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A simulation model investigation of neutron-oxygen inelastic scattering and subsequent nucleus deexcitation based on experimental data

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arxiv 2506.14388 v2 pith:RVHXII2F submitted 2025-06-17 hep-ex nucl-ex

A simulation model investigation of neutron-oxygen inelastic scattering and subsequent nucleus deexcitation based on experimental data

Y. Hino , Y. Ashida , T. Tano , Y. Koshio This is my paper
classification hep-ex nucl-ex
keywords neutrinodataexperimentalnuclearsimulationdeexcitationdetectorsinteractions
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The nuclear interaction model plays an essential role in understanding neutrino-nucleus interactions in large-scale neutrino detectors. For example, in the Super-Kamiokande experiment, systematic uncertainties regarding atmospheric neutrino interactions on oxygen limit the sensitivity to some physics studies, such as the diffuse supernova neutrino background search. Reduction of such uncertainties necessitates an accurate modeling of nuclear reactions and subsequent nuclear deexcitation. For this purpose, a detailed study was performed by comparing various combinations of simulation models with the newly released neutron experimental data. From this study, it is found that the combination of INCL++ and NucDeEx implemented in a Geant4-based simulation shows a better agreement with the experimental data. The presented result will be referred to improve the future physics studies at neutrino detectors, including the current focus of Super-Kamiokande.

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Cited by 1 Pith paper

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