Oct 23 – 27, 2023
Istituto Veneto di Scienze, Lettere ed Arti
Europe/Rome timezone
opening day available in streaming on the YouTube channel of the Physics and Astronomy Dpt. of the University of Padova: https://youtu.be/t_9s2ALOFGQ

Seasonal Variations of the Atmospheric Neutrino Flux measured in IceCube

Oct 26, 2023, 6:15 PM
20m
Palazzo Loredan,Sala delle Adunanze

Palazzo Loredan,Sala delle Adunanze

Contributed Parallel Talk Neutrino Telescopes & Multi-messenger Neutrino Telescopes

Speaker

Karolin Hymon (TU Dortmund University)

Description

The IceCube Neutrino Observatory measures high-energy atmospheric neutrinos with high statistics. These atmospheric muon neutrinos are produced in cosmic ray interactions in the atmosphere, mainly by the decay of pions and kaons. The rate of the measured neutrinos is affected by seasonal temperature and pressure variations in the stratosphere, which are expected to increase with the particle's energy. In this contribution, seasonal energy spectra are obtained using a novel spectrum unfolding approach, the Dortmund Spectrum Estimation Algorithm (DSEA+), in which the energy distribution from 125 GeV to 10 TeV is estimated from measured quantities with machine learning algorithms. We determined the seasonal spectra differences with respect to the average annual flux from 11.5 years of IceCube's atmospheric muon neutrino data.

Primary author

Karolin Hymon (TU Dortmund University)

Co-author

Tim Ruhe (TU Dortmund University)

Presentation materials