1996/04/18 by Glenn D. Starkman, Tanmay Vachaspati · 2 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #astro-ph #hep-ph
paper · pdf · doi:10.1103/physrevd.53.r6711
published as Phys.Rev.D53:6711-6714,1996 · 11 pages; added reference to recent observations of low energy antiprotons
arxiv created 1996/04/18 · openalex publication_date 1996/06/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A possible signature of a class of superconducting cosmic strings trapped in the Milky Way plasma is the emission of low energy antiprotons due to baryon-number-violating processes on the string. We find the terrestrial flux and the energy spectrum of such antiprotons. Current observational bounds on the flux of low energy antiprotons place a lower bound on the string tension which is comparable to that given by the electroweak scale.