Roman Pasechnik
Senior lecturer
Ultralight bosons for strong gravity applications from simple Standard Model extensions
Author
Summary, in English
We construct families, and concrete examples, of simple extensions of the Standard Model that can yield ultralight real or complex vectors or scalars with potential astrophysical relevance. Specifically, the mass range for these putative fundamental bosons (∼ 10-10-10-20 eV) would lead dynamically to both new non-black hole compact objects (bosonic stars) and new non-Kerr black holes, with masses of ∼ Mo˙ to ∼ 1010 Mo˙, corresponding to the mass range of astrophysical black hole candidates (from stellar mass to supermassive). For each model, we study the properties of the mass spectrum and interactions after spontaneous symmetry breaking, discuss its theoretical viability and caveats, as well as some of its potential and most relevant phenomenological implications linking them to the physics of compact objects.
Department/s
- Theoretical Particle Physics - Has been reorganised
Publishing year
2021-12
Language
English
Publication/Series
Journal of Cosmology and Astroparticle Physics
Volume
2021
Issue
12
Document type
Journal article
Publisher
IOP Publishing
Topic
- Subatomic Physics
Keywords
- axions
- gravity
- massive stars
- particle physics - cosmology connection
Status
Published
ISBN/ISSN/Other
- ISSN: 1475-7516