DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Measurement of Atmospheric Neutrino Oscillation Parameters Using Convolutional Neural Networks with 9.3 Years of Data in IceCube DeepCore

Journal Article · · Physical Review Letters
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; « less

The DeepCore subdetector of the IceCube Neutrino Observatory provides access to neutrinos with energies above approximately 5 GeV. Data taken between 2012 and 2021 (3387 days) are utilized for an atmospheric ν μ disappearance analysis that studied 150 257 neutrino-candidate events with reconstructed energies between 5 and 100 GeV. An advanced reconstruction based on a convolutional neural network is applied, providing increased signal efficiency and background suppression, resulting in a measurement with both significantly increased statistics compared to previous DeepCore oscillation results and high neutrino purity. For the normal neutrino mass ordering, the atmospheric neutrino oscillation parameters and their 1 σ errors are measured to be Δ m 32 2 = 2.40 0.04 + 0.05 × 10 3 eV 2 and sin 2 θ 23 = 0.54 0.03 + 0.04 . The results are the most precise to date using atmospheric neutrinos, and are compatible with measurements from other neutrino detectors including long-baseline accelerator experiments. Published by the American Physical Society 2025

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
US Department of Energy; USDOE; USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
2529515
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 9 Vol. 134; ISSN 0031-9007; ISSN PRLTAO
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (31)

The high energy neutrino cross-section in the Standard Model and its uncertainty journal August 2011
The design and performance of IceCube DeepCore journal May 2012
The IceCube data acquisition system: Signal capture, digitization, and timestamping
  • Abbasi, R.; Ackermann, M.; Adams, J.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 601, Issue 3 https://doi.org/10.1016/j.nima.2009.01.001
journal April 2009
Calibration and characterization of the IceCube photomultiplier tube
  • Abbasi, R.; Abdou, Y.; Abu-Zayyad, T.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 618, Issue 1-3 https://doi.org/10.1016/j.nima.2010.03.102
journal June 2010
Implementation of Feldman-Cousins corrections and oscillation calculations in the HPC environment for the NOvA Experiment journal January 2019
The IceCube Neutrino Observatory: instrumentation and online systems journal March 2017
A convolutional neural network based cascade reconstruction for the IceCube Neutrino Observatory journal July 2021
Review of Particle Physics journal August 2022
Hadronic interaction model sibyll 2.3 c and inclusive lepton fluxes journal November 2019
Neutrino-nucleon cross-section model tuning in GENIE v3 journal October 2021
Improved measurement of neutrino oscillation parameters by the NOvA experiment journal August 2022
Measurement of atmospheric neutrino mixing with improved IceCube DeepCore calibration and data processing journal July 2023
Atmospheric neutrino oscillation analysis with neutron tagging and an expanded fiducial volume in Super-Kamiokande I–V journal April 2024
Unified approach to the classical statistical analysis of small signals journal April 1998
Three-dimensional calculation of atmospheric neutrinos journal July 2004
Uncertainties in atmospheric neutrino fluxes journal November 2006
Atmospheric neutrino flux calculation using the NRLMSISE-00 atmospheric model journal July 2015
Measurement of atmospheric tau neutrino appearance with IceCube DeepCore journal February 2019
Precision Constraints for Three-Flavor Neutrino Oscillations from the Full MINOS + and MINOS Dataset journal September 2020
Precision Measurement of Reactor Antineutrino Oscillation at Kilometer-Scale Baselines by Daya Bay journal April 2023
Evidence for Oscillation of Atmospheric Neutrinos journal August 1998
Measurement of the Rate of ν e + d → p + p + e − Interactions Produced by B 8 Solar Neutrinos at the Sudbury Neutrino Observatory journal July 2001
Low energy event reconstruction in IceCube DeepCore journal September 2022
Measurements of neutrino oscillation parameters from the T2K experiment using $$3.6\times 10^{21}$$ protons on target journal September 2023
Remarks on the Unified Model of Elementary Particles journal November 1962
ImageNet classification with deep convolutional neural networks journal May 2017
The Large-Sample Distribution of the Likelihood Ratio for Testing Composite Hypotheses journal March 1938
A model independent parametrization of the optical properties of the refrozen IceCube drill holes conference July 2023
Sensitivity of the IceCube Upgrade to Atmospheric Neutrino Oscillations conference July 2023
Measurement of Atmospheric Muon Neutrino Disappearance Using CNN Reconstructions with IceCube conference October 2023
In situ estimation of ice crystal properties at the South Pole using LED calibration data from the IceCube Neutrino Observatory journal January 2024