SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 14: Neutrinos, Dark Matter II

T 14.3: Vortrag

Montag, 20. März 2023, 17:00–17:15, HSZ/0002

Search for Sub-Relativistic Magnetic Monopoles in IceCube — •Silvia Latseva, Annika Wolf, Jakob Böttcher, Christian Dappen, and Christopher Wiebusch for the IceCube collaboration — III. Physikalisches Institut B, RWTH Aachen University

The IceCube Neutrino Observatory at the South Pole is designed to detect high-energy neutrinos. It is also used for searches for exotic particles such as magnetic monopoles, which are predicted by Grand Unified Theories as relics from the very early Universe. A sub-relativistic magnetic monopole could catalyze nucleon decays in matter via the Rubakov-Callan effect. These decays result in small particle showers along the monopole's track with a spacing ranging from centimeters to tens of meters. IceCube detects the Cherenkov light produced in these processes and records potential monopole events by the so-called SLOw Particle (SLOP) trigger. For the separation of signal from background, we have developed an event selection algorithm based on Boosted Decision Trees (BDTs), which are trained on simulated monopole signals and data-driven backgrounds. This talk will give an update on the search for sub-relativistic monopoles in IceCube.