We provide supporting details for the search for a sterile neutrino using data collected over 10.7 years at the IceCube Neutrino Observatory. The analysis uses atmospheric muon-flavored neutrinos from 0.5 to 100 TeV that traverse Earth to reach the IceCube detector and finds a best-fit point at and with a goodness-of-fit p value of 12% and consistency with the null hypothesis of no oscillations to sterile neutrinos with a p value of 3.1%. Several improvements were made over past analyses, which are reviewed in this article, including upgrades to the reconstruction and the study of sources of systematic uncertainty. We provide details of the fit quality and discuss stability tests that split the data for separate samples, comparing results. We find that the fits are consistent between split datasets.
Abbasi, R., et al. "Methods and stability tests associated with the sterile neutrino search using improved high-energy <math display='inline'> <msub> <mi>ν</mi> <mi>μ</mi> </msub> </math> event reconstruction in IceCube." Physical Review. D., vol. 110, no. 9, Nov. 2024. https://doi.org/10.1103/PhysRevD.110.092009
Abbasi, R., Ackermann, M., Adams, J., Agarwalla, S. K., Aguilar, J. A., Ahlers, M., Alameddine, J. M., Amin, N. M., Andeen, K., Argüelles, C., Ashida, Y., Athanasiadou, S., Ausborm, L., Axani, S. N., Bai, X., Balagopal, A., Baricevic, M., Barwick, S. W., ... Zimmerman, M. (2024). Methods and stability tests associated with the sterile neutrino search using improved high-energy <math display='inline'> <msub> <mi>ν</mi> <mi>μ</mi> </msub> </math> event reconstruction in IceCube. Physical Review. D., 110(9). https://doi.org/10.1103/PhysRevD.110.092009
Abbasi, R., Ackermann, M., Adams, J., et al., "Methods and stability tests associated with the sterile neutrino search using improved high-energy <math display='inline'> <msub> <mi>ν</mi> <mi>μ</mi> </msub> </math> event reconstruction in IceCube," Physical Review. D. 110, no. 9 (2024), https://doi.org/10.1103/PhysRevD.110.092009
@article{osti_2477465,
author = {Abbasi, R. and Ackermann, M. and Adams, J. and Agarwalla, S. K. and Aguilar, J. A. and Ahlers, M. and Alameddine, J. M. and Amin, N. M. and Andeen, K. and Argüelles, C. and others},
title = {Methods and stability tests associated with the sterile neutrino search using improved high-energy <math display='inline'> <msub> <mi>ν</mi> <mi>μ</mi> </msub> </math> event reconstruction in IceCube},
annote = { We provide supporting details for the search for a 3 + 1 sterile neutrino using data collected over 10.7 years at the IceCube Neutrino Observatory. The analysis uses atmospheric muon-flavored neutrinos from 0.5 to 100 TeV that traverse Earth to reach the IceCube detector and finds a best-fit point at sin 2 ( 2 θ 24 ) = 0.16 and Δ m 41 2 = 3.5 eV 2 with a goodness-of-fit p value of 12% and consistency with the null hypothesis of no oscillations to sterile neutrinos with a p value of 3.1%. Several improvements were made over past analyses, which are reviewed in this article, including upgrades to the reconstruction and the study of sources of systematic uncertainty. We provide details of the fit quality and discuss stability tests that split the data for separate samples, comparing results. We find that the fits are consistent between split datasets. Published by the American Physical Society 2024 },
doi = {10.1103/PhysRevD.110.092009},
url = {https://www.osti.gov/biblio/2477465},
journal = {Physical Review. D.},
issn = {ISSN 2470-0010},
number = {9},
volume = {110},
place = {United States},
publisher = {American Physical Society},
year = {2024},
month = {11}}
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 524, Issue 1-3https://doi.org/10.1016/j.nima.2004.01.065
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 601, Issue 3https://doi.org/10.1016/j.nima.2009.01.001
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 711https://doi.org/10.1016/j.nima.2013.01.054
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 736https://doi.org/10.1016/j.nima.2013.10.074