2008/06/30 by D. P. Hogan, Dominique Besson, D. Z. Besson +5
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #astro-ph
paper · pdf · doi:10.1103/physrevd.78.075031
published as Phys.Rev.D78:075031,2008 · 16 pages, 6 figures. Accepted for publication in Phys. Rev. D. Minor revisions, including expanded discussion of monopole energy uncertainty
openalex publication_date 2008/10/30 · arxiv created 2008/11/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We report an upper limit on the flux of relativistic monopoles based on the nonobservation of in-ice showers by the Radio Ice Cherenkov Experiment (RICE) at the South Pole. We obtain a 95% C.L. limit of order 10^\ensuremath-18 (cm2 s sr)^\ensuremath-1 for intermediate-mass monopoles of 107\ensuremath≤\ensuremathγ\ensuremath≤1012 at the anticipated energy Etot=1016 GeV. This bound is over an order of magnitude stronger than all previously published experimental limits for this range of boost parameters \ensuremathγ and exceeds 2 orders of magnitude improvement over most of the range. We review the physics of radio detection, describe a Monte Carlo simulation including continuous and stochastic energy losses, and compare to previous experimental limits.