Search for Relativistic Magnetic Monopoles with Eight Years of IceCube Data

Abstract

We present an all-sky 90\% confidence level upper limit on the cosmic flux of relativistic magnetic monopoles using 2886 days of IceCube data. The analysis was optimized for monopole speeds between 0.750$c$ and 0.995$c$, without any explicit restriction on the monopole mass. We constrain the flux of relativistic cosmic magnetic monopoles to a level below $2.0\times 10^{-19}{\text{cm}}^{-2}{\text{s}}^{-1}{\text{sr}}^{-1}$ over the majority of the targeted speed range. This result constitutes the most strict upper limit to date for magnetic monopoles above the Cherenkov threshold and up to $\beta \sim 0.995$ and fills the gap between existing limits on the cosmic flux of non-relativistic and ultrarelativistic magnetic monopoles

Updated to match the published version in PRL

References in corpus (4)

• Observation and Characterization of a Cosmic Muon Neutrino Flux from the Northern Hemisphere using six years of IceCube data
• Ultra-Relativistic Magnetic Monopole Search with the ANITA-II Balloon-borne Radio Interferometer
• Relativistic Magnetic Monopole Flux Constraints from RICE
• Search for ultrarelativistic magnetic monopoles with the Pierre Auger Observatory

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