Rigidity Analysis with the IceCube Neutrino Observatory*

For the past twelve years, the IceCube observatory has collected data on the products of interactions between cosmic rays and the atmosphere, in events called air showers. There is a well-documented anisotropy in the detected signal that likely results from electromagnetic interactions between charged cosmic rays and interstellar magnetic fields. The topology of this signal changes with energy, transitioning around 100TeV. Recent studies comparing the in-ice and on-ice components of the detector reveal a discrepancy in the topologies between the two. Electromagnetic rigidity dictates the interactions between charged particles and magnetic fields. Therefore, we hypothesized that a study of the topology in rigidity should show more consistency between detectors. The results of our analysis show that detected signals are more consistent when viewed in rigidity rather than energy.