2009/05/12 by Hitoshi Murayama, Jing Shu · 1 citation
Physics and Astronomy · #Annihilation #Astrophysics #Cosmology #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark energy #Dark matter #Fermi Gamma-ray Space Telescope #Hot dark matter #Inflation (cosmology) #Light dark matter #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Scalar field dark matter #Theoretical physics #Topological defect #Unification #astro-ph.CO #hep-ph #hep-th
paper · pdf · doi:10.1016/j.physletb.2010.02.037
4 pages, 2 figures and 1 table
arxiv created 2009/05/12 · openalex publication_date 2010/02/20 · arxiv updated 2015/05/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
Kibble mechanism drastically underestimates the production of point-like topological defects, as confirmed recently in atomic and condensed matter systems. If non-thermally produced, they can be cosmological dark matter of mass 1–10 PeV or heavier. If thermalized, skyrmion of mass 1–10 TeV is also a viable dark matter candidate, whose decay may explain e± spectra in cosmic rays recently measured by PAMELA, FERMI, and H.E.S.S. Collaborations. Models that produce magnetic monopoles below the inflation scale, such as Pati–Salam unification, are ruled out unless new annihilation mechanism for monopoles is introduced.