Probing Neutrino-Energy Reconstruction with New Superscaling-Based Observables
Abstract
In this study, we explore the superscaling variable ψ' within the context of neutrino-nucleus charged-current quasielastic interactions. Building on the neutrino-oriented definition of the superscaling variable ψ', we reparametrize it in terms of the neutrino-energy reconstruction bias, thereby establishing a direct conceptual and analytical connection between the superscaling formalism and neutrino-energy reconstruction. This approach allows the hadronic part of the reconstructed ψ' to be expanded around the quasielastic point, yielding new observables that depend only on the outgoing-muon kinematics. At the same time, the resulting distributions remain sensitive to the underlying nuclear dynamics and vary across nuclear models. Among them, a newly identified quantity L1, constructed solely from the outgoing-muon kinematics, provides a nuclear-physics constraint on the neutrino-energy reconstruction bias. This observable largely inherits the scaling properties of ψ' across different neutrino fluxes and nuclear targets. The nuclear-model dependence is investigated using ND280-like νμ and ν̅μ Monte Carlo samples on carbon, generated with several nuclear models implemented in NEUT, NuWro, and GENIE, while the stability across experimental conditions is tested using additional carbon- and argon-based flux-target configurations.
Related
- First Measurement of the Superscaling Variable as a Function of Visible Kinematics in Charged-Current Quasi-Elastic Neutrino--Nucleus Scattering
- Signal selection and model-independent extraction of pionless charged-current muon neutrino cross section using double-differential kinematic imbalance observables on carbon and oxygen with the T2K experiment
- First double-differential measurement of pionless charged-current muon neutrino interactions using kinematic imbalance observables on carbon and oxygen with the T2K experiment
- Probing the neutrino mass through semileptonic decays
- Probing unknown nonperturbative effects in b → s ℓℓ with inclusive and exclusive observables
BibTeX
@misc{amziane2026probing,
title = {{Probing Neutrino-Energy Reconstruction with New Superscaling-Based Observables}},
author = {Lounès Amziane and Soniya Samani and Lorenzo Giannessi and Federico Sánchez},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.15431},
eprint = {2609.15431},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.15431},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Probing Neutrino-Energy Reconstruction with New Superscaling-Based Observables
AU - Lounès Amziane
AU - Soniya Samani
AU - Lorenzo Giannessi
AU - Federico Sánchez
PY - 2026
DA - 2026/09/14
PB - arXiv
DO - 10.48550/arxiv.2609.15431
UR - https://arxiv.org/abs/2609.15431
AB - In this study, we explore the superscaling variable ψ' within the context of neutrino-nucleus charged-current quasielastic interactions. Building on the neutrino-oriented definition of the superscaling variable ψ', we reparametrize it in terms of the neutrino-energy reconstruction bias, thereby establishing a direct conceptual and analytical connection between the superscaling formalism and neutrino-energy reconstruction. This approach allows the hadronic part of the reconstructed ψ' to be expanded around the quasielastic point, yielding new observables that depend only on the outgoing-muon kinematics. At the same time, the resulting distributions remain sensitive to the underlying nuclear dynamics and vary across nuclear models. Among them, a newly identified quantity L_1, constructed solely from the outgoing-muon kinematics, provides a nuclear-physics constraint on the neutrino-energy reconstruction bias. This observable largely inherits the scaling properties of ψ' across different neutrino fluxes and nuclear targets. The nuclear-model dependence is investigated using ND280-like ν_μ and ν̅_μ Monte Carlo samples on carbon, generated with several nuclear models implemented in NEUT, NuWro, and GENIE, while the stability across experimental conditions is tested using additional carbon- and argon-based flux-target configurations.
ER -