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  • Letter
  • Open Access

Boosting neutrino mass ordering sensitivity with inelasticity for atmospheric neutrino oscillation measurement

Santiago Giner Olavarrieta1,*, Miaochen Jin (靳淼辰)1,†, Carlos A. Argüelles1,‡, Pablo Fernández2,§, and Ivan Martinez-Soler3,∥

  • *Contact author: santiagoginer@college.harvard.edu
  • †Contact author: miaochenjin@g.harvard.edu
  • ‡Contact author: carguelles@fas.harvard.edu
  • §Contact author: pablo.fernandez@dipc.org
  • ∥Contact author: ivan.j.martinez-soler@durham.ac.uk
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Phys. Rev. D 110, L051101 – Published 30 September, 2024

DOI: https://doi.org/10.1103/PhysRevD.110.L051101

Abstract

In this letter, we study the potential of boosting the atmospheric neutrino experiments sensitivity to the neutrino mass ordering (NMO) sensitivity by incorporating inelasticity measurements. We show how this observable improves the sensitivity to the NMO and the precision of other neutrino oscillation parameters relevant to atmospheric neutrinos, specifically in the IceCube-Upgrade and KM3NeT-ORCA detectors. Our results indicate that an oscillation analysis of atmospheric neutrinos, including inelasticity information, has the potential to enhance the ordering discrimination by several units of χ2 in the assumed scenario of five and three years of running of IceCube-Upgrade and KM3NeT-ORCA detectors, respectively.

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Supplemental Material

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Phys. Rev. D 110, L051101– Published 30 September, 2024
  • Received 7 March 2024
  • Accepted 28 August 2024
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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