2021/09/30 by IceCube Collaboration, R. Abbasi, M. Ackermann +403 · 30 citations
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #COSMIC cancer database #Cosmic ray #Flux (metallurgy) #Ionosphere and magnetosphere dynamics #Limit (mathematics) #Magnetic flux #Magnetic monopole #Solar and Space Plasma Dynamics #astro-ph.HE #hep-ex
paper · pdf · doi:10.1103/physrevlett.128.051101
published in Physical Review Letters 128(5), 051101 (American Physical Society) · Updated to match the published version in PRL
openalex created_date 2021/10/11 · arxiv created 2022/02/02 · openalex publication_date 2022/02/02 · arxiv updated 2022/02/03 · openalex updated_date 2026/08/09
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 0.750c and 0.995c, without any explicit restriction on the monopole mass. We constrain the flux of relativistic cosmic magnetic monopoles to a level below 2.0×10-19 cm-2 s-1 sr-1 over the majority of the targeted speed range. This result constitutes the most strict upper limit to date for magnetic monopoles with β≳0.8 and up to β∼0.995 and fills the gap between existing limits on the cosmic flux of nonrelativistic and ultrarelativistic magnetic monopoles.