Numerical Implementation of lepton-nucleus interactions and its effect on neutrino oscillation analysis

Abstract

We discuss the implementation of the nuclear model based on realistic nuclear spectral functions in the GENIE neutrino interaction generator. Besides improving on the Fermi gas description of the nuclear ground state, our scheme involves a new prescription for $Q^2$ selection, meant to efficiently enforce energy momentum conservation. The results of our simulations, validated through comparison to electron scattering data, have been obtained for a variety of target nuclei, ranging from carbon to argon, and cover the kinematical region in which quasi elastic scattering is the dominant reaction mechanism. We also analyse the influence of the adopted nuclear model on the determination of neutrino oscillation parameters.

19 pages, 35 figures, version accepted by Phys. Rev. D

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• Spectral measurement of electron antineutrino oscillation amplitude and frequency at Daya Bay
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• Measurement of the ${\nu }_{\mu }$ charged current quasi-elastic cross-section on carbon with the T2K on-axis neutrino beam
• Missing energy and the measurement of the CP-violating phase in neutrino oscillations
• Progress in measurements of 0.1--10 GeV neutrino-nucleus scattering and anticipated results from future experiments
• Effect of the $2p2h$ cross-section uncertainties on an analysis of neutrino oscillations
• Measurement of the Ar(e,e${}^{\prime }$ p) and Ti(e,e${}^{\prime }$ p) cross sections in Jefferson Lab Hall A
• Radiative (anti)neutrino energy spectra from muon, pion, and kaon decays
• QED medium effects in (anti)neutrino-nucleus and electron-nucleus scattering: elastic scattering on nucleons
• Summary of Long-Baseline Systematics Session at CETUP*2014
• Resonance axial-vector mass from experiments on neutrino-hydrogen and neutrino-deuterium scattering