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Dortmund 2021 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 24: Eingeladene Vorträge (Invited Topical Talks) I

T 24.2: Eingeladener Vortrag

Dienstag, 16. März 2021, 14:30–15:00, Audimax

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IceCube Upgrade - The next level in precision neutrino physics at the South Pole — •Lew Classen — WWU Münster, Münster, Germany

Following the discovery of cosmic high energy neutrinos, a competitive measurement of neutrino oscillation parameters and a strong indication for the first neutrino point source, plans for extensions of the IceCube neutrino telescope have matured. IceCube Upgrade, a next-generation low-energy neutrino detector, will be installed in the 2022/23 Antarctic summer season and consist of about 700 novel optical sensors as well as state-of-the-art calibration devices distributed along seven strings located in the central region of the existing array. This upgrade will significantly enhance IceCube's capabilities to measure oscillation parameters. In particular, it will allow for measuring tau neutrino appearance in the atmospheric neutrino flux to unprecedented precision. Providing a test for the unitarity of the neutrino mixing matrix, this result will be a sensitive probe for physics beyond the standard model. The enhanced understanding of the detection medium and sensor response will also reduce IceCube's systematic uncertainties, allowing to revisit more than ten years of archival data with an improved directional and spatial resolution. In addition to its compelling science case, IceCube Upgrade will also pave the path towards IceCube-Gen2, the upcoming next-generation high-energy neutrino telescope at the South Pole. The presentation will address the R&D activities towards the Upgrade as well as the resulting physics potential.

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