7–9 Apr 2025
Cavendish Laboratory, University of Cambridge
Europe/London timezone

Tau neutrino measurement using track sample in IceCube

7 Apr 2025, 17:00
15m
Lecture Theatre (A2.001)

Lecture Theatre (A2.001)

Parallel talk Cosmic Messengers Cosmic Messengers

Speaker

Dr Teppei Katori (King's College London)

Description

At the IceCube Neutrino Observatory, muon neutrinos are identified by characteristic long tracks due to high energy muons through the charged current (CC) interactions. On the other hand, ~17% of tauons resulting from tau neutrino CC interactions decay to muons and produce long tracks. However, energy sharing between hadronic showers and a muon is different between muon neutrino CC interaction and tau neutrino CC interaction. Therefore, careful recnonstruction of hadron shower energy, or inelasticity, can be used to statistically separate tau neutrinos. Here, we use low energy IceCube track sample, covering 500 GeV - 20 TeV, to look for tau neutrinos potentially the lowest energy astrophysical neutrino signals.

Authors

Alex Wen (Harvard University) Archie Millsop (King's College London) Prof. Carlos Arguelles Delgado (Harvard University) Dr Teppei Katori (King's College London)

Presentation materials

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