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Sensitivity of the IceCube Upgrade to Atmospheric Neutrino Oscillations

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arxiv 2307.15295 v1 pith:HLYGUFFI submitted 2023-07-28 astro-ph.HE astro-ph.IMhep-exphysics.ins-det

classification astro-ph.HEastro-ph.IMhep-exphysics.ins-det
keywords icecubewilldeepcoreneutrinoupgradeadditionalenergyevent
verification ladder T0 review T1 audit T2 compute T3 formal
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IceCube DeepCore, the existing low-energy extension of the IceCube Neutrino Observatory, was designed to lower the neutrino detection energy threshold to the GeV range. A new extension, called the IceCube Upgrade, will consist of seven additional strings installed within the DeepCore fiducial volume. The new modules will have spacings of about 20 m horizontally and 3 m vertically, compared to about 40-70 m horizontally and 7 m vertically in DeepCore. It will be deployed in the polar season of 2025/26. This additional hardware features new types of optical modules with multi-PMT configurations, as well as calibration devices. This upgrade will more than triple the number of PMT channels with respect to current IceCube, and will significantly enhance its capabilities in the GeV energy range. However, the increased channel count also poses new computational challenges for the event simulation, selection, and reconstruction. In this contribution we present updated oscillation sensitivities based on the latest advancements in simulation, event selection, and reconstruction techniques.

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Cited by 3 Pith papers

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  1. Search for High-Energy Neutrinos From the Sun Using Ten Years of IceCube Data

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  3. On the Blueprint of Active Galaxies Producing Neutrinos

    astro-ph.HE 2026-07 conditional novelty 4.0 of 10

    Neutrinos from active galaxies are produced in compact X-ray-bright coronae within about ten Schwarzschild radii of the black hole, and such sources may supply the diffuse neutrino flux.

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