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Neutrino energy reconstruction and the shape of the charged current quasielastic-like total cross section

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Neutrino energy reconstruction and the shape of the charged current quasielastic-like total cross section

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Nieves Pamplona, Juan Miguel; Sánchez Nieto, Federico; Ruiz Simó, Ignacio; Vicente Vacas, Manuel José

Aquest document és un/a article, creat/da en: 2012

We show that because of the multinucleon mechanism effects, the algorithm used to reconstruct the neutrino energy is not adequate when dealing with quasielastic-like events, and a distortion of the total flux unfolded cross section shape is produced. This amounts to a redistribution of strength from high to low energies, which gives rise to a sizable excess (deficit) of low (high) energy neutrinos. This distortion of the shape leads to a good description of the MiniBooNE unfolded CCQE-like cross sections published in Phys.Rev. D81 (2010) 092005. However, these changes in the shape are artifacts of the unfolding process that ignores multinucleon mechanisms.

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