2021/07/24 by Teruyuki Kitabayashi · 7 citations
Computer Science · Physics and Astronomy · #Astrophysics #Computational Physics and Python Applications #Cosmology #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark energy #Dark matter #Dimensionless quantity #Electron #Gravitational wave #Hot dark matter #Lepton #Light dark matter #Mixed dark matter #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Primordial black hole #Quantum mechanics #Scalar field dark matter #hep-ph
paper · pdf · doi:10.1093/ptep/ptac025
published in arXiv (Cornell University) 2022(3) (Cornell University) · 23 pages, 11 figures. Accepted for publication in Progress of Theoretical and Experimental Physics
openalex publication_date 2021/07/24 · arxiv created 2022/02/01 · openalex created_date 2022/02/08 · arxiv updated 2022/03/09 · openalex updated_date 2026/08/05
We show that if the lepton flavor violating μ→ e γ process is observed in the MEG II experiment, the initial density of primordial black holes (PBHs) can be constrained with the scotogenic dark matter. As a benchmark case, if the PBH evaporation occurs in the radiation dominated era, the initial density may be 2× 10-17 \lesssim β\lesssim 3 × 10-16 for O (TeV) scale dark sector in the scotogenic model where β=ρ\rm PBH/ρ\rm rad is the ratio of the PBH density ρ\rm PBH to the radiation density ρ\rm rad at the time of PBH formation. As an other benchmark case, if PBHs evaporate in the PBH dominated era, the initial density may be 1 × 10-8 \lesssim β\lesssim 3 × 10-7 for O (GeV) scale dark matter with other O (TeV) scale particles in the scotogenic model.