Dortmund 2021 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 22: Experimental techniques in astroparticle physics I
T 22.1: Gruppenbericht
Montag, 15. März 2021, 16:00–16:20, Tv
The IceCube Upgrade Project — •Martin Rongen for the IceCube collaboration — Johannes Gutenberg Universität Mainz, Institut für Physik
The IceCube Neutrino Observatory instruments about 1 km3 of deep, glacial ice at the geographic South Pole with 5160 photomultipliers to detect Cherenkov light of charged relativistic particles. Exact models of the optical properties of the natural ice are crucial since their shortcomings are a major source of systematic uncertainty in physics analyses.
Following IceCube’s recent success in the discovery of an astrophysical neutrino flux, strong indications for the first neutrino point sources, and competitive measurements of neutrino oscillation parameters, the detector is now set to be upgraded. This IceCube Upgrade will consist of seven new strings to be deployed near the center of the existing IceCube array in 2022/23.
In addition to a further 700 novel optical sensors (of various designs including variants with a segmented photocathode and enhanced-UV sensitivity), enabling world-leading neutrino oscillation physics, the Upgrade strings will include unique calibration devices designed to improve the understanding of the ice. The refined calibration resulting from the Upgrade will be applied to the entire archival IceCube data set, improving in particular point source sensitivities. This talk will give an overview of the IceCube Upgrade project including its instrumentation and will detail how we anticipate the improved calibration to impact physics results.