1996/01/18 by Edward W. Kolb, Antonio Riotto · 6 citations
Physics and Astronomy · #Annihilation #Component (thermodynamics) #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark matter #Energy (signal processing) #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Supersymmetry #astro-ph #hep-ph
paper · pdf · doi:10.1103/physrevd.54.3722
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 54(6), 3722-3726 (American Physical Society) · 13 page LaTeX file (no figures)
arxiv created 1996/01/18 · openalex publication_date 1996/09/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In a class of low-energy supersymmetry models the photino is a natural dark-matter candidate. We investigate the effects of post-freeze-out photino annihilations that generate electromagnetic cascades and lead to photodestruction of 4He and subsequent overproduction of D and 3He. We also generalize our analysis of electromagnetic showers to include those from a generic dark-matter component whose relic abundance is not determined by the self-annihilation cross section.