Effect of the $2p2h$ cross-section uncertainties on an analysis of neutrino oscillations

Abstract

We report the results of a study aimed at quantifying the impact on the oscillation analysis of the uncertainties associated with the description of the neutrino-nucleus cross section in the two-particle--two-hole sector. The results of our calculations, based on the kinematic method of energy reconstruction and carried out comparing two data-driven approaches, show that the existing discrepancies in the neutrino cross sections have a sizable effect on the extracted oscillation parameters, particularly in the antineutrino channel.

arXiv comment7 pages, 5 figures

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• Ab initio calculation of neutral-current $\nu$-${}^{12}$C inclusive quasielastic scattering
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• Progress in measurements of 0.1--10 GeV neutrino-nucleus scattering and anticipated results from future experiments
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• Weak quasielastic electroproduction of hyperons with polarization observables
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• Neutrino Cross Sections: Status and Prospects
• The physics of neutrino cross sections: theoretical studies
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