2021/01/31 by Basabendu Barman, Purusottam Ghosh, Farinaldo S. Queiroz +1 · 24 citations
Physics and Astronomy · #Astronomy #Astrophysics #Big Bang nucleosynthesis #Cosmology #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark matter #Desert (philosophy) #Multiplet #Nucleosynthesis #Parameter space #Particle physics #Particle physics theoretical and experimental studies #Phenomenology (philosophy) #Physics #Scalar (mathematics) #Stars #Universe #astro-ph.HE #hep-ph
paper · pdf · doi:10.1103/physrevd.104.015040
published in Physical review. D/Physical review. D. 104(1) (American Physical Society) · 17 pages, 10 figures, to appear in PRD
arxiv created 2021/07/09 · openalex publication_date 2021/07/30 · arxiv updated 2021/08/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
We examine the impact of a faster expanding Universe on the phenomenology of scalar dark matter (DM) associated with SU(2)L multiplets. Earlier works with a radiation dominated Universe have reported the presence of desert region for both inert SU(2)L doublet and triplet DM candidates where the DM is underabundant. We find that the existence of a faster expanding component before big bang nucleosynthesis can revive a substantial part of the desert parameter space consistent with relic density requirements and other direct and indirect search bounds. We also review the possible collider search prospects of the newly obtained parameter space and predict that such region might be probed at the future colliders with improved sensitivity via a disappearing/stable charged track.