IceCube Search for Earth-traversing ultra-high energy Neutrinos

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    • uploaded September 2, 2021

    Discussion timeslot (ZOOM-Meeting): 14. July 2021 - 18:00
    ZOOM-Meeting URL: https://desy.zoom.us/j/91999581729
    ZOOM-Meeting ID: 91999581729
    ZOOM-Meeting Passcode: ICRC2021
    Corresponding Session: https://icrc2021-venue.desy.de/channel/35-Upgoing-Tau-Neutrinos-Present-and-Future-NU/114
    Live-Stream URL: https://icrc2021-venue.desy.de/livestream/Discussion-05/6

    Abstract:
    'The search for ultra-high energy neutrinos is more than half a century old. While the hunt for these neutrinos has led to major leaps in neutrino physics, including the detection of astrophysical neutrinos, neutrinos at the EeV energy scale remain undetected. Proposed strategies for the future have mostly been focused on direct detection of the first neutrino interaction, or the decay shower of the resulting charged particle. Here we present an analysis that uses, for the first time, an indirect detection strategy for EeV neutrinos. We focus on tau neutrinos that have traversed Earth, and show that they reach the IceCube detector, unabsorbed, at energies greater than 100 TeV for most trajectories. This opens up the search for ultra-high energy neutrinos to the entire sky. We use ten years of IceCube data to perform an analysis that looks for secondary neutrinos in the northern sky, and highlight the promise such a strategy can have in the next generation of experiments when combined with direct detection techniques.'

    Authors: Ibrahim Safa | Carlos Arguelles | for the IceCube collaboration
    Collaboration: IceCube

    Indico-ID: 1262
    Proceeding URL: https://pos.sissa.it/395/1170

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    Presenter:

    Ibrahim Safa


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