Events on Friday, October 31st, 2025
- Preliminary Exam
- Performance Characterization of the IceCube Upgrade and Detection of First Neutrinos
- Time: 1:15 pm - 3:15 pm
- Place: Chamberlin Hall Room 5310
- Speaker: Delaney Butterfield
- Abstract: The IceCube Upgrade is an extension of the existing IceCube Neutrino Observatory and will be deployed in the upcoming 2025/2026 austral summer. The instrumentation volume, consisting of seven new strings, will be 200 times more densely instrumented than IceCube to target lower energy atmospheric neutrino interactions. The additional strings will feature new optical modules, which will more than triple the number of PMT channels in the detector. In this presentation, I describe the new detector configuration and discuss my work on the low-level data flow. More PMT channels and more sensitive modules result in a higher data rate up the long cables of the detector leading to the surface. To reduce this data rate, we have introduced a new step in the data flow known as the "Pre-Trigger." Unique to the Upgrade, the Pre-Trigger represents the first step in deciding which PMT signals to keep when building events. In addition to my work on the in-ice data flow, I will present my initial studies on characterizing the early data we expect to see from the new strings, and my work towards performing a full analysis of a detector verification and commissioning sample of new data from the IceCube Upgrade. This analysis will highlight atmospheric neutrino events in the 3-50 GeV energy range which we would not see without the Upgrade, and how this early dataset will set the stage for future analyses.
- Host: Albrecht Karle
- Physics Department Colloquium
- Title to be announced
- Time: 3:30 pm - 4:30 pm
- Place: Chamberlin 2241
- Speaker: Imre Bartos, University of Florida
- Host: Ke Fang