVIEW D
卷 99, 期 3, 页码 -

出版社

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.99.031301

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资金

  1. National Natural Science Foundation of China (NSFC) [11625523]
  2. Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [2016/15618-8]
  3. JSPS KAKENHI [25105010, 16K05354, 18K03632]
  4. Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231]
  5. Grants-in-Aid for Scientific Research [18K03632, 25105010, 16K05354] Funding Source: KAKEN

向作者/读者索取更多资源

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.

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