2009/06/30 by Matthew Lake, Steve Thomas, Steven Thomas +1 · 21 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmic string #Cosmology and Gravitation Theories #Non-critical string theory #Particle physics theoretical and experimental studies #Scaling #String (physics) #String field theory #String theory #Type (biology) #Type I string theory #astro-ph.CO #hep-ph #hep-th
paper · pdf · doi:10.1088/1126-6708/2009/12/033
published in Journal of High Energy Physics 2009(12), 033 (Springer Nature) · 45 pages, 9 figures, LaTeX; published version
openalex publication_date 2009/12/09 · arxiv created 2010/02/05 · arxiv updated 2010/02/08 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We consider a model of static cosmic string loops in type IIB string theory, where the strings wrap cycles within the internal space. The strings are not topologically stabilised, however the presence of a lifting potential traps the windings giving rise to kinky cycloops. We find that PBH formation occurs at early times in a small window, whilst at late times we observe the formation of dark matter relics in the scaling regime. This is in stark contrast to previous predictions based on field theoretic models. We also consider the PBH contribution to the mass density of the universe, and use the experimental data to impose bounds on the string theory parameters.