Reconstructing Neutrino Energy using CNNs for GeV Scale IceCube Events

Abstract

Measurements of neutrinos at and below 10 GeV provide unique constraints of neutrino oscillation parameters as well as probes of potential Non-Standard Interactions (NSI). The IceCube Neutrino Observatory's DeepCore array is designed to detect neutrinos down to GeV energies. IceCube has built the world's largest data set of neutrinos >10 GeV, making searches for NSI a computational challenge. This work describes the use of convolutional neural networks (CNNs) to improve the energy reconstruction resolution and speed of reconstructing O(10 GeV) neutrino events in IceCube. Compared to current likelihood-based methods which take seconds to minutes, the CNN is expected to provide approximately a factor of 2 improvement in energy resolution while reducing the reconstruction time per event to milliseconds, which is essential for processing large datasets.

arXiv commentPresented at the 37th International Cosmic Ray Conference (ICRC 2021). See arXiv:2107.06966 for all IceCube contributions. 8 pages. 16 figures

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Cited by in corpus (4)

• Low Energy Event Reconstruction in IceCube DeepCore
• Using Convolutional Neural Networks to Reconstruct Energy of GeV Scale IceCube Neutrinos
• Direction Reconstruction using a CNN for GeV-Scale Neutrinos in IceCube
• Resolution Limiting Factors in Low-Energy Cascade Zenith Angle Reconstruction with the IceCube Upgrade