2021/07/31 by Felipe F. Freitas, Carlos A. R. Herdeiro, António P. Morais +5 · 1 citation
Physics and Astronomy · #hep-ph #astro-ph.HE #gr-qc #hep-th
paper · pdf · doi:10.1088/1475-7516/2021/12/047
27 pages, 2 figures
arxiv created 2021/12/19 · arxiv updated 2022/01/05
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 ∼ M_\odot to ∼ 1010 M_\odot, 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.