Adjusting neutrino interaction models and evaluating uncertainties using NOvA near detector data
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2020
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The two-detector design of the NOvA neutrino
oscillation experiment, in which two functionally identical
detectors are exposed to an intense neutrino beam, aids in
canceling leading order effects of cross-section uncertain ties. However, limited knowledge of neutrino interaction
cross sections still gives rise to some of the largest system atic uncertainties in current oscillation measurements. We
show contemporary models of neutrino interactions to be
discrepant with data from NOvA, consistent with discrep ancies seen in other experiments. Adjustments to neutrino
interaction models in GENIE are presented, creating an effec tive model that improves agreement with our data. We also
describe systematic uncertainties on these models, includ ing uncertainties on multi-nucleon interactions from a newly
developed procedure using NOvA near detector data.
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ACERO, M. A. et al. Adjusting neutrino interaction models and evaluating uncertainties using NOvA near detector data. European Physical Journal C, Berlim, v. 80, e1119, 2020. DOI: 10.1140/epjc/s10052-020-08577-5. Disponível em: https://link.springer.com/article/10.1140/epjc/s10052-020-08577-5. Acesso em: 16 maio 2023.